diff options
| author | Behdad Esfahbod <behdad@behdad.org> | 2012-04-04 02:34:35 -0400 |
|---|---|---|
| committer | Behdad Esfahbod <behdad@behdad.org> | 2012-04-04 02:34:35 -0400 |
| commit | 92e2a651b4ad1d7434f16c45fd00596320653e2f (patch) | |
| tree | 6d9f4bc35821dc4e6345d62e0d0d2c16eb6c8849 /src/library_glut.js | |
| parent | 0013b799fa7d1737343f133c7a4581dec4a311f6 (diff) | |
Fix GLUT mouse events position to be relative to canvas
Diffstat (limited to 'src/library_glut.js')
| -rw-r--r-- | src/library_glut.js | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/src/library_glut.js b/src/library_glut.js index 13163c23..84d800a9 100644 --- a/src/library_glut.js +++ b/src/library_glut.js @@ -16,6 +16,12 @@ var LibraryGLUT = { buttons: 0, modifiers: 0, + savePosition: function(event) { + /* TODO maybe loop here ala http://www.quirksmode.org/js/findpos.html */ + GLUT.lastX = event['clientX'] - Module['canvas'].offsetLeft; + GLUT.lastY = event['clientY'] - Module['canvas'].offsetTop; + }, + saveModifiers: function(event) { GLUT.modifiers = 0; if (event['shiftKey']) @@ -27,8 +33,7 @@ var LibraryGLUT = { }, onMousemove: function(event) { - GLUT.lastX = event['clientX']; - GLUT.lastY = event['clientY']; + GLUT.savePosition(event); if (GLUT.buttons == 0 && GLUT.passiveMotionFunc) { event.preventDefault(); GLUT.saveModifiers(event); @@ -149,8 +154,7 @@ var LibraryGLUT = { }, onMouseButtonDown: function(event){ - GLUT.lastX = event['clientX']; - GLUT.lastY = event['clientY']; + GLUT.savePosition(event); GLUT.buttons |= (1 << event['button']); if(GLUT.mouseFunc){ @@ -161,8 +165,7 @@ var LibraryGLUT = { }, onMouseButtonUp: function(event){ - GLUT.lastX = event['clientX']; - GLUT.lastY = event['clientY']; + GLUT.savePosition(event); GLUT.buttons &= ~(1 << event['button']); if(GLUT.mouseFunc) { |