From c0c5aace2f50f970ee0d4881c57c3b317824d98c Mon Sep 17 00:00:00 2001
From: dscho <dscho>
Date: Wed, 21 Jan 2004 01:19:11 +0000
Subject: add a simple example how to use rfbDoCopyRect

---
 examples/copyrecttest.c | 50 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 examples/copyrecttest.c

(limited to 'examples/copyrecttest.c')

diff --git a/examples/copyrecttest.c b/examples/copyrecttest.c
new file mode 100644
index 0000000..8186e8e
--- /dev/null
+++ b/examples/copyrecttest.c
@@ -0,0 +1,50 @@
+#include <rfb/rfb.h>
+#include <math.h>
+
+void initBackground(rfbScreenInfoPtr server)
+{
+  unsigned int i,j;
+
+  for(i=0;i<server->width;i++)
+    for(j=0;j<server->height;j++) {
+      server->frameBuffer[(j*server->width+i)*4+0]=i&0xff;
+      server->frameBuffer[(j*server->width+i)*4+1]=j&0xff;
+      server->frameBuffer[(j*server->width+i)*4+2]=(i*j)&0xff;
+    }
+}
+
+int main(int argc,char** argv)
+{             
+  int width=400,height=300,w=20,x,y;
+  double r,phi;
+  
+  rfbScreenInfoPtr server=rfbGetScreen(&argc,argv,width,height,8,3,4);
+  server->frameBuffer=malloc(width*height*4);
+  initBackground(server);
+  server->rfbDeferUpdateTime=0;
+  rfbInitServer(server);
+
+  r=0;
+  while(1) {
+    if(r<=0) {
+      initBackground(server);
+      rfbMarkRectAsModified(server,0,0,width,height);
+      r=0.43;
+      phi=0;
+    } else {
+      r-=0.0001;
+      phi+=0.02;
+      if(phi>2*M_PI)
+	phi-=2*M_PI;
+    }
+    x=width*(0.5+cos(phi)*r);
+    y=height*(0.5+sin(phi)*r);
+    if(x>=0 && y>=0 && x+w<=width && y+w<=height) {
+      unsigned int dx=width*0.5*(1-cos(phi)*r)-x,
+      		dy=height*0.5*(1-sin(phi)*r)-y;
+      rfbDoCopyRect(server,x,y,x+w,y+w,-dx,-dy);
+    }
+    rfbProcessEvents(server,50000);
+  }
+  return(0);
+}
-- 
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