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https://github.com/mapmapteam/mapmap.git
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Tats
118 lines
2.8 KiB
C++
118 lines
2.8 KiB
C++
/*
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* MapperGLCanvas.cpp
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*
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* (c) 2013 Sofian Audry -- info(@)sofianaudry(.)com
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "MapperGLCanvas.h"
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wxGLContext* MapperGLCanvas::sharedContext = 0;
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BEGIN_EVENT_TABLE (MapperGLCanvas, wxGLCanvas)
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EVT_PAINT (MapperGLCanvas::Paintit)
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EVT_KEY_DOWN (MapperGLCanvas::OnChar)
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EVT_MOUSE_EVENTS(MapperGLCanvas::OnMouseEvent)
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// EVT_ENTER_WINDOW(MapperGLCanvas::OnMouseEnter)
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END_EVENT_TABLE()
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MapperGLCanvas::MapperGLCanvas(wxFrame *parent) :
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wxGLCanvas(parent, sharedContext, wxID_ANY, wxDefaultPosition, wxDefaultSize, 0,
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wxT("GLCanvas")) {
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if (!sharedContext) {
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sharedContext = GetContext();
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}
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// int argc = 1;
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// char* argv[1] = { wxString((wxTheApp ->argv)[0]).char_str() };
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}
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void MapperGLCanvas::Paintit(wxPaintEvent& WXUNUSED(event)) {
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Render();
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}
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void MapperGLCanvas::OnChar(wxKeyEvent & event) {
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static int current = 0;
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int xMove = 0;
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int yMove = 0;
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switch (event.GetKeyCode()) {
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case WXK_TAB:
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current = (current + 1) % 4;
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break;
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case WXK_UP:
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yMove = +1;
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break;
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case WXK_DOWN:
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yMove = -1;
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break;
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case WXK_LEFT:
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xMove = -1;
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break;
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case WXK_RIGHT:
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xMove = +1;
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break;
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default:
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printf("Unhandled key");
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break;
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}
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Quad& quad = getQuad();
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Point p = quad.getVertex(current);
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p.x += xMove;
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p.y += yMove;
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quad.setVertex(current, p);
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Render();
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}
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void MapperGLCanvas::OnMouseEvent(wxMouseEvent& event) {
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printf("x=%d y=%d LeftIsDown=%d\n", event.GetX(), event.GetY(),
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(int) event.LeftIsDown());
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SetFocus();
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}
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void MapperGLCanvas::Render() {
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if (!sharedContext) {
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sharedContext = GetContext();
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}
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SetCurrent(*sharedContext);
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wxPaintDC dc(this);
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enterRender();
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doRender();
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exitRender();
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}
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void MapperGLCanvas::enterRender() {
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float ratio = (float) GetSize().x / (float) GetSize().y;
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glClearColor(0, 0, 0, 0);
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glClear (GL_COLOR_BUFFER_BIT);
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// glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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glViewport(0, 0, (GLint) GetSize().x, (GLint) GetSize().y);
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glMatrixMode (GL_PROJECTION);
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glLoadIdentity();
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glOrtho(-ratio, ratio, -1.f, 1.f, 1.f, -1.f);
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glMatrixMode (GL_MODELVIEW);
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}
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void MapperGLCanvas::exitRender() {
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glFlush();
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SwapBuffers();
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}
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