Revision: 6746
http://playerstage.svn.sourceforge.net/playerstage/?rev=6746&view=rev
Author: alexcb
Date: 2008-07-02 17:27:06 -0700 (Wed, 02 Jul 2008)
Log Message:
-----------
reset camera now centers world and scales to display everything
Modified Paths:
--------------
code/stage/trunk/libstage/canvas.cc
code/stage/trunk/libstage/stage.hh
Modified: code/stage/trunk/libstage/canvas.cc
===================================================================
--- code/stage/trunk/libstage/canvas.cc 2008-07-03 00:02:27 UTC (rev 6745)
+++ code/stage/trunk/libstage/canvas.cc 2008-07-03 00:27:06 UTC (rev 6746)
@@ -365,9 +365,7 @@
camera.resetAngle();
//invalidate();
if( Fl::event_state( FL_CTRL ) ) {
- //do a complete reset
- camera.setPose( 0.0, 0.0 );
- camera.setScale( 10.0 );
+ resetCamera();
}
redraw();
break;
@@ -478,6 +476,36 @@
LISTMETHOD( world->StgWorld::children, StgModel*, DrawBlocksTree );
}
+void StgCanvas::resetCamera()
+{
+ float max_x = 0, max_y = 0, min_x = 0, min_y = 0;
+
+ //TODO take orrientation ( `a' ) and geom.pose offset into consideration
+ for( GList* it=world->StgWorld::children; it; it=it->next ) {
+ StgModel* ptr = (StgModel*) it->data;
+ stg_pose_t pose = ptr->GetPose();
+ stg_geom_t geom = ptr->GetGeom();
+
+ float tmp_min_x = pose.x - geom.size.x / 2.0;
+ float tmp_max_x = pose.x + geom.size.x / 2.0;
+ float tmp_min_y = pose.y - geom.size.y / 2.0;
+ float tmp_max_y = pose.y + geom.size.y / 2.0;
+
+ if( tmp_min_x < min_x ) min_x = tmp_min_x;
+ if( tmp_max_x > max_x ) max_x = tmp_max_x;
+ if( tmp_min_y < min_y ) min_y = tmp_min_y;
+ if( tmp_max_y > max_y ) max_y = tmp_max_y;
+ }
+
+ //do a complete reset
+ float x = ( min_x + max_x ) / 2.0;
+ float y = ( min_y + max_y ) / 2.0;
+ camera.setPose( x, y );
+ float scale_x = w() / (max_x - min_x) * 0.9;
+ float scale_y = h() / (max_y - min_y) * 0.9;
+ camera.setScale( scale_x < scale_y ? scale_x : scale_y );
+}
+
void StgCanvas::renderFrame()
{
//before drawing, order all models based on distance from camera
Modified: code/stage/trunk/libstage/stage.hh
===================================================================
--- code/stage/trunk/libstage/stage.hh 2008-07-03 00:02:27 UTC (rev 6745)
+++ code/stage/trunk/libstage/stage.hh 2008-07-03 00:27:06 UTC (rev 6746)
@@ -1966,6 +1966,7 @@
void FixViewport(int W,int H);
void DrawFloor(); //simpler floor compared to grid
void DrawBlocks();
+ void resetCamera();
virtual void renderFrame();
virtual void draw();
virtual int handle( int event );
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