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7a632f10 | 1 | ///////////////////////////////////////////////////////////////////////////// |
f5ac656c | 2 | // Name: rotate.cpp |
7a632f10 JS |
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 | ||
46132182 RR |
19 | #ifndef WX_PRECOMP |
20 | #include "wx/wx.h" | |
21 | #endif | |
22 | ||
7a632f10 JS |
23 | #include "wx/image.h" |
24 | ||
fa1993cc | 25 | /* GRG: This is not ANSI standard, define M_PI explicitly |
f5ac656c | 26 | #include <math.h> // M_PI |
fa1993cc GRG |
27 | */ |
28 | ||
29 | #ifndef M_PI | |
30 | #define M_PI 3.1415926535897932384626433832795 | |
31 | #endif | |
32 | ||
f5ac656c | 33 | |
7a632f10 JS |
34 | class MyApp: public wxApp |
35 | { | |
f5ac656c | 36 | public: |
7a632f10 | 37 | virtual bool OnInit(); |
f5ac656c VZ |
38 | |
39 | const wxImage& GetImage() const { return m_image; } | |
40 | ||
41 | private: | |
42 | wxImage m_image; | |
7a632f10 JS |
43 | }; |
44 | ||
45 | ||
46 | class MyFrame: public wxFrame | |
47 | { | |
48 | public: | |
49 | MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size); | |
50 | ||
51 | void OnQuit (wxCommandEvent &); | |
f5ac656c | 52 | void OnAngle(wxCommandEvent &); |
7a632f10 JS |
53 | void OnMouseLeftUp (wxMouseEvent & event); |
54 | void OnMouseRightUp (wxMouseEvent & event); | |
55 | ||
56 | private: | |
f5ac656c VZ |
57 | double m_angle; |
58 | ||
7a632f10 JS |
59 | DECLARE_EVENT_TABLE() |
60 | }; | |
61 | ||
62 | enum | |
63 | { | |
f5ac656c VZ |
64 | ID_Quit = 1, |
65 | ID_Angle | |
7a632f10 JS |
66 | }; |
67 | ||
68 | BEGIN_EVENT_TABLE(MyFrame, wxFrame) | |
69 | EVT_MENU (ID_Quit, MyFrame::OnQuit) | |
f5ac656c | 70 | EVT_MENU (ID_Angle, MyFrame::OnAngle) |
7a632f10 JS |
71 | EVT_LEFT_UP (MyFrame::OnMouseLeftUp) |
72 | EVT_RIGHT_UP (MyFrame::OnMouseRightUp) | |
73 | END_EVENT_TABLE() | |
74 | ||
75 | IMPLEMENT_APP(MyApp) | |
76 | ||
77 | ||
78 | bool MyApp::OnInit() | |
79 | { | |
f5ac656c | 80 | m_image = wxImage("kclub.bmp", wxBITMAP_TYPE_BMP); |
b2177839 GRG |
81 | |
82 | // any unused colour will do | |
83 | m_image.SetMaskColour( 0, 255, 255 ); | |
84 | ||
f5ac656c VZ |
85 | if ( !m_image.Ok() ) |
86 | { | |
87 | wxLogError("Can't load the test image, please copy it to the " | |
88 | "program directory"); | |
89 | return FALSE; | |
90 | } | |
91 | ||
92 | MyFrame *frame = new MyFrame ("wxWindows rotate sample", | |
93 | wxPoint(20,20), wxSize(600,450)); | |
7a632f10 JS |
94 | |
95 | frame->SetBackgroundColour (wxColour (0,80,60)); | |
b2177839 | 96 | frame->Clear(); |
7a632f10 JS |
97 | frame->Show (TRUE); |
98 | SetTopWindow (frame); | |
99 | return TRUE; | |
100 | } | |
101 | ||
102 | MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) | |
103 | : wxFrame((wxFrame *)NULL, -1, title, pos, size) | |
104 | { | |
f5ac656c VZ |
105 | m_angle = 0.1; |
106 | ||
7a632f10 | 107 | wxMenu *menuFile = new wxMenu; |
f5ac656c VZ |
108 | menuFile->Append (ID_Angle, "Set &angle\tCtrl-A"); |
109 | menuFile->AppendSeparator(); | |
110 | menuFile->Append (ID_Quit, "E&xit\tAlt-X"); | |
7a632f10 JS |
111 | |
112 | wxMenuBar *menuBar = new wxMenuBar; | |
113 | menuBar->Append (menuFile, "&File"); | |
114 | ||
115 | SetMenuBar (menuBar); | |
116 | } | |
117 | ||
f5ac656c VZ |
118 | void MyFrame::OnAngle (wxCommandEvent &) |
119 | { | |
120 | long degrees = (long)((180*m_angle)/M_PI); | |
121 | degrees = wxGetNumberFromUser("Change the image rotation angle", | |
122 | "Angle in degrees:", | |
123 | "wxWindows rotate sample", | |
124 | degrees, | |
125 | -180, +180, | |
126 | this); | |
127 | m_angle = (degrees * M_PI) / 180.0; | |
128 | } | |
129 | ||
7a632f10 JS |
130 | void MyFrame::OnQuit (wxCommandEvent &) |
131 | { | |
132 | Close (TRUE); | |
133 | } | |
134 | ||
135 | ||
136 | // Rotate with interpolation and with offset correction | |
137 | void MyFrame::OnMouseLeftUp (wxMouseEvent & event) | |
138 | { | |
7a632f10 | 139 | wxPoint offset; |
f5ac656c VZ |
140 | const wxImage& img = wxGetApp().GetImage(); |
141 | wxImage img2 = img.Rotate(m_angle, wxPoint(img.GetWidth()/2, img.GetHeight()/2), TRUE, &offset); | |
7a632f10 JS |
142 | |
143 | wxBitmap bmp = img2.ConvertToBitmap (); | |
144 | ||
145 | wxClientDC dc (this); | |
b2177839 | 146 | dc.DrawBitmap (img2.ConvertToBitmap(), event.m_x + offset.x, event.m_y + offset.y, TRUE); |
7a632f10 JS |
147 | } |
148 | ||
149 | // without interpolation, and without offset correction | |
150 | void MyFrame::OnMouseRightUp (wxMouseEvent & event) | |
151 | { | |
f5ac656c VZ |
152 | const wxImage& img = wxGetApp().GetImage(); |
153 | wxImage img2 = img.Rotate(m_angle, wxPoint(img.GetWidth()/2, img.GetHeight()/2), FALSE); | |
7a632f10 JS |
154 | |
155 | wxBitmap bmp = img2.ConvertToBitmap (); | |
156 | ||
157 | wxClientDC dc (this); | |
b2177839 | 158 | dc.DrawBitmap (bmp, event.m_x, event.m_y, TRUE); |
7a632f10 | 159 | } |