examples/widgetdemo/buttondemo.cpp

   1 #include <msp/gltk/button.h>
   2 #include <msp/gltk/label.h>
   3 #include <msp/strings/format.h>
   4 #include "buttondemo.h"
   5
   6 using namespace std;
   7 using namespace Msp;
   8
   9 ButtonDemo::ButtonDemo()
  10 {
  11         set_layout(new GLtk::Layout);
  12
  13         GLtk::Label *lbl_message = new GLtk::Label;
  14         add(*lbl_message);
  15
  16         vector<GLtk::Button *> buttons;
  17         for(unsigned i=0; i<5; ++i)
  18         {
  19                 string text = format("Button %d", i+1);
  20                 GLtk::Button *btn = new GLtk::Button(text);
  21                 btn->signal_clicked.connect(sigc::bind(sigc::mem_fun(lbl_message, &GLtk::Label::set_text), text+" was clicked"));
  22                 buttons.push_back(btn);
  23                 add(*btn);
  24                 if(i>0)
  25                 {
  26                         layout->add_constraint(*btn, GLtk::Layout::COPY_WIDTH, *buttons[0]);
  27                         layout->add_constraint(*btn, GLtk::Layout::COPY_HEIGHT, *buttons[0]);
  28
  29                         if(i>=3)
  30                         {
  31                                 layout->add_constraint(*btn, GLtk::Layout::RIGHT_OF, *buttons[i-1]);
  32                                 layout->add_constraint(*btn, GLtk::Layout::ALIGN_TOP, *buttons[i-1]);
  33                         }
  34                         else
  35                         {
  36                                 layout->add_constraint(*btn, GLtk::Layout::BELOW, *buttons[i-1]);
  37                                 layout->add_constraint(*btn, GLtk::Layout::ALIGN_LEFT, *buttons[i-1]);
  38                         }
  39                 }
  40         }
  41
  42         layout->add_constraint(*buttons[0], GLtk::Layout::BELOW, *lbl_message);
  43
  44         GLtk::Button *btn = new GLtk::Button("A big one");
  45         btn->signal_clicked.connect(sigc::bind(sigc::mem_fun(lbl_message, &GLtk::Label::set_text), "The big button was clicked"));
  46         buttons.push_back(btn);
  47         add(*btn);
  48         layout->add_constraint(*btn, GLtk::Layout::ALIGN_TOP, *buttons[0]);
  49         layout->add_constraint(*btn, GLtk::Layout::ALIGN_BOTTOM, *buttons[1]);
  50         layout->add_constraint(*btn, GLtk::Layout::ALIGN_LEFT, *buttons[3]);
  51         layout->add_constraint(*btn, GLtk::Layout::ALIGN_RIGHT, *buttons[4]);
  52 }