WINGs: add functions to set widget background image

With this patch we can set widget background image.
As now, only background color was available.

WINGs/WINGs/WINGs.h

@@ -930,6 +930,10 @@ void WMSetWidgetBackgroundColor(WMWidget *w, WMColor *color);
 
 WMColor* WMGetWidgetBackgroundColor(WMWidget *w);
 
+void WMSetWidgetBackgroundPixmap(WMWidget *w, WMPixmap *pix);
+
+WMPixmap *WMGetWidgetBackgroundPixmap(WMWidget *w);
+
 void WMMapSubwidgets(WMWidget *w);
 
 void WMUnmapSubwidgets(WMWidget *w);

WINGs/WINGs/WINGsP.h

@@ -572,6 +572,8 @@ struct W_View {
     void *hangedData;                  /* data holder for user program */
 
     WMColor *backColor;
+    WMPixmap *backImage;
+
 
     Cursor cursor;
 
@@ -664,6 +666,8 @@ void W_ResizeView(W_View *view, unsigned int width, unsigned int height);
 
 void W_SetViewBackgroundColor(W_View *view, WMColor *color);
 
+void W_SetViewBackgroundPixmap(W_View *view, WMPixmap *pix);
+
 void W_SetViewCursor(W_View *view, Cursor cursor);
 
 void W_SetFocusOfTopLevel(W_View *toplevel, W_View *view);

WINGs/widgets.c

@@ -960,6 +960,21 @@ WMColor *WMGetWidgetBackgroundColor(WMWidget * w)
 	return W_VIEW(w)->backColor;
 }
 
+void WMSetWidgetBackgroundPixmap(WMWidget *w, WMPixmap *pix)
+{
+	if (!pix)
+		return;
+
+	W_SetViewBackgroundPixmap(W_VIEW(w), pix);
+	if (W_VIEW(w)->flags.mapped)
+		WMRedisplayWidget(w);
+}
+
+WMPixmap *WMGetWidgetBackgroundPixmap(WMWidget *w)
+{
+	return W_VIEW(w)->backImage;
+}
+
 void WMRaiseWidget(WMWidget * w)
 {
 	W_RaiseView(W_VIEW(w));

WINGs/wmisc.c

@@ -220,12 +220,20 @@ W_PaintTextAndImage(W_View * view, int wrap, WMColor * textColor, W_Font * font,
 		XFillRectangle(screen->display, d, WMColorGC(backColor),
 			       0, 0, view->size.width, view->size.height);
 	} else {
+		if (view->attribs.background_pixmap) {
 #ifndef DOUBLE_BUFFER
-		XClearWindow(screen->display, d);
+			XClearWindow(screen->display, d);
 #else
-		XSetForeground(screen->display, screen->copyGC, view->attribs.background_pixel);
+			XCopyArea(screen->display, view->attribs.background_pixmap, d, screen->copyGC, 0, 0, view->size.width, view->size.height, 0, 0);
-		XFillRectangle(screen->display, d, screen->copyGC, 0, 0, view->size.width, view->size.height);
 #endif
+		} else {
+#ifndef DOUBLE_BUFFER
+			XClearWindow(screen->display, d);
+#else
+			XSetForeground(screen->display, screen->copyGC, view->attribs.background_pixel);
+			XFillRectangle(screen->display, d, screen->copyGC, 0, 0, view->size.width, view->size.height);
+#endif
+		}
 	}
 
 	if (relief == WRFlat) {

WINGs/wview.c

@@ -100,7 +100,8 @@ static W_View *createView(W_Screen * screen, W_View * parent)
 		view->attribFlags = CWEventMask | CWBitGravity;
 		view->attribs = defAtts;
 
-		view->attribFlags |= CWBackPixel | CWColormap | CWBorderPixel;
+                view->attribFlags |= CWBackPixel | CWColormap | CWBorderPixel | CWBackPixmap;
+                view->attribs.background_pixmap = None;
 		view->attribs.background_pixel = W_PIXEL(screen->gray);
 		view->attribs.border_pixel = W_PIXEL(screen->black);
 		view->attribs.colormap = screen->colormap;
@@ -496,6 +497,20 @@ void W_SetViewBackgroundColor(W_View * view, WMColor * color)
 	}
 }
 
+void W_SetViewBackgroundPixmap(W_View *view, WMPixmap *pix)
+{
+       if (view->backImage)
+               WMReleasePixmap(view->backImage);
+       view->backImage = WMRetainPixmap(pix);
+
+       view->attribFlags |= CWBackPixmap;
+       view->attribs.background_pixmap = pix->pixmap;
+       if (view->flags.realized) {
+               XSetWindowBackgroundPixmap(view->screen->display, view->window, pix->pixmap);
+               XClearWindow(view->screen->display, view->window);
+       }
+}
+
 void W_SetViewCursor(W_View * view, Cursor cursor)
 {
 	view->cursor = cursor;