qt/displist/window.cpp

   1 #include <iostream>
   2 #include <QtGui>
   3 #include <QKeyEvent>
   4
   5 #include "myglwidget.h"
   6 #include "window.h"
   7
   8 Window::Window()
   9 {
  10     std::cout << "Window() contructor\n";
  11
  12     // Set parent's window minimum dimensions
  13     this->setMinimumHeight(300);
  14     this->setMinimumWidth(300);
  15
  16     // Construct and display opengl widget
  17     // Widgets are invisible by default
  18     myglWidget = new MyGLWidget(this);
  19     myglWidget->show();
  20
  21     // Connect signals here
  22     connect(this, SIGNAL(windowResized(QResizeEvent *)),
  23             myglWidget, SLOT(resizeWidget(QResizeEvent *)));
  24     connect(this, SIGNAL(verticesChanged(int )),
  25             myglWidget, SLOT(setNumOfVertices(int )));
  26 }
  27
  28 void Window::resizeEvent(QResizeEvent *e)
  29 {
  30     std::cout << "window::resizeEvent()" << std::endl;
  31
  32     // Resize opengl widget to cover the whole window
  33     myglWidget->setGeometry(0, 0, e->size().width(), e->size().height());
  34
  35     // Force opengl widget to redraw its contents
  36     emit windowResized(e);
  37 }
  38
  39 void Window::keyPressEvent(QKeyEvent *e)
  40 {
  41     std::cout << "window::keyPressEvent()" << std::endl;
  42
  43     // Dispatch key events
  44     switch(e->key()) {
  45     case '+':
  46         emit verticesChanged(1);
  47         break;
  48     case '-':
  49         emit verticesChanged(-1);
  50         break;
  51     default:
  52         // For key events we don't process,
  53         // just call the base class handler implementation.
  54         QWidget::keyPressEvent(e);
  55     }
  56 }