/* X-Chat * Copyright (C) 1998 Peter Zelezny. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA * ========================================================================= * * xtext, the text widget used by X-Chat. * By Peter Zelezny . * */ #define GDK_MULTIHEAD_SAFE #define MARGIN 2 /* dont touch. */ #define REFRESH_TIMEOUT 20 #define WORDWRAP_LIMIT 24 #include #include #include #include #include "../../config.h" #include "../common/hexchat.h" #include "../common/fe.h" #include "../common/util.h" #include "../common/hexchatc.h" #include "../common/url.h" #include "../common/marshal.h" #include "fe-gtk.h" #include "xtext.h" #include "fkeys.h" #define charlen(str) g_utf8_skip[*(guchar *)(str)] #ifdef WIN32 #include #include #include #include #else #include #ifdef GDK_WINDOWING_X11 #include #endif #endif /* is delimiter */ #define is_del(c) \ (c == ' ' || c == '\n' || c == '>' || c == '<' || c == 0) /* force scrolling off */ #define dontscroll(buf) (buf)->last_pixel_pos = 0x7fffffff static GtkWidgetClass *parent_class = NULL; struct textentry { struct textentry *next; struct textentry *prev; unsigned char *str; time_t stamp; gint16 str_width; gint16 str_len; gint16 mark_start; gint16 mark_end; gint16 indent; gint16 left_len; GSList *slp; GSList *sublines; guchar tag; guchar pad1; guchar pad2; /* 32-bit align : 44 bytes total */ GList *marks; /* List of found strings */ }; enum { WORD_CLICK, SET_SCROLL_ADJUSTMENTS, LAST_SIGNAL }; /* values for selection info */ enum { TARGET_UTF8_STRING, TARGET_STRING, TARGET_TEXT, TARGET_COMPOUND_TEXT }; static guint xtext_signals[LAST_SIGNAL]; char *nocasestrstr (const char *text, const char *tofind); /* util.c */ int xtext_get_stamp_str (time_t, char **); static void gtk_xtext_render_page (GtkXText * xtext); static void gtk_xtext_calc_lines (xtext_buffer *buf, int); static char *gtk_xtext_selection_get_text (GtkXText *xtext, int *len_ret); static textentry *gtk_xtext_nth (GtkXText *xtext, int line, int *subline); static void gtk_xtext_adjustment_changed (GtkAdjustment * adj, GtkXText * xtext); static void gtk_xtext_scroll_adjustments (GtkXText *xtext, GtkAdjustment *hadj, GtkAdjustment *vadj); static int gtk_xtext_render_ents (GtkXText * xtext, textentry *, textentry *); static void gtk_xtext_recalc_widths (xtext_buffer *buf, int); static void gtk_xtext_fix_indent (xtext_buffer *buf); static int gtk_xtext_find_subline (GtkXText *xtext, textentry *ent, int line); /* static char *gtk_xtext_conv_color (unsigned char *text, int len, int *newlen); */ /* For use by gtk_xtext_strip_color() and its callers -- */ struct offlen_s { guint16 off; guint16 len; guint16 emph; guint16 width; }; typedef struct offlen_s offlen_t; static unsigned char * gtk_xtext_strip_color (unsigned char *text, int len, unsigned char *outbuf, int *newlen, GSList **slp, int strip_hidden); static gboolean gtk_xtext_check_ent_visibility (GtkXText * xtext, textentry *find_ent, int add); static int gtk_xtext_render_page_timeout (GtkXText * xtext); static int gtk_xtext_search_offset (xtext_buffer *buf, textentry *ent, unsigned int off); static GList * gtk_xtext_search_textentry (xtext_buffer *, textentry *); static void gtk_xtext_search_textentry_add (xtext_buffer *, textentry *, GList *, gboolean); static void gtk_xtext_search_textentry_del (xtext_buffer *, textentry *); static void gtk_xtext_search_textentry_fini (gpointer, gpointer); static void gtk_xtext_search_fini (xtext_buffer *); static gboolean gtk_xtext_search_init (xtext_buffer *buf, const gchar *text, gtk_xtext_search_flags flags, GError **perr); static char * gtk_xtext_get_word (GtkXText * xtext, int x, int y, textentry ** ret_ent, int *ret_off, int *ret_len, GSList **slp); /* Avoid warning messages for this unused function */ #if 0 /* gives width of a 8bit string - with no mIRC codes in it */ static int gtk_xtext_text_width_8bit (GtkXText *xtext, unsigned char *str, int len) { int width = 0; while (len) { width += xtext->fontwidth[*str]; str++; len--; } return width; } #endif #define xtext_draw_bg(xt,x,y,w,h) gdk_draw_rectangle(xt->draw_buf, xt->bgc, 1, x, y, w, h); /* ======================================= */ /* ============ PANGO BACKEND ============ */ /* ======================================= */ #define EMPH_ITAL 1 #define EMPH_BOLD 2 #define EMPH_HIDDEN 4 static PangoAttrList *attr_lists[4]; static int fontwidths[4][128]; static PangoAttribute * xtext_pango_attr (PangoAttribute *attr) { attr->start_index = PANGO_ATTR_INDEX_FROM_TEXT_BEGINNING; attr->end_index = PANGO_ATTR_INDEX_TO_TEXT_END; return attr; } static void xtext_pango_init (GtkXText *xtext) { int i, j; char buf[2] = "\000"; if (attr_lists[0]) { for (i = 0; i < (EMPH_ITAL | EMPH_BOLD); i++) pango_attr_list_unref (attr_lists[i]); } for (i = 0; i < sizeof attr_lists / sizeof attr_lists[0]; i++) { attr_lists[i] = pango_attr_list_new (); switch (i) { case 0: /* Roman */ break; case EMPH_ITAL: /* Italic */ pango_attr_list_insert (attr_lists[i], xtext_pango_attr (pango_attr_style_new (PANGO_STYLE_ITALIC))); break; case EMPH_BOLD: /* Bold */ pango_attr_list_insert (attr_lists[i], xtext_pango_attr (pango_attr_weight_new (PANGO_WEIGHT_BOLD))); break; case EMPH_ITAL | EMPH_BOLD: /* Italic Bold */ pango_attr_list_insert (attr_lists[i], xtext_pango_attr (pango_attr_style_new (PANGO_STYLE_ITALIC))); pango_attr_list_insert (attr_lists[i], xtext_pango_attr (pango_attr_weight_new (PANGO_WEIGHT_BOLD))); break; } /* Now initialize fontwidths[i] */ pango_layout_set_attributes (xtext->layout, attr_lists[i]); for (j = 0; j < 128; j++) { buf[0] = j; pango_layout_set_text (xtext->layout, buf, 1); pango_layout_get_pixel_size (xtext->layout, &fontwidths[i][j], NULL); } } xtext->space_width = fontwidths[0][' ']; } static void backend_font_close (GtkXText *xtext) { pango_font_description_free (xtext->font->font); } static void backend_init (GtkXText *xtext) { if (xtext->layout == NULL) { xtext->layout = gtk_widget_create_pango_layout (GTK_WIDGET (xtext), 0); if (xtext->font) pango_layout_set_font_description (xtext->layout, xtext->font->font); } } static void backend_deinit (GtkXText *xtext) { if (xtext->layout) { g_object_unref (xtext->layout); xtext->layout = NULL; } } static PangoFontDescription * backend_font_open_real (char *name) { PangoFontDescription *font; font = pango_font_description_from_string (name); if (font && pango_font_description_get_size (font) == 0) { pango_font_description_free (font); font = pango_font_description_from_string ("sans 11"); } if (!font) font = pango_font_description_from_string ("sans 11"); return font; } static void backend_font_open (GtkXText *xtext, char *name) { PangoLanguage *lang; PangoContext *context; PangoFontMetrics *metrics; xtext->font = &xtext->pango_font; xtext->font->font = backend_font_open_real (name); if (!xtext->font->font) { xtext->font = NULL; return; } backend_init (xtext); pango_layout_set_font_description (xtext->layout, xtext->font->font); xtext_pango_init (xtext); /* vte does it this way */ context = gtk_widget_get_pango_context (GTK_WIDGET (xtext)); lang = pango_context_get_language (context); metrics = pango_context_get_metrics (context, xtext->font->font, lang); xtext->font->ascent = pango_font_metrics_get_ascent (metrics) / PANGO_SCALE; xtext->font->descent = pango_font_metrics_get_descent (metrics) / PANGO_SCALE; pango_font_metrics_unref (metrics); } static int backend_get_text_width_emph (GtkXText *xtext, guchar *str, int len, int emphasis) { int width; int deltaw; int mbl; if (*str == 0) return 0; if ((emphasis & EMPH_HIDDEN)) return 0; emphasis &= (EMPH_ITAL | EMPH_BOLD); width = 0; pango_layout_set_attributes (xtext->layout, attr_lists[emphasis]); while (len > 0) { mbl = charlen(str); if (*str < 128) deltaw = fontwidths[emphasis][*str]; else { pango_layout_set_text (xtext->layout, str, mbl); pango_layout_get_pixel_size (xtext->layout, &deltaw, NULL); } width += deltaw; str += mbl; len -= mbl; } return width; } static int backend_get_text_width_slp (GtkXText *xtext, guchar *str, GSList *slp) { int width = 0; while (slp) { offlen_t *meta; meta = slp->data; width += backend_get_text_width_emph (xtext, str, meta->len, meta->emph); str += meta->len; slp = g_slist_next (slp); } return width; } /* simplified version of gdk_draw_layout_line_with_colors() */ static void xtext_draw_layout_line (GdkDrawable *drawable, GdkGC *gc, gint x, gint y, PangoLayoutLine *line) { GSList *tmp_list = line->runs; PangoRectangle logical_rect; gint x_off = 0; while (tmp_list) { PangoLayoutRun *run = tmp_list->data; pango_glyph_string_extents (run->glyphs, run->item->analysis.font, NULL, &logical_rect); gdk_draw_glyphs (drawable, gc, run->item->analysis.font, x + x_off / PANGO_SCALE, y, run->glyphs); x_off += logical_rect.width; tmp_list = tmp_list->next; } } static void backend_draw_text_emph (GtkXText *xtext, int dofill, GdkGC *gc, int x, int y, char *str, int len, int str_width, int emphasis) { GdkGCValues val; GdkColor col; PangoLayoutLine *line; pango_layout_set_attributes (xtext->layout, attr_lists[emphasis]); pango_layout_set_text (xtext->layout, str, len); if (dofill) { gdk_gc_get_values (gc, &val); col.pixel = val.background.pixel; gdk_gc_set_foreground (gc, &col); gdk_draw_rectangle (xtext->draw_buf, gc, 1, x, y - xtext->font->ascent, str_width, xtext->fontsize); col.pixel = val.foreground.pixel; gdk_gc_set_foreground (gc, &col); } line = pango_layout_get_lines (xtext->layout)->data; xtext_draw_layout_line (xtext->draw_buf, gc, x, y, line); } static void xtext_set_fg (GtkXText *xtext, GdkGC *gc, int index) { gdk_gc_set_foreground (gc, &xtext->palette[index]); } static void xtext_set_bg (GtkXText *xtext, GdkGC *gc, int index) { gdk_gc_set_background (gc, &xtext->palette[index]); } static void gtk_xtext_init (GtkXText * xtext) { xtext->pixmap = NULL; xtext->io_tag = 0; xtext->add_io_tag = 0; xtext->scroll_tag = 0; xtext->max_lines = 0; xtext->col_back = XTEXT_BG; xtext->col_fore = XTEXT_FG; xtext->nc = 0; xtext->pixel_offset = 0; xtext->underline = FALSE; xtext->hidden = FALSE; xtext->font = NULL; xtext->layout = NULL; xtext->jump_out_offset = 0; xtext->jump_in_offset = 0; xtext->ts_x = 0; xtext->ts_y = 0; xtext->clip_x = 0; xtext->clip_x2 = 1000000; xtext->clip_y = 0; xtext->clip_y2 = 1000000; xtext->urlcheck_function = NULL; xtext->color_paste = FALSE; xtext->skip_border_fills = FALSE; xtext->skip_stamp = FALSE; xtext->render_hilights_only = FALSE; xtext->un_hilight = FALSE; xtext->recycle = FALSE; xtext->dont_render = FALSE; xtext->dont_render2 = FALSE; gtk_xtext_scroll_adjustments (xtext, NULL, NULL); { static const GtkTargetEntry targets[] = { { "UTF8_STRING", 0, TARGET_UTF8_STRING }, { "STRING", 0, TARGET_STRING }, { "TEXT", 0, TARGET_TEXT }, { "COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT } }; static const gint n_targets = sizeof (targets) / sizeof (targets[0]); gtk_selection_add_targets (GTK_WIDGET (xtext), GDK_SELECTION_PRIMARY, targets, n_targets); } } static void gtk_xtext_adjustment_set (xtext_buffer *buf, int fire_signal) { GtkAdjustment *adj = buf->xtext->adj; if (buf->xtext->buffer == buf) { adj->lower = 0; adj->upper = buf->num_lines; if (adj->upper == 0) adj->upper = 1; adj->page_size = GTK_WIDGET (buf->xtext)->allocation.height / buf->xtext->fontsize; adj->page_increment = adj->page_size; if (adj->value > adj->upper - adj->page_size) { buf->scrollbar_down = TRUE; adj->value = adj->upper - adj->page_size; } if (adj->value < 0) adj->value = 0; if (fire_signal) gtk_adjustment_changed (adj); } } static gint gtk_xtext_adjustment_timeout (GtkXText * xtext) { gtk_xtext_render_page (xtext); xtext->io_tag = 0; return 0; } static void gtk_xtext_adjustment_changed (GtkAdjustment * adj, GtkXText * xtext) { if (!gtk_widget_get_realized (GTK_WIDGET (xtext))) return; if (xtext->buffer->old_value != xtext->adj->value) { if (xtext->adj->value >= xtext->adj->upper - xtext->adj->page_size) xtext->buffer->scrollbar_down = TRUE; else xtext->buffer->scrollbar_down = FALSE; if (xtext->adj->value + 1 == xtext->buffer->old_value || xtext->adj->value - 1 == xtext->buffer->old_value) /* clicked an arrow? */ { if (xtext->io_tag) { g_source_remove (xtext->io_tag); xtext->io_tag = 0; } gtk_xtext_render_page (xtext); } else { if (!xtext->io_tag) xtext->io_tag = g_timeout_add (REFRESH_TIMEOUT, (GSourceFunc) gtk_xtext_adjustment_timeout, xtext); } } xtext->buffer->old_value = adj->value; } GtkWidget * gtk_xtext_new (GdkColor palette[], int separator) { GtkXText *xtext; xtext = g_object_new (gtk_xtext_get_type (), NULL); xtext->separator = separator; xtext->wordwrap = TRUE; xtext->buffer = gtk_xtext_buffer_new (xtext); xtext->orig_buffer = xtext->buffer; gtk_widget_set_double_buffered (GTK_WIDGET (xtext), FALSE); gtk_xtext_set_palette (xtext, palette); return GTK_WIDGET (xtext); } static void gtk_xtext_destroy (GtkObject * object) { GtkXText *xtext = GTK_XTEXT (object); if (xtext->add_io_tag) { g_source_remove (xtext->add_io_tag); xtext->add_io_tag = 0; } if (xtext->scroll_tag) { g_source_remove (xtext->scroll_tag); xtext->scroll_tag = 0; } if (xtext->io_tag) { g_source_remove (xtext->io_tag); xtext->io_tag = 0; } if (xtext->pixmap) { g_object_unref (xtext->pixmap); xtext->pixmap = NULL; } if (xtext->font) { backend_font_close (xtext); xtext->font = NULL; } if (xtext->adj) { g_signal_handlers_disconnect_matched (G_OBJECT (xtext->adj), G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, xtext); /* gtk_signal_disconnect_by_data (G_OBJECT (xtext->adj), xtext);*/ g_object_unref (G_OBJECT (xtext->adj)); xtext->adj = NULL; } if (xtext->bgc) { g_object_unref (xtext->bgc); xtext->bgc = NULL; } if (xtext->fgc) { g_object_unref (xtext->fgc); xtext->fgc = NULL; } if (xtext->light_gc) { g_object_unref (xtext->light_gc); xtext->light_gc = NULL; } if (xtext->dark_gc) { g_object_unref (xtext->dark_gc); xtext->dark_gc = NULL; } if (xtext->thin_gc) { g_object_unref (xtext->thin_gc); xtext->thin_gc = NULL; } if (xtext->marker_gc) { g_object_unref (xtext->marker_gc); xtext->marker_gc = NULL; } if (xtext->hand_cursor) { gdk_cursor_unref (xtext->hand_cursor); xtext->hand_cursor = NULL; } if (xtext->resize_cursor) { gdk_cursor_unref (xtext->resize_cursor); xtext->resize_cursor = NULL; } if (xtext->orig_buffer) { gtk_xtext_buffer_free (xtext->orig_buffer); xtext->orig_buffer = NULL; } if (GTK_OBJECT_CLASS (parent_class)->destroy) (*GTK_OBJECT_CLASS (parent_class)->destroy) (object); } static void gtk_xtext_unrealize (GtkWidget * widget) { backend_deinit (GTK_XTEXT (widget)); /* if there are still events in the queue, this'll avoid segfault */ gdk_window_set_user_data (widget->window, NULL); if (parent_class->unrealize) (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget); } static void gtk_xtext_realize (GtkWidget * widget) { GtkXText *xtext; GdkWindowAttr attributes; GdkGCValues val; GdkColor col; GdkColormap *cmap; gtk_widget_set_realized (widget, TRUE); xtext = GTK_XTEXT (widget); attributes.x = widget->allocation.x; attributes.y = widget->allocation.y; attributes.width = widget->allocation.width; attributes.height = widget->allocation.height; attributes.wclass = GDK_INPUT_OUTPUT; attributes.window_type = GDK_WINDOW_CHILD; attributes.event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK | GDK_LEAVE_NOTIFY_MASK; cmap = gtk_widget_get_colormap (widget); attributes.colormap = cmap; attributes.visual = gtk_widget_get_visual (widget); widget->window = gdk_window_new (widget->parent->window, &attributes, GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP); gdk_window_set_user_data (widget->window, widget); xtext->depth = gdk_window_get_visual (widget->window)->depth; val.subwindow_mode = GDK_INCLUDE_INFERIORS; val.graphics_exposures = 0; xtext->bgc = gdk_gc_new_with_values (widget->window, &val, GDK_GC_EXPOSURES | GDK_GC_SUBWINDOW); xtext->fgc = gdk_gc_new_with_values (widget->window, &val, GDK_GC_EXPOSURES | GDK_GC_SUBWINDOW); xtext->light_gc = gdk_gc_new_with_values (widget->window, &val, GDK_GC_EXPOSURES | GDK_GC_SUBWINDOW); xtext->dark_gc = gdk_gc_new_with_values (widget->window, &val, GDK_GC_EXPOSURES | GDK_GC_SUBWINDOW); xtext->thin_gc = gdk_gc_new_with_values (widget->window, &val, GDK_GC_EXPOSURES | GDK_GC_SUBWINDOW); xtext->marker_gc = gdk_gc_new_with_values (widget->window, &val, GDK_GC_EXPOSURES | GDK_GC_SUBWINDOW); /* for the separator bar (light) */ col.red = 0xffff; col.green = 0xffff; col.blue = 0xffff; gdk_colormap_alloc_color (cmap, &col, FALSE, TRUE); gdk_gc_set_foreground (xtext->light_gc, &col); /* for the separator bar (dark) */ col.red = 0x1111; col.green = 0x1111; col.blue = 0x1111; gdk_colormap_alloc_color (cmap, &col, FALSE, TRUE); gdk_gc_set_foreground (xtext->dark_gc, &col); /* for the separator bar (thinline) */ col.red = 0x8e38; col.green = 0x8e38; col.blue = 0x9f38; gdk_colormap_alloc_color (cmap, &col, FALSE, TRUE); gdk_gc_set_foreground (xtext->thin_gc, &col); /* for the marker bar (marker) */ gdk_gc_set_foreground (xtext->marker_gc, &xtext->palette[XTEXT_MARKER]); xtext_set_fg (xtext, xtext->fgc, XTEXT_FG); xtext_set_bg (xtext, xtext->fgc, XTEXT_BG); xtext_set_fg (xtext, xtext->bgc, XTEXT_BG); /* draw directly to window */ xtext->draw_buf = widget->window; if (xtext->pixmap) { gdk_gc_set_tile (xtext->bgc, xtext->pixmap); gdk_gc_set_ts_origin (xtext->bgc, 0, 0); xtext->ts_x = xtext->ts_y = 0; gdk_gc_set_fill (xtext->bgc, GDK_TILED); } xtext->hand_cursor = gdk_cursor_new_for_display (gdk_window_get_display (widget->window), GDK_HAND1); xtext->resize_cursor = gdk_cursor_new_for_display (gdk_window_get_display (widget->window), GDK_LEFT_SIDE); gdk_window_set_back_pixmap (widget->window, NULL, FALSE); widget->style = gtk_style_attach (widget->style, widget->window); backend_init (xtext); } static void gtk_xtext_size_request (GtkWidget * widget, GtkRequisition * requisition) { requisition->width = 200; requisition->height = 90; } static void gtk_xtext_size_allocate (GtkWidget * widget, GtkAllocation * allocation) { GtkXText *xtext = GTK_XTEXT (widget); int height_only = FALSE; if (allocation->width == xtext->buffer->window_width) height_only = TRUE; widget->allocation = *allocation; if (gtk_widget_get_realized (GTK_WIDGET(widget))) { xtext->buffer->window_width = allocation->width; xtext->buffer->window_height = allocation->height; gdk_window_move_resize (widget->window, allocation->x, allocation->y, allocation->width, allocation->height); dontscroll (xtext->buffer); /* force scrolling off */ if (!height_only) gtk_xtext_calc_lines (xtext->buffer, FALSE); else { xtext->buffer->pagetop_ent = NULL; gtk_xtext_adjustment_set (xtext->buffer, FALSE); } if (xtext->buffer->scrollbar_down) gtk_adjustment_set_value (xtext->adj, xtext->adj->upper - xtext->adj->page_size); } } static int gtk_xtext_selection_clear (xtext_buffer *buf) { textentry *ent; int ret = 0; ent = buf->last_ent_start; while (ent) { if (ent->mark_start != -1) ret = 1; ent->mark_start = -1; ent->mark_end = -1; if (ent == buf->last_ent_end) break; ent = ent->next; } return ret; } static int find_x (GtkXText *xtext, textentry *ent, int x, int subline, int indent) { int xx = indent; int suboff; GSList *list; GSList *hid = NULL; offlen_t *meta; int off, len, wid, mbl, mbw; /* Skip to the first chunk of stuff for the subline */ list = ent->slp; if (subline > 0) { suboff = GPOINTER_TO_INT (g_slist_nth_data (ent->sublines, subline - 1)); for (list = ent->slp; list; list = g_slist_next (list)) { meta = list->data; if (meta->off + meta->len > suboff) break; } } else { suboff = 0; list = ent->slp; } /* Step to the first character of the subline */ meta = list->data; off = meta->off; len = meta->len; if (meta->emph & EMPH_HIDDEN) hid = list; while (len > 0) { if (off >= suboff) break; mbl = charlen (ent->str + off); len -= mbl; off += mbl; } if (len < 0) return ent->str_len; /* Bad char -- return max offset. */ /* Step through characters to find the one at the x position */ wid = x - indent; len = meta->len - (off - meta->off); while (wid > 0) { mbl = charlen (ent->str + off); mbw = backend_get_text_width_emph (xtext, ent->str + off, mbl, meta->emph); wid -= mbw; xx += mbw; if (xx >= x) return off; len -= mbl; off += mbl; if (len <= 0) { if (meta->emph & EMPH_HIDDEN) hid = list; list = g_slist_next (list); if (list == NULL) return ent->str_len; meta = list->data; off = meta->off; len = meta->len; } } /* If previous chunk exists and is marked hidden, regard it as unhidden */ if (hid && list && hid->next == list) { meta = hid->data; off = meta->off; } /* Return offset of character at x within subline */ return off; } static int gtk_xtext_find_x (GtkXText * xtext, int x, textentry * ent, int subline, int line, int *out_of_bounds) { int indent; unsigned char *str; if (subline < 1) indent = ent->indent; else indent = xtext->buffer->indent; if (line > xtext->adj->page_size || line < 0) { *out_of_bounds = TRUE; return 0; } str = ent->str + gtk_xtext_find_subline (xtext, ent, subline); if (str >= ent->str + ent->str_len) return 0; /* Let user select left a few pixels to grab hidden text e.g. '<' */ if (x < indent - xtext->space_width) { *out_of_bounds = 1; return (str - ent->str); } *out_of_bounds = 0; return find_x (xtext, ent, x, subline, indent); } static textentry * gtk_xtext_find_char (GtkXText * xtext, int x, int y, int *off, int *out_of_bounds, int *ret_subline) { textentry *ent; int line; int subline; /* Adjust y value for negative rounding, double to int */ if (y < 0) y -= xtext->fontsize; line = (y + xtext->pixel_offset) / xtext->fontsize; ent = gtk_xtext_nth (xtext, line + (int)xtext->adj->value, &subline); if (!ent) return 0; if (off) *off = gtk_xtext_find_x (xtext, x, ent, subline, line, out_of_bounds); if (ret_subline) *ret_subline = subline; return ent; } static void gtk_xtext_draw_sep (GtkXText * xtext, int y) { int x, height; GdkGC *light, *dark; if (y == -1) { y = 0; height = GTK_WIDGET (xtext)->allocation.height; } else { height = xtext->fontsize; } /* draw the separator line */ if (xtext->separator && xtext->buffer->indent) { light = xtext->light_gc; dark = xtext->dark_gc; x = xtext->buffer->indent - ((xtext->space_width + 1) / 2); if (x < 1) return; if (xtext->thinline) { if (xtext->moving_separator) gdk_draw_line (xtext->draw_buf, light, x, y, x, y + height); else gdk_draw_line (xtext->draw_buf, xtext->thin_gc, x, y, x, y + height); } else { if (xtext->moving_separator) { gdk_draw_line (xtext->draw_buf, light, x - 1, y, x - 1, y + height); gdk_draw_line (xtext->draw_buf, dark, x, y, x, y + height); } else { gdk_draw_line (xtext->draw_buf, dark, x - 1, y, x - 1, y + height); gdk_draw_line (xtext->draw_buf, light, x, y, x, y + height); } } } } static void gtk_xtext_draw_marker (GtkXText * xtext, textentry * ent, int y) { int x, width, render_y; if (!xtext->marker) return; if (xtext->buffer->marker_pos == ent) { render_y = y + xtext->font->descent; } else if (xtext->buffer->marker_pos == ent->next && ent->next != NULL) { render_y = y + xtext->font->descent + xtext->fontsize * g_slist_length (ent->sublines); } else return; x = 0; width = GTK_WIDGET (xtext)->allocation.width; gdk_draw_line (xtext->draw_buf, xtext->marker_gc, x, render_y, x + width, render_y); if (gtk_window_has_toplevel_focus (GTK_WINDOW (gtk_widget_get_toplevel (GTK_WIDGET (xtext))))) { xtext->buffer->marker_seen = TRUE; } } static void gtk_xtext_paint (GtkWidget *widget, GdkRectangle *area) { GtkXText *xtext = GTK_XTEXT (widget); textentry *ent_start, *ent_end; int x, y; if (area->x == 0 && area->y == 0 && area->height == widget->allocation.height && area->width == widget->allocation.width) { dontscroll (xtext->buffer); /* force scrolling off */ gtk_xtext_render_page (xtext); return; } ent_start = gtk_xtext_find_char (xtext, area->x, area->y, NULL, NULL, NULL); if (!ent_start) { xtext_draw_bg (xtext, area->x, area->y, area->width, area->height); goto xit; } ent_end = gtk_xtext_find_char (xtext, area->x + area->width, area->y + area->height, NULL, NULL, NULL); if (!ent_end) ent_end = xtext->buffer->text_last; /* can't set a clip here, because fgc/bgc are used to draw the DB too */ /* backend_set_clip (xtext, area);*/ xtext->clip_x = area->x; xtext->clip_x2 = area->x + area->width; xtext->clip_y = area->y; xtext->clip_y2 = area->y + area->height; /* y is the last pixel y location it rendered text at */ y = gtk_xtext_render_ents (xtext, ent_start, ent_end); if (y && y < widget->allocation.height && !ent_end->next) { GdkRectangle rect; rect.x = 0; rect.y = y; rect.width = widget->allocation.width; rect.height = widget->allocation.height - y; /* fill any space below the last line that also intersects with the exposure rectangle */ if (gdk_rectangle_intersect (area, &rect, &rect)) { xtext_draw_bg (xtext, rect.x, rect.y, rect.width, rect.height); } } /*backend_clear_clip (xtext);*/ xtext->clip_x = 0; xtext->clip_x2 = 1000000; xtext->clip_y = 0; xtext->clip_y2 = 1000000; xit: x = xtext->buffer->indent - ((xtext->space_width + 1) / 2); if (area->x <= x) gtk_xtext_draw_sep (xtext, -1); } static gboolean gtk_xtext_expose (GtkWidget * widget, GdkEventExpose * event) { gtk_xtext_paint (widget, &event->area); return FALSE; } /* render a selection that has extended or contracted upward */ static void gtk_xtext_selection_up (GtkXText *xtext, textentry *start, textentry *end, int start_offset) { /* render all the complete lines */ if (start->next == end) gtk_xtext_render_ents (xtext, end, NULL); else gtk_xtext_render_ents (xtext, start->next, end); /* now the incomplete upper line */ if (start == xtext->buffer->last_ent_start) xtext->jump_in_offset = xtext->buffer->last_offset_start; else xtext->jump_in_offset = start_offset; gtk_xtext_render_ents (xtext, start, NULL); xtext->jump_in_offset = 0; } /* render a selection that has extended or contracted downward */ static void gtk_xtext_selection_down (GtkXText *xtext, textentry *start, textentry *end, int end_offset) { /* render all the complete lines */ if (end->prev == start) gtk_xtext_render_ents (xtext, start, NULL); else gtk_xtext_render_ents (xtext, start, end->prev); /* now the incomplete bottom line */ if (end == xtext->buffer->last_ent_end) xtext->jump_out_offset = xtext->buffer->last_offset_end; else xtext->jump_out_offset = end_offset; gtk_xtext_render_ents (xtext, end, NULL); xtext->jump_out_offset = 0; } static void gtk_xtext_selection_render (GtkXText *xtext, textentry *start_ent, textentry *end_ent) { textentry *ent; int start_offset = start_ent->mark_start; int end_offset = end_ent->mark_end; int start, end; xtext->skip_border_fills = TRUE; xtext->skip_stamp = TRUE; /* force an optimized render if there was no previous selection */ if (xtext->buffer->last_ent_start == NULL && start_ent == end_ent) { xtext->buffer->last_offset_start = start_offset; xtext->buffer->last_offset_end = end_offset; goto lamejump; } /* mark changed within 1 ent only? */ if (xtext->buffer->last_ent_start == start_ent && xtext->buffer->last_ent_end == end_ent) { /* when only 1 end of the selection is changed, we can really save on rendering */ if (xtext->buffer->last_offset_start == start_offset || xtext->buffer->last_offset_end == end_offset) { lamejump: ent = end_ent; /* figure out where to start and end the rendering */ if (end_offset > xtext->buffer->last_offset_end) { end = end_offset; start = xtext->buffer->last_offset_end; } else if (end_offset < xtext->buffer->last_offset_end) { end = xtext->buffer->last_offset_end; start = end_offset; } else if (start_offset < xtext->buffer->last_offset_start) { end = xtext->buffer->last_offset_start; start = start_offset; ent = start_ent; } else if (start_offset > xtext->buffer->last_offset_start) { end = start_offset; start = xtext->buffer->last_offset_start; ent = start_ent; } else { /* WORD selects end up here */ end = end_offset; start = start_offset; } } else { /* LINE selects end up here */ /* so which ent actually changed? */ ent = start_ent; if (xtext->buffer->last_offset_start == start_offset) ent = end_ent; end = MAX (xtext->buffer->last_offset_end, end_offset); start = MIN (xtext->buffer->last_offset_start, start_offset); } xtext->jump_out_offset = end; xtext->jump_in_offset = start; gtk_xtext_render_ents (xtext, ent, NULL); xtext->jump_out_offset = 0; xtext->jump_in_offset = 0; } /* marking downward? */ else if (xtext->buffer->last_ent_start == start_ent && xtext->buffer->last_offset_start == start_offset) { /* find the range that covers both old and new selection */ ent = start_ent; while (ent) { if (ent == xtext->buffer->last_ent_end) { gtk_xtext_selection_down (xtext, ent, end_ent, end_offset); /*gtk_xtext_render_ents (xtext, ent, end_ent);*/ break; } if (ent == end_ent) { gtk_xtext_selection_down (xtext, ent, xtext->buffer->last_ent_end, end_offset); /*gtk_xtext_render_ents (xtext, ent, xtext->buffer->last_ent_end);*/ break; } ent = ent->next; } } /* marking upward? */ else if (xtext->buffer->last_ent_end == end_ent && xtext->buffer->last_offset_end == end_offset) { ent = end_ent; while (ent) { if (ent == start_ent) { gtk_xtext_selection_up (xtext, xtext->buffer->last_ent_start, ent, start_offset); /*gtk_xtext_render_ents (xtext, xtext->buffer->last_ent_start, ent);*/ break; } if (ent == xtext->buffer->last_ent_start) { gtk_xtext_selection_up (xtext, start_ent, ent, start_offset); /*gtk_xtext_render_ents (xtext, start_ent, ent);*/ break; } ent = ent->prev; } } else /* cross-over mark (stretched or shrunk at both ends) */ { /* unrender the old mark */ gtk_xtext_render_ents (xtext, xtext->buffer->last_ent_start, xtext->buffer->last_ent_end); /* now render the new mark, but skip overlaps */ if (start_ent == xtext->buffer->last_ent_start) { /* if the new mark is a sub-set of the old, do nothing */ if (start_ent != end_ent) gtk_xtext_render_ents (xtext, start_ent->next, end_ent); } else if (end_ent == xtext->buffer->last_ent_end) { /* if the new mark is a sub-set of the old, do nothing */ if (start_ent != end_ent) gtk_xtext_render_ents (xtext, start_ent, end_ent->prev); } else gtk_xtext_render_ents (xtext, start_ent, end_ent); } xtext->buffer->last_ent_start = start_ent; xtext->buffer->last_ent_end = end_ent; xtext->buffer->last_offset_start = start_offset; xtext->buffer->last_offset_end = end_offset; xtext->skip_border_fills = FALSE; xtext->skip_stamp = FALSE; } static void gtk_xtext_selection_draw (GtkXText * xtext, GdkEventMotion * event, gboolean render) { textentry *ent; textentry *ent_end; textentry *ent_start; int offset_start; int offset_end; int subline_start; int subline_end; int oob; int marking_up = FALSE; int len_start; int len_end; ent_start = gtk_xtext_find_char (xtext, xtext->select_start_x, xtext->select_start_y, &offset_start, &oob, &subline_start); ent_end = gtk_xtext_find_char (xtext, xtext->select_end_x, xtext->select_end_y, &offset_end, &oob, &subline_end); if ((!ent_start || !ent_end) && !xtext->buffer->text_last && xtext->adj->value != xtext->buffer->old_value) { gtk_xtext_render_page (xtext); return; } if (!ent_start) { ent_start = xtext->buffer->text_last; offset_start = ent_start->str_len; } if (!ent_end) { ent_end = xtext->buffer->text_last; offset_end = ent_end->str_len; } if ((ent_start != ent_end && xtext->select_start_y > xtext->select_end_y) || /* different entries */ (ent_start == ent_end && subline_start > subline_end) || /* different lines */ (ent_start == ent_end && subline_start == subline_end && xtext->select_start_x > xtext->select_end_x)) /* marking to the left */ { marking_up = TRUE; } /* word selection */ if (xtext->word_select) { /* a word selection cannot be started if the cursor is out of bounds in gtk_xtext_button_press */ gtk_xtext_get_word (xtext, xtext->select_start_x, xtext->select_start_y, NULL, &offset_start, &len_start, NULL); /* in case the cursor is out of bounds we keep offset_end from gtk_xtext_find_char and fix the length */ if (gtk_xtext_get_word (xtext, xtext->select_end_x, xtext->select_end_y, NULL, &offset_end, &len_end, NULL) == NULL) len_end = offset_end == ent_end->str_len? 0: -1; /* -1 for the space, 0 if at the end */ if (!marking_up) offset_end += len_end; else offset_start += len_start; } /* line/ent selection */ else if (xtext->line_select) { offset_start = marking_up? ent_start->str_len: 0; offset_end = marking_up? 0: ent_end->str_len; } if (marking_up) { int temp; /* ensure ent_start is above ent_end */ if (ent_start != ent_end) { ent = ent_start; ent_start = ent_end; ent_end = ent; } /* switch offsets as well */ temp = offset_start; offset_start = offset_end; offset_end = temp; } /* set all the old mark_ fields to -1 */ gtk_xtext_selection_clear (xtext->buffer); /* set the default values */ ent_start->mark_end = ent_start->str_len; ent_end->mark_start = 0; /* set the calculated values (this overwrites the default values if we're on the same ent) */ ent_start->mark_start = offset_start; ent_end->mark_end = offset_end; /* set all the mark_ fields of the ents within the selection */ if (ent_start != ent_end) { ent = ent_start->next; while (ent && ent != ent_end) { ent->mark_start = 0; ent->mark_end = ent->str_len; ent = ent->next; } } if (render) gtk_xtext_selection_render (xtext, ent_start, ent_end); } static int gtk_xtext_timeout_ms (GtkXText *xtext, int pixes) { int apixes = abs(pixes); if (apixes < 6) return 100; if (apixes < 12) return 50; if (apixes < 20) return 20; return 10; } static gint gtk_xtext_scrolldown_timeout (GtkXText * xtext) { int p_y, win_height; xtext_buffer *buf = xtext->buffer; GtkAdjustment *adj = xtext->adj; gdk_window_get_pointer (GTK_WIDGET (xtext)->window, 0, &p_y, 0); win_height = gdk_window_get_height (gtk_widget_get_window (GTK_WIDGET (xtext))); if (buf->last_ent_end == NULL || /* If context has changed OR */ buf->pagetop_ent == NULL || /* pagetop_ent is reset OR */ p_y <= win_height || /* pointer not below bottom margin OR */ adj->value >= adj->upper - adj->page_size) /* we're scrolled to bottom */ { xtext->scroll_tag = 0; return 0; } xtext->select_start_y -= xtext->fontsize; xtext->select_start_adj++; adj->value++; gtk_adjustment_value_changed (adj); gtk_xtext_selection_draw (xtext, NULL, TRUE); gtk_xtext_render_ents (xtext, buf->pagetop_ent->next, buf->last_ent_end); xtext->scroll_tag = g_timeout_add (gtk_xtext_timeout_ms (xtext, p_y - win_height), (GSourceFunc) gtk_xtext_scrolldown_timeout, xtext); return 0; } static gint gtk_xtext_scrollup_timeout (GtkXText * xtext) { int p_y; xtext_buffer *buf = xtext->buffer; GtkAdjustment *adj = xtext->adj; int delta_y; gdk_window_get_pointer (GTK_WIDGET (xtext)->window, 0, &p_y, 0); if (buf->last_ent_start == NULL || /* If context has changed OR */ buf->pagetop_ent == NULL || /* pagetop_ent is reset OR */ p_y >= 0 || /* not above top margin OR */ adj->value == 0) /* we're scrolled to the top */ { xtext->scroll_tag = 0; return 0; } if (adj->value < 0) { delta_y = adj->value * xtext->fontsize; adj->value = 0; } else { delta_y = xtext->fontsize; adj->value--; } xtext->select_start_y += delta_y; xtext->select_start_adj = adj->value; gtk_adjustment_value_changed (adj); gtk_xtext_selection_draw (xtext, NULL, TRUE); gtk_xtext_render_ents (xtext, buf->pagetop_ent->prev, buf->last_ent_end); xtext->scroll_tag = g_timeout_add (gtk_xtext_timeout_ms (xtext, p_y), (GSourceFunc) gtk_xtext_scrollup_timeout, xtext); return 0; } static void gtk_xtext_selection_update (GtkXText * xtext, GdkEventMotion * event, int p_y, gboolean render) { int win_height; int moved; if (xtext->scroll_tag) { return; } win_height = gdk_window_get_height (gtk_widget_get_window (GTK_WIDGET (xtext))); /* selecting past top of window, scroll up! */ if (p_y < 0 && xtext->adj->value >= 0) { gtk_xtext_scrollup_timeout (xtext); } /* selecting past bottom of window, scroll down! */ else if (p_y > win_height && xtext->adj->value < (xtext->adj->upper - xtext->adj->page_size)) { gtk_xtext_scrolldown_timeout (xtext); } else { moved = (int)xtext->adj->value - xtext->select_start_adj; xtext->select_start_y -= (moved * xtext->fontsize); xtext->select_start_adj = xtext->adj->value; gtk_xtext_selection_draw (xtext, event, render); } } static char * gtk_xtext_get_word (GtkXText * xtext, int x, int y, textentry ** ret_ent, int *ret_off, int *ret_len, GSList **slp) { textentry *ent; int offset; unsigned char *word; unsigned char *last, *end; int len; int out_of_bounds = 0; int len_to_offset = 0; ent = gtk_xtext_find_char (xtext, x, y, &offset, &out_of_bounds, NULL); if (ent == NULL || out_of_bounds || offset < 0 || offset >= ent->str_len) return NULL; word = ent->str + offset; while ((word = g_utf8_find_prev_char (ent->str, word))) { if (is_del (*word)) { word++; len_to_offset--; break; } len_to_offset += charlen (word); } if (!word) word = ent->str; /* remove color characters from the length */ gtk_xtext_strip_color (word, len_to_offset, xtext->scratch_buffer, &len_to_offset, NULL, FALSE); last = word; end = ent->str + ent->str_len; len = 0; do { if (is_del (*last)) break; len += charlen (last); last = g_utf8_find_next_char (last, end); } while (last); if (len > 0 && word[len-1]=='.') len--; if (ret_ent) *ret_ent = ent; if (ret_off) *ret_off = word - ent->str; if (ret_len) *ret_len = len; /* Length before stripping */ word = gtk_xtext_strip_color (word, len, xtext->scratch_buffer, NULL, slp, FALSE); /* avoid turning the cursor into a hand for non-url part of the word */ if (xtext->urlcheck_function && xtext->urlcheck_function (GTK_WIDGET (xtext), word)) { int start, end; url_last (&start, &end); /* make sure we're not before the start of the match */ if (len_to_offset < start) return 0; /* and not after it */ if (len_to_offset - start >= end - start) return 0; } return word; } static void gtk_xtext_unrender_hilight (GtkXText *xtext) { xtext->render_hilights_only = TRUE; xtext->skip_border_fills = TRUE; xtext->skip_stamp = TRUE; xtext->un_hilight = TRUE; gtk_xtext_render_ents (xtext, xtext->hilight_ent, NULL); xtext->render_hilights_only = FALSE; xtext->skip_border_fills = FALSE; xtext->skip_stamp = FALSE; xtext->un_hilight = FALSE; } static gboolean gtk_xtext_leave_notify (GtkWidget * widget, GdkEventCrossing * event) { GtkXText *xtext = GTK_XTEXT (widget); if (xtext->cursor_hand) { gtk_xtext_unrender_hilight (xtext); xtext->hilight_start = -1; xtext->hilight_end = -1; xtext->cursor_hand = FALSE; gdk_window_set_cursor (widget->window, 0); xtext->hilight_ent = NULL; } if (xtext->cursor_resize) { gtk_xtext_unrender_hilight (xtext); xtext->hilight_start = -1; xtext->hilight_end = -1; xtext->cursor_resize = FALSE; gdk_window_set_cursor (widget->window, 0); xtext->hilight_ent = NULL; } return FALSE; } /* check if we should mark time stamps, and if a redraw is needed */ static gboolean gtk_xtext_check_mark_stamp (GtkXText *xtext, GdkModifierType mask) { gboolean redraw = FALSE; if ((mask & STATE_SHIFT || prefs.hex_text_autocopy_stamp) && (!prefs.hex_stamp_text || prefs.hex_text_indent)) { if (!xtext->mark_stamp) { redraw = TRUE; /* must redraw all */ xtext->mark_stamp = TRUE; } } else { if (xtext->mark_stamp) { redraw = TRUE; /* must redraw all */ xtext->mark_stamp = FALSE; } } return redraw; } static int gtk_xtext_get_word_adjust (GtkXText *xtext, int x, int y, textentry **word_ent, int *offset, int *len) { GSList *slp = NULL; unsigned char *word; int word_type = 0; word = gtk_xtext_get_word (xtext, x, y, word_ent, offset, len, &slp); if (word) { int laststart, lastend; word_type = xtext->urlcheck_function (GTK_WIDGET (xtext), word); if (word_type > 0) { if (url_last (&laststart, &lastend)) { int cumlen, startadj = 0, endadj = 0; offlen_t *meta; GSList *sl; for (sl = slp, cumlen = 0; sl; sl = g_slist_next (sl)) { meta = sl->data; startadj = meta->off - cumlen; cumlen += meta->len; if (laststart < cumlen) break; } for (sl = slp, cumlen = 0; sl; sl = g_slist_next (sl)) { meta = sl->data; endadj = meta->off - cumlen; cumlen += meta->len; if (lastend < cumlen) break; } laststart += startadj; *offset += laststart; *len = lastend + endadj - laststart; } } } g_slist_free_full (slp, free); return word_type; } static gboolean gtk_xtext_motion_notify (GtkWidget * widget, GdkEventMotion * event) { GtkXText *xtext = GTK_XTEXT (widget); GdkModifierType mask; int redraw, tmp, x, y, offset, len, line_x; textentry *word_ent; int word_type; gdk_window_get_pointer (widget->window, &x, &y, &mask); if (xtext->moving_separator) { if (x < (3 * widget->allocation.width) / 5 && x > 15) { tmp = xtext->buffer->indent; xtext->buffer->indent = x; gtk_xtext_fix_indent (xtext->buffer); if (tmp != xtext->buffer->indent) { gtk_xtext_recalc_widths (xtext->buffer, FALSE); if (xtext->buffer->scrollbar_down) gtk_adjustment_set_value (xtext->adj, xtext->adj->upper - xtext->adj->page_size); if (!xtext->io_tag) xtext->io_tag = g_timeout_add (REFRESH_TIMEOUT, (GSourceFunc) gtk_xtext_adjustment_timeout, xtext); } } return FALSE; } if (xtext->button_down) { redraw = gtk_xtext_check_mark_stamp (xtext, mask); gtk_grab_add (widget); /*gdk_pointer_grab (widget->window, TRUE, GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_MOTION_MASK, NULL, NULL, 0);*/ xtext->select_end_x = x; xtext->select_end_y = y; gtk_xtext_selection_update (xtext, event, y, !redraw); xtext->hilighting = TRUE; /* user has pressed or released SHIFT, must redraw entire selection */ if (redraw) { xtext->force_stamp = TRUE; gtk_xtext_render_ents (xtext, xtext->buffer->last_ent_start, xtext->buffer->last_ent_end); xtext->force_stamp = FALSE; } return FALSE; } if (xtext->separator && xtext->buffer->indent) { line_x = xtext->buffer->indent - ((xtext->space_width + 1) / 2); if (line_x == x || line_x == x + 1 || line_x == x - 1) { if (!xtext->cursor_resize) { gdk_window_set_cursor (GTK_WIDGET (xtext)->window, xtext->resize_cursor); xtext->cursor_hand = FALSE; xtext->cursor_resize = TRUE; } return FALSE; } } if (xtext->urlcheck_function == NULL) return FALSE; word_type = gtk_xtext_get_word_adjust (xtext, x, y, &word_ent, &offset, &len); if (word_type > 0) { if (!xtext->cursor_hand || xtext->hilight_ent != word_ent || xtext->hilight_start != offset || xtext->hilight_end != offset + len) { if (!xtext->cursor_hand) { gdk_window_set_cursor (GTK_WIDGET (xtext)->window, xtext->hand_cursor); xtext->cursor_hand = TRUE; xtext->cursor_resize = FALSE; } /* un-render the old hilight */ if (xtext->hilight_ent) gtk_xtext_unrender_hilight (xtext); xtext->hilight_ent = word_ent; xtext->hilight_start = offset; xtext->hilight_end = offset + len; xtext->skip_border_fills = TRUE; xtext->render_hilights_only = TRUE; xtext->skip_stamp = TRUE; gtk_xtext_render_ents (xtext, word_ent, NULL); xtext->skip_border_fills = FALSE; xtext->render_hilights_only = FALSE; xtext->skip_stamp = FALSE; } return FALSE; } gtk_xtext_leave_notify (widget, NULL); return FALSE; } static void gtk_xtext_set_clip_owner (GtkWidget * xtext, GdkEventButton * event) { char *str; int len; if (GTK_XTEXT (xtext)->selection_buffer && GTK_XTEXT (xtext)->selection_buffer != GTK_XTEXT (xtext)->buffer) gtk_xtext_selection_clear (GTK_XTEXT (xtext)->selection_buffer); GTK_XTEXT (xtext)->selection_buffer = GTK_XTEXT (xtext)->buffer; str = gtk_xtext_selection_get_text (GTK_XTEXT (xtext), &len); if (str) { if (str[0]) { gtk_clipboard_set_text (gtk_widget_get_clipboard (xtext, GDK_SELECTION_CLIPBOARD), str, len); gtk_selection_owner_set (xtext, GDK_SELECTION_PRIMARY, event ? event->time : GDK_CURRENT_TIME); gtk_selection_owner_set (xtext, GDK_SELECTION_SECONDARY, event ? event->time : GDK_CURRENT_TIME); } free (str); } } void gtk_xtext_copy_selection (GtkXText *xtext) { gtk_xtext_set_clip_owner (GTK_WIDGET (xtext), NULL); } static void gtk_xtext_unselect (GtkXText *xtext) { xtext_buffer *buf = xtext->buffer; xtext->skip_border_fills = TRUE; xtext->skip_stamp = TRUE; xtext->jump_in_offset = buf->last_ent_start->mark_start; /* just a single ent was marked? */ if (buf->last_ent_start == buf->last_ent_end) { xtext->jump_out_offset = buf->last_ent_start->mark_end; buf->last_ent_end = NULL; } gtk_xtext_selection_clear (xtext->buffer); /* FIXME: use jump_out on multi-line selects too! */ xtext->jump_in_offset = 0; xtext->jump_out_offset = 0; gtk_xtext_render_ents (xtext, buf->last_ent_start, buf->last_ent_end); xtext->skip_border_fills = FALSE; xtext->skip_stamp = FALSE; xtext->buffer->last_ent_start = NULL; xtext->buffer->last_ent_end = NULL; } static gboolean gtk_xtext_button_release (GtkWidget * widget, GdkEventButton * event) { GtkXText *xtext = GTK_XTEXT (widget); unsigned char *word; int old; if (xtext->moving_separator) { xtext->moving_separator = FALSE; old = xtext->buffer->indent; if (event->x < (4 * widget->allocation.width) / 5 && event->x > 15) xtext->buffer->indent = event->x; gtk_xtext_fix_indent (xtext->buffer); if (xtext->buffer->indent != old) { gtk_xtext_recalc_widths (xtext->buffer, FALSE); gtk_xtext_adjustment_set (xtext->buffer, TRUE); gtk_xtext_render_page (xtext); } else gtk_xtext_draw_sep (xtext, -1); return FALSE; } if (event->button == 1) { xtext->button_down = FALSE; if (xtext->scroll_tag) { g_source_remove (xtext->scroll_tag); xtext->scroll_tag = 0; } gtk_grab_remove (widget); /*gdk_pointer_ungrab (0);*/ /* got a new selection? */ if (xtext->buffer->last_ent_start) { xtext->color_paste = FALSE; if (event->state & STATE_CTRL || prefs.hex_text_autocopy_color) xtext->color_paste = TRUE; if (prefs.hex_text_autocopy_text) { gtk_xtext_set_clip_owner (GTK_WIDGET (xtext), event); } } if (xtext->word_select || xtext->line_select) { xtext->word_select = FALSE; xtext->line_select = FALSE; return FALSE; } if (xtext->select_start_x == event->x && xtext->select_start_y == event->y && xtext->buffer->last_ent_start) { gtk_xtext_unselect (xtext); xtext->mark_stamp = FALSE; return FALSE; } if (!xtext->hilighting) { word = gtk_xtext_get_word (xtext, event->x, event->y, 0, 0, 0, 0); g_signal_emit (G_OBJECT (xtext), xtext_signals[WORD_CLICK], 0, word ? word : NULL, event); } else { xtext->hilighting = FALSE; } } return FALSE; } static gboolean gtk_xtext_button_press (GtkWidget * widget, GdkEventButton * event) { GtkXText *xtext = GTK_XTEXT (widget); GdkModifierType mask; textentry *ent; unsigned char *word; int line_x, x, y, offset, len; gdk_window_get_pointer (widget->window, &x, &y, &mask); if (event->button == 3 || event->button == 2) /* right/middle click */ { word = gtk_xtext_get_word (xtext, x, y, 0, 0, 0, 0); if (word) { g_signal_emit (G_OBJECT (xtext), xtext_signals[WORD_CLICK], 0, word, event); } else g_signal_emit (G_OBJECT (xtext), xtext_signals[WORD_CLICK], 0, "", event); return FALSE; } if (event->button != 1) /* we only want left button */ return FALSE; if (event->type == GDK_2BUTTON_PRESS) /* WORD select */ { gtk_xtext_check_mark_stamp (xtext, mask); if (gtk_xtext_get_word (xtext, x, y, &ent, &offset, &len, 0)) { if (len == 0) return FALSE; gtk_xtext_selection_clear (xtext->buffer); ent->mark_start = offset; ent->mark_end = offset + len; gtk_xtext_selection_render (xtext, ent, ent); xtext->word_select = TRUE; } return FALSE; } if (event->type == GDK_3BUTTON_PRESS) /* LINE select */ { gtk_xtext_check_mark_stamp (xtext, mask); if (gtk_xtext_get_word (xtext, x, y, &ent, 0, 0, 0)) { gtk_xtext_selection_clear (xtext->buffer); ent->mark_start = 0; ent->mark_end = ent->str_len; gtk_xtext_selection_render (xtext, ent, ent); xtext->line_select = TRUE; } return FALSE; } /* check if it was a separator-bar click */ if (xtext->separator && xtext->buffer->indent) { line_x = xtext->buffer->indent - ((xtext->space_width + 1) / 2); if (line_x == x || line_x == x + 1 || line_x == x - 1) { xtext->moving_separator = TRUE; /* draw the separator line */ gtk_xtext_draw_sep (xtext, -1); return FALSE; } } xtext->button_down = TRUE; xtext->select_start_x = x; xtext->select_start_y = y; xtext->select_start_adj = xtext->adj->value; return FALSE; } /* another program has claimed the selection */ static gboolean gtk_xtext_selection_kill (GtkXText *xtext, GdkEventSelection *event) { #ifndef WIN32 if (xtext->buffer->last_ent_start) gtk_xtext_unselect (xtext); #endif return TRUE; } static char * gtk_xtext_selection_get_text (GtkXText *xtext, int *len_ret) { textentry *ent; char *txt; char *pos; char *stripped; int len; int first = TRUE; xtext_buffer *buf; buf = xtext->selection_buffer; if (!buf) return NULL; /* first find out how much we need to malloc ... */ len = 0; ent = buf->last_ent_start; while (ent) { if (ent->mark_start != -1) { /* include timestamp? */ if (ent->mark_start == 0 && xtext->mark_stamp) { char *time_str; int stamp_size = xtext_get_stamp_str (ent->stamp, &time_str); g_free (time_str); len += stamp_size; } if (ent->mark_end - ent->mark_start > 0) len += (ent->mark_end - ent->mark_start) + 1; else len++; } if (ent == buf->last_ent_end) break; ent = ent->next; } if (len < 1) return NULL; /* now allocate mem and copy buffer */ pos = txt = malloc (len); ent = buf->last_ent_start; while (ent) { if (ent->mark_start != -1) { if (!first) { *pos = '\n'; pos++; } first = FALSE; if (ent->mark_end - ent->mark_start > 0) { /* include timestamp? */ if (ent->mark_start == 0 && xtext->mark_stamp) { char *time_str; int stamp_size = xtext_get_stamp_str (ent->stamp, &time_str); memcpy (pos, time_str, stamp_size); g_free (time_str); pos += stamp_size; } memcpy (pos, ent->str + ent->mark_start, ent->mark_end - ent->mark_start); pos += ent->mark_end - ent->mark_start; } } if (ent == buf->last_ent_end) break; ent = ent->next; } *pos = 0; if (xtext->color_paste) { /*stripped = gtk_xtext_conv_color (txt, strlen (txt), &len);*/ stripped = txt; len = strlen (txt); } else { stripped = gtk_xtext_strip_color (txt, strlen (txt), NULL, &len, NULL, FALSE); free (txt); } *len_ret = len; return stripped; } /* another program is asking for our selection */ static void gtk_xtext_selection_get (GtkWidget * widget, GtkSelectionData * selection_data_ptr, guint info, guint time) { GtkXText *xtext = GTK_XTEXT (widget); char *stripped; guchar *new_text; int len; gsize glen; stripped = gtk_xtext_selection_get_text (xtext, &len); if (!stripped) return; switch (info) { case TARGET_UTF8_STRING: /* it's already in utf8 */ gtk_selection_data_set_text (selection_data_ptr, stripped, len); break; case TARGET_TEXT: case TARGET_COMPOUND_TEXT: #ifdef GDK_WINDOWING_X11 { GdkDisplay *display = gdk_window_get_display (widget->window); GdkAtom encoding; gint format; gint new_length; gdk_x11_display_string_to_compound_text (display, stripped, &encoding, &format, &new_text, &new_length); gtk_selection_data_set (selection_data_ptr, encoding, format, new_text, new_length); gdk_x11_free_compound_text (new_text); } break; #endif default: new_text = g_locale_from_utf8 (stripped, len, NULL, &glen, NULL); gtk_selection_data_set (selection_data_ptr, GDK_SELECTION_TYPE_STRING, 8, new_text, glen); g_free (new_text); } free (stripped); } static gboolean gtk_xtext_scroll (GtkWidget *widget, GdkEventScroll *event) { GtkXText *xtext = GTK_XTEXT (widget); gfloat new_value; if (event->direction == GDK_SCROLL_UP) /* mouse wheel pageUp */ { new_value = xtext->adj->value - (xtext->adj->page_increment / 10); if (new_value < xtext->adj->lower) new_value = xtext->adj->lower; gtk_adjustment_set_value (xtext->adj, new_value); } else if (event->direction == GDK_SCROLL_DOWN) /* mouse wheel pageDn */ { new_value = xtext->adj->value + (xtext->adj->page_increment / 10); if (new_value > (xtext->adj->upper - xtext->adj->page_size)) new_value = xtext->adj->upper - xtext->adj->page_size; gtk_adjustment_set_value (xtext->adj, new_value); } return FALSE; } static void gtk_xtext_scroll_adjustments (GtkXText *xtext, GtkAdjustment *hadj, GtkAdjustment *vadj) { /* hadj is ignored entirely */ if (vadj) g_return_if_fail (GTK_IS_ADJUSTMENT (vadj)); else vadj = GTK_ADJUSTMENT(gtk_adjustment_new (0, 0, 1, 1, 1, 1)); if (xtext->adj && (xtext->adj != vadj)) { g_signal_handlers_disconnect_by_func (xtext->adj, gtk_xtext_adjustment_changed, xtext); g_object_unref (xtext->adj); } if (xtext->adj != vadj) { xtext->adj = vadj; g_object_ref_sink (xtext->adj); xtext->vc_signal_tag = g_signal_connect (xtext->adj, "value-changed", G_CALLBACK (gtk_xtext_adjustment_changed), xtext); gtk_xtext_adjustment_changed (xtext->adj, xtext); } } static void gtk_xtext_class_init (GtkXTextClass * class) { GtkObjectClass *object_class; GtkWidgetClass *widget_class; GtkXTextClass *xtext_class; object_class = (GtkObjectClass *) class; widget_class = (GtkWidgetClass *) class; xtext_class = (GtkXTextClass *) class; parent_class = g_type_class_peek (gtk_widget_get_type ()); xtext_signals[WORD_CLICK] = g_signal_new ("word_click", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkXTextClass, word_click), NULL, NULL, _hexchat_marshal_VOID__POINTER_POINTER, G_TYPE_NONE, 2, G_TYPE_POINTER, G_TYPE_POINTER); xtext_signals[SET_SCROLL_ADJUSTMENTS] = g_signal_new ("set_scroll_adjustments", G_OBJECT_CLASS_TYPE (object_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkXTextClass, set_scroll_adjustments), NULL, NULL, _hexchat_marshal_VOID__OBJECT_OBJECT, G_TYPE_NONE, 2, GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT); object_class->destroy = gtk_xtext_destroy; widget_class->realize = gtk_xtext_realize; widget_class->unrealize = gtk_xtext_unrealize; widget_class->size_request = gtk_xtext_size_request; widget_class->size_allocate = gtk_xtext_size_allocate; widget_class->button_press_event = gtk_xtext_button_press; widget_class->button_release_event = gtk_xtext_button_release; widget_class->motion_notify_event = gtk_xtext_motion_notify; widget_class->selection_clear_event = (void *)gtk_xtext_selection_kill; widget_class->selection_get = gtk_xtext_selection_get; widget_class->expose_event = gtk_xtext_expose; widget_class->scroll_event = gtk_xtext_scroll; widget_class->leave_notify_event = gtk_xtext_leave_notify; widget_class->set_scroll_adjustments_signal = xtext_signals[SET_SCROLL_ADJUSTMENTS]; xtext_class->word_click = NULL; xtext_class->set_scroll_adjustments = gtk_xtext_scroll_adjustments; } GType gtk_xtext_get_type (void) { static GType xtext_type = 0; if (!xtext_type) { static const GTypeInfo xtext_info = { sizeof (GtkXTextClass), NULL, /* base_init */ NULL, /* base_finalize */ (GClassInitFunc) gtk_xtext_class_init, NULL, /* class_finalize */ NULL, /* class_data */ sizeof (GtkXText), 0, /* n_preallocs */ (GInstanceInitFunc) gtk_xtext_init, }; xtext_type = g_type_register_static (GTK_TYPE_WIDGET, "GtkXText", &xtext_info, 0); } return xtext_type; } /* strip MIRC colors and other attribs. */ /* CL: needs to strip hidden when called by gtk_xtext_text_width, but not when copying text */ typedef struct chunk_s { GSList *slp; int off1, len1, emph; offlen_t meta; } chunk_t; static void xtext_do_chunk(chunk_t *c) { offlen_t *meta; if (c->len1 == 0) return; meta = malloc (sizeof *meta); meta->off = c->off1; meta->len = c->len1; meta->emph = c->emph; meta->width = 0; c->slp = g_slist_append (c->slp, meta); c->len1 = 0; } static unsigned char * gtk_xtext_strip_color (unsigned char *text, int len, unsigned char *outbuf, int *newlen, GSList **slpp, int strip_hidden) { chunk_t c; int i = 0; int rcol = 0, bgcol = 0; int hidden = FALSE; unsigned char *new_str; unsigned char *text0 = text; int mbl; /* multi-byte length */ if (outbuf == NULL) new_str = malloc (len + 2); else new_str = outbuf; c.slp = NULL; c.off1 = 0; c.len1 = 0; c.emph = 0; while (len > 0) { mbl = charlen (text); if (mbl > len) goto bad_utf8; if (rcol > 0 && (isdigit (*text) || (*text == ',' && isdigit (text[1]) && !bgcol))) { if (text[1] != ',') rcol--; if (*text == ',') { rcol = 2; bgcol = 1; } } else { rcol = bgcol = 0; switch (*text) { case ATTR_COLOR: xtext_do_chunk (&c); rcol = 2; break; case ATTR_BEEP: case ATTR_RESET: case ATTR_REVERSE: case ATTR_BOLD: case ATTR_UNDERLINE: case ATTR_ITALICS: xtext_do_chunk (&c); if (*text == ATTR_RESET) c.emph = 0; if (*text == ATTR_ITALICS) c.emph ^= EMPH_ITAL; if (*text == ATTR_BOLD) c.emph ^= EMPH_BOLD; break; case ATTR_HIDDEN: xtext_do_chunk (&c); c.emph ^= EMPH_HIDDEN; hidden = !hidden; break; default: if (strip_hidden == 2 || (!(hidden && strip_hidden))) { if (c.len1 == 0) c.off1 = text - text0; memcpy (new_str + i, text, mbl); i += mbl; c.len1 += mbl; } } } text += mbl; len -= mbl; } bad_utf8: /* Normal ending sequence, and give up if bad utf8 */ xtext_do_chunk (&c); new_str[i] = 0; if (newlen != NULL) *newlen = i; if (slpp) *slpp = c.slp; else g_slist_free_full (c.slp, free); return new_str; } /* gives width of a string, excluding the mIRC codes */ static int gtk_xtext_text_width_ent (GtkXText *xtext, textentry *ent) { unsigned char *new_buf; GSList *slp0, *slp; int width; if (ent->slp) { g_slist_free_full (ent->slp, free); ent->slp = NULL; } new_buf = gtk_xtext_strip_color (ent->str, ent->str_len, xtext->scratch_buffer, NULL, &slp0, 2); width = backend_get_text_width_slp (xtext, new_buf, slp0); ent->slp = slp0; for (slp = slp0; slp; slp = g_slist_next (slp)) { offlen_t *meta; meta = slp->data; meta->width = backend_get_text_width_emph (xtext, ent->str + meta->off, meta->len, meta->emph); } return width; } static int gtk_xtext_text_width (GtkXText *xtext, unsigned char *text, int len) { unsigned char *new_buf; int new_len; GSList *slp; int width; new_buf = gtk_xtext_strip_color (text, len, xtext->scratch_buffer, &new_len, &slp, !xtext->ignore_hidden); width = backend_get_text_width_slp (xtext, new_buf, slp); g_slist_free_full (slp, free); return width; } /* actually draw text to screen (one run with the same color/attribs) */ static int gtk_xtext_render_flush (GtkXText * xtext, int x, int y, unsigned char *str, int len, GdkGC *gc, int *emphasis) { int str_width, dofill; GdkDrawable *pix = NULL; int dest_x = 0, dest_y = 0; if (xtext->dont_render || len < 1 || xtext->hidden) return 0; str_width = backend_get_text_width_emph (xtext, str, len, *emphasis); if (xtext->dont_render2) return str_width; /* roll-your-own clipping (avoiding XftDrawString is always good!) */ if (x > xtext->clip_x2 || x + str_width < xtext->clip_x) return str_width; if (y - xtext->font->ascent > xtext->clip_y2 || (y - xtext->font->ascent) + xtext->fontsize < xtext->clip_y) return str_width; if (xtext->render_hilights_only) { if (!xtext->in_hilight) /* is it a hilight prefix? */ return str_width; if (!xtext->un_hilight) /* doing a hilight? no need to draw the text */ goto dounder; } pix = gdk_pixmap_new (xtext->draw_buf, str_width, xtext->fontsize, xtext->depth); if (pix) { dest_x = x; dest_y = y - xtext->font->ascent; gdk_gc_set_ts_origin (xtext->bgc, xtext->ts_x - x, xtext->ts_y - dest_y); x = 0; y = xtext->font->ascent; xtext->draw_buf = pix; } dofill = TRUE; /* backcolor is always handled by XDrawImageString */ if (!xtext->backcolor && xtext->pixmap) { /* draw the background pixmap behind the text - CAUSES FLICKER HERE!! */ xtext_draw_bg (xtext, x, y - xtext->font->ascent, str_width, xtext->fontsize); dofill = FALSE; /* already drawn the background */ } backend_draw_text_emph (xtext, dofill, gc, x, y, str, len, str_width, *emphasis); if (pix) { GdkRectangle clip; GdkRectangle dest; gdk_gc_set_ts_origin (xtext->bgc, xtext->ts_x, xtext->ts_y); xtext->draw_buf = GTK_WIDGET (xtext)->window; clip.x = xtext->clip_x; clip.y = xtext->clip_y; clip.width = xtext->clip_x2 - xtext->clip_x; clip.height = xtext->clip_y2 - xtext->clip_y; dest.x = dest_x; dest.y = dest_y; dest.width = str_width; dest.height = xtext->fontsize; if (gdk_rectangle_intersect (&clip, &dest, &dest)) /* dump the DB to window, but only within the clip_x/x2/y/y2 */ gdk_draw_drawable (xtext->draw_buf, xtext->bgc, pix, dest.x - dest_x, dest.y - dest_y, dest.x, dest.y, dest.width, dest.height); g_object_unref (pix); } if (xtext->underline) { dounder: if (pix) y = dest_y + xtext->font->ascent + 1; else { y++; dest_x = x; } /* draw directly to window, it's out of the range of our DB */ gdk_draw_line (xtext->draw_buf, gc, dest_x, y, dest_x + str_width - 1, y); } return str_width; } static void gtk_xtext_reset (GtkXText * xtext, int mark, int attribs) { if (attribs) { xtext->underline = FALSE; xtext->hidden = FALSE; } if (!mark) { xtext->backcolor = FALSE; if (xtext->col_fore != XTEXT_FG) xtext_set_fg (xtext, xtext->fgc, XTEXT_FG); if (xtext->col_back != XTEXT_BG) xtext_set_bg (xtext, xtext->fgc, XTEXT_BG); } xtext->col_fore = XTEXT_FG; xtext->col_back = XTEXT_BG; xtext->parsing_color = FALSE; xtext->parsing_backcolor = FALSE; xtext->nc = 0; } /* * gtk_xtext_search_offset (buf, ent, off) -- * Look for arg offset in arg textentry * Return one or more flags: * GTK_MATCH_MID if we are in a match * GTK_MATCH_START if we're at the first byte of it * GTK_MATCH_END if we're at the first byte past it * GTK_MATCH_CUR if it is the current match */ #define GTK_MATCH_START 1 #define GTK_MATCH_MID 2 #define GTK_MATCH_END 4 #define GTK_MATCH_CUR 8 static int gtk_xtext_search_offset (xtext_buffer *buf, textentry *ent, unsigned int off) { GList *gl; offsets_t o; int flags = 0; for (gl = g_list_first (ent->marks); gl; gl = g_list_next (gl)) { o.u = GPOINTER_TO_UINT (gl->data); if (off < o.o.start || off > o.o.end) continue; flags = GTK_MATCH_MID; if (off == o.o.start) flags |= GTK_MATCH_START; if (off == o.o.end) { gl = g_list_next (gl); if (gl) { o.u = GPOINTER_TO_UINT (gl->data); if (off == o.o.start) /* If subseq match is adjacent */ { flags |= (gl == buf->curmark)? GTK_MATCH_CUR: 0; } else /* If subseq match is not adjacent */ { flags |= GTK_MATCH_END; } } else /* If there is no subseq match */ { flags |= GTK_MATCH_END; } } else if (gl == buf->curmark) /* If not yet at the end of this match */ { flags |= GTK_MATCH_CUR; } break; } return flags; } /* render a single line, which WONT wrap, and parse mIRC colors */ #define RENDER_FLUSH x += gtk_xtext_render_flush (xtext, x, y, pstr, j, gc, emphasis) static int gtk_xtext_render_str (GtkXText * xtext, int y, textentry * ent, unsigned char *str, int len, int win_width, int indent, int line, int left_only, int *x_size_ret, int *emphasis) { GdkGC *gc; int i = 0, x = indent, j = 0; unsigned char *pstr = str; int col_num, tmp; int offset; int mark = FALSE; int ret = 1; int k; int srch_underline = FALSE; int srch_mark = FALSE; xtext->in_hilight = FALSE; offset = str - ent->str; gc = xtext->fgc; /* our foreground GC */ if (ent->mark_start != -1 && ent->mark_start <= i + offset && ent->mark_end > i + offset) { xtext_set_bg (xtext, gc, XTEXT_MARK_BG); xtext_set_fg (xtext, gc, XTEXT_MARK_FG); xtext->backcolor = TRUE; mark = TRUE; } if (xtext->hilight_ent == ent && xtext->hilight_start <= i + offset && xtext->hilight_end > i + offset) { if (!xtext->un_hilight) { xtext->underline = TRUE; } xtext->in_hilight = TRUE; } if (!xtext->skip_border_fills && !xtext->dont_render) { /* draw background to the left of the text */ if (str == ent->str && indent > MARGIN && xtext->buffer->time_stamp) { /* don't overwrite the timestamp */ if (indent > xtext->stamp_width) { xtext_draw_bg (xtext, xtext->stamp_width, y - xtext->font->ascent, indent - xtext->stamp_width, xtext->fontsize); } } else { /* fill the indent area with background gc */ if (indent >= xtext->clip_x) { xtext_draw_bg (xtext, 0, y - xtext->font->ascent, MIN (indent, xtext->clip_x2), xtext->fontsize); } } } if (xtext->jump_in_offset > 0 && offset < xtext->jump_in_offset) xtext->dont_render2 = TRUE; while (i < len) { if (xtext->hilight_ent == ent && xtext->hilight_start == (i + offset)) { RENDER_FLUSH; pstr += j; j = 0; if (!xtext->un_hilight) { xtext->underline = TRUE; } xtext->in_hilight = TRUE; } if ((xtext->parsing_color && isdigit (str[i]) && xtext->nc < 2) || (xtext->parsing_color && str[i] == ',' && isdigit (str[i+1]) && xtext->nc < 3 && !xtext->parsing_backcolor)) { pstr++; if (str[i] == ',') { xtext->parsing_backcolor = TRUE; if (xtext->nc) { xtext->num[xtext->nc] = 0; xtext->nc = 0; col_num = atoi (xtext->num); if (col_num == 99) /* mIRC lameness */ col_num = XTEXT_FG; else if (col_num > XTEXT_MAX_COLOR) col_num = col_num % XTEXT_MIRC_COLS; xtext->col_fore = col_num; if (!mark) xtext_set_fg (xtext, gc, col_num); } } else { xtext->num[xtext->nc] = str[i]; if (xtext->nc < 7) xtext->nc++; } } else { if (xtext->parsing_color) { xtext->parsing_color = FALSE; if (xtext->nc) { xtext->num[xtext->nc] = 0; xtext->nc = 0; col_num = atoi (xtext->num); if (xtext->parsing_backcolor) { if (col_num == 99) /* mIRC lameness */ col_num = XTEXT_BG; else if (col_num > XTEXT_MAX_COLOR) col_num = col_num % XTEXT_MIRC_COLS; if (col_num == XTEXT_BG) xtext->backcolor = FALSE; else xtext->backcolor = TRUE; if (!mark) xtext_set_bg (xtext, gc, col_num); xtext->col_back = col_num; } else { if (col_num == 99) /* mIRC lameness */ col_num = XTEXT_FG; else if (col_num > XTEXT_MAX_COLOR) col_num = col_num % XTEXT_MIRC_COLS; if (!mark) xtext_set_fg (xtext, gc, col_num); xtext->col_fore = col_num; } xtext->parsing_backcolor = FALSE; } else { /* got a \003... i.e. reset colors */ RENDER_FLUSH; pstr += j; j = 0; gtk_xtext_reset (xtext, mark, FALSE); } } if (!left_only && !mark && (k = gtk_xtext_search_offset (xtext->buffer, ent, offset + i))) { RENDER_FLUSH; pstr += j; j = 0; if (!(xtext->buffer->search_flags & highlight)) { if (k & GTK_MATCH_CUR) { xtext_set_bg (xtext, gc, XTEXT_MARK_BG); xtext_set_fg (xtext, gc, XTEXT_MARK_FG); xtext->backcolor = TRUE; srch_mark = TRUE; } else { xtext_set_bg (xtext, gc, xtext->col_back); xtext_set_fg (xtext, gc, xtext->col_fore); xtext->backcolor = (xtext->col_back != XTEXT_BG)? TRUE: FALSE; srch_mark = FALSE; } } else { xtext->underline = (k & GTK_MATCH_CUR)? TRUE: FALSE; if (k & (GTK_MATCH_START | GTK_MATCH_MID)) { xtext_set_bg (xtext, gc, XTEXT_MARK_BG); xtext_set_fg (xtext, gc, XTEXT_MARK_FG); xtext->backcolor = TRUE; srch_mark = TRUE; } if (k & GTK_MATCH_END) { xtext_set_bg (xtext, gc, xtext->col_back); xtext_set_fg (xtext, gc, xtext->col_fore); xtext->backcolor = (xtext->col_back != XTEXT_BG)? TRUE: FALSE; srch_mark = FALSE; xtext->underline = FALSE; } srch_underline = xtext->underline; } } switch (str[i]) { case '\n': /*case ATTR_BEEP:*/ break; case ATTR_REVERSE: RENDER_FLUSH; pstr += j + 1; j = 0; tmp = xtext->col_fore; xtext->col_fore = xtext->col_back; xtext->col_back = tmp; if (!mark) { xtext_set_fg (xtext, gc, xtext->col_fore); xtext_set_bg (xtext, gc, xtext->col_back); } if (xtext->col_back != XTEXT_BG) xtext->backcolor = TRUE; else xtext->backcolor = FALSE; break; case ATTR_BOLD: RENDER_FLUSH; *emphasis ^= EMPH_BOLD; pstr += j + 1; j = 0; break; case ATTR_UNDERLINE: RENDER_FLUSH; xtext->underline = !xtext->underline; pstr += j + 1; j = 0; break; case ATTR_ITALICS: RENDER_FLUSH; *emphasis ^= EMPH_ITAL; pstr += j + 1; j = 0; break; case ATTR_HIDDEN: RENDER_FLUSH; xtext->hidden = (!xtext->hidden) & (!xtext->ignore_hidden); pstr += j + 1; j = 0; break; case ATTR_RESET: RENDER_FLUSH; *emphasis = 0; pstr += j + 1; j = 0; gtk_xtext_reset (xtext, mark, !xtext->in_hilight); break; case ATTR_COLOR: RENDER_FLUSH; xtext->parsing_color = TRUE; pstr += j + 1; j = 0; break; default: tmp = charlen (str + i); /* invalid utf8 safe guard */ if (tmp + i > len) tmp = len - i; j += tmp; /* move to the next utf8 char */ } } i += charlen (str + i); /* move to the next utf8 char */ /* invalid utf8 safe guard */ if (i > len) i = len; /* Separate the left part, the space and the right part into separate runs, and reset bidi state inbetween. Perform this only on the first line of the message. */ if (offset == 0) { /* we've reached the end of the left part? */ if ((pstr-str)+j == ent->left_len) { RENDER_FLUSH; pstr += j; j = 0; } else if ((pstr-str)+j == ent->left_len+1) { RENDER_FLUSH; pstr += j; j = 0; } } /* have we been told to stop rendering at this point? */ if (xtext->jump_out_offset > 0 && xtext->jump_out_offset <= (i + offset)) { gtk_xtext_render_flush (xtext, x, y, pstr, j, gc, emphasis); ret = 0; /* skip the rest of the lines, we're done. */ j = 0; break; } if (xtext->jump_in_offset > 0 && xtext->jump_in_offset == (i + offset)) { RENDER_FLUSH; pstr += j; j = 0; xtext->dont_render2 = FALSE; } if (xtext->hilight_ent == ent && xtext->hilight_end == (i + offset)) { RENDER_FLUSH; pstr += j; j = 0; xtext->underline = FALSE; xtext->in_hilight = FALSE; if (xtext->render_hilights_only) { /* stop drawing this ent */ ret = 0; break; } } if (!mark && ent->mark_start == (i + offset)) { RENDER_FLUSH; pstr += j; j = 0; xtext_set_bg (xtext, gc, XTEXT_MARK_BG); xtext_set_fg (xtext, gc, XTEXT_MARK_FG); xtext->backcolor = TRUE; if (srch_underline) { xtext->underline = FALSE; srch_underline = FALSE; } mark = TRUE; } if (mark && ent->mark_end == (i + offset)) { RENDER_FLUSH; pstr += j; j = 0; xtext_set_bg (xtext, gc, xtext->col_back); xtext_set_fg (xtext, gc, xtext->col_fore); if (xtext->col_back != XTEXT_BG) xtext->backcolor = TRUE; else xtext->backcolor = FALSE; mark = FALSE; } } if (j) RENDER_FLUSH; if (mark || srch_mark) { xtext_set_bg (xtext, gc, xtext->col_back); xtext_set_fg (xtext, gc, xtext->col_fore); if (xtext->col_back != XTEXT_BG) xtext->backcolor = TRUE; else xtext->backcolor = FALSE; } /* draw background to the right of the text */ if (!left_only && !xtext->dont_render) { /* draw separator now so it doesn't appear to flicker */ gtk_xtext_draw_sep (xtext, y - xtext->font->ascent); if (!xtext->skip_border_fills && xtext->clip_x2 >= x) { int xx = MAX (x, xtext->clip_x); xtext_draw_bg (xtext, xx, /* x */ y - xtext->font->ascent, /* y */ MIN (xtext->clip_x2 - xx, (win_width + MARGIN) - xx), /* width */ xtext->fontsize); /* height */ } } xtext->dont_render2 = FALSE; /* return how much we drew in the x direction */ if (x_size_ret) *x_size_ret = x - indent; return ret; } /* walk through str until this line doesn't fit anymore */ static int find_next_wrap (GtkXText * xtext, textentry * ent, unsigned char *str, int win_width, int indent) { unsigned char *last_space = str; unsigned char *orig_str = str; int str_width = indent; int rcol = 0, bgcol = 0; int hidden = FALSE; int mbl; int char_width; int ret; int limit_offset = 0; int emphasis = 0; GSList *lp; /* single liners */ if (win_width >= ent->str_width + ent->indent) return ent->str_len; /* it does happen! */ if (win_width < 1) { ret = ent->str_len - (str - ent->str); goto done; } /* Find emphasis value for the offset that is the first byte of our string */ for (lp = ent->slp; lp; lp = g_slist_next (lp)) { offlen_t *meta = lp->data; unsigned char *start, *end; start = ent->str + meta->off; end = start + meta->len; if (str >= start && str < end) { emphasis = meta->emph; break; } } while (1) { if (rcol > 0 && (isdigit (*str) || (*str == ',' && isdigit (str[1]) && !bgcol))) { if (str[1] != ',') rcol--; if (*str == ',') { rcol = 2; bgcol = 1; } limit_offset++; str++; } else { rcol = bgcol = 0; switch (*str) { case ATTR_COLOR: rcol = 2; case ATTR_BEEP: case ATTR_RESET: case ATTR_REVERSE: case ATTR_BOLD: case ATTR_UNDERLINE: case ATTR_ITALICS: if (*str == ATTR_RESET) emphasis = 0; if (*str == ATTR_ITALICS) emphasis ^= EMPH_ITAL; if (*str == ATTR_BOLD) emphasis ^= EMPH_BOLD; limit_offset++; str++; break; case ATTR_HIDDEN: if (xtext->ignore_hidden) goto def; hidden = !hidden; limit_offset++; str++; break; default: def: mbl = charlen (str); char_width = backend_get_text_width_emph (xtext, str, mbl, emphasis); if (!hidden) str_width += char_width; if (str_width > win_width) { if (xtext->wordwrap) { if (str - last_space > WORDWRAP_LIMIT + limit_offset) ret = str - orig_str; /* fall back to character wrap */ else { if (*last_space == ' ') last_space++; ret = last_space - orig_str; if (ret == 0) /* fall back to character wrap */ ret = str - orig_str; } goto done; } ret = str - orig_str; goto done; } /* keep a record of the last space, for wordwrapping */ if (is_del (*str)) { last_space = str; limit_offset = 0; } /* progress to the next char */ str += mbl; } } if (str >= ent->str + ent->str_len) { ret = str - orig_str; goto done; } } done: /* must make progress */ if (ret < 1) ret = 1; return ret; } /* find the offset, in bytes, that wrap number 'line' starts at */ static int gtk_xtext_find_subline (GtkXText *xtext, textentry *ent, int line) { int rlen = 0; if (line > 0) { rlen = GPOINTER_TO_UINT (g_slist_nth_data (ent->sublines, line - 1)); if (rlen == 0) rlen = ent->str_len; } return rlen; } /* horrible hack for drawing time stamps */ static void gtk_xtext_render_stamp (GtkXText * xtext, textentry * ent, char *text, int len, int line, int win_width) { textentry tmp_ent; int jo, ji, hs; int xsize, y, emphasis; /* trashing ent here, so make a backup first */ memcpy (&tmp_ent, ent, sizeof (tmp_ent)); jo = xtext->jump_out_offset; /* back these up */ ji = xtext->jump_in_offset; hs = xtext->hilight_start; xtext->jump_out_offset = 0; xtext->jump_in_offset = 0; xtext->hilight_start = 0xffff; /* temp disable */ emphasis = 0; if (xtext->mark_stamp) { /* if this line is marked, mark this stamp too */ if (ent->mark_start == 0) { ent->mark_start = 0; ent->mark_end = len; } else { ent->mark_start = -1; ent->mark_end = -1; } ent->str = text; } y = (xtext->fontsize * line) + xtext->font->ascent - xtext->pixel_offset; gtk_xtext_render_str (xtext, y, ent, text, len, win_width, 2, line, TRUE, &xsize, &emphasis); /* restore everything back to how it was */ memcpy (ent, &tmp_ent, sizeof (tmp_ent)); xtext->jump_out_offset = jo; xtext->jump_in_offset = ji; xtext->hilight_start = hs; /* with a non-fixed-width font, sometimes we don't draw enough background i.e. when this stamp is shorter than xtext->stamp_width */ xsize += MARGIN; if (xsize < xtext->stamp_width) { y -= xtext->font->ascent; xtext_draw_bg (xtext, xsize, /* x */ y, /* y */ xtext->stamp_width - xsize, /* width */ xtext->fontsize /* height */); } } /* render a single line, which may wrap to more lines */ static int gtk_xtext_render_line (GtkXText * xtext, textentry * ent, int line, int lines_max, int subline, int win_width) { unsigned char *str; int indent, taken, entline, len, y, start_subline; int emphasis = 0; entline = taken = 0; str = ent->str; indent = ent->indent; start_subline = subline; /* draw the timestamp */ if (xtext->auto_indent && xtext->buffer->time_stamp && (!xtext->skip_stamp || xtext->mark_stamp || xtext->force_stamp)) { char *time_str; int len; len = xtext_get_stamp_str (ent->stamp, &time_str); gtk_xtext_render_stamp (xtext, ent, time_str, len, line, win_width); g_free (time_str); } /* draw each line one by one */ do { if (entline > 0) len = GPOINTER_TO_INT (g_slist_nth_data (ent->sublines, entline)) - GPOINTER_TO_INT (g_slist_nth_data (ent->sublines, entline - 1)); else len = GPOINTER_TO_INT (g_slist_nth_data (ent->sublines, entline)); entline++; y = (xtext->fontsize * line) + xtext->font->ascent - xtext->pixel_offset; if (!subline) { if (!gtk_xtext_render_str (xtext, y, ent, str, len, win_width, indent, line, FALSE, NULL, &emphasis)) { /* small optimization */ gtk_xtext_draw_marker (xtext, ent, y - xtext->fontsize * (taken + start_subline + 1)); return g_slist_length (ent->sublines) - subline; } } else { xtext->dont_render = TRUE; gtk_xtext_render_str (xtext, y, ent, str, len, win_width, indent, line, FALSE, NULL, &emphasis); xtext->dont_render = FALSE; subline--; line--; taken--; } indent = xtext->buffer->indent; line++; taken++; str += len; if (line >= lines_max) break; } while (str < ent->str + ent->str_len); gtk_xtext_draw_marker (xtext, ent, y - xtext->fontsize * (taken + start_subline)); return taken; } void gtk_xtext_set_palette (GtkXText * xtext, GdkColor palette[]) { int i; for (i = (XTEXT_COLS-1); i >= 0; i--) { xtext->palette[i] = palette[i]; } if (gtk_widget_get_realized (GTK_WIDGET(xtext))) { xtext_set_fg (xtext, xtext->fgc, XTEXT_FG); xtext_set_bg (xtext, xtext->fgc, XTEXT_BG); xtext_set_fg (xtext, xtext->bgc, XTEXT_BG); gdk_gc_set_foreground (xtext->marker_gc, &xtext->palette[XTEXT_MARKER]); } xtext->col_fore = XTEXT_FG; xtext->col_back = XTEXT_BG; } static void gtk_xtext_fix_indent (xtext_buffer *buf) { int j; /* make indent a multiple of the space width */ if (buf->indent && buf->xtext->space_width) { j = 0; while (j < buf->indent) { j += buf->xtext->space_width; } buf->indent = j; } dontscroll (buf); /* force scrolling off */ } static void gtk_xtext_recalc_widths (xtext_buffer *buf, int do_str_width) { textentry *ent; /* since we have a new font, we have to recalc the text widths */ ent = buf->text_first; while (ent) { if (do_str_width) { ent->str_width = gtk_xtext_text_width_ent (buf->xtext, ent); } if (ent->left_len != -1) { ent->indent = (buf->indent - gtk_xtext_text_width (buf->xtext, ent->str, ent->left_len)) - buf->xtext->space_width; if (ent->indent < MARGIN) ent->indent = MARGIN; } ent = ent->next; } gtk_xtext_calc_lines (buf, FALSE); } int gtk_xtext_set_font (GtkXText *xtext, char *name) { if (xtext->font) backend_font_close (xtext); /* realize now, so that font_open has a XDisplay */ gtk_widget_realize (GTK_WIDGET (xtext)); backend_font_open (xtext, name); if (xtext->font == NULL) return FALSE; xtext->fontsize = xtext->font->ascent + xtext->font->descent; { char *time_str; int stamp_size = xtext_get_stamp_str (time(0), &time_str); xtext->stamp_width = gtk_xtext_text_width (xtext, time_str, stamp_size) + MARGIN; g_free (time_str); } gtk_xtext_fix_indent (xtext->buffer); if (gtk_widget_get_realized (GTK_WIDGET(xtext))) gtk_xtext_recalc_widths (xtext->buffer, TRUE); return TRUE; } void gtk_xtext_set_background (GtkXText * xtext, GdkPixmap * pixmap) { GdkGCValues val; if (xtext->pixmap) { g_object_unref (xtext->pixmap); xtext->pixmap = NULL; } dontscroll (xtext->buffer); xtext->pixmap = pixmap; if (pixmap != 0) { g_object_ref (pixmap); if (gtk_widget_get_realized (GTK_WIDGET(xtext))) { gdk_gc_set_tile (xtext->bgc, pixmap); gdk_gc_set_ts_origin (xtext->bgc, 0, 0); xtext->ts_x = xtext->ts_y = 0; gdk_gc_set_fill (xtext->bgc, GDK_TILED); } } else if (gtk_widget_get_realized (GTK_WIDGET(xtext))) { g_object_unref (xtext->bgc); val.subwindow_mode = GDK_INCLUDE_INFERIORS; val.graphics_exposures = 0; xtext->bgc = gdk_gc_new_with_values (GTK_WIDGET (xtext)->window, &val, GDK_GC_EXPOSURES | GDK_GC_SUBWINDOW); xtext_set_fg (xtext, xtext->bgc, XTEXT_BG); } } void gtk_xtext_save (GtkXText * xtext, int fh) { textentry *ent; int newlen; char *buf; ent = xtext->buffer->text_first; while (ent) { buf = gtk_xtext_strip_color (ent->str, ent->str_len, NULL, &newlen, NULL, FALSE); write (fh, buf, newlen); write (fh, "\n", 1); free (buf); ent = ent->next; } } /* count how many lines 'ent' will take (with wraps) */ static int gtk_xtext_lines_taken (xtext_buffer *buf, textentry * ent) { unsigned char *str; int indent, len; int win_width; g_slist_free (ent->sublines); ent->sublines = NULL; win_width = buf->window_width - MARGIN; if (win_width >= ent->indent + ent->str_width) { ent->sublines = g_slist_append (ent->sublines, GINT_TO_POINTER (ent->str_len)); return 1; } indent = ent->indent; str = ent->str; do { len = find_next_wrap (buf->xtext, ent, str, win_width, indent); ent->sublines = g_slist_append (ent->sublines, GINT_TO_POINTER (str + len - ent->str)); indent = buf->indent; str += len; } while (str < ent->str + ent->str_len); return g_slist_length (ent->sublines); } /* Calculate number of actual lines (with wraps), to set adj->lower. * * This should only be called when the window resizes. */ static void gtk_xtext_calc_lines (xtext_buffer *buf, int fire_signal) { textentry *ent; int width; int height; int lines; height = gdk_window_get_height (gtk_widget_get_window (GTK_WIDGET (buf->xtext))); width = gdk_window_get_width (gtk_widget_get_window (GTK_WIDGET (buf->xtext))); width -= MARGIN; if (width < 30 || height < buf->xtext->fontsize || width < buf->indent + 30) return; lines = 0; ent = buf->text_first; while (ent) { lines += gtk_xtext_lines_taken (buf, ent); ent = ent->next; } buf->pagetop_ent = NULL; buf->num_lines = lines; gtk_xtext_adjustment_set (buf, fire_signal); } /* find the n-th line in the linked list, this includes wrap calculations */ static textentry * gtk_xtext_nth (GtkXText *xtext, int line, int *subline) { int lines = 0; textentry *ent; ent = xtext->buffer->text_first; /* -- optimization -- try to make a short-cut using the pagetop ent */ if (xtext->buffer->pagetop_ent) { if (line == xtext->buffer->pagetop_line) { *subline = xtext->buffer->pagetop_subline; return xtext->buffer->pagetop_ent; } if (line > xtext->buffer->pagetop_line) { /* lets start from the pagetop instead of the absolute beginning */ ent = xtext->buffer->pagetop_ent; lines = xtext->buffer->pagetop_line - xtext->buffer->pagetop_subline; } else if (line > xtext->buffer->pagetop_line - line) { /* move backwards from pagetop */ ent = xtext->buffer->pagetop_ent; lines = xtext->buffer->pagetop_line - xtext->buffer->pagetop_subline; while (1) { if (lines <= line) { *subline = line - lines; return ent; } ent = ent->prev; if (!ent) break; lines -= g_slist_length (ent->sublines); } return 0; } } /* -- end of optimization -- */ while (ent) { lines += g_slist_length (ent->sublines); if (lines > line) { *subline = g_slist_length (ent->sublines) - (lines - line); return ent; } ent = ent->next; } return 0; } /* render enta (or an inclusive range enta->entb) */ static int gtk_xtext_render_ents (GtkXText * xtext, textentry * enta, textentry * entb) { textentry *ent, *orig_ent, *tmp_ent; int line; int lines_max; int width; int height; int subline; int drawing = FALSE; if (xtext->buffer->indent < MARGIN) xtext->buffer->indent = MARGIN; /* 2 pixels is our left margin */ height = gdk_window_get_height (gtk_widget_get_window (GTK_WIDGET (xtext))); width = gdk_window_get_width (gtk_widget_get_window (GTK_WIDGET (xtext))); width -= MARGIN; if (width < 32 || height < xtext->fontsize || width < xtext->buffer->indent + 30) return 0; lines_max = ((height + xtext->pixel_offset) / xtext->fontsize) + 1; line = 0; orig_ent = xtext->buffer->pagetop_ent; subline = xtext->buffer->pagetop_subline; /* used before a complete page is in buffer */ if (orig_ent == NULL) orig_ent = xtext->buffer->text_first; /* check if enta is before the start of this page */ if (entb) { tmp_ent = orig_ent; while (tmp_ent) { if (tmp_ent == enta) break; if (tmp_ent == entb) { drawing = TRUE; break; } tmp_ent = tmp_ent->next; } } ent = orig_ent; while (ent) { if (entb && ent == enta) drawing = TRUE; if (drawing || ent == entb || ent == enta) { gtk_xtext_reset (xtext, FALSE, TRUE); line += gtk_xtext_render_line (xtext, ent, line, lines_max, subline, width); subline = 0; xtext->jump_in_offset = 0; /* jump_in_offset only for the 1st */ } else { if (ent == orig_ent) { line -= subline; subline = 0; } line += g_slist_length (ent->sublines); } if (ent == entb) break; if (line >= lines_max) break; ent = ent->next; } /* space below last line */ return (xtext->fontsize * line) - xtext->pixel_offset; } /* render a whole page/window, starting from 'startline' */ static void gtk_xtext_render_page (GtkXText * xtext) { textentry *ent; int line; int lines_max; int width; int height; int subline; int startline = xtext->adj->value; int pos, overlap; if(!gtk_widget_get_realized(GTK_WIDGET(xtext))) return; if (xtext->buffer->indent < MARGIN) xtext->buffer->indent = MARGIN; /* 2 pixels is our left margin */ gdk_drawable_get_size (GTK_WIDGET (xtext)->window, &width, &height); if (width < 34 || height < xtext->fontsize || width < xtext->buffer->indent + 32) return; xtext->pixel_offset = (xtext->adj->value - startline) * xtext->fontsize; subline = line = 0; ent = xtext->buffer->text_first; if (startline > 0) ent = gtk_xtext_nth (xtext, startline, &subline); xtext->buffer->pagetop_ent = ent; xtext->buffer->pagetop_subline = subline; xtext->buffer->pagetop_line = startline; if (xtext->buffer->num_lines <= xtext->adj->page_size) dontscroll (xtext->buffer); pos = xtext->adj->value * xtext->fontsize; overlap = xtext->buffer->last_pixel_pos - pos; xtext->buffer->last_pixel_pos = pos; #ifndef __APPLE__ if (!xtext->pixmap && abs (overlap) < height) { GdkRectangle area; /* so the obscured regions are exposed */ gdk_gc_set_exposures (xtext->fgc, TRUE); if (overlap < 1) /* DOWN */ { int remainder; gdk_draw_drawable (xtext->draw_buf, xtext->fgc, xtext->draw_buf, 0, -overlap, 0, 0, width, height + overlap); remainder = ((height - xtext->font->descent) % xtext->fontsize) + xtext->font->descent; area.y = (height + overlap) - remainder; area.height = remainder - overlap; } else { gdk_draw_drawable (xtext->draw_buf, xtext->fgc, xtext->draw_buf, 0, 0, 0, overlap, width, height - overlap); area.y = 0; area.height = overlap; } gdk_gc_set_exposures (xtext->fgc, FALSE); if (area.height > 0) { area.x = 0; area.width = width; gtk_xtext_paint (GTK_WIDGET (xtext), &area); } return; } #endif width -= MARGIN; lines_max = ((height + xtext->pixel_offset) / xtext->fontsize) + 1; while (ent) { gtk_xtext_reset (xtext, FALSE, TRUE); line += gtk_xtext_render_line (xtext, ent, line, lines_max, subline, width); subline = 0; if (line >= lines_max) break; ent = ent->next; } line = (xtext->fontsize * line) - xtext->pixel_offset; /* fill any space below the last line with our background GC */ xtext_draw_bg (xtext, 0, line, width + MARGIN, height - line); /* draw the separator line */ gtk_xtext_draw_sep (xtext, -1); } void gtk_xtext_refresh (GtkXText * xtext) { if (gtk_widget_get_realized (GTK_WIDGET (xtext))) { gtk_xtext_render_page (xtext); } } static int gtk_xtext_kill_ent (xtext_buffer *buffer, textentry *ent) { int visible; /* Set visible to TRUE if this is the current buffer */ /* and this ent shows up on the screen now */ visible = buffer->xtext->buffer == buffer && gtk_xtext_check_ent_visibility (buffer->xtext, ent, 0); if (ent == buffer->pagetop_ent) buffer->pagetop_ent = NULL; if (ent == buffer->last_ent_start) { buffer->last_ent_start = ent->next; buffer->last_offset_start = 0; } if (ent == buffer->last_ent_end) { buffer->last_ent_start = NULL; buffer->last_ent_end = NULL; } if (buffer->marker_pos == ent) { /* Allow for "Marker line reset because exceeded scrollback limit. to appear. */ buffer->marker_pos = ent->next; buffer->marker_state = MARKER_RESET_BY_KILL; } if (ent->marks) { gtk_xtext_search_textentry_del (buffer, ent); } g_slist_free_full (ent->slp, free); g_slist_free (ent->sublines); free (ent); return visible; } /* remove the topline from the list */ static void gtk_xtext_remove_top (xtext_buffer *buffer) { textentry *ent; ent = buffer->text_first; if (!ent) return; buffer->num_lines -= g_slist_length (ent->sublines); buffer->pagetop_line -= g_slist_length (ent->sublines); buffer->last_pixel_pos -= (g_slist_length (ent->sublines) * buffer->xtext->fontsize); buffer->text_first = ent->next; if (buffer->text_first) buffer->text_first->prev = NULL; else buffer->text_last = NULL; buffer->old_value -= g_slist_length (ent->sublines); if (buffer->xtext->buffer == buffer) /* is it the current buffer? */ { buffer->xtext->adj->value -= g_slist_length (ent->sublines); buffer->xtext->select_start_adj -= g_slist_length (ent->sublines); } if (gtk_xtext_kill_ent (buffer, ent)) { if (!buffer->xtext->add_io_tag) { /* remove scrolling events */ if (buffer->xtext->io_tag) { g_source_remove (buffer->xtext->io_tag); buffer->xtext->io_tag = 0; } buffer->xtext->force_render = TRUE; buffer->xtext->add_io_tag = g_timeout_add (REFRESH_TIMEOUT * 2, (GSourceFunc) gtk_xtext_render_page_timeout, buffer->xtext); } } } static void gtk_xtext_remove_bottom (xtext_buffer *buffer) { textentry *ent; ent = buffer->text_last; if (!ent) return; buffer->num_lines -= g_slist_length (ent->sublines); buffer->text_last = ent->prev; if (buffer->text_last) buffer->text_last->next = NULL; else buffer->text_first = NULL; if (gtk_xtext_kill_ent (buffer, ent)) { if (!buffer->xtext->add_io_tag) { /* remove scrolling events */ if (buffer->xtext->io_tag) { g_source_remove (buffer->xtext->io_tag); buffer->xtext->io_tag = 0; } buffer->xtext->force_render = TRUE; buffer->xtext->add_io_tag = g_timeout_add (REFRESH_TIMEOUT * 2, (GSourceFunc) gtk_xtext_render_page_timeout, buffer->xtext); } } } /* If lines=0 => clear all */ void gtk_xtext_clear (xtext_buffer *buf, int lines) { textentry *next; int marker_reset = FALSE; if (lines != 0) { if (lines < 0) { /* delete lines from bottom */ lines *= -1; while (lines) { if (buf->text_last == buf->marker_pos) marker_reset = TRUE; gtk_xtext_remove_bottom (buf); lines--; } } else { /* delete lines from top */ while (lines) { if (buf->text_first == buf->marker_pos) marker_reset = TRUE; gtk_xtext_remove_top (buf); lines--; } } } else { /* delete all */ if (buf->search_found) gtk_xtext_search_fini (buf); if (buf->xtext->auto_indent) buf->indent = MARGIN; buf->scrollbar_down = TRUE; buf->last_ent_start = NULL; buf->last_ent_end = NULL; buf->marker_pos = NULL; if (buf->text_first) marker_reset = TRUE; dontscroll (buf); while (buf->text_first) { next = buf->text_first->next; free (buf->text_first); buf->text_first = next; } buf->text_last = NULL; } if (buf->xtext->buffer == buf) { gtk_xtext_calc_lines (buf, TRUE); gtk_xtext_refresh (buf->xtext); } else { gtk_xtext_calc_lines (buf, FALSE); } if (marker_reset) buf->marker_state = MARKER_RESET_BY_CLEAR; } static gboolean gtk_xtext_check_ent_visibility (GtkXText * xtext, textentry *find_ent, int add) { textentry *ent; int lines; xtext_buffer *buf = xtext->buffer; int height; if (find_ent == NULL) { return FALSE; } height = gdk_window_get_height (gtk_widget_get_window (GTK_WIDGET (xtext))); ent = buf->pagetop_ent; /* If top line not completely displayed return FALSE */ if (ent == find_ent && buf->pagetop_subline > 0) { return FALSE; } /* Loop through line positions looking for find_ent */ lines = ((height + xtext->pixel_offset) / xtext->fontsize) + buf->pagetop_subline + add; while (ent) { lines -= g_slist_length (ent->sublines); if (lines <= 0) { return FALSE; } if (ent == find_ent) { return TRUE; } ent = ent->next; } return FALSE; } void gtk_xtext_check_marker_visibility (GtkXText * xtext) { if (gtk_xtext_check_ent_visibility (xtext, xtext->buffer->marker_pos, 1)) xtext->buffer->marker_seen = TRUE; } static void gtk_xtext_unstrip_color (gint start, gint end, GSList *slp, GList **gl, gint maxo) { gint off1, off2, curlen; GSList *cursl; offsets_t marks; offlen_t *meta; off1 = 0; curlen = 0; cursl = slp; while (cursl) { meta = cursl->data; if (start < meta->len) { off1 = meta->off + start; break; } curlen += meta->len; start -= meta->len; end -= meta->len; cursl = g_slist_next (cursl); } off2 = off1; while (cursl) { meta = cursl->data; if (end < meta->len) { off2 = meta->off + end; break; } curlen += meta->len; end -= meta->len; cursl = g_slist_next (cursl); } if (!cursl) { off2 = maxo; } marks.o.start = off1; marks.o.end = off2; *gl = g_list_append (*gl, GUINT_TO_POINTER (marks.u)); } /* Search a single textentry for occurrence(s) of search arg string */ static GList * gtk_xtext_search_textentry (xtext_buffer *buf, textentry *ent) { gchar *str; /* text string to be searched */ GList *gl = NULL; GSList *slp; gint lstr; if (buf->search_text == NULL) { return gl; } str = gtk_xtext_strip_color (ent->str, ent->str_len, buf->xtext->scratch_buffer, &lstr, &slp, !buf->xtext->ignore_hidden); /* Regular-expression matching --- */ if (buf->search_flags & regexp) { GMatchInfo *gmi; gint start, end; if (buf->search_re == NULL) { return gl; } g_regex_match (buf->search_re, str, 0, &gmi); while (g_match_info_matches (gmi)) { g_match_info_fetch_pos (gmi, 0, &start, &end); gtk_xtext_unstrip_color (start, end, slp, &gl, ent->str_len); g_match_info_next (gmi, NULL); } g_match_info_free (gmi); /* Non-regular-expression matching --- */ } else { gchar *hay, *pos; gint lhay, off, len; gint match = buf->search_flags & case_match; hay = match? g_strdup (str): g_utf8_casefold (str, lstr); lhay = strlen (hay); off = 0; for (pos = hay, len = lhay; len; off += buf->search_lnee, pos = hay + off, len = lhay - off) { str = g_strstr_len (pos, len, buf->search_nee); if (str == NULL) { break; } off = str - hay; gtk_xtext_unstrip_color (off, off + buf->search_lnee, slp, &gl, ent->str_len); } g_free (hay); } /* Common processing --- */ g_slist_free_full (slp, free); return gl; } /* Add a list of found search results to an entry, maybe NULL */ static void gtk_xtext_search_textentry_add (xtext_buffer *buf, textentry *ent, GList *gl, gboolean pre) { ent->marks = gl; if (gl) { buf->search_found = (pre? g_list_prepend: g_list_append) (buf->search_found, ent); if (pre == FALSE && buf->hintsearch == NULL) { buf->hintsearch = ent; } } } /* Free all search information for a textentry */ static void gtk_xtext_search_textentry_del (xtext_buffer *buf, textentry *ent) { g_list_free (ent->marks); ent->marks = NULL; if (buf->cursearch && buf->cursearch->data == ent) { buf->cursearch = NULL; buf->curmark = NULL; buf->curdata.u = 0; } if (buf->pagetop_ent == ent) { buf->pagetop_ent = NULL; } if (buf->hintsearch == ent) { buf->hintsearch = NULL; } buf->search_found = g_list_remove (buf->search_found, ent); } /* Used only by glist_foreach */ static void gtk_xtext_search_textentry_fini (gpointer entp, gpointer dummy) { textentry *ent = entp; g_list_free (ent->marks); ent->marks = NULL; } /* Free all search information for all textentrys and the xtext_buffer */ static void gtk_xtext_search_fini (xtext_buffer *buf) { g_list_foreach (buf->search_found, gtk_xtext_search_textentry_fini, 0); g_list_free (buf->search_found); buf->search_found = NULL; g_free (buf->search_text); buf->search_text = NULL; g_free (buf->search_nee); buf->search_nee = NULL; buf->search_flags = 0; buf->cursearch = NULL; buf->curmark = NULL; /* but leave buf->curdata.u alone! */ if (buf->search_re) { g_regex_unref (buf->search_re); buf->search_re = NULL; } } /* Returns TRUE if the base search information exists and is still okay to use */ static gboolean gtk_xtext_search_init (xtext_buffer *buf, const gchar *text, gtk_xtext_search_flags flags, GError **perr) { /* Of the five flags, backward and highlight_all do not need a new search */ if (buf->search_found && strcmp (buf->search_text, text) == 0 && (buf->search_flags & case_match) == (flags & case_match) && (buf->search_flags & follow) == (flags & follow) && (buf->search_flags & regexp) == (flags & regexp)) { return TRUE; } buf->hintsearch = buf->cursearch? buf->cursearch->data: NULL; gtk_xtext_search_fini (buf); buf->search_text = g_strdup (text); if (flags & regexp) { buf->search_re = g_regex_new (text, (flags & case_match)? 0: G_REGEX_CASELESS, 0, perr); if (perr && *perr) { return FALSE; } } else { if (flags & case_match) { buf->search_nee = g_strdup (text); } else { buf->search_nee = g_utf8_casefold (text, strlen (text)); } buf->search_lnee = strlen (buf->search_nee); } buf->search_flags = flags; buf->cursearch = NULL; buf->curmark = NULL; /* but leave buf->curdata.u alone! */ return FALSE; } #define BACKWARD (flags & backward) #define FIRSTLAST(lp) (BACKWARD? g_list_last(lp): g_list_first(lp)) #define NEXTPREVIOUS(lp) (BACKWARD? g_list_previous(lp): g_list_next(lp)) textentry * gtk_xtext_search (GtkXText * xtext, const gchar *text, gtk_xtext_search_flags flags, GError **perr) { textentry *ent = NULL; xtext_buffer *buf = xtext->buffer; GList *gl; if (buf->text_first == NULL) { return NULL; } /* If the text arg is NULL, one of these has been toggled: highlight follow */ if (text == NULL) /* Here on highlight or follow toggle */ { gint oldfollow = buf->search_flags & follow; gint newfollow = flags & follow; /* If "Follow" has just been checked, search possible new textentries --- */ if (newfollow && (newfollow != oldfollow)) { gl = g_list_last (buf->search_found); ent = gl? gl->data: buf->text_first; for (; ent; ent = ent->next) { GList *gl; gl = gtk_xtext_search_textentry (buf, ent); gtk_xtext_search_textentry_add (buf, ent, gl, FALSE); } } buf->search_flags = flags; ent = buf->pagetop_ent; } /* if the text arg is "", the reset button has been clicked or Control-Shift-F has been hit */ else if (text[0] == 0) /* Let a null string do a reset. */ { gtk_xtext_search_fini (buf); } /* If the text arg is neither NULL nor "", it's the search string */ else { if (gtk_xtext_search_init (buf, text, flags, perr) == FALSE) /* If a new search: */ { if (perr && *perr) { return NULL; } for (ent = buf->text_first; ent; ent = ent->next) { GList *gl; gl = gtk_xtext_search_textentry (buf, ent); gtk_xtext_search_textentry_add (buf, ent, gl, TRUE); } buf->search_found = g_list_reverse (buf->search_found); } /* Now base search results are in place. */ if (buf->search_found) { /* If we're in the midst of moving among found items */ if (buf->cursearch) { ent = buf->cursearch->data; buf->curmark = NEXTPREVIOUS (buf->curmark); if (buf->curmark == NULL) { /* We've returned all the matches for this textentry. */ buf->cursearch = NEXTPREVIOUS (buf->cursearch); if (buf->cursearch) { ent = buf->cursearch->data; buf->curmark = FIRSTLAST (ent->marks); } else /* We've returned all the matches for all textentries */ { ent = NULL; } } } /* If user changed the search, let's look starting where he was */ else if (buf->hintsearch) { GList *mark; offsets_t last, this; /* * If we already have a 'current' item from the last search, and if * the first character of an occurrence on this line for this new search * is within that former item, use the occurrence as current. */ ent = buf->hintsearch; last.u = buf->curdata.u; for (mark = ent->marks; mark; mark = mark->next) { this.u = GPOINTER_TO_UINT (mark->data); if (this.o.start >= last.o.start && this.o.start < last.o.end) break; } if (mark == NULL) { for (ent = buf->hintsearch; ent; ent = BACKWARD? ent->prev: ent->next) if (ent->marks) break; mark = ent? FIRSTLAST (ent->marks): NULL; } buf->cursearch = g_list_find (buf->search_found, ent); buf->curmark = mark; } /* This is a fresh search */ else { buf->cursearch = FIRSTLAST (buf->search_found); ent = buf->cursearch->data; buf->curmark = FIRSTLAST (ent->marks); } buf->curdata.u = (buf->curmark)? GPOINTER_TO_UINT (buf->curmark->data): 0; } } buf->hintsearch = ent; if (!gtk_xtext_check_ent_visibility (xtext, ent, 1)) { GtkAdjustment *adj = xtext->adj; float value; buf->pagetop_ent = NULL; for (value = 0, ent = buf->text_first; ent && ent != buf->hintsearch; ent = ent->next) { value += g_slist_length (ent->sublines); } if (value > adj->upper - adj->page_size) { value = adj->upper - adj->page_size; } else if ((flags & backward) && ent) { value -= adj->page_size - g_slist_length (ent->sublines); if (value < 0) { value = 0; } } gtk_adjustment_set_value (adj, value); } gtk_widget_queue_draw (GTK_WIDGET (xtext)); return buf->hintsearch; } #undef BACKWARD #undef FIRSTLAST #undef NEXTPREVIOUS static int gtk_xtext_render_page_timeout (GtkXText * xtext) { GtkAdjustment *adj = xtext->adj; xtext->add_io_tag = 0; /* less than a complete page? */ if (xtext->buffer->num_lines <= adj->page_size) { xtext->buffer->old_value = 0; adj->value = 0; gtk_xtext_render_page (xtext); } else if (xtext->buffer->scrollbar_down) { g_signal_handler_block (xtext->adj, xtext->vc_signal_tag); gtk_xtext_adjustment_set (xtext->buffer, FALSE); gtk_adjustment_set_value (adj, adj->upper - adj->page_size); g_signal_handler_unblock (xtext->adj, xtext->vc_signal_tag); xtext->buffer->old_value = adj->value; gtk_xtext_render_page (xtext); } else { gtk_xtext_adjustment_set (xtext->buffer, TRUE); if (xtext->force_render) { xtext->force_render = FALSE; gtk_xtext_render_page (xtext); } } return 0; } /* append a textentry to our linked list */ static void gtk_xtext_append_entry (xtext_buffer *buf, textentry * ent, time_t stamp) { int i; /* we don't like tabs */ i = 0; while (i < ent->str_len) { if (ent->str[i] == '\t') ent->str[i] = ' '; i++; } ent->stamp = stamp; if (stamp == 0) ent->stamp = time (0); ent->slp = NULL; ent->str_width = gtk_xtext_text_width_ent (buf->xtext, ent); ent->mark_start = -1; ent->mark_end = -1; ent->next = NULL; ent->marks = NULL; if (ent->indent < MARGIN) ent->indent = MARGIN; /* 2 pixels is the left margin */ /* append to our linked list */ if (buf->text_last) buf->text_last->next = ent; else buf->text_first = ent; ent->prev = buf->text_last; buf->text_last = ent; ent->sublines = NULL; buf->num_lines += gtk_xtext_lines_taken (buf, ent); if ((buf->marker_pos == NULL || buf->marker_seen) && (buf->xtext->buffer != buf || !gtk_window_has_toplevel_focus (GTK_WINDOW (gtk_widget_get_toplevel (GTK_WIDGET (buf->xtext)))))) { buf->marker_pos = ent; buf->marker_state = MARKER_IS_SET; dontscroll (buf); /* force scrolling off */ buf->marker_seen = FALSE; } if (buf->xtext->max_lines > 2 && buf->xtext->max_lines < buf->num_lines) { gtk_xtext_remove_top (buf); } if (buf->xtext->buffer == buf) { /* this could be improved */ if ((buf->num_lines - 1) <= buf->xtext->adj->page_size) dontscroll (buf); if (!buf->xtext->add_io_tag) { /* remove scrolling events */ if (buf->xtext->io_tag) { g_source_remove (buf->xtext->io_tag); buf->xtext->io_tag = 0; } buf->xtext->add_io_tag = g_timeout_add (REFRESH_TIMEOUT * 2, (GSourceFunc) gtk_xtext_render_page_timeout, buf->xtext); } } if (buf->scrollbar_down) { buf->old_value = buf->num_lines - buf->xtext->adj->page_size; if (buf->old_value < 0) buf->old_value = 0; } if (buf->search_flags & follow) { GList *gl; gl = gtk_xtext_search_textentry (buf, ent); gtk_xtext_search_textentry_add (buf, ent, gl, FALSE); } } /* the main two public functions */ void gtk_xtext_append_indent (xtext_buffer *buf, unsigned char *left_text, int left_len, unsigned char *right_text, int right_len, time_t stamp) { textentry *ent; unsigned char *str; int space; int tempindent; int left_width; if (left_len == -1) left_len = strlen (left_text); if (right_len == -1) right_len = strlen (right_text); if (right_len >= sizeof (buf->xtext->scratch_buffer)) right_len = sizeof (buf->xtext->scratch_buffer) - 1; if (right_text[right_len-1] == '\n') right_len--; ent = malloc (left_len + right_len + 2 + sizeof (textentry)); str = (unsigned char *) ent + sizeof (textentry); memcpy (str, left_text, left_len); str[left_len] = ' '; memcpy (str + left_len + 1, right_text, right_len); str[left_len + 1 + right_len] = 0; left_width = gtk_xtext_text_width (buf->xtext, left_text, left_len); ent->left_len = left_len; ent->str = str; ent->str_len = left_len + 1 + right_len; ent->indent = (buf->indent - left_width) - buf->xtext->space_width; if (buf->time_stamp) space = buf->xtext->stamp_width; else space = 0; /* do we need to auto adjust the separator position? */ if (buf->xtext->auto_indent && ent->indent < MARGIN + space) { tempindent = MARGIN + space + buf->xtext->space_width + left_width; if (tempindent > buf->indent) buf->indent = tempindent; if (buf->indent > buf->xtext->max_auto_indent) buf->indent = buf->xtext->max_auto_indent; gtk_xtext_fix_indent (buf); gtk_xtext_recalc_widths (buf, FALSE); ent->indent = (buf->indent - left_width) - buf->xtext->space_width; buf->xtext->force_render = TRUE; } gtk_xtext_append_entry (buf, ent, stamp); } void gtk_xtext_append (xtext_buffer *buf, unsigned char *text, int len) { textentry *ent; if (len == -1) len = strlen (text); if (text[len-1] == '\n') len--; if (len >= sizeof (buf->xtext->scratch_buffer)) len = sizeof (buf->xtext->scratch_buffer) - 1; ent = malloc (len + 1 + sizeof (textentry)); ent->str = (unsigned char *) ent + sizeof (textentry); ent->str_len = len; if (len) memcpy (ent->str, text, len); ent->str[len] = 0; ent->indent = 0; ent->left_len = -1; gtk_xtext_append_entry (buf, ent, 0); } gboolean gtk_xtext_is_empty (xtext_buffer *buf) { return buf->text_first == NULL; } int gtk_xtext_lastlog (xtext_buffer *out, xtext_buffer *search_area) { textentry *ent; int matches; GList *gl; ent = search_area->text_first; matches = 0; while (ent) { gl = gtk_xtext_search_textentry (out, ent); if (gl) { matches++; /* copy the text over */ if (search_area->xtext->auto_indent) { gtk_xtext_append_indent (out, ent->str, ent->left_len, ent->str + ent->left_len + 1, ent->str_len - ent->left_len - 1, 0); } else { gtk_xtext_append (out, ent->str, ent->str_len); } out->text_last->stamp = ent->stamp; gtk_xtext_search_textentry_add (out, out->text_last, gl, TRUE); } ent = ent->next; } out->search_found = g_list_reverse (out->search_found); return matches; } void gtk_xtext_foreach (xtext_buffer *buf, GtkXTextForeach func, void *data) { textentry *ent = buf->text_first; while (ent) { (*func) (buf->xtext, ent->str, data); ent = ent->next; } } void gtk_xtext_set_indent (GtkXText *xtext, gboolean indent) { xtext->auto_indent = indent; } void gtk_xtext_set_max_indent (GtkXText *xtext, int max_auto_indent) { xtext->max_auto_indent = max_auto_indent; } void gtk_xtext_set_max_lines (GtkXText *xtext, int max_lines) { xtext->max_lines = max_lines; } void gtk_xtext_set_show_marker (GtkXText *xtext, gboolean show_marker) { xtext->marker = show_marker; } void gtk_xtext_set_show_separator (GtkXText *xtext, gboolean show_separator) { xtext->separator = show_separator; } void gtk_xtext_set_thin_separator (GtkXText *xtext, gboolean thin_separator) { xtext->thinline = thin_separator; } void gtk_xtext_set_time_stamp (xtext_buffer *buf, gboolean time_stamp) { buf->time_stamp = time_stamp; } void gtk_xtext_set_urlcheck_function (GtkXText *xtext, int (*urlcheck_function) (GtkWidget *, char *)) { xtext->urlcheck_function = urlcheck_function; } void gtk_xtext_set_wordwrap (GtkXText *xtext, gboolean wordwrap) { xtext->wordwrap = wordwrap; } void gtk_xtext_set_marker_last (session *sess) { xtext_buffer *buf = sess->res->buffer; buf->marker_pos = buf->text_last; buf->marker_state = MARKER_IS_SET; } void gtk_xtext_reset_marker_pos (GtkXText *xtext) { if (xtext->buffer->marker_pos) { xtext->buffer->marker_pos = NULL; dontscroll (xtext->buffer); /* force scrolling off */ gtk_xtext_render_page (xtext); xtext->buffer->marker_state = MARKER_RESET_MANUALLY; } } int gtk_xtext_moveto_marker_pos (GtkXText *xtext) { gdouble value = 0; xtext_buffer *buf = xtext->buffer; textentry *ent = buf->text_first; GtkAdjustment *adj = xtext->adj; if (buf->marker_pos == NULL) return buf->marker_state; if (gtk_xtext_check_ent_visibility (xtext, buf->marker_pos, 1) == FALSE) { while (ent) { if (ent == buf->marker_pos) break; value += g_slist_length (ent->sublines); ent = ent->next; } if (value >= adj->value && value < adj->value + adj->page_size) return MARKER_IS_SET; value -= adj->page_size / 2; if (value < 0) value = 0; if (value > adj->upper - adj->page_size) value = adj->upper - adj->page_size; gtk_adjustment_set_value (adj, value); gtk_xtext_render_page (xtext); } /* If we previously lost marker position to scrollback limit -- */ if (buf->marker_pos == buf->text_first && buf->marker_state == MARKER_RESET_BY_KILL) return MARKER_RESET_BY_KILL; else return MARKER_IS_SET; } void gtk_xtext_buffer_show (GtkXText *xtext, xtext_buffer *buf, int render) { int w, h; buf->xtext = xtext; if (xtext->buffer == buf) return; /*printf("text_buffer_show: xtext=%p buffer=%p\n", xtext, buf);*/ if (xtext->add_io_tag) { g_source_remove (xtext->add_io_tag); xtext->add_io_tag = 0; } if (xtext->io_tag) { g_source_remove (xtext->io_tag); xtext->io_tag = 0; } if (!gtk_widget_get_realized (GTK_WIDGET (xtext))) gtk_widget_realize (GTK_WIDGET (xtext)); h = gdk_window_get_height (gtk_widget_get_window (GTK_WIDGET (xtext))); w = gdk_window_get_width (gtk_widget_get_window (GTK_WIDGET (xtext))); /* after a font change */ if (buf->needs_recalc) { buf->needs_recalc = FALSE; gtk_xtext_recalc_widths (buf, TRUE); } /* now change to the new buffer */ xtext->buffer = buf; dontscroll (buf); /* force scrolling off */ xtext->adj->value = buf->old_value; xtext->adj->upper = buf->num_lines; if (xtext->adj->upper == 0) xtext->adj->upper = 1; /* sanity check */ else if (xtext->adj->value > xtext->adj->upper - xtext->adj->page_size) { /*buf->pagetop_ent = NULL;*/ xtext->adj->value = xtext->adj->upper - xtext->adj->page_size; if (xtext->adj->value < 0) xtext->adj->value = 0; } if (render) { /* did the window change size since this buffer was last shown? */ if (buf->window_width != w) { buf->window_width = w; gtk_xtext_calc_lines (buf, FALSE); if (buf->scrollbar_down) gtk_adjustment_set_value (xtext->adj, xtext->adj->upper - xtext->adj->page_size); } else if (buf->window_height != h) { buf->window_height = h; buf->pagetop_ent = NULL; if (buf->scrollbar_down) xtext->adj->value = xtext->adj->upper; gtk_xtext_adjustment_set (buf, FALSE); } gtk_xtext_render_page (xtext); gtk_adjustment_changed (xtext->adj); } } xtext_buffer * gtk_xtext_buffer_new (GtkXText *xtext) { xtext_buffer *buf; buf = malloc (sizeof (xtext_buffer)); memset (buf, 0, sizeof (xtext_buffer)); buf->old_value = -1; buf->xtext = xtext; buf->scrollbar_down = TRUE; buf->indent = xtext->space_width * 2; dontscroll (buf); return buf; } void gtk_xtext_buffer_free (xtext_buffer *buf) { textentry *ent, *next; if (buf->xtext->buffer == buf) buf->xtext->buffer = buf->xtext->orig_buffer; if (buf->xtext->selection_buffer == buf) buf->xtext->selection_buffer = NULL; if (buf->search_found) { gtk_xtext_search_fini (buf); } ent = buf->text_first; while (ent) { next = ent->next; free (ent); ent = next; } free (buf); }