X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f88c1a172efd0391ad65621898e6a8823160c4f9..0d2c9713ecc2a9b0d98d9710940018002aaaaed2:/samples/drawing/drawing.cpp diff --git a/samples/drawing/drawing.cpp b/samples/drawing/drawing.cpp index 5c71ee2b09..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 // ---------------------------------------------------------------------------- -#ifdef __GNUG__ - #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 }; // ---------------------------------------------------------------------------- @@ -115,10 +113,13 @@ public: // event handlers (these functions should _not_ be virtual) void OnQuit(wxCommandEvent& event); void OnAbout(wxCommandEvent& event); + void OnClip(wxCommandEvent& event); void OnShow(wxCommandEvent &event); void OnOption(wxCommandEvent &event); +#if wxUSE_COLOURDLG wxColour SelectColour(); +#endif // wxUSE_COLOURDLG void PrepareDC(wxDC& dc); int m_backgroundMode; @@ -136,7 +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() }; @@ -149,7 +150,10 @@ public: void OnPaint(wxPaintEvent &event); void OnMouseMove(wxMouseEvent &event); - void Show(ScreenToShow show) { m_show = show; Refresh(); } + void ToShow(ScreenToShow show) { m_show = show; Refresh(); } + + // set or remove the clipping region + void Clip(bool clip) { m_clip = clip; Refresh(); } protected: void DrawTestLines( int x, int y, int width, wxDC &dc ); @@ -160,7 +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); @@ -170,6 +176,7 @@ private: ScreenToShow m_show; wxBitmap m_smile_bmp; wxIcon m_std_icon; + bool m_clip; DECLARE_EVENT_TABLE() }; @@ -182,10 +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, @@ -195,7 +202,11 @@ enum File_ShowOps, File_ShowRegions, File_ShowCircles, - MenuShow_Last = File_ShowCircles, + File_ShowSplines, + File_ShowGradients, + MenuShow_Last = File_ShowGradients, + + File_Clip, MenuOption_First, @@ -221,9 +232,11 @@ enum LogicalOrigin_Set, LogicalOrigin_Restore, +#if wxUSE_COLOURDLG Colour_TextForeground, Colour_TextBackground, Colour_Background, +#endif // wxUSE_COLOURDLG Colour_BackgroundMode, Colour_TextureBackgound, @@ -231,11 +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 @@ -261,12 +274,12 @@ bool MyApp::LoadImages() gs_bmp36 = new wxBitmap; wxPathList pathList; - pathList.Add("."); - pathList.Add(".."); + pathList.Add(_T(".")); + pathList.Add(_T("..")); - wxString path = pathList.FindValidPath("pat4.bmp"); + wxString path = pathList.FindValidPath(_T("pat4.bmp")); if ( !path ) - return FALSE; + return false; /* 4 colour bitmap */ gs_bmp4->LoadFile(path, wxBITMAP_TYPE_BMP); @@ -275,23 +288,23 @@ bool MyApp::LoadImages() wxMask* mask4 = new wxMask(*gs_bmp4_mono, *wxBLACK); gs_bmp4_mono->SetMask(mask4); - path = pathList.FindValidPath("pat36.bmp"); + path = pathList.FindValidPath(_T("pat36.bmp")); if ( !path ) - return FALSE; + return false; gs_bmp36->LoadFile(path, wxBITMAP_TYPE_BMP); wxMask* mask36 = new wxMask(*gs_bmp36, *wxBLACK); gs_bmp36->SetMask(mask36); - path = pathList.FindValidPath("image.bmp"); + path = pathList.FindValidPath(_T("image.bmp")); if ( !path ) - return FALSE; + return false; gs_bmpNoMask->LoadFile(path, wxBITMAP_TYPE_BMP); gs_bmpWithMask->LoadFile(path, wxBITMAP_TYPE_BMP); gs_bmpWithColMask->LoadFile(path, wxBITMAP_TYPE_BMP); - path = pathList.FindValidPath("mask.bmp"); + path = pathList.FindValidPath(_T("mask.bmp")); if ( !path ) - return FALSE; + return false; gs_bmpMask->LoadFile(path, wxBITMAP_TYPE_BMP); wxMask *mask = new wxMask(*gs_bmpMask, *wxBLACK); @@ -300,18 +313,18 @@ bool MyApp::LoadImages() mask = new wxMask(*gs_bmpWithColMask, *wxWHITE); gs_bmpWithColMask->SetMask(mask); - return TRUE; + return true; } // `Main program' equivalent: the program execution "starts" here bool MyApp::OnInit() { // Create the main application window - MyFrame *frame = new MyFrame("Drawing sample", + MyFrame *frame = new MyFrame(_T("Drawing sample"), wxPoint(50, 50), wxSize(550, 340)); // Show it and tell the application that it's our main window - frame->Show(TRUE); + frame->Show(true); SetTopWindow(frame); if ( !LoadImages() ) @@ -323,11 +336,11 @@ bool MyApp::OnInit() // stop here DeleteBitmaps(); - return FALSE; + return false; } // ok, continue - return TRUE; + return true; } void MyApp::DeleteBitmaps() @@ -353,7 +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) @@ -363,13 +376,14 @@ END_EVENT_TABLE() #include "smile.xpm" MyCanvas::MyCanvas(MyFrame *parent) - : wxScrolledWindow(parent, -1, wxDefaultPosition, wxDefaultSize, + : wxScrolledWindow(parent, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxHSCROLL | wxVSCROLL | wxNO_FULL_REPAINT_ON_RESIZE) { m_owner = parent; m_show = Show_Default; m_smile_bmp = wxBitmap(smile_xpm); m_std_icon = wxArtProvider::GetIcon(wxART_INFORMATION); + m_clip = false; } void MyCanvas::DrawTestBrushes(wxDC& dc) @@ -382,22 +396,22 @@ void MyCanvas::DrawTestBrushes(wxDC& dc) dc.SetBrush(wxBrush(*wxGREEN, wxSOLID)); dc.DrawRectangle(x, y, WIDTH, HEIGHT); - dc.DrawText("Solid green", x + 10, y + 10); + dc.DrawText(_T("Solid green"), x + 10, y + 10); y += HEIGHT; dc.SetBrush(wxBrush(*wxRED, wxCROSSDIAG_HATCH)); dc.DrawRectangle(x, y, WIDTH, HEIGHT); - dc.DrawText("Hatched red", x + 10, y + 10); + dc.DrawText(_T("Hatched red"), x + 10, y + 10); y += HEIGHT; dc.SetBrush(wxBrush(*gs_bmpMask)); dc.DrawRectangle(x, y, WIDTH, HEIGHT); - dc.DrawText("Stipple mono", x + 10, y + 10); + dc.DrawText(_T("Stipple mono"), x + 10, y + 10); y += HEIGHT; dc.SetBrush(wxBrush(*gs_bmpNoMask)); dc.DrawRectangle(x, y, WIDTH, HEIGHT); - dc.DrawText("Stipple colour", x + 10, y + 10); + dc.DrawText(_T("Stipple colour"), x + 10, y + 10); } void MyCanvas::DrawTestPoly(wxDC& dc) @@ -412,13 +426,29 @@ void MyCanvas::DrawTestPoly(wxDC& dc) star[3] = wxPoint(40, 100); star[4] = wxPoint(140, 150); - dc.DrawText("You should see two (irregular) stars below, the left one " - "hatched", 10, 10); - dc.DrawText("except for the central region and the right " - "one entirely hatched", 10, 30); - - dc.DrawPolygon(WXSIZEOF(star), star); - dc.DrawPolygon(WXSIZEOF(star), star, 160, 0, wxWINDING_RULE); + dc.DrawText(_T("You should see two (irregular) stars below, the left one ") + _T("hatched"), 10, 10); + dc.DrawText(_T("except for the central region and the right ") + _T("one entirely hatched"), 10, 30); + dc.DrawText(_T("The third star only has a hatched outline"), 10, 50); + + dc.DrawPolygon(WXSIZEOF(star), star, 0, 30); + dc.DrawPolygon(WXSIZEOF(star), star, 160, 30, wxWINDING_RULE); + + wxPoint star2[10]; + star2[0] = wxPoint(0, 100); + star2[1] = wxPoint(-59, -81); + star2[2] = wxPoint(95, 31); + star2[3] = wxPoint(-95, 31); + star2[4] = wxPoint(59, -81); + star2[5] = wxPoint(0, 80); + star2[6] = wxPoint(-47, -64); + star2[7] = wxPoint(76, 24); + star2[8] = wxPoint(-76, 24); + star2[9] = wxPoint(47, -64); + int count[2] = {5, 5}; + + dc.DrawPolyPolygon(WXSIZEOF(count), count, star2, 450, 150); } void MyCanvas::DrawTestLines( int x, int y, int width, wxDC &dc ) @@ -428,7 +458,7 @@ void MyCanvas::DrawTestLines( int x, int y, int width, wxDC &dc ) dc.DrawText(wxString::Format(wxT("Testing lines of width %d"), width), x + 10, y - 10); dc.DrawRectangle( x+10, y+10, 100, 190 ); - dc.DrawText("Solid/dot/short dash/long dash/dot dash", x + 150, y + 10); + dc.DrawText(_T("Solid/dot/short dash/long dash/dot dash"), x + 150, y + 10); dc.SetPen( wxPen( wxT("black"), width, wxSOLID) ); dc.DrawLine( x+20, y+20, 100, y+20 ); dc.SetPen( wxPen( wxT("black"), width, wxDOT) ); @@ -440,7 +470,7 @@ void MyCanvas::DrawTestLines( int x, int y, int width, wxDC &dc ) dc.SetPen( wxPen( wxT("black"), width, wxDOT_DASH) ); dc.DrawLine( x+20, y+60, 100, y+60 ); - dc.DrawText("Misc hatches", x + 150, y + 70); + dc.DrawText(_T("Misc hatches"), x + 150, y + 70); dc.SetPen( wxPen( wxT("black"), width, wxBDIAGONAL_HATCH) ); dc.DrawLine( x+20, y+70, 100, y+70 ); dc.SetPen( wxPen( wxT("black"), width, wxCROSSDIAG_HATCH) ); @@ -454,20 +484,29 @@ void MyCanvas::DrawTestLines( int x, int y, int width, wxDC &dc ) dc.SetPen( wxPen( wxT("black"), width, wxVERTICAL_HATCH) ); dc.DrawLine( x+20, y+120, 100, y+120 ); - dc.DrawText("User dash", x + 150, y + 140); + dc.DrawText(_T("User dash"), x + 150, y + 140); wxPen ud( wxT("black"), width, wxUSER_DASH ); - wxDash dash1[1]; - dash1[0] = 0; - ud.SetDashes( 1, dash1 ); + wxDash dash1[6]; + dash1[0] = 8; // Long dash <---------+ + dash1[1] = 2; // Short gap | + dash1[2] = 3; // Short dash | + dash1[3] = 2; // Short gap | + dash1[4] = 3; // Short dash | + dash1[5] = 2; // Short gap and repeat + + ud.SetDashes( 6, dash1 ); + dc.SetPen( ud ); dc.DrawLine( x+20, y+140, 100, y+140 ); - dash1[0] = 1; - ud.SetDashes( 1, dash1 ); + dash1[0] = 5; // Make first dash shorter + ud.SetDashes( 6, dash1 ); + dc.SetPen( ud ); dc.DrawLine( x+20, y+150, 100, y+150 ); - dash1[0] = 2; - ud.SetDashes( 1, dash1 ); + dash1[2] = 5; // Make second dash longer + ud.SetDashes( 6, dash1 ); + dc.SetPen( ud ); dc.DrawLine( x+20, y+160, 100, y+160 ); - dash1[0] = 0x7F; - ud.SetDashes( 1, dash1 ); + dash1[4] = 5; // Make third dash longer + ud.SetDashes( 6, dash1 ); + dc.SetPen( ud ); dc.DrawLine( x+20, y+170, 100, y+170 ); } @@ -476,11 +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); @@ -492,7 +536,7 @@ void MyCanvas::DrawDefault(wxDC& dc) dc.SetPen(*wxTRANSPARENT_PEN); dc.SetBrush( *wxGREEN_BRUSH ); dc.DrawRectangle(x, 10, rectSize, rectSize); - dc.DrawBitmap(m_std_icon, x + 5, 15, TRUE); + dc.DrawBitmap(m_std_icon, x + 5, 15, true); x += rectSize + 10; dc.DrawRectangle(x, 10, rectSize, rectSize); dc.DrawIcon(m_std_icon, x + 5, 15); @@ -504,7 +548,7 @@ void MyCanvas::DrawDefault(wxDC& dc) //dc.SetBrush( *wxTRANSPARENT_BRUSH ); if (m_smile_bmp.Ok()) - dc.DrawBitmap(m_smile_bmp, x + rectSize - 20, rectSize - 10, TRUE); + dc.DrawBitmap(m_smile_bmp, x + rectSize - 20, rectSize - 10, true); dc.SetBrush( *wxBLACK_BRUSH ); dc.DrawRectangle( 0, 160, 1000, 300 ); @@ -627,7 +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; @@ -637,11 +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. @@ -675,9 +720,9 @@ void MyCanvas::DrawDefault(wxDC& dc) void MyCanvas::DrawText(wxDC& dc) { // set underlined font for testing - dc.SetFont( wxFont(12, wxMODERN, wxNORMAL, wxNORMAL, TRUE) ); - dc.DrawText( "This is text", 110, 10 ); - dc.DrawRotatedText( "That is text", 20, 10, -45 ); + dc.SetFont( wxFont(12, wxMODERN, wxNORMAL, wxNORMAL, true) ); + dc.DrawText( _T("This is text"), 110, 10 ); + dc.DrawRotatedText( _T("That is text"), 20, 10, -45 ); // use wxSWISS_FONT and not wxNORMAL_FONT as the latter can't be rotated // under Win9x (it is not TrueType) @@ -694,12 +739,12 @@ void MyCanvas::DrawText(wxDC& dc) dc.SetFont( wxFont( 18, wxSWISS, wxNORMAL, wxNORMAL ) ); - dc.DrawText( "This is Swiss 18pt text.", 110, 40 ); + dc.DrawText( _T("This is Swiss 18pt text."), 110, 40 ); long length; long height; long descent; - dc.GetTextExtent( "This is Swiss 18pt text.", &length, &height, &descent ); + dc.GetTextExtent( _T("This is Swiss 18pt text."), &length, &height, &descent ); text.Printf( wxT("Dimensions are length %ld, height %ld, descent %ld"), length, height, descent ); dc.DrawText( text, 110, 80 ); @@ -711,20 +756,20 @@ void MyCanvas::DrawText(wxDC& dc) // test the logical function effect wxCoord y = 150; dc.SetLogicalFunction(wxINVERT); - dc.DrawText( "There should be no text below", 110, 150 ); + dc.DrawText( _T("There should be no text below"), 110, 150 ); dc.DrawRectangle( 110, y, 100, height ); // twice drawn inverted should result in invisible y += height; - dc.DrawText( "Invisible text", 110, y ); + dc.DrawText( _T("Invisible text"), 110, y ); dc.DrawRectangle( 110, y, 100, height ); - dc.DrawText( "Invisible text", 110, y ); + dc.DrawText( _T("Invisible text"), 110, y ); dc.DrawRectangle( 110, y, 100, height ); dc.SetLogicalFunction(wxCOPY); y += height; dc.DrawRectangle( 110, y, 100, height ); - dc.DrawText( "Visible text", 110, y ); + dc.DrawText( _T("Visible text"), 110, y ); } static const struct @@ -752,14 +797,14 @@ static const struct void MyCanvas::DrawImages(wxDC& dc) { - dc.DrawText("original image", 0, 0); + dc.DrawText(_T("original image"), 0, 0); dc.DrawBitmap(*gs_bmpNoMask, 0, 20, 0); - dc.DrawText("with colour mask", 0, 100); - dc.DrawBitmap(*gs_bmpWithColMask, 0, 120, TRUE); - dc.DrawText("the mask image", 0, 200); + dc.DrawText(_T("with colour mask"), 0, 100); + dc.DrawBitmap(*gs_bmpWithColMask, 0, 120, true); + dc.DrawText(_T("the mask image"), 0, 200); dc.DrawBitmap(*gs_bmpMask, 0, 220, 0); - dc.DrawText("masked image", 0, 300); - dc.DrawBitmap(*gs_bmpWithMask, 0, 320, TRUE); + dc.DrawText(_T("masked image"), 0, 300); + dc.DrawBitmap(*gs_bmpWithMask, 0, 320, true); int cx = gs_bmpWithColMask->GetWidth(), cy = gs_bmpWithColMask->GetHeight(); @@ -772,7 +817,7 @@ void MyCanvas::DrawImages(wxDC& dc) dc.DrawText(rasterOperations[n].name, x, y - 20); memDC.SelectObject(*gs_bmpWithColMask); - dc.Blit(x, y, cx, cy, &memDC, 0, 0, rasterOperations[n].rop, TRUE); + dc.Blit(x, y, cx, cy, &memDC, 0, 0, rasterOperations[n].rop, true); } } @@ -818,19 +863,19 @@ void MyCanvas::DrawCircles(wxDC& dc) y = 100, r = 20; - dc.DrawText("Some circles", 0, y); + dc.DrawText(_T("Some circles"), 0, y); dc.DrawCircle(x, y, r); dc.DrawCircle(x + 2*r, y, r); dc.DrawCircle(x + 4*r, y, r); y += 2*r; - dc.DrawText("And ellipses", 0, y); + dc.DrawText(_T("And ellipses"), 0, y); dc.DrawEllipse(x - r, y, 2*r, r); dc.DrawEllipse(x + r, y, 2*r, r); dc.DrawEllipse(x + 3*r, y, 2*r, r); y += 2*r; - dc.DrawText("And arcs", 0, y); + dc.DrawText(_T("And arcs"), 0, y); dc.DrawArc(x - r, y, x + r, y, x, y); dc.DrawArc(x + 4*r, y, x + 2*r, y, x + 3*r, y); dc.DrawArc(x + 5*r, y, x + 5*r, y, x + 6*r, y); @@ -842,18 +887,136 @@ 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("You should see a red rect partly covered by a cyan one " - "on the left", 10, 5); - dc.DrawText("and 5 smileys from which 4 are partially clipped on the right", + dc.DrawText(_T("You should see a red rect partly covered by a cyan one ") + _T("on the left"), 10, 5); + dc.DrawText(_T("and 5 smileys from which 4 are partially clipped on the right"), 10, 5 + dc.GetCharHeight()); - dc.DrawText("The second copy should be identical but right part of it " - "should be offset by 10 pixels.", + dc.DrawText(_T("The second copy should be identical but right part of it ") + _T("should be offset by 10 pixels."), 10, 5 + 2*dc.GetCharHeight()); - DrawRegionsHelper(dc, 10, TRUE); - DrawRegionsHelper(dc, 350, FALSE); + DrawRegionsHelper(dc, 10, true); + DrawRegionsHelper(dc, 350, false); } void MyCanvas::DrawRegionsHelper(wxDC& dc, wxCoord x, bool firstTime) @@ -878,9 +1041,10 @@ void MyCanvas::DrawRegionsHelper(wxDC& dc, wxCoord x, bool firstTime) dc.DestroyClippingRegion(); wxRegion region(x + 110, y + 20, 100, 270); +#if !defined(__WXMOTIF__) && !defined(__WXMAC__) if ( !firstTime ) region.Offset(10, 10); - +#endif dc.SetClippingRegion(region); dc.SetBrush( *wxGREY_BRUSH ); @@ -888,11 +1052,11 @@ void MyCanvas::DrawRegionsHelper(wxDC& dc, wxCoord x, bool firstTime) if (m_smile_bmp.Ok()) { - dc.DrawBitmap( m_smile_bmp, x + 150, y + 150, TRUE ); - dc.DrawBitmap( m_smile_bmp, x + 130, y + 10, TRUE ); - dc.DrawBitmap( m_smile_bmp, x + 130, y + 280, TRUE ); - dc.DrawBitmap( m_smile_bmp, x + 100, y + 70, TRUE ); - dc.DrawBitmap( m_smile_bmp, x + 200, y + 70, TRUE ); + dc.DrawBitmap( m_smile_bmp, x + 150, y + 150, true ); + dc.DrawBitmap( m_smile_bmp, x + 130, y + 10, true ); + dc.DrawBitmap( m_smile_bmp, x + 130, y + 280, true ); + dc.DrawBitmap( m_smile_bmp, x + 100, y + 70, true ); + dc.DrawBitmap( m_smile_bmp, x + 200, y + 70, true ); } } @@ -913,16 +1077,21 @@ 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); } } + if ( m_clip ) + dc.SetClippingRegion(100, 100, 100, 100); + dc.Clear(); - if ( m_owner->m_textureBackground) { + if ( m_owner->m_textureBackground ) + { dc.SetPen(*wxMEDIUM_GREY_PEN); - for (int i=0; i<200; i++) + for ( int i = 0; i < 200; i++ ) dc.DrawLine(0, i*10, i*10, 0); } @@ -936,6 +1105,10 @@ void MyCanvas::OnPaint(wxPaintEvent &WXUNUSED(event)) DrawCircles(dc); break; + case Show_Splines: + DrawSplines(dc); + break; + case Show_Regions: DrawRegions(dc); break; @@ -966,11 +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); @@ -981,18 +1162,22 @@ 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) EVT_MENU (File_Quit, MyFrame::OnQuit) EVT_MENU (File_About, MyFrame::OnAbout) + EVT_MENU (File_Clip, MyFrame::OnClip) EVT_MENU_RANGE(MenuShow_First, MenuShow_Last, MyFrame::OnShow) @@ -1001,77 +1186,84 @@ END_EVENT_TABLE() // frame constructor MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) - : wxFrame((wxFrame *)NULL, -1, title, pos, size, + : wxFrame((wxFrame *)NULL, wxID_ANY, title, pos, size, wxDEFAULT_FRAME_STYLE | wxNO_FULL_REPAINT_ON_RESIZE) { // set the frame icon SetIcon(wxICON(mondrian)); wxMenu *menuFile = new wxMenu; - menuFile->Append(File_ShowDefault, "&Default screen\tF1"); - menuFile->Append(File_ShowText, "&Text screen\tF2"); - menuFile->Append(File_ShowLines, "&Lines screen\tF3"); - menuFile->Append(File_ShowBrushes, "&Brushes screen\tF4"); - menuFile->Append(File_ShowPolygons, "&Polygons screen\tF5"); - menuFile->Append(File_ShowMask, "&Mask screen\tF6"); - menuFile->Append(File_ShowOps, "&ROP screen\tF7"); - menuFile->Append(File_ShowRegions, "Re&gions screen\tF8"); - menuFile->Append(File_ShowCircles, "&Circles screen\tF9"); + menuFile->Append(File_ShowDefault, _T("&Default screen\tF1")); + menuFile->Append(File_ShowText, _T("&Text screen\tF2")); + menuFile->Append(File_ShowLines, _T("&Lines screen\tF3")); + menuFile->Append(File_ShowBrushes, _T("&Brushes screen\tF4")); + menuFile->Append(File_ShowPolygons, _T("&Polygons screen\tF5")); + menuFile->Append(File_ShowMask, _T("&Mask screen\tF6")); + 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(); - menuFile->Append(File_About, "&About...\tCtrl-A", "Show about dialog"); + menuFile->Append(File_About, _T("&About...\tCtrl-A"), _T("Show about dialog")); menuFile->AppendSeparator(); - menuFile->Append(File_Quit, "E&xit\tAlt-X", "Quit this program"); + menuFile->Append(File_Quit, _T("E&xit\tAlt-X"), _T("Quit this program")); wxMenu *menuMapMode = new wxMenu; - menuMapMode->Append( MapMode_Text, "&TEXT map mode" ); - menuMapMode->Append( MapMode_Lometric, "&LOMETRIC map mode" ); - menuMapMode->Append( MapMode_Twips, "T&WIPS map mode" ); - menuMapMode->Append( MapMode_Points, "&POINTS map mode" ); - menuMapMode->Append( MapMode_Metric, "&METRIC map mode" ); + menuMapMode->Append( MapMode_Text, _T("&TEXT map mode") ); + menuMapMode->Append( MapMode_Lometric, _T("&LOMETRIC map mode") ); + menuMapMode->Append( MapMode_Twips, _T("T&WIPS map mode") ); + menuMapMode->Append( MapMode_Points, _T("&POINTS map mode") ); + menuMapMode->Append( MapMode_Metric, _T("&METRIC map mode") ); wxMenu *menuUserScale = new wxMenu; - menuUserScale->Append( UserScale_StretchHoriz, "Stretch &horizontally\tCtrl-H" ); - menuUserScale->Append( UserScale_ShrinkHoriz, "Shrin&k horizontally\tCtrl-G" ); - menuUserScale->Append( UserScale_StretchVertic, "Stretch &vertically\tCtrl-V" ); - menuUserScale->Append( UserScale_ShrinkVertic, "&Shrink vertically\tCtrl-W" ); + menuUserScale->Append( UserScale_StretchHoriz, _T("Stretch &horizontally\tCtrl-H") ); + menuUserScale->Append( UserScale_ShrinkHoriz, _T("Shrin&k horizontally\tCtrl-G") ); + menuUserScale->Append( UserScale_StretchVertic, _T("Stretch &vertically\tCtrl-V") ); + menuUserScale->Append( UserScale_ShrinkVertic, _T("&Shrink vertically\tCtrl-W") ); menuUserScale->AppendSeparator(); - menuUserScale->Append( UserScale_Restore, "&Restore to normal\tCtrl-0" ); + menuUserScale->Append( UserScale_Restore, _T("&Restore to normal\tCtrl-0") ); wxMenu *menuAxis = new wxMenu; - menuAxis->Append( AxisMirror_Horiz, "Mirror horizontally\tCtrl-M", "", TRUE ); - menuAxis->Append( AxisMirror_Vertic, "Mirror vertically\tCtrl-N", "", 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, "Move &down\tCtrl-D" ); - menuLogical->Append( LogicalOrigin_MoveUp, "Move &up\tCtrl-U" ); - menuLogical->Append( LogicalOrigin_MoveLeft, "Move &right\tCtrl-L" ); - menuLogical->Append( LogicalOrigin_MoveRight, "Move &left\tCtrl-R" ); + menuLogical->Append( LogicalOrigin_MoveDown, _T("Move &down\tCtrl-D") ); + menuLogical->Append( LogicalOrigin_MoveUp, _T("Move &up\tCtrl-U") ); + menuLogical->Append( LogicalOrigin_MoveLeft, _T("Move &right\tCtrl-L") ); + menuLogical->Append( LogicalOrigin_MoveRight, _T("Move &left\tCtrl-R") ); menuLogical->AppendSeparator(); - menuLogical->Append( LogicalOrigin_Set, "Set to (&100, 100)\tShift-Ctrl-1" ); - menuLogical->Append( LogicalOrigin_Restore, "&Restore to normal\tShift-Ctrl-0" ); + menuLogical->Append( LogicalOrigin_Set, _T("Set to (&100, 100)\tShift-Ctrl-1") ); + menuLogical->Append( LogicalOrigin_Restore, _T("&Restore to normal\tShift-Ctrl-0") ); wxMenu *menuColour = new wxMenu; - menuColour->Append( Colour_TextForeground, "Text &foreground..." ); - menuColour->Append( Colour_TextBackground, "Text &background..." ); - menuColour->Append( Colour_Background, "Background &colour..." ); - menuColour->Append( Colour_BackgroundMode, "&Opaque/transparent\tCtrl-B", "", TRUE ); - menuColour->Append( Colour_TextureBackgound, "Draw textured back&ground\tCtrl-T", "", TRUE); +#if wxUSE_COLOURDLG + menuColour->Append( Colour_TextForeground, _T("Text &foreground...") ); + menuColour->Append( Colour_TextBackground, _T("Text &background...") ); + menuColour->Append( Colour_Background, _T("Background &colour...") ); +#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; - menuBar->Append(menuFile, "&File"); - menuBar->Append(menuMapMode, "&Mode"); - menuBar->Append(menuUserScale, "&Scale"); - menuBar->Append(menuAxis, "&Axis"); - menuBar->Append(menuLogical, "&Origin"); - menuBar->Append(menuColour, "&Colours"); + menuBar->Append(menuFile, _T("&File")); + menuBar->Append(menuMapMode, _T("&Mode")); + menuBar->Append(menuUserScale, _T("&Scale")); + menuBar->Append(menuAxis, _T("&Axis")); + menuBar->Append(menuLogical, _T("&Origin")); + menuBar->Append(menuColour, _T("&Colours")); // ... 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("Welcome to wxWindows!"); + SetStatusText(_T("Welcome to wxWidgets!")); +#endif // wxUSE_STATUSBAR m_mapMode = wxMM_TEXT; m_xUserScale = 1.0; @@ -1079,11 +1271,11 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) m_xLogicalOrigin = 0; m_yLogicalOrigin = 0; m_xAxisReversed = - m_yAxisReversed = FALSE; + m_yAxisReversed = false; m_backgroundMode = wxSOLID; m_colourForeground = *wxRED; m_colourBackground = *wxBLUE; - m_textureBackground = FALSE; + m_textureBackground = false; m_canvas = new MyCanvas( this ); m_canvas->SetScrollbars( 10, 10, 100, 240 ); @@ -1093,8 +1285,8 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event)) { - // TRUE is to force the frame to close - Close(TRUE); + // true is to force the frame to close + Close(true); } void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event)) @@ -1106,12 +1298,17 @@ void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event)) wxT("Copyright (c) Robert Roebling 1999") ); - wxMessageBox(msg, "About Drawing", wxOK | wxICON_INFORMATION, this); + wxMessageBox(msg, _T("About Drawing"), wxOK | wxICON_INFORMATION, this); +} + +void MyFrame::OnClip(wxCommandEvent& event) +{ + m_canvas->Clip(event.IsChecked()); } void MyFrame::OnShow(wxCommandEvent& event) { - m_canvas->Show((ScreenToShow)(event.GetId() - MenuShow_First)); + m_canvas->ToShow((ScreenToShow)(event.GetId() - MenuShow_First)); } void MyFrame::OnOption(wxCommandEvent& event) @@ -1179,6 +1376,7 @@ void MyFrame::OnOption(wxCommandEvent& event) m_xAxisReversed = !m_xAxisReversed; break; +#if wxUSE_COLOURDLG case Colour_TextForeground: m_colourForeground = SelectColour(); break; @@ -1194,6 +1392,8 @@ void MyFrame::OnOption(wxCommandEvent& event) } } break; +#endif // wxUSE_COLOURDLG + case Colour_BackgroundMode: m_backgroundMode = m_backgroundMode == wxSOLID ? wxTRANSPARENT : wxSOLID; @@ -1219,6 +1419,7 @@ void MyFrame::PrepareDC(wxDC& dc) dc.SetMapMode( m_mapMode ); } +#if wxUSE_COLOURDLG wxColour MyFrame::SelectColour() { wxColour col; @@ -1232,3 +1433,4 @@ wxColour MyFrame::SelectColour() return col; } +#endif // wxUSE_COLOURDLG