From d577d991b97ae2b5ee1af23641bcffc3f83af5b2 Mon Sep 17 00:00:00 2001
From: Pixel <pixel@nobis-crew.org>
Date: Wed, 4 Nov 2009 11:56:41 -0800
Subject: Initial import. Contains the im, cd and iup librairies, and a
 "working" Makefile for them under linux.

---
 iup/test/canvas_cddbuffer.c | 124 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 124 insertions(+)
 create mode 100755 iup/test/canvas_cddbuffer.c

(limited to 'iup/test/canvas_cddbuffer.c')

diff --git a/iup/test/canvas_cddbuffer.c b/iup/test/canvas_cddbuffer.c
new file mode 100755
index 0000000..dd7ce3e
--- /dev/null
+++ b/iup/test/canvas_cddbuffer.c
@@ -0,0 +1,124 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include "iup.h"
+#include "cd.h"
+#include "cdiup.h"
+#include "cddbuf.h"
+
+
+static void appUpdateRender(cdCanvas *cddbuffer)
+{
+  int width, height;
+
+  cdCanvasBackground(cddbuffer, CD_WHITE);
+  cdCanvasClear(cddbuffer);
+
+  cdCanvasForeground(cddbuffer, CD_RED);
+  cdCanvasGetSize(cddbuffer, &width, &height, NULL, NULL);
+  cdCanvasLine(cddbuffer, 0, 0, width-1, height-1);
+  cdCanvasLine(cddbuffer, 0, height-1, width-1, 0);
+}
+
+static int redraw_cb(Ihandle *ih)
+{
+  cdCanvas *cddbuffer = (cdCanvas*)IupGetAttribute(ih, "_APP_CDDBUFFER");
+  if (!cddbuffer)
+    return IUP_DEFAULT;
+
+  /* update display */
+  cdCanvasFlush(cddbuffer);
+  return IUP_DEFAULT;
+}
+
+static int resize_cb(Ihandle *ih)
+{
+  cdCanvas *cddbuffer = (cdCanvas*)IupGetAttribute(ih, "_APP_CDDBUFFER");
+  if (!cddbuffer)
+  {
+    cdCanvas *cdcanvas = (cdCanvas*)IupGetAttribute(ih, "_APP_CDCANVAS");
+
+    /* update canvas size */
+    cdCanvasActivate(cdcanvas);
+
+    /* this can fail if canvas size is zero */
+    cddbuffer = cdCreateCanvas(CD_DBUFFER, cdcanvas);
+  }
+
+  if (!cddbuffer)
+    return IUP_DEFAULT;
+
+  /* update size */
+  cdCanvasActivate(cddbuffer);
+
+  /* update render */
+  appUpdateRender(cddbuffer);
+
+  return IUP_DEFAULT;
+}
+
+static int map_cb(Ihandle *ih)
+{
+  cdCanvas *cddbuffer, *cdcanvas;
+
+  cdcanvas = cdCreateCanvas(CD_IUP, ih);
+  if (!cdcanvas)
+    return IUP_DEFAULT;
+
+  /* this can fail if canvas size is zero */
+  cddbuffer = cdCreateCanvas(CD_DBUFFER, cdcanvas);
+
+  IupSetAttribute(ih, "_APP_CDCANVAS", (char*)cdcanvas);
+  IupSetAttribute(ih, "_APP_CDDBUFFER", (char*)cddbuffer);
+
+  return IUP_DEFAULT;
+}
+
+static int unmap_cb(Ihandle *ih)
+{
+  cdCanvas *cddbuffer = (cdCanvas*)IupGetAttribute(ih, "_APP_CDDBUFFER");
+  cdCanvas *cdcanvas = (cdCanvas*)IupGetAttribute(ih, "_APP_CDCANVAS");
+
+  if (cddbuffer)
+    cdKillCanvas(cddbuffer);
+
+  if (cdcanvas)
+    cdKillCanvas(cdcanvas);
+
+  return IUP_DEFAULT;
+}
+
+void CanvasCDDBufferTest(void)
+{
+  Ihandle *dlg, *canvas;
+
+  canvas = IupCanvas(NULL);
+  IupSetAttribute(canvas, "RASTERSIZE", "300x200"); /* initial size */
+
+  IupSetCallback(canvas, "RESIZE_CB",  (Icallback)resize_cb);
+  IupSetCallback(canvas, "ACTION",  (Icallback)redraw_cb);
+  IupSetCallback(canvas, "MAP_CB",  (Icallback)map_cb);
+  IupSetCallback(canvas, "UNMAP_CB",  (Icallback)unmap_cb);
+                   
+  dlg = IupDialog(canvas);
+  IupSetAttribute(dlg, "TITLE", "CD Double Buffer Test");
+
+  IupMap(dlg);
+  IupSetAttribute(canvas, "RASTERSIZE", NULL);  /* release the minimum limitation */
+ 
+  IupShowXY(dlg,IUP_CENTER,IUP_CENTER);
+}
+
+#ifndef BIG_TEST
+int main(int argc, char* argv[])
+{
+  IupOpen(&argc, &argv);
+
+  CanvasCDDBufferTest();
+
+  IupMainLoop();
+
+  IupClose();
+
+  return EXIT_SUCCESS;
+}
+#endif
-- 
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