diff options
Diffstat (limited to 'lib/wx/examples/demo/ex_gl.erl')
| -rw-r--r-- | lib/wx/examples/demo/ex_gl.erl | 46 |
1 files changed, 31 insertions, 15 deletions
diff --git a/lib/wx/examples/demo/ex_gl.erl b/lib/wx/examples/demo/ex_gl.erl index 0e656071b3..6bb2d12dff 100644 --- a/lib/wx/examples/demo/ex_gl.erl +++ b/lib/wx/examples/demo/ex_gl.erl @@ -20,7 +20,8 @@ -behaviour(wx_object). --export([init/1, code_change/3, handle_info/2, handle_event/2, +-export([init/1, code_change/3, handle_info/2, + handle_sync_event/3, handle_event/2, handle_call/3, handle_cast/2, terminate/2, start/1]). @@ -34,6 +35,7 @@ config, gl, canvas, + image, timer, time }). @@ -58,7 +60,7 @@ do_init(Config) -> %% Setup sizer Sizer = wxStaticBoxSizer:new(?wxHORIZONTAL, Panel, [{label, "wxGLCanvas"}]), - Opts = [{size, {300,300}}, {style, ?wxSUNKEN_BORDER}], + Opts = [{style, ?wxFULL_REPAINT_ON_RESIZE}], GLAttrib = [{attribList, [?WX_GL_RGBA, ?WX_GL_DOUBLEBUFFER, ?WX_GL_MIN_RED,8, @@ -67,34 +69,48 @@ do_init(Config) -> ?WX_GL_DEPTH_SIZE,24,0]}], Canvas = wxGLCanvas:new(Panel,Opts ++ GLAttrib), wxGLCanvas:connect(Canvas, size), - %% Demo window is already shown so we can setCurrent directly - wxGLCanvas:setCurrent(Canvas), + wxGLCanvas:connect(Canvas, paint, [callback]), + Image = wxImage:scale(wxImage:new("image.jpg"), 128,128), - GL = setup_gl(Canvas,Image), - Timer = timer:send_interval(20, self(), update), %% Add to sizers wxSizer:add(Sizer, Canvas, [{flag, ?wxEXPAND},{proportion, 1}]), wxWindow:setSizer(Panel,Sizer), wxSizer:layout(Sizer), + Timer = timer:send_interval(20, self(), update), {Panel, #state{parent = Panel, config = Config, - canvas = Canvas, - gl = GL, timer = Timer}}. + canvas = Canvas, image=Image, + timer = Timer}}. %% Event handling -handle_event(#wx{event = #wxSize{size = {W,H}}}, State) -> - case W =:= 0 orelse H =:= 0 of - true -> skip; - _ -> +handle_sync_event(_PaintEvent, _, #state{canvas=Canvas}) -> + %% Sync events are called from a temporary process, + %% we need to setup the gl canvas on cocoa for some reason + %% We do not really have to do anything, the timer event will refresh the painting + wxGLCanvas:setCurrent(Canvas), + DC= wxPaintDC:new(Canvas), + wxPaintDC:destroy(DC), + ok. + +handle_event(#wx{event = #wxSize{size = {W,H}}}, State = #state{gl=GL}) -> + if + GL =:= undefined -> + #state{canvas=Canvas, image=Image} = State, + wxGLCanvas:setCurrent(Canvas), + {noreply, State#state{gl=setup_gl(Canvas,Image)}}; + W =:= 0, H =:= 0 -> {noreply, State}; + true -> gl:viewport(0,0,W,H), gl:matrixMode(?GL_PROJECTION), gl:loadIdentity(), gl:ortho( -2.0, 2.0, -2.0*H/W, 2.0*H/W, -20.0, 20.0), gl:matrixMode(?GL_MODELVIEW), - gl:loadIdentity() - end, - {noreply, State}. + gl:loadIdentity(), + {noreply, State} + end. +handle_info(update, State=#state{gl=undefined}) -> + {noreply, State}; handle_info(update, State) -> S1 = update_rotation(State), GL = S1#state.gl, |