X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f6bcfd974ef26faf6f91a62cac09827e09463fd1..da78f3b10cfe9447053f32ea4baddf50058eafef:/samples/rotate/rotate.cpp diff --git a/samples/rotate/rotate.cpp b/samples/rotate/rotate.cpp index 89c7a0d299..002cc3bebd 100644 --- a/samples/rotate/rotate.cpp +++ b/samples/rotate/rotate.cpp @@ -9,6 +9,14 @@ // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// +// ============================================================================ +// declarations +// ============================================================================ + +// ---------------------------------------------------------------------------- +// headers +// ---------------------------------------------------------------------------- + // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" @@ -21,41 +29,64 @@ #endif #include "wx/image.h" +#include "wx/numdlg.h" +#include "wx/dynarray.h" -/* GRG: This is not ANSI standard, define M_PI explicitly -#include // M_PI -*/ - -#ifndef M_PI -#define M_PI 3.1415926535897932384626433832795 -#endif - +// ---------------------------------------------------------------------------- +// application class +// ---------------------------------------------------------------------------- class MyApp: public wxApp { public: virtual bool OnInit(); - const wxImage& GetImage() const { return m_image; } private: wxImage m_image; }; +// ---------------------------------------------------------------------------- +// data class for cards that need to be rendered +// ---------------------------------------------------------------------------- + +class MyRenderedCard +{ +public: + MyRenderedCard(const wxBitmap& bmp, int x, int y) + : m_bmp(bmp), m_x(x), m_y(y) { } + wxBitmap m_bmp; + int m_x, m_y; +}; + +// Declare a wxArray type to hold MyRenderedCards. +WX_DECLARE_OBJARRAY(MyRenderedCard, ArrayOfCards); + +// ---------------------------------------------------------------------------- +// custom canvas control that we can draw on +// ---------------------------------------------------------------------------- class MyCanvas: public wxScrolledWindow { public: MyCanvas(wxWindow* parent); + void ClearCards(); + void OnMouseLeftUp (wxMouseEvent & event); void OnMouseRightUp (wxMouseEvent & event); + void OnPaint (wxPaintEvent & event); private: + ArrayOfCards m_cards; DECLARE_EVENT_TABLE() }; +// ---------------------------------------------------------------------------- +// main frame +// ---------------------------------------------------------------------------- + class MyFrame: public wxFrame { public: @@ -63,93 +94,87 @@ public: void OnQuit (wxCommandEvent &); void OnAngle(wxCommandEvent &); + void OnClear(wxCommandEvent &); double m_angle; DECLARE_EVENT_TABLE() + +private: + MyCanvas *m_canvas; }; +// ---------------------------------------------------------------------------- +// menu item identifiers +// ---------------------------------------------------------------------------- + enum { ID_Quit = 1, - ID_Angle + ID_Angle, + ID_Clear }; -BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow) - EVT_LEFT_UP (MyCanvas::OnMouseLeftUp) - EVT_RIGHT_UP (MyCanvas::OnMouseRightUp) -END_EVENT_TABLE() +// ============================================================================ +// implementation +// ============================================================================ -BEGIN_EVENT_TABLE(MyFrame, wxFrame) - EVT_MENU (ID_Quit, MyFrame::OnQuit) - EVT_MENU (ID_Angle, MyFrame::OnAngle) -END_EVENT_TABLE() +// ---------------------------------------------------------------------------- +// application class +// ---------------------------------------------------------------------------- IMPLEMENT_APP(MyApp) bool MyApp::OnInit() { - m_image = wxImage("kclub.bmp", wxBITMAP_TYPE_BMP); + m_image = wxImage(_T("kclub.bmp"), wxBITMAP_TYPE_BMP); // any unused colour will do m_image.SetMaskColour( 0, 255, 255 ); if ( !m_image.Ok() ) { - wxLogError("Can't load the test image, please copy it to the " - "program directory"); - return FALSE; + wxLogError(wxT("Can't load the test image, please copy it to the ") + wxT("program directory")); + return false; } - MyFrame *frame = new MyFrame ("wxWindows rotate sample", - wxPoint(20,20), wxSize(600,450)); + MyFrame *frame = new MyFrame (_T("wxWidgets rotate sample"), + wxPoint(20, 20), wxSize(600, 450)); - frame->Show (TRUE); + frame->Show (true); SetTopWindow (frame); - return TRUE; + return true; } -MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) - : wxFrame((wxFrame *)NULL, -1, title, pos, size) -{ - m_angle = 0.1; - - new MyCanvas(this); - - wxMenu *menuFile = new wxMenu; - menuFile->Append (ID_Angle, "Set &angle\tCtrl-A"); - menuFile->AppendSeparator(); - menuFile->Append (ID_Quit, "E&xit\tAlt-X"); +// ---------------------------------------------------------------------------- +// data class for cards that need to be rendered +// ---------------------------------------------------------------------------- - wxMenuBar *menuBar = new wxMenuBar; - menuBar->Append (menuFile, "&File"); +#include "wx/arrimpl.cpp" +WX_DEFINE_OBJARRAY(ArrayOfCards); - SetMenuBar (menuBar); -} +// ---------------------------------------------------------------------------- +// custom canvas control that we can draw on +// ---------------------------------------------------------------------------- -void MyFrame::OnAngle (wxCommandEvent &) -{ - long degrees = (long)((180*m_angle)/M_PI); - degrees = wxGetNumberFromUser("Change the image rotation angle", - "Angle in degrees:", - "wxWindows rotate sample", - degrees, - -180, +180, - this); - if ( degrees != -1 ) - m_angle = (degrees * M_PI) / 180.0; -} +BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow) + EVT_LEFT_UP (MyCanvas::OnMouseLeftUp) + EVT_RIGHT_UP (MyCanvas::OnMouseRightUp) + EVT_PAINT (MyCanvas::OnPaint) +END_EVENT_TABLE() -void MyFrame::OnQuit (wxCommandEvent &) +MyCanvas::MyCanvas(wxWindow* parent): + wxScrolledWindow(parent, wxID_ANY) { - Close (TRUE); + SetBackgroundColour (wxColour (0,80,60)); + ClearBackground(); } -MyCanvas::MyCanvas(wxWindow* parent): - wxScrolledWindow(parent, -1) +void MyCanvas::ClearCards () { - SetBackgroundColour (wxColour (0,80,60)); - Clear(); + m_cards.Clear(); + Refresh(true); } // Rotate with interpolation and with offset correction @@ -159,12 +184,13 @@ void MyCanvas::OnMouseLeftUp (wxMouseEvent & event) wxPoint offset; const wxImage& img = wxGetApp().GetImage(); - wxImage img2 = img.Rotate(frame->m_angle, wxPoint(img.GetWidth()/2, img.GetHeight()/2), TRUE, &offset); - - wxBitmap bmp = img2.ConvertToBitmap (); + wxImage img2 = img.Rotate(frame->m_angle, + wxPoint(img.GetWidth() / 2, img.GetHeight() / 2), true, &offset); - wxClientDC dc (this); - dc.DrawBitmap (img2.ConvertToBitmap(), event.m_x + offset.x, event.m_y + offset.y, TRUE); + // Add the cards to an array to be drawn later in OnPaint() + m_cards.Add(new MyRenderedCard(wxBitmap(img2), + event.m_x + offset.x, event.m_y + offset.y)); + Refresh(false); } // without interpolation, and without offset correction @@ -173,10 +199,80 @@ void MyCanvas::OnMouseRightUp (wxMouseEvent & event) MyFrame* frame = (MyFrame*) GetParent(); const wxImage& img = wxGetApp().GetImage(); - wxImage img2 = img.Rotate(frame->m_angle, wxPoint(img.GetWidth()/2, img.GetHeight()/2), FALSE); + wxImage img2 = img.Rotate(frame->m_angle, + wxPoint(img.GetWidth() / 2, img.GetHeight() / 2), false); + + // Add the cards to an array to be drawn later in OnPaint() + m_cards.Add(new MyRenderedCard(wxBitmap(img2), event.m_x, event.m_y)); + Refresh(false); +} + +void MyCanvas::OnPaint (wxPaintEvent &) +{ + size_t numCards = m_cards.GetCount(); + + wxPaintDC dc(this); + dc.BeginDrawing(); + + dc.SetTextForeground(wxColour(255, 255, 255)); + dc.DrawText(wxT("Click on the canvas to draw a card."), 10, 10); + + for (size_t i = 0; i < numCards; i++) { + MyRenderedCard & card = m_cards.Item(i); + dc.DrawBitmap(card.m_bmp, card.m_x, card.m_y, true); + } + + dc.EndDrawing(); +} + +// ---------------------------------------------------------------------------- +// main frame +// ---------------------------------------------------------------------------- + +BEGIN_EVENT_TABLE(MyFrame, wxFrame) + EVT_MENU (ID_Quit, MyFrame::OnQuit) + EVT_MENU (ID_Angle, MyFrame::OnAngle) + EVT_MENU (ID_Clear, MyFrame::OnClear) +END_EVENT_TABLE() + +MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) + : wxFrame((wxFrame *)NULL, wxID_ANY, title, pos, size) +{ + m_angle = 0.1; + + m_canvas = new MyCanvas(this); + + wxMenu *menuFile = new wxMenu; + menuFile->Append (ID_Angle, _T("Set &angle...\tCtrl-A")); + menuFile->Append (ID_Clear, _T("&Clear all cards\tCtrl-C")); + menuFile->AppendSeparator(); + menuFile->Append (ID_Quit, _T("E&xit\tAlt-X")); + + wxMenuBar *menuBar = new wxMenuBar; + menuBar->Append (menuFile, _T("&File")); + + SetMenuBar (menuBar); +} + +void MyFrame::OnAngle (wxCommandEvent &) +{ + long degrees = (long)((180*m_angle)/M_PI); + degrees = wxGetNumberFromUser(_T("Change the image rotation angle"), + _T("Angle in degrees:"), + _T("wxWidgets rotate sample"), + degrees, + -180, +180, + this); + if ( degrees != -1 ) + m_angle = (degrees * M_PI) / 180.0; +} - wxBitmap bmp = img2.ConvertToBitmap (); +void MyFrame::OnQuit (wxCommandEvent &) +{ + Close (true); +} - wxClientDC dc (this); - dc.DrawBitmap (bmp, event.m_x, event.m_y, TRUE); +void MyFrame::OnClear (wxCommandEvent &) +{ + m_canvas->ClearCards (); }