[Redbutton-devel] SF.net SVN: redbutton: [126] redbutton-browser/trunk

[<ski...@us...>]

Revision: 126
Author:   skilvington
Date:     2006-06-28 09:27:17 -0700 (Wed, 28 Jun 2006)
ViewCVS:  http://svn.sourceforge.net/redbutton/?rev=126&view=rev

Log Message:
-----------
add a mechanism for setting a clip rectangle on the overlay

Modified Paths:
--------------
    redbutton-browser/trunk/MHEGDisplay.c
    redbutton-browser/trunk/MHEGDisplay.h
Modified: redbutton-browser/trunk/MHEGDisplay.c
===================================================================
--- redbutton-browser/trunk/MHEGDisplay.c	2006-06-27 16:21:54 UTC (rev 125)
+++ redbutton-browser/trunk/MHEGDisplay.c	2006-06-28 16:27:17 UTC (rev 126)
@@ -383,7 +383,42 @@
 }
 
 /*
+ * set the clip rectangle for all subsequent drawing on the overlay
  * coords should be in the range 0-MHEG_XRES, 0-MHEG_YRES
+ */
+
+void
+MHEGDisplay_setClipRectangle(MHEGDisplay *d, XYPosition *pos, OriginalBoxSize *box)
+{
+	XRectangle clip;
+
+	/* scale if fullscreen */
+	clip.x = (pos->x_position * d->xres) / MHEG_XRES;
+	clip.y = (pos->y_position * d->yres) / MHEG_YRES;
+	clip.width = (box->x_length * d->xres) / MHEG_XRES;
+	clip.height = (box->y_length * d->yres) / MHEG_YRES;
+
+/* TODO */
+/* this will effect the XRenderComposite() call in _refresh() */
+	XRenderSetPictureClipRectangles(d->dpy, d->overlay_pic, 0, 0, &clip, 1);
+
+	return;
+}
+
+/*
+ * remove the clip rectangle from the overlay
+ */
+
+void
+MHEGDisplay_unsetClipRectangle(MHEGDisplay *d)
+{
+	XRenderSetPictureClipRectangles(d->dpy, d->overlay_pic, 0, 0, NULL, 0);
+
+	return;
+}
+
+/*
+ * coords should be in the range 0-MHEG_XRES, 0-MHEG_YRES
  * width is the line width in pixels
  * style should be LineStyle_solid/dashed/dotted
  */

Modified: redbutton-browser/trunk/MHEGDisplay.h
===================================================================
--- redbutton-browser/trunk/MHEGDisplay.h	2006-06-27 16:21:54 UTC (rev 125)
+++ redbutton-browser/trunk/MHEGDisplay.h	2006-06-28 16:27:17 UTC (rev 126)
@@ -60,6 +60,8 @@
 void MHEGDisplay_refresh(MHEGDisplay *, XYPosition *, OriginalBoxSize *);
 
 /* drawing routines */
+void MHEGDisplay_setClipRectangle(MHEGDisplay *, XYPosition *, OriginalBoxSize *);
+void MHEGDisplay_unsetClipRectangle(MHEGDisplay *);
 void MHEGDisplay_drawHoriLine(MHEGDisplay *, XYPosition *, unsigned int, int, int, MHEGColour *);
 void MHEGDisplay_drawVertLine(MHEGDisplay *, XYPosition *, unsigned int, int, int, MHEGColour *);
 void MHEGDisplay_fillTransparentRectangle(MHEGDisplay *, XYPosition *, OriginalBoxSize *);


This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.