Replace xtext's transparency with full window transparency

Xtext's transparency barely worked on windows, didn't work on any modern
linux wm and used fake transparency.
This uses gtk's built in window opacity that works on more systems and
is real transparency.
Text area only transparency may return with a transition to cairo, if it
works on Windows.

1 files changed, 23 insertions, 689 deletions

diff --git a/src/fe-gtk/xtext.c b/src/fe-gtk/xtext.c
index f0266802..d7cbe45a 100644
--- a/src/fe-gtk/xtext.c
+++ b/src/fe-gtk/xtext.c
@@ -21,9 +21,7 @@
  *
  */
 
-#define TINT_VALUE 195				/* 195/255 of the brightness. */
 #define GDK_MULTIHEAD_SAFE
-
 #define MARGIN 2						/* dont touch. */
 #define REFRESH_TIMEOUT 20
 #define WORDWRAP_LIMIT 24
@@ -36,7 +34,7 @@
 #ifdef WIN32
 #include "../../config-win32.h"
 #else
-#include "../../config.h"			/* can define USE_XLIB here */
+#include "../../config.h"
 #endif
 
 #include "../common/hexchat.h"
@@ -111,10 +109,6 @@ 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);
-#if defined(USE_XLIB) || defined(WIN32)
-static void gtk_xtext_load_trans (GtkXText * xtext);
-static void gtk_xtext_free_trans (GtkXText * xtext);
-#endif
 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,
@@ -162,50 +156,7 @@ gtk_xtext_text_width_8bit (GtkXText *xtext, unsigned char *str, int len)
 	return width;
 }
 
-#ifdef WIN32
-
-static void
-win32_draw_bg (GtkXText *xtext, int x, int y, int width, int height)
-{
-	HDC hdc;
-	HWND hwnd;
-	HRGN rgn;
-
-	if (xtext->shaded)
-	{
-		/* xtext->pixmap is really a GdkImage, created in win32_tint() */
-		gdk_draw_image (xtext->draw_buf, xtext->bgc, (GdkImage*)xtext->pixmap,
-							 x, y, x, y, width, height);
-	} else
-	{
-		hwnd = GDK_WINDOW_HWND (xtext->draw_buf);
-		hdc = GetDC (hwnd);
-
-		rgn = CreateRectRgn (x, y, x + width, y + height);
-		SelectClipRgn (hdc, rgn);
-
-		PaintDesktop (hdc);
-
-		ReleaseDC (hwnd, hdc);
-		DeleteObject (rgn);
-	}
-}
-
-static void
-xtext_draw_bg (GtkXText *xtext, int x, int y, int width, int height)
-{
-	if (xtext->transparent)
-		win32_draw_bg (xtext, x, y, width, height);
-	else
-		gdk_draw_rectangle (xtext->draw_buf, xtext->bgc, 1, x, y, width, height);
-}
-
-#else
-
-#define xtext_draw_bg(xt,x,y,w,h) gdk_draw_rectangle(xt->draw_buf, xt->bgc, \
-																	  1,x,y,w,h);
-
-#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 ============ */
@@ -363,21 +314,13 @@ backend_draw_text (GtkXText *xtext, int dofill, GdkGC *gc, int x, int y,
 
 	if (dofill)
 	{
-#ifdef WIN32
-		if (xtext->transparent && !xtext->backcolor)
-			win32_draw_bg (xtext, x, y - xtext->font->ascent, str_width,
-								xtext->fontsize);
-		else
-#endif
-		{
-			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);
-		}
+		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;
@@ -453,7 +396,6 @@ gtk_xtext_init (GtkXText * xtext)
 	xtext->clip_x2 = 1000000;
 	xtext->clip_y = 0;
 	xtext->clip_y2 = 1000000;
-	xtext->error_function = NULL;
 	xtext->urlcheck_function = NULL;
 	xtext->color_paste = FALSE;
 	xtext->skip_border_fills = FALSE;
@@ -464,7 +406,6 @@ gtk_xtext_init (GtkXText * xtext)
 	xtext->dont_render = FALSE;
 	xtext->dont_render2 = FALSE;
 	xtext->overdraw = FALSE;
-	xtext->tint_red = xtext->tint_green = xtext->tint_blue = TINT_VALUE;
 
 	xtext->adj = (GtkAdjustment *) gtk_adjustment_new (0, 0, 1, 1, 1, 1);
 	g_object_ref (G_OBJECT (xtext->adj));
@@ -599,12 +540,7 @@ gtk_xtext_destroy (GtkObject * object)
 
 	if (xtext->pixmap)
 	{
-#if defined(USE_XLIB) || defined(WIN32)
-		if (xtext->transparent)
-			gtk_xtext_free_trans (xtext);
-		else
-#endif
-			g_object_unref (xtext->pixmap);
+		g_object_unref (xtext->pixmap);
 		xtext->pixmap = NULL;
 	}
 
@@ -769,12 +705,6 @@ gtk_xtext_realize (GtkWidget * widget)
 	/* draw directly to window */
 	xtext->draw_buf = widget->window;
 
-#if defined(USE_XLIB) || defined(WIN32)
-	if (xtext->transparent)
-	{
-		gtk_xtext_load_trans (xtext);
-	} else
-#endif
 	if (xtext->pixmap)
 	{
 		gdk_gc_set_tile (xtext->bgc, xtext->pixmap);
@@ -804,17 +734,10 @@ gtk_xtext_size_allocate (GtkWidget * widget, GtkAllocation * allocation)
 {
 	GtkXText *xtext = GTK_XTEXT (widget);
 	int height_only = FALSE;
-	int do_trans = TRUE;
 
 	if (allocation->width == xtext->buffer->window_width)
 		height_only = TRUE;
 
-	if (allocation->x == widget->allocation.x &&
-		 allocation->y == widget->allocation.y && xtext->avoid_trans)
-		do_trans = FALSE;
-
-	xtext->avoid_trans = FALSE;
-
 	widget->allocation = *allocation;
 	if (GTK_WIDGET_REALIZED (widget))
 	{
@@ -831,13 +754,6 @@ gtk_xtext_size_allocate (GtkWidget * widget, GtkAllocation * allocation)
 			xtext->buffer->pagetop_ent = NULL;
 			gtk_xtext_adjustment_set (xtext->buffer, FALSE);
 		}
-#if defined(USE_XLIB) || defined(WIN32)
-		if (do_trans && xtext->transparent && xtext->shaded)
-		{
-			gtk_xtext_free_trans (xtext);
-			gtk_xtext_load_trans (xtext);
-		}
-#endif
 		if (xtext->buffer->scrollbar_down)
 			gtk_adjustment_set_value (xtext->adj, xtext->adj->upper -
 											  xtext->adj->page_size);
@@ -1065,31 +981,6 @@ gtk_xtext_paint (GtkWidget *widget, GdkRectangle *area)
 	textentry *ent_start, *ent_end;
 	int x, y;
 
-#if defined(USE_XLIB) || defined(WIN32)
-	if (xtext->transparent)
-	{
-		gdk_window_get_origin (widget->window, &x, &y);
-		/* update transparency only if it moved */
-		if (xtext->last_win_x != x || xtext->last_win_y != y)
-		{
-			xtext->last_win_x = x;
-			xtext->last_win_y = y;
-#ifndef WIN32
-			if (xtext->shaded)
-			{
-				xtext->recycle = TRUE;
-				gtk_xtext_load_trans (xtext);
-				xtext->recycle = FALSE;
-			} else
-#endif
-			{
-				gtk_xtext_free_trans (xtext);
-				gtk_xtext_load_trans (xtext);
-			}
-		}
-	}
-#endif
-
 	if (area->x == 0 && area->y == 0 &&
 		 area->height == widget->allocation.height &&
 		 area->width == widget->allocation.width)
@@ -2595,22 +2486,17 @@ gtk_xtext_render_flush (GtkXText * xtext, int x, int y, unsigned char *str,
 			goto dounder;
 	}
 
-#ifdef WIN32
-	if (!xtext->transparent)
-#endif
+	pix = gdk_pixmap_new (xtext->draw_buf, str_width, xtext->fontsize, xtext->depth);
+	if (pix)
 	{
-		pix = gdk_pixmap_new (xtext->draw_buf, str_width, xtext->fontsize, xtext->depth);
-		if (pix)
-		{
-			dest_x = x;
-			dest_y = y - xtext->font->ascent;
+		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);
+		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;
-		}
+		x = 0;
+		y = xtext->font->ascent;
+		xtext->draw_buf = pix;
 	}
 
 	dofill = TRUE;
@@ -3149,500 +3035,6 @@ gtk_xtext_render_str (GtkXText * xtext, int y, textentry * ent,
 	return ret;
 }
 
-#ifdef USE_XLIB
-
-/* get the desktop/root window */
-
-static Window desktop_window = None;
-
-static Window
-get_desktop_window (Display *xdisplay, Window the_window)
-{
-	Atom prop, type;
-	int format;
-	unsigned long length, after;
-	unsigned char *data;
-	unsigned int nchildren;
-	Window w, root, *children, parent;
-
-	prop = XInternAtom (xdisplay, "_XROOTPMAP_ID", True);
-	if (prop == None)
-	{
-		prop = XInternAtom (xdisplay, "_XROOTCOLOR_PIXEL", True);
-		if (prop == None)
-			return None;
-	}
-
-	for (w = the_window; w; w = parent)
-	{
-		if ((XQueryTree (xdisplay, w, &root, &parent, &children,
-				&nchildren)) == False)
-			return None;
-
-		if (nchildren)
-			XFree (children);
-
-		XGetWindowProperty (xdisplay, w, prop, 0L, 1L, False,
-								  AnyPropertyType, &type, &format, &length, &after,
-								  &data);
-		if (data)
-			XFree (data);
-
-		if (type != None)
-			return (desktop_window = w);
-	}
-
-	return (desktop_window = None);
-}
-
-/* find the root window (backdrop) Pixmap */
-
-static Pixmap
-get_pixmap_prop (Display *xdisplay, Window the_window)
-{
-	Atom type;
-	int format;
-	unsigned long length, after;
-	unsigned char *data;
-	Pixmap pix = None;
-	static Atom prop = None;
-
-	if (desktop_window == None)
-		desktop_window = get_desktop_window (xdisplay, the_window);
-	if (desktop_window == None)
-		desktop_window = DefaultRootWindow (xdisplay);
-
-	if (prop == None)
-		prop = XInternAtom (xdisplay, "_XROOTPMAP_ID", True);
-	if (prop == None)
-		return None;
-
-	XGetWindowProperty (xdisplay, desktop_window, prop, 0L, 1L, False,
-							  AnyPropertyType, &type, &format, &length, &after,
-							  &data);
-	if (data)
-	{
-		if (type == XA_PIXMAP)
-			pix = *((Pixmap *) data);
-
-		XFree (data);
-	}
-
-	return pix;
-}
-
-/* slow generic routine, for the depths/bpp we don't know about */
-
-static void
-shade_ximage_generic (GdkVisual *visual, XImage *ximg, int bpl, int w, int h, int rm, int gm, int bm, int bg)
-{
-	int x, y;
-	int bgr = (256 - rm) * (bg & visual->red_mask);
-	int bgg = (256 - gm) * (bg & visual->green_mask);
-	int bgb = (256 - bm) * (bg & visual->blue_mask);
-
-	for (x = 0; x < w; x++)
-	{
-		for (y = 0; y < h; y++)
-		{
-			unsigned long pixel = XGetPixel (ximg, x, y);
-			int r, g, b;
-
-			r = rm * (pixel & visual->red_mask) + bgr;
-			g = gm * (pixel & visual->green_mask) + bgg;
-			b = bm * (pixel & visual->blue_mask) + bgb;
-
-			XPutPixel (ximg, x, y,
-							((r >> 8) & visual->red_mask) |
-							((g >> 8) & visual->green_mask) |
-							((b >> 8) & visual->blue_mask));
-		}
-	}
-}
-
-#endif
-
-/* Fast shading routine. Based on code by Willem Monsuwe <willem@stack.nl> */
-
-#define SHADE_IMAGE(bytes, type, rmask, gmask, bmask) \
-	unsigned char *ptr; \
-	int x, y; \
-	int bgr = (256 - rm) * (bg & rmask); \
-	int bgg = (256 - gm) * (bg & gmask); \
-	int bgb = (256 - bm) * (bg & bmask); \
-	ptr = (unsigned char *) data + (w * bytes); \
-	for (y = h; --y >= 0;) \
-	{ \
-		for (x = -w; x < 0; x++) \
-		{ \
-			int r, g, b; \
-			b = ((type *) ptr)[x]; \
-			r = rm * (b & rmask) + bgr; \
-			g = gm * (b & gmask) + bgg; \
-			b = bm * (b & bmask) + bgb; \
-			((type *) ptr)[x] = ((r >> 8) & rmask) \
-										| ((g >> 8) & gmask) \
-										| ((b >> 8) & bmask); \
-		} \
-		ptr += bpl; \
-    }
-
-/* RGB 15 */
-static void
-shade_ximage_15 (void *data, int bpl, int w, int h, int rm, int gm, int bm, int bg)
-{
-	SHADE_IMAGE (2, guint16, 0x7c00, 0x3e0, 0x1f);
-}
-
-/* RGB 16 */
-static void
-shade_ximage_16 (void *data, int bpl, int w, int h, int rm, int gm, int bm, int bg)
-{
-	SHADE_IMAGE (2, guint16, 0xf800, 0x7e0, 0x1f);
-}
-
-/* RGB 24 */
-static void
-shade_ximage_24 (void *data, int bpl, int w, int h, int rm, int gm, int bm, int bg)
-{
-	/* 24 has to be a special case, there's no guint24, or 24bit MOV :) */
-	unsigned char *ptr;
-	int x, y;
-	int bgr = (256 - rm) * ((bg & 0xff0000) >> 16);
-	int bgg = (256 - gm) * ((bg & 0xff00) >> 8);
-	int bgb = (256 - bm) * (bg & 0xff);
-
-	ptr = (unsigned char *) data + (w * 3);
-	for (y = h; --y >= 0;)
-	{
-		for (x = -(w * 3); x < 0; x += 3)
-		{
-			int r, g, b;
-
-#if (G_BYTE_ORDER == G_BIG_ENDIAN)
-			r = (ptr[x + 0] * rm + bgr) >> 8;
-			g = (ptr[x + 1] * gm + bgg) >> 8;
-			b = (ptr[x + 2] * bm + bgb) >> 8;
-			ptr[x + 0] = r;
-			ptr[x + 1] = g;
-			ptr[x + 2] = b;
-#else
-			r = (ptr[x + 2] * rm + bgr) >> 8;
-			g = (ptr[x + 1] * gm + bgg) >> 8;
-			b = (ptr[x + 0] * bm + bgb) >> 8;
-			ptr[x + 2] = r;
-			ptr[x + 1] = g;
-			ptr[x + 0] = b;
-#endif
-		}
-		ptr += bpl;
-	}
-}
-
-/* RGB 32 */
-static void
-shade_ximage_32 (void *data, int bpl, int w, int h, int rm, int gm, int bm, int bg)
-{
-	SHADE_IMAGE (4, guint32, 0xff0000, 0xff00, 0xff);
-}
-
-static void
-shade_image (GdkVisual *visual, void *data, int bpl, int bpp, int w, int h,
-				 int rm, int gm, int bm, int bg, int depth)
-{
-	switch (depth)
-	{
-	case 15:
-		shade_ximage_15 (data, bpl, w, h, rm, gm, bm, bg);
-		break;
-	case 16:
-		shade_ximage_16 (data, bpl, w, h, rm, gm, bm, bg);
-		break;
-	case 24:
-		if (bpp != 32)
-		{
-			shade_ximage_24 (data, bpl, w, h, rm, gm, bm, bg);
-			break;
-		}
-	case 32:
-		shade_ximage_32 (data, bpl, w, h, rm, gm, bm, bg);
-	}
-}
-
-#ifdef USE_XLIB
-
-static GdkPixmap *
-shade_pixmap (GtkXText * xtext, Pixmap p, int x, int y, int w, int h)
-{
-	unsigned int dummy, width, height, depth;
-	GdkPixmap *shaded_pix;
-	Window root;
-	Pixmap tmp;
-	XImage *ximg;
-	XGCValues gcv;
-	GC tgc;
-	Display *xdisplay = GDK_WINDOW_XDISPLAY (xtext->draw_buf);
-	XGetGeometry (xdisplay, p, &root, &dummy, &dummy, &width, &height,
-					  &dummy, &depth);
-
-	if (width < x + w || height < y + h || x < 0 || y < 0)
-	{
-		gcv.subwindow_mode = IncludeInferiors;
-		gcv.graphics_exposures = False;
-		tgc = XCreateGC (xdisplay, p, GCGraphicsExposures|GCSubwindowMode,
-							  &gcv);
-		tmp = XCreatePixmap (xdisplay, p, w, h, depth);
-		XSetTile (xdisplay, tgc, p);
-		XSetFillStyle (xdisplay, tgc, FillTiled);
-		XSetTSOrigin (xdisplay, tgc, -x, -y);
-		XFillRectangle (xdisplay, tmp, tgc, 0, 0, w, h);
-		XFreeGC (xdisplay, tgc);
-
-		ximg = XGetImage (xdisplay, tmp, 0, 0, w, h, -1, ZPixmap);
-		XFreePixmap (xdisplay, tmp);
-	} else
-	{
-		ximg = XGetImage (xdisplay, p, x, y, w, h, -1, ZPixmap);
-	}
-
-	if (!ximg)
-		return NULL;
-
-	if (depth <= 14)
-	{
-		shade_ximage_generic (gdk_drawable_get_visual (GTK_WIDGET (xtext)->window),
-									 ximg, ximg->bytes_per_line, w, h, xtext->tint_red,
-									 xtext->tint_green, xtext->tint_blue,
-									 xtext->palette[XTEXT_BG]);
-	} else
-	{
-		shade_image (gdk_drawable_get_visual (GTK_WIDGET (xtext)->window),
-						 ximg->data, ximg->bytes_per_line, ximg->bits_per_pixel,
-						 w, h, xtext->tint_red, xtext->tint_green, xtext->tint_blue,
-						 xtext->palette[XTEXT_BG], depth);
-	}
-
-	if (xtext->recycle)
-		shaded_pix = xtext->pixmap;
-	else
-	{
-		{
-			shaded_pix = gdk_pixmap_new (GTK_WIDGET (xtext)->window, w, h, depth);
-		}
-	}
-
-	XPutImage (xdisplay, GDK_WINDOW_XWINDOW (shaded_pix),
-					  GDK_GC_XGC (xtext->fgc), ximg, 0, 0, 0, 0, w, h);
-	XDestroyImage (ximg);
-
-	return shaded_pix;
-}
-
-#endif /* !USE_XLIB */
-
-/* free transparency xtext->pixmap */
-#if defined(USE_XLIB) || defined(WIN32)
-
-static void
-gtk_xtext_free_trans (GtkXText * xtext)
-{
-	if (xtext->pixmap)
-	{
-		g_object_unref (xtext->pixmap);
-		xtext->pixmap = NULL;
-	}
-}
-
-#endif
-
-#ifdef WIN32
-
-static GdkPixmap *
-win32_tint (GtkXText *xtext, GdkImage *img, int width, int height)
-{
-	guchar *pixelp;
-	int x, y;
-	GdkPixmap *pix;
-	GdkVisual *visual = gdk_drawable_get_visual (GTK_WIDGET (xtext)->window);
-	guint32 pixel;
-	int r, g, b;
-
-	if (img->depth <= 14)
-	{
-		/* slow generic routine */
-		for (y = 0; y < height; y++)
-		{
-			for (x = 0; x < width; x++)
-			{
-				if (img->depth == 1)
-				{
-					pixel = (((guchar *) img->mem)[y * img->bpl + (x >> 3)] & (1 << (7 - (x & 0x7)))) != 0;
-					goto here;
-				}
-
-				if (img->depth == 4)
-				{
-					pixelp = (guchar *) img->mem + y * img->bpl + (x >> 1);
-					if (x&1)
-					{
-						pixel = (*pixelp) & 0x0F;
-						goto here;
-					}
-
-					pixel = (*pixelp) >> 4;
-					goto here;
-				}
-
-				pixelp = (guchar *) img->mem + y * img->bpl + x * img->bpp;
-
-				switch (img->bpp)
-				{
-				case 1:
-					pixel = *pixelp; break;
-
-				/* Windows is always LSB, no need to check img->byte_order. */
-				case 2:
-					pixel = pixelp[0] | (pixelp[1] << 8); break;
-
-				case 3:
-					pixel = pixelp[0] | (pixelp[1] << 8) | (pixelp[2] << 16); break;
-
-				case 4:
-					pixel = pixelp[0] | (pixelp[1] << 8) | (pixelp[2] << 16); break;
-				}
-
-here:
-				r = (pixel & visual->red_mask) >> visual->red_shift;
-				g = (pixel & visual->green_mask) >> visual->green_shift;
-				b = (pixel & visual->blue_mask) >> visual->blue_shift;
-
-				/* actual tinting is only these 3 lines */
-				pixel = ((r * xtext->tint_red) >> 8) << visual->red_shift |
-							((g * xtext->tint_green) >> 8) << visual->green_shift |
-							((b * xtext->tint_blue) >> 8) << visual->blue_shift;
-
-				if (img->depth == 1)
-					if (pixel & 1)
-						((guchar *) img->mem)[y * img->bpl + (x >> 3)] |= (1 << (7 - (x & 0x7)));
-					else
-						((guchar *) img->mem)[y * img->bpl + (x >> 3)] &= ~(1 << (7 - (x & 0x7)));
-				else if (img->depth == 4)
-				{
-					pixelp = (guchar *) img->mem + y * img->bpl + (x >> 1);
-
-					if (x&1)
-					{
-						*pixelp &= 0xF0;
-						*pixelp |= (pixel & 0x0F);
-					} else
-					{
-						*pixelp &= 0x0F;
-						*pixelp |= (pixel << 4);
-					}
-				} else
-				{
-					pixelp = (guchar *) img->mem + y * img->bpl + x * img->bpp;
-
-					/* Windows is always LSB, no need to check img->byte_order. */
-					switch (img->bpp)
-					{
-					case 4:
-						pixelp[3] = 0;
-					case 3:
-						pixelp[2] = ((pixel >> 16) & 0xFF);
-					case 2:
-						pixelp[1] = ((pixel >> 8) & 0xFF);
-					case 1:
-						pixelp[0] = (pixel & 0xFF);
-					}
-				}
-			}
-		}
-	} else
-	{
-		shade_image (visual, img->mem, img->bpl, img->bpp, width, height,
-						 xtext->tint_red, xtext->tint_green, xtext->tint_blue,
-						 xtext->palette[XTEXT_BG], visual->depth);
-	}
-
-	/* no need to dump it to a Pixmap, it's one and the same on win32 */
-	pix = (GdkPixmap *)img;
-
-	return pix;
-}
-
-#endif /* !WIN32 */
-
-/* grab pixmap from root window and set xtext->pixmap */
-#if defined(USE_XLIB) || defined(WIN32)
-
-static void
-gtk_xtext_load_trans (GtkXText * xtext)
-{
-#ifdef WIN32
-	GdkImage *img;
-	int width, height;
-	HDC hdc;
-	HWND hwnd;
-
-	/* if not shaded, we paint directly with PaintDesktop() */
-	if (!xtext->shaded)
-		return;
-
-	hwnd = GDK_WINDOW_HWND (GTK_WIDGET (xtext)->window);
-	hdc = GetDC (hwnd);
-	PaintDesktop (hdc);
-	ReleaseDC (hwnd, hdc);
-
-	gdk_drawable_get_size (GTK_WIDGET (xtext)->window, &width, &height);
-	img = gdk_drawable_get_image (GTK_WIDGET (xtext)->window, 0, 0, width+128, height);
-	xtext->pixmap = win32_tint (xtext, img, img->width, img->height);
-
-#else
-
-	Pixmap rootpix;
-	GtkWidget *widget = GTK_WIDGET (xtext);
-	int x, y;
-
-	rootpix = get_pixmap_prop (GDK_WINDOW_XDISPLAY (widget->window), GDK_WINDOW_XWINDOW (widget->window));
-	if (rootpix == None)
-	{
-		if (xtext->error_function)
-			xtext->error_function (0);
-		xtext->transparent = FALSE;
-		return;
-	}
-
-	gdk_window_get_origin (widget->window, &x, &y);
-
-	if (xtext->shaded)
-	{
-		int width, height;
-		gdk_drawable_get_size (GTK_WIDGET (xtext)->window, &width, &height);
-		xtext->pixmap = shade_pixmap (xtext, rootpix, x, y, width+105, height);
-		if (xtext->pixmap == NULL)
-		{
-			xtext->shaded = 0;
-			goto noshade;
-		}
-		gdk_gc_set_tile (xtext->bgc, xtext->pixmap);
-		gdk_gc_set_ts_origin (xtext->bgc, 0, 0);
-		xtext->ts_x = xtext->ts_y = 0;
-	} else
-	{
-noshade:
-		xtext->pixmap = gdk_pixmap_foreign_new_for_display (gdk_drawable_get_display (GTK_WIDGET (xtext)->window), rootpix);
-		gdk_gc_set_tile (xtext->bgc, xtext->pixmap);
-		gdk_gc_set_ts_origin (xtext->bgc, -x, -y);
-		xtext->ts_x = -x;
-		xtext->ts_y = -y;
-	}
-	gdk_gc_set_fill (xtext->bgc, GDK_TILED);
-#endif /* !WIN32 */
-}
-
-#endif /* ! XLIB || WIN32 */
-
 /* walk through str until this line doesn't fit anymore */
 
 static int
@@ -4060,42 +3452,16 @@ gtk_xtext_set_font (GtkXText *xtext, char *name)
 }
 
 void
-gtk_xtext_set_background (GtkXText * xtext, GdkPixmap * pixmap, gboolean trans)
+gtk_xtext_set_background (GtkXText * xtext, GdkPixmap * pixmap)
 {
 	GdkGCValues val;
-	gboolean shaded = FALSE;
-
-	if (trans && (xtext->tint_red != 255 || xtext->tint_green != 255 || xtext->tint_blue != 255))
-		shaded = TRUE;
-
-#if !defined(USE_XLIB) && !defined(WIN32)
-	shaded = FALSE;
-	trans = FALSE;
-#endif
 
 	if (xtext->pixmap)
 	{
-#if defined(USE_XLIB) || defined(WIN32)
-		if (xtext->transparent)
-			gtk_xtext_free_trans (xtext);
-		else
-#endif
-			g_object_unref (xtext->pixmap);
+		g_object_unref (xtext->pixmap);
 		xtext->pixmap = NULL;
 	}
 
-	xtext->transparent = trans;
-
-#if defined(USE_XLIB) || defined(WIN32)
-	if (trans)
-	{
-		xtext->shaded = shaded;
-		if (GTK_WIDGET_REALIZED (xtext))
-			gtk_xtext_load_trans (xtext);
-		return;
-	}
-#endif
-
 	dontscroll (xtext->buffer);
 	xtext->pixmap = pixmap;
 
@@ -4390,11 +3756,7 @@ gtk_xtext_render_page (GtkXText * xtext)
 	overlap = xtext->buffer->last_pixel_pos - pos;
 	xtext->buffer->last_pixel_pos = pos;
 
-#ifdef WIN32
-	if (!xtext->transparent && !xtext->pixmap && abs (overlap) < height)
-#else
-	if (!xtext->pixmap && abs (overlap) < height)
-#endif
+	if (abs (overlap) < height)
 	{
 		/* so the obscured regions are exposed */
 		gdk_gc_set_exposures (xtext->fgc, TRUE);
@@ -4454,17 +3816,10 @@ gtk_xtext_render_page (GtkXText * xtext)
 }
 
 void
-gtk_xtext_refresh (GtkXText * xtext, int do_trans)
+gtk_xtext_refresh (GtkXText * xtext)
 {
 	if (GTK_WIDGET_REALIZED (GTK_WIDGET (xtext)))
 	{
-#if defined(USE_XLIB) || defined(WIN32)
-		if (xtext->transparent && do_trans)
-		{
-			gtk_xtext_free_trans (xtext);
-			gtk_xtext_load_trans (xtext);
-		}
-#endif
 		gtk_xtext_render_page (xtext);
 	}
 }
@@ -4638,7 +3993,7 @@ gtk_xtext_clear (xtext_buffer *buf, int lines)
 	if (buf->xtext->buffer == buf)
 	{
 		gtk_xtext_calc_lines (buf, TRUE);
-		gtk_xtext_refresh (buf->xtext, 0);
+		gtk_xtext_refresh (buf->xtext);
 	} else
 	{
 		gtk_xtext_calc_lines (buf, FALSE);
@@ -5362,12 +4717,6 @@ gtk_xtext_foreach (xtext_buffer *buf, GtkXTextForeach func, void *data)
 }
 
 void
-gtk_xtext_set_error_function (GtkXText *xtext, void (*error_function) (int))
-{
-	xtext->error_function = error_function;
-}
-
-void
 gtk_xtext_set_indent (GtkXText *xtext, gboolean indent)
 {
 	xtext->auto_indent = indent;
@@ -5410,17 +4759,6 @@ gtk_xtext_set_time_stamp (xtext_buffer *buf, gboolean time_stamp)
 }
 
 void
-gtk_xtext_set_tint (GtkXText *xtext, int tint_red, int tint_green, int tint_blue)
-{
-	xtext->tint_red = tint_red;
-	xtext->tint_green = tint_green;
-	xtext->tint_blue = tint_blue;
-
-	/*if (xtext->tint_red != 255 || xtext->tint_green != 255 || xtext->tint_blue != 255)
-		shaded = TRUE;*/
-}
-
-void
 gtk_xtext_set_urlcheck_function (GtkXText *xtext, int (*urlcheck_function) (GtkWidget *, char *))
 {
 	xtext->urlcheck_function = urlcheck_function;
@@ -5512,10 +4850,6 @@ gtk_xtext_buffer_show (GtkXText *xtext, xtext_buffer *buf, int render)
 
 		gtk_xtext_render_page (xtext);
 		gtk_adjustment_changed (xtext->adj);
-	} else
-	{
-		/* avoid redoing the transparency */
-		xtext->avoid_trans = TRUE;
 	}
 }