X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/9da8feef2363386c092af561c9e125d999392557..936425786109f020d1e26b329a9c7626977eb25d:/samples/drawing/drawing.cpp?ds=sidebyside diff --git a/samples/drawing/drawing.cpp b/samples/drawing/drawing.cpp index 0af06101ab..61df8bf913 100644 --- a/samples/drawing/drawing.cpp +++ b/samples/drawing/drawing.cpp @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: drawing.cpp +// Name: samples/drawing/drawing.cpp // Purpose: shows and tests wxDC features // Author: Robert Roebling // Modified by: @@ -17,11 +17,6 @@ // headers // ---------------------------------------------------------------------------- -#if defined(__GNUG__) && !defined(__APPLE__) - #pragma implementation "drawing.cpp" - #pragma interface "drawing.cpp" -#endif - // For compilers that support precompilation, includes "wx/wx.h". #include "wx/wxprec.h" @@ -30,7 +25,7 @@ #endif // for all others, include the necessary headers (this file is usually all you -// need because it includes almost all "standard" wxWindows headers +// need because it includes almost all "standard" wxWidgets headers #ifndef WX_PRECOMP #include "wx/wx.h" #endif @@ -64,7 +59,10 @@ enum ScreenToShow Show_Mask, Show_Ops, Show_Regions, - Show_Circles + Show_Circles, + Show_Splines, + Show_Gradient, + Show_Max }; // ---------------------------------------------------------------------------- @@ -119,7 +117,9 @@ public: void OnShow(wxCommandEvent &event); void OnOption(wxCommandEvent &event); +#if wxUSE_COLOURDLG wxColour SelectColour(); +#endif // wxUSE_COLOURDLG void PrepareDC(wxDC& dc); int m_backgroundMode; @@ -137,7 +137,7 @@ public: MyCanvas *m_canvas; private: - // any class wishing to process wxWindows events must use this macro + // any class wishing to process wxWidgets events must use this macro DECLARE_EVENT_TABLE() }; @@ -164,7 +164,9 @@ protected: void DrawWithLogicalOps(wxDC& dc); void DrawRegions(wxDC& dc); void DrawCircles(wxDC& dc); + void DrawSplines(wxDC& dc); void DrawDefault(wxDC& dc); + void DrawGradients(wxDC& dc); void DrawRegionsHelper(wxDC& dc, wxCoord x, bool firstTime); @@ -187,10 +189,10 @@ private: enum { // menu items - File_Quit = 1, - File_About, + File_Quit = wxID_EXIT, + File_About = wxID_ABOUT, - MenuShow_First, + MenuShow_First = wxID_HIGHEST, File_ShowDefault = MenuShow_First, File_ShowText, File_ShowLines, @@ -200,7 +202,9 @@ enum File_ShowOps, File_ShowRegions, File_ShowCircles, - MenuShow_Last = File_ShowCircles, + File_ShowSplines, + File_ShowGradients, + MenuShow_Last = File_ShowGradients, File_Clip, @@ -228,9 +232,11 @@ enum LogicalOrigin_Set, LogicalOrigin_Restore, +#if wxUSE_COLOURDLG Colour_TextForeground, Colour_TextBackground, Colour_Background, +#endif // wxUSE_COLOURDLG Colour_BackgroundMode, Colour_TextureBackgound, @@ -238,11 +244,11 @@ enum }; // ---------------------------------------------------------------------------- -// event tables and other macros for wxWindows +// event tables and other macros for wxWidgets // ---------------------------------------------------------------------------- -// Create a new application object: this macro will allow wxWindows to create +// Create a new application object: this macro will allow wxWidgets to create // the application object during program execution (it's better than using a // static object for many reasons) and also declares the accessor function // wxGetApp() which will return the reference of the right type (i.e. MyApp and @@ -360,7 +366,7 @@ void MyApp::DeleteBitmaps() // MyCanvas // ---------------------------------------------------------------------------- -// the event tables connect the wxWindows events with the functions (event +// the event tables connect the wxWidgets events with the functions (event // handlers) which process them. BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow) EVT_PAINT (MyCanvas::OnPaint) @@ -509,11 +515,16 @@ void MyCanvas::DrawDefault(wxDC& dc) // mark the origin dc.DrawCircle(0, 0, 10); +#if !defined(wxMAC_USE_CORE_GRAPHICS) || !wxMAC_USE_CORE_GRAPHICS + // GetPixel and FloodFill not supported by Mac OS X CoreGraphics + // (FloodFill uses Blit from a non-wxMemoryDC) //flood fill using brush, starting at 1,1 and replacing whatever colour we find there dc.SetBrush(wxBrush(wxColour(128,128,0), wxSOLID)); + wxColour tmpColour ; dc.GetPixel(1,1, &tmpColour); dc.FloodFill(1,1, tmpColour, wxFLOOD_SURFACE); +#endif dc.DrawCheckMark(5, 80, 15, 15); dc.DrawCheckMark(25, 80, 30, 30); @@ -660,7 +671,7 @@ void MyCanvas::DrawDefault(wxDC& dc) // Added by JACS to demonstrate bizarre behaviour. // With a size of 70, we get a missing red RHS, - // and the hight is too small, so we get yellow + // and the height is too small, so we get yellow // showing. With a size of 40, it draws as expected: // it just shows a white rectangle with red outline. int totalWidth = 70; @@ -670,11 +681,12 @@ void MyCanvas::DrawDefault(wxDC& dc) wxMemoryDC memdc2; memdc2.SelectObject(bitmap2); - wxBrush yellowBrush(wxColour(255, 255, 0), wxSOLID); + wxColour clr(255, 255, 0); + wxBrush yellowBrush(clr, wxSOLID); memdc2.SetBackground(yellowBrush); memdc2.Clear(); - wxPen yellowPen(wxColour(255, 255, 0), 1, wxSOLID); + wxPen yellowPen(clr, 1, wxSOLID); // Now draw a white rectangle with red outline. It should // entirely eclipse the yellow background. @@ -875,6 +887,124 @@ void MyCanvas::DrawCircles(wxDC& dc) dc.DrawEllipticArc(x + 5*r, y, 2*r, r, 270, 360); } +void MyCanvas::DrawSplines(wxDC& dc) +{ +#if wxUSE_SPLINES + dc.DrawText(_T("Some splines"), 10, 5); + + // values are hardcoded rather than randomly generated + // so the output can be compared between native + // implementations on platforms with different random + // generators + + const int R = 300; + const wxPoint center( R + 20, R + 20 ); + const int angles[7] = { 0, 10, 33, 77, 13, 145, 90 }; + const int radii[5] = { 100 , 59, 85, 33, 90 }; + const int n = 200; + wxPoint pts[n]; + + // background spline calculation + unsigned int radius_pos = 0; + unsigned int angle_pos = 0; + int angle = 0; + for ( int i = 0; i < n; i++ ) + { + angle += angles[ angle_pos ]; + int r = R * radii[ radius_pos ] / 100; + pts[ i ].x = center.x + (wxCoord)( r * cos( M_PI * angle / 180.0) ); + pts[ i ].y = center.y + (wxCoord)( r * sin( M_PI * angle / 180.0) ); + + angle_pos++; + if ( angle_pos >= WXSIZEOF(angles) ) angle_pos = 0; + + radius_pos++; + if ( radius_pos >= WXSIZEOF(radii) ) radius_pos = 0; + } + + // background spline drawing + dc.SetPen(*wxRED_PEN); + dc.DrawSpline(WXSIZEOF(pts), pts); + + // less detailed spline calculation + wxPoint letters[4][5]; + // w + letters[0][0] = wxPoint( 0,1); // O O + letters[0][1] = wxPoint( 1,3); // * * + letters[0][2] = wxPoint( 2,2); // * O * + letters[0][3] = wxPoint( 3,3); // * * * * + letters[0][4] = wxPoint( 4,1); // O O + // x1 + letters[1][0] = wxPoint( 5,1); // O*O + letters[1][1] = wxPoint( 6,1); // * + letters[1][2] = wxPoint( 7,2); // O + letters[1][3] = wxPoint( 8,3); // * + letters[1][4] = wxPoint( 9,3); // O*O + // x2 + letters[2][0] = wxPoint( 5,3); // O*O + letters[2][1] = wxPoint( 6,3); // * + letters[2][2] = wxPoint( 7,2); // O + letters[2][3] = wxPoint( 8,1); // * + letters[2][4] = wxPoint( 9,1); // O*O + // W + letters[3][0] = wxPoint(10,0); // O O + letters[3][1] = wxPoint(11,3); // * * + letters[3][2] = wxPoint(12,1); // * O * + letters[3][3] = wxPoint(13,3); // * * * * + letters[3][4] = wxPoint(14,0); // O O + + const int dx = 2 * R / letters[3][4].x; + const int h[4] = { -R/2, 0, R/4, R/2 }; + + for ( int m = 0; m < 4; m++ ) + { + for ( int n = 0; n < 5; n++ ) + { + letters[m][n].x = center.x - R + letters[m][n].x * dx; + letters[m][n].y = center.y + h[ letters[m][n].y ]; + } + + dc.SetPen( wxPen( wxT("blue"), 1, wxDOT) ); + dc.DrawLines(5, letters[m]); + dc.SetPen( wxPen( wxT("black"), 4, wxSOLID) ); + dc.DrawSpline(5, letters[m]); + } + +#else + dc.DrawText(_T("Splines not supported."), 10, 5); +#endif +} + +void MyCanvas::DrawGradients(wxDC& dc) +{ + // LHS: linear + wxRect r(10, 10, 100, 100); + dc.GradientFillLinear(r, *wxWHITE, *wxBLUE, wxRIGHT); + + r.Offset(0, 110); + dc.GradientFillLinear(r, *wxWHITE, *wxBLUE, wxLEFT); + + r.Offset(0, 110); + dc.GradientFillLinear(r, *wxWHITE, *wxBLUE, wxDOWN); + + r.Offset(0, 110); + dc.GradientFillLinear(r, *wxWHITE, *wxBLUE, wxUP); + + + // RHS: concentric + r = wxRect(200, 10, 100, 100); + dc.GradientFillConcentric(r, *wxBLUE, *wxWHITE); + + r.Offset(0, 110); + dc.GradientFillConcentric(r, *wxWHITE, *wxBLUE); + + r.Offset(0, 110); + dc.GradientFillConcentric(r, *wxBLUE, *wxWHITE, wxPoint(0, 0)); + + r.Offset(0, 110); + dc.GradientFillConcentric(r, *wxBLUE, *wxWHITE, wxPoint(100, 100)); +} + void MyCanvas::DrawRegions(wxDC& dc) { dc.DrawText(_T("You should see a red rect partly covered by a cyan one ") @@ -947,7 +1077,8 @@ void MyCanvas::OnPaint(wxPaintEvent &WXUNUSED(event)) if ( m_owner->m_textureBackground) { if ( ! m_owner->m_backgroundBrush.Ok() ) { - wxBrush b(wxColour(0,128,0), wxSOLID); + wxColour clr(0,128,0); + wxBrush b(clr, wxSOLID); dc.SetBackground(b); } } @@ -974,6 +1105,10 @@ void MyCanvas::OnPaint(wxPaintEvent &WXUNUSED(event)) DrawCircles(dc); break; + case Show_Splines: + DrawSplines(dc); + break; + case Show_Regions: DrawRegions(dc); break; @@ -1004,11 +1139,19 @@ void MyCanvas::OnPaint(wxPaintEvent &WXUNUSED(event)) case Show_Ops: DrawWithLogicalOps(dc); break; + + case Show_Gradient: + DrawGradients(dc); + break; + + default: + break; } } void MyCanvas::OnMouseMove(wxMouseEvent &event) { +#if wxUSE_STATUSBAR wxClientDC dc(this); PrepareDC(dc); m_owner->PrepareDC(dc); @@ -1019,13 +1162,16 @@ void MyCanvas::OnMouseMove(wxMouseEvent &event) wxString str; str.Printf( wxT("Current mouse position: %d,%d"), (int)x, (int)y ); m_owner->SetStatusText( str ); +#else + wxUnusedVar(event); +#endif // wxUSE_STATUSBAR } // ---------------------------------------------------------------------------- // MyFrame // ---------------------------------------------------------------------------- -// the event tables connect the wxWindows events with the functions (event +// the event tables connect the wxWidgets events with the functions (event // handlers) which process them. It can be also done at run-time, but for the // simple menu events like this the static method is much simpler. BEGIN_EVENT_TABLE(MyFrame, wxFrame) @@ -1056,6 +1202,8 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) menuFile->Append(File_ShowOps, _T("&ROP screen\tF7")); menuFile->Append(File_ShowRegions, _T("Re&gions screen\tF8")); menuFile->Append(File_ShowCircles, _T("&Circles screen\tF9")); + menuFile->Append(File_ShowSplines, _T("&Splines screen\tF11")); + menuFile->Append(File_ShowGradients, _T("&Gradients screen\tF12")); menuFile->AppendSeparator(); menuFile->AppendCheckItem(File_Clip, _T("&Clip\tCtrl-C"), _T("Clip/unclip drawing")); menuFile->AppendSeparator(); @@ -1079,8 +1227,8 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) menuUserScale->Append( UserScale_Restore, _T("&Restore to normal\tCtrl-0") ); wxMenu *menuAxis = new wxMenu; - menuAxis->Append( AxisMirror_Horiz, _T("Mirror horizontally\tCtrl-M"), _T(""), true ); - menuAxis->Append( AxisMirror_Vertic, _T("Mirror vertically\tCtrl-N"), _T(""), true ); + menuAxis->AppendCheckItem( AxisMirror_Horiz, _T("Mirror horizontally\tCtrl-M") ); + menuAxis->AppendCheckItem( AxisMirror_Vertic, _T("Mirror vertically\tCtrl-N") ); wxMenu *menuLogical = new wxMenu; menuLogical->Append( LogicalOrigin_MoveDown, _T("Move &down\tCtrl-D") ); @@ -1092,11 +1240,13 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) menuLogical->Append( LogicalOrigin_Restore, _T("&Restore to normal\tShift-Ctrl-0") ); wxMenu *menuColour = new wxMenu; +#if wxUSE_COLOURDLG menuColour->Append( Colour_TextForeground, _T("Text &foreground...") ); menuColour->Append( Colour_TextBackground, _T("Text &background...") ); menuColour->Append( Colour_Background, _T("Background &colour...") ); - menuColour->Append( Colour_BackgroundMode, _T("&Opaque/transparent\tCtrl-B"), _T(""), true ); - menuColour->Append( Colour_TextureBackgound, _T("Draw textured back&ground\tCtrl-T"), _T(""), true); +#endif // wxUSE_COLOURDLG + menuColour->AppendCheckItem( Colour_BackgroundMode, _T("&Opaque/transparent\tCtrl-B") ); + menuColour->AppendCheckItem( Colour_TextureBackgound, _T("Draw textured back&ground\tCtrl-T") ); // now append the freshly created menu to the menu bar... wxMenuBar *menuBar = new wxMenuBar; @@ -1110,9 +1260,10 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) // ... and attach this menu bar to the frame SetMenuBar(menuBar); - // create a status bar just for fun (by default with 1 pane only) +#if wxUSE_STATUSBAR CreateStatusBar(2); - SetStatusText(_T("Welcome to wxWindows!")); + SetStatusText(_T("Welcome to wxWidgets!")); +#endif // wxUSE_STATUSBAR m_mapMode = wxMM_TEXT; m_xUserScale = 1.0; @@ -1225,6 +1376,7 @@ void MyFrame::OnOption(wxCommandEvent& event) m_xAxisReversed = !m_xAxisReversed; break; +#if wxUSE_COLOURDLG case Colour_TextForeground: m_colourForeground = SelectColour(); break; @@ -1240,6 +1392,8 @@ void MyFrame::OnOption(wxCommandEvent& event) } } break; +#endif // wxUSE_COLOURDLG + case Colour_BackgroundMode: m_backgroundMode = m_backgroundMode == wxSOLID ? wxTRANSPARENT : wxSOLID; @@ -1265,6 +1419,7 @@ void MyFrame::PrepareDC(wxDC& dc) dc.SetMapMode( m_mapMode ); } +#if wxUSE_COLOURDLG wxColour MyFrame::SelectColour() { wxColour col; @@ -1278,4 +1433,4 @@ wxColour MyFrame::SelectColour() return col; } - +#endif // wxUSE_COLOURDLG