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 #ifndef WX_PRECOMP
  20 #include "wx/wx.h"
  21 #endif
  22
  23 #include "wx/image.h"
  24
  25 class MyApp: public wxApp
  26 {
  27     virtual bool OnInit();
  28 };
  29
  30
  31 class MyFrame: public wxFrame
  32 {
  33 public:
  34     MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size);
  35
  36     void OnQuit (wxCommandEvent &);
  37     void OnMouseLeftUp (wxMouseEvent & event);
  38     void OnMouseRightUp (wxMouseEvent & event);
  39
  40 private:
  41     DECLARE_EVENT_TABLE()
  42 };
  43
  44 enum
  45 {
  46     ID_Quit = 1
  47 };
  48
  49 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
  50     EVT_MENU (ID_Quit, MyFrame::OnQuit)
  51     EVT_LEFT_UP (MyFrame::OnMouseLeftUp)
  52     EVT_RIGHT_UP (MyFrame::OnMouseRightUp)
  53 END_EVENT_TABLE()
  54
  55 IMPLEMENT_APP(MyApp)
  56
  57
  58 bool MyApp::OnInit()
  59 {
  60     MyFrame *frame = new MyFrame ("wxWindows Skeleton", wxPoint(20,20), wxSize(600,450));
  61
  62     frame->SetBackgroundColour (wxColour (0,80,60));
  63
  64     frame->Show (TRUE);
  65     SetTopWindow (frame);
  66     return TRUE;
  67 }
  68
  69 MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
  70     : wxFrame((wxFrame *)NULL, -1, title, pos, size)
  71 {
  72     wxMenu *menuFile = new wxMenu;
  73     menuFile->Append (ID_Quit, "E&xit");
  74
  75     wxMenuBar *menuBar = new wxMenuBar;
  76     menuBar->Append (menuFile, "&File");
  77
  78     SetMenuBar (menuBar);
  79 }
  80
  81 void MyFrame::OnQuit (wxCommandEvent &)
  82 {
  83     Close (TRUE);
  84 }
  85
  86
  87 // Rotate with interpolation and with offset correction
  88 void MyFrame::OnMouseLeftUp (wxMouseEvent & event)
  89 {
  90     static double angle = 0.1;
  91     const double pi = 3.14159265359;
  92
  93     wxImage img ("kclub.bmp", wxBITMAP_TYPE_BMP);
  94
  95     wxPoint offset;
  96     wxImage img2 = img.Rotate(angle, wxPoint(img.GetWidth()/2, img.GetHeight()/2), TRUE, &offset);
  97     angle += 0.05;
  98
  99     wxBitmap bmp = img2.ConvertToBitmap ();
 100
 101     wxClientDC dc (this);
 102     dc.DrawBitmap (bmp, event.m_x + offset.x, event.m_y + offset.y);
 103
 104     return;
 105 }
 106
 107 // without interpolation, and without offset correction
 108 void MyFrame::OnMouseRightUp (wxMouseEvent & event)
 109 {
 110     static double angle = 0.1;
 111     const double pi = 3.14159265359;
 112
 113     wxImage img ("kclub.bmp", wxBITMAP_TYPE_BMP);
 114
 115     wxImage img2 = img.Rotate(angle, wxPoint(img.GetWidth()/2, img.GetHeight()/2), FALSE);
 116     angle += 0.05;
 117
 118     wxBitmap bmp = img2.ConvertToBitmap ();
 119
 120     wxClientDC dc (this);
 121     dc.DrawBitmap (bmp, event.m_x, event.m_y);
 122
 123     return;
 124 }