samples/rotate/rotate.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:      test.cpp
   3 // Purpose:   Image rotation test
   4 // Author:    Carlos Moreno
   5 // Modified by:
   6 // Created:   6/2/2000
   7 // RCS-ID:    $Id$
   8 // Copyright: (c) 2000
   9 // Licence:   wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #ifdef __BORLANDC__
  16 #pragma hdrstop
  17 #endif
  18
  19 #include "wx/image.h"
  20
  21 class MyApp: public wxApp
  22 {
  23     virtual bool OnInit();
  24 };
  25
  26
  27 class MyFrame: public wxFrame
  28 {
  29 public:
  30     MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size);
  31
  32     void OnQuit (wxCommandEvent &);
  33     void OnMouseLeftUp (wxMouseEvent & event);
  34     void OnMouseRightUp (wxMouseEvent & event);
  35
  36 private:
  37     DECLARE_EVENT_TABLE()
  38 };
  39
  40 enum
  41 {
  42     ID_Quit = 1
  43 };
  44
  45 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
  46     EVT_MENU (ID_Quit, MyFrame::OnQuit)
  47     EVT_LEFT_UP (MyFrame::OnMouseLeftUp)
  48     EVT_RIGHT_UP (MyFrame::OnMouseRightUp)
  49 END_EVENT_TABLE()
  50
  51 IMPLEMENT_APP(MyApp)
  52
  53
  54 bool MyApp::OnInit()
  55 {
  56     MyFrame *frame = new MyFrame ("wxWindows Skeleton", wxPoint(20,20), wxSize(600,450));
  57
  58     frame->SetBackgroundColour (wxColour (0,80,60));
  59
  60     frame->Show (TRUE);
  61     SetTopWindow (frame);
  62     return TRUE;
  63 }
  64
  65 MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
  66     : wxFrame((wxFrame *)NULL, -1, title, pos, size)
  67 {
  68     wxMenu *menuFile = new wxMenu;
  69     menuFile->Append (ID_Quit, "E&xit");
  70
  71     wxMenuBar *menuBar = new wxMenuBar;
  72     menuBar->Append (menuFile, "&File");
  73
  74     SetMenuBar (menuBar);
  75 }
  76
  77 void MyFrame::OnQuit (wxCommandEvent &)
  78 {
  79     Close (TRUE);
  80 }
  81
  82
  83 // Rotate with interpolation and with offset correction
  84 void MyFrame::OnMouseLeftUp (wxMouseEvent & event)
  85 {
  86     static double angle = 0.1;
  87     const double pi = 3.14159265359;
  88
  89     wxImage img ("kclub.bmp", wxBITMAP_TYPE_BMP);
  90
  91     wxPoint offset;
  92     wxImage img2 = img.Rotate(angle, wxPoint(img.GetWidth()/2, img.GetHeight()/2), TRUE, &offset);
  93     angle += 0.05;
  94
  95     wxBitmap bmp = img2.ConvertToBitmap ();
  96
  97     wxClientDC dc (this);
  98     dc.DrawBitmap (bmp, event.m_x + offset.x, event.m_y + offset.y);
  99
 100     return;
 101 }
 102
 103 // without interpolation, and without offset correction
 104 void MyFrame::OnMouseRightUp (wxMouseEvent & event)
 105 {
 106     static double angle = 0.1;
 107     const double pi = 3.14159265359;
 108
 109     wxImage img ("kclub.bmp", wxBITMAP_TYPE_BMP);
 110
 111     wxImage img2 = img.Rotate(angle, wxPoint(img.GetWidth()/2, img.GetHeight()/2), FALSE);
 112     angle += 0.05;
 113
 114     wxBitmap bmp = img2.ConvertToBitmap ();
 115
 116     wxClientDC dc (this);
 117     dc.DrawBitmap (bmp, event.m_x, event.m_y);
 118
 119     return;
 120 }