#include "wx/colordlg.h"
#include "wx/image.h"
#include "wx/artprov.h"
+#include "wx/dcgraph.h"
+#include "wx/overlay.h"
+#include "wx/graphics.h"
+#include "wx/filename.h"
+
+#define TEST_CAIRO_EVERYWHERE 0
// ----------------------------------------------------------------------------
-// ressources
+// resources
// ----------------------------------------------------------------------------
// the application icon
#include "mondrian.xpm"
#endif
-// ----------------------------------------------------------------------------
-// constants
-// ----------------------------------------------------------------------------
-
-// what do we show on screen (there are too many shapes to put them all on
-// screen simultaneously)
-enum ScreenToShow
-{
- Show_Default,
- Show_Text,
- Show_Lines,
- Show_Brushes,
- Show_Polygons,
- Show_Mask,
- Show_Ops,
- Show_Regions,
- Show_Circles,
- Show_Splines,
- Show_Gradient,
- Show_Max
-};
-
// ----------------------------------------------------------------------------
// global variables
// ----------------------------------------------------------------------------
void OnQuit(wxCommandEvent& event);
void OnAbout(wxCommandEvent& event);
void OnClip(wxCommandEvent& event);
+#if wxUSE_GRAPHICS_CONTEXT
+ void OnGraphicContext(wxCommandEvent& event);
+#endif
void OnShow(wxCommandEvent &event);
void OnOption(wxCommandEvent &event);
int m_backgroundMode;
int m_textureBackground;
- int m_mapMode;
+ wxMappingMode m_mapMode;
double m_xUserScale;
double m_yUserScale;
int m_xLogicalOrigin;
void OnPaint(wxPaintEvent &event);
void OnMouseMove(wxMouseEvent &event);
+ void OnMouseDown(wxMouseEvent &event);
+ void OnMouseUp(wxMouseEvent &event);
- void ToShow(ScreenToShow show) { m_show = show; Refresh(); }
+ void ToShow(int show) { m_show = show; Refresh(); }
// set or remove the clipping region
void Clip(bool clip) { m_clip = clip; Refresh(); }
+#if wxUSE_GRAPHICS_CONTEXT
+ void UseGraphicContext(bool use) { m_useContext = use; Refresh(); }
+#endif
protected:
+ enum DrawMode
+ {
+ Draw_Normal,
+ Draw_Stretch
+ };
+
void DrawTestLines( int x, int y, int width, wxDC &dc );
void DrawTestPoly(wxDC& dc);
void DrawTestBrushes(wxDC& dc);
void DrawText(wxDC& dc);
- void DrawImages(wxDC& dc);
+ void DrawImages(wxDC& dc, DrawMode mode);
void DrawWithLogicalOps(wxDC& dc);
+#if wxUSE_GRAPHICS_CONTEXT
+ void DrawAlpha(wxDC& dc);
+ void DrawGraphics(wxGraphicsContext* gc);
+#endif
void DrawRegions(wxDC& dc);
void DrawCircles(wxDC& dc);
void DrawSplines(wxDC& dc);
private:
MyFrame *m_owner;
- ScreenToShow m_show;
+ int m_show;
wxBitmap m_smile_bmp;
wxIcon m_std_icon;
bool m_clip;
+ wxOverlay m_overlay;
+ bool m_rubberBand;
+ wxPoint m_anchorpoint;
+ wxPoint m_currentpoint;
+#if wxUSE_GRAPHICS_CONTEXT
+ bool m_useContext ;
+#endif
DECLARE_EVENT_TABLE()
};
File_ShowBrushes,
File_ShowPolygons,
File_ShowMask,
+ File_ShowMaskStretch,
File_ShowOps,
File_ShowRegions,
File_ShowCircles,
File_ShowSplines,
+#if wxUSE_GRAPHICS_CONTEXT
+ File_ShowAlpha,
+ File_ShowGraphics,
+#endif
File_ShowGradients,
MenuShow_Last = File_ShowGradients,
File_Clip,
+#if wxUSE_GRAPHICS_CONTEXT
+ File_GraphicContext,
+#endif
MenuOption_First,
gs_bmp36 = new wxBitmap;
wxPathList pathList;
- pathList.Add(_T("."));
- pathList.Add(_T(".."));
-
- wxString path = pathList.FindValidPath(_T("pat4.bmp"));
+ // special hack for Unix in-tree sample build, don't do this in real
+ // programs, use wxStandardPaths instead
+ pathList.Add(wxFileName(argv[0]).GetPath());
+ pathList.Add(wxT("."));
+ pathList.Add(wxT(".."));
+ pathList.Add(wxT("../.."));
+
+ wxString path = pathList.FindValidPath(wxT("pat4.bmp"));
if ( !path )
return false;
wxMask* mask4 = new wxMask(*gs_bmp4_mono, *wxBLACK);
gs_bmp4_mono->SetMask(mask4);
- path = pathList.FindValidPath(_T("pat36.bmp"));
+ path = pathList.FindValidPath(wxT("pat36.bmp"));
if ( !path )
return false;
gs_bmp36->LoadFile(path, wxBITMAP_TYPE_BMP);
wxMask* mask36 = new wxMask(*gs_bmp36, *wxBLACK);
gs_bmp36->SetMask(mask36);
- path = pathList.FindValidPath(_T("image.bmp"));
+ path = pathList.FindValidPath(wxT("image.bmp"));
if ( !path )
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(_T("mask.bmp"));
+ path = pathList.FindValidPath(wxT("mask.bmp"));
if ( !path )
return false;
gs_bmpMask->LoadFile(path, wxBITMAP_TYPE_BMP);
// `Main program' equivalent: the program execution "starts" here
bool MyApp::OnInit()
{
+ if ( !wxApp::OnInit() )
+ return false;
+
// Create the main application window
- MyFrame *frame = new MyFrame(_T("Drawing sample"),
+ MyFrame *frame = new MyFrame(wxT("Drawing sample"),
wxPoint(50, 50), wxSize(550, 340));
// Show it and tell the application that it's our main window
wxT("for this sample from the current or parent ")
wxT("directory, please copy them there."));
- // stop here
- DeleteBitmaps();
-
- return false;
+ // still continue, the sample can be used without images too if they're
+ // missing for whatever reason
}
- // ok, continue
return true;
}
BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
EVT_PAINT (MyCanvas::OnPaint)
EVT_MOTION (MyCanvas::OnMouseMove)
+ EVT_LEFT_DOWN (MyCanvas::OnMouseDown)
+ EVT_LEFT_UP (MyCanvas::OnMouseUp)
END_EVENT_TABLE()
#include "smile.xpm"
wxHSCROLL | wxVSCROLL | wxNO_FULL_REPAINT_ON_RESIZE)
{
m_owner = parent;
- m_show = Show_Default;
+ m_show = File_ShowDefault;
m_smile_bmp = wxBitmap(smile_xpm);
m_std_icon = wxArtProvider::GetIcon(wxART_INFORMATION);
m_clip = false;
+ m_rubberBand = false;
+#if wxUSE_GRAPHICS_CONTEXT
+ m_useContext = false;
+#endif
}
void MyCanvas::DrawTestBrushes(wxDC& dc)
dc.SetBrush(wxBrush(*wxGREEN, wxSOLID));
dc.DrawRectangle(x, y, WIDTH, HEIGHT);
- dc.DrawText(_T("Solid green"), x + 10, y + 10);
+ dc.DrawText(wxT("Solid green"), x + 10, y + 10);
y += HEIGHT;
dc.SetBrush(wxBrush(*wxRED, wxCROSSDIAG_HATCH));
dc.DrawRectangle(x, y, WIDTH, HEIGHT);
- dc.DrawText(_T("Hatched red"), x + 10, y + 10);
+ dc.DrawText(wxT("Hatched red"), x + 10, y + 10);
y += HEIGHT;
dc.SetBrush(wxBrush(*gs_bmpMask));
dc.DrawRectangle(x, y, WIDTH, HEIGHT);
- dc.DrawText(_T("Stipple mono"), x + 10, y + 10);
+ dc.DrawText(wxT("Stipple mono"), x + 10, y + 10);
y += HEIGHT;
dc.SetBrush(wxBrush(*gs_bmpNoMask));
dc.DrawRectangle(x, y, WIDTH, HEIGHT);
- dc.DrawText(_T("Stipple colour"), x + 10, y + 10);
+ dc.DrawText(wxT("Stipple colour"), x + 10, y + 10);
}
void MyCanvas::DrawTestPoly(wxDC& dc)
star[3] = wxPoint(40, 100);
star[4] = wxPoint(140, 150);
- 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.DrawText(wxT("You should see two (irregular) stars below, the left one ")
+ wxT("hatched"), 10, 10);
+ dc.DrawText(wxT("except for the central region and the right ")
+ wxT("one entirely hatched"), 10, 30);
+ dc.DrawText(wxT("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);
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(_T("Solid/dot/short dash/long dash/dot dash"), x + 150, y + 10);
+ dc.DrawText(wxT("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) );
dc.SetPen( wxPen( wxT("black"), width, wxDOT_DASH) );
dc.DrawLine( x+20, y+60, 100, y+60 );
- dc.DrawText(_T("Misc hatches"), x + 150, y + 70);
+ dc.DrawText(wxT("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) );
dc.SetPen( wxPen( wxT("black"), width, wxVERTICAL_HATCH) );
dc.DrawLine( x+20, y+120, 100, y+120 );
- dc.DrawText(_T("User dash"), x + 150, y + 140);
+ dc.DrawText(wxT("User dash"), x + 150, y + 140);
wxPen ud( wxT("black"), width, wxUSER_DASH );
wxDash dash1[6];
dash1[0] = 8; // Long dash <---------+
{
// set underlined font for testing
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 );
+ dc.DrawText( wxT("This is text"), 110, 10 );
+ dc.DrawRotatedText( wxT("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)
dc.SetFont( wxFont( 18, wxSWISS, wxNORMAL, wxNORMAL ) );
- dc.DrawText( _T("This is Swiss 18pt text."), 110, 40 );
+ dc.DrawText( wxT("This is Swiss 18pt text."), 110, 40 );
- long length;
- long height;
- long descent;
- dc.GetTextExtent( _T("This is Swiss 18pt text."), &length, &height, &descent );
+ wxCoord length;
+ wxCoord height;
+ wxCoord descent;
+ dc.GetTextExtent( wxT("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 );
// test the logical function effect
wxCoord y = 150;
dc.SetLogicalFunction(wxINVERT);
- dc.DrawText( _T("There should be no text below"), 110, 150 );
+ // text drawing should ignore logical function
+ dc.DrawText( wxT("There should be a text below"), 110, 150 );
dc.DrawRectangle( 110, y, 100, height );
- // twice drawn inverted should result in invisible
y += height;
- dc.DrawText( _T("Invisible text"), 110, y );
+ dc.DrawText( wxT("Visible text"), 110, y );
dc.DrawRectangle( 110, y, 100, height );
- dc.DrawText( _T("Invisible text"), 110, y );
+ dc.DrawText( wxT("Visible text"), 110, y );
dc.DrawRectangle( 110, y, 100, height );
dc.SetLogicalFunction(wxCOPY);
y += height;
dc.DrawRectangle( 110, y, 100, height );
- dc.DrawText( _T("Visible text"), 110, y );
+ dc.DrawText( wxT("Another visible text"), 110, y );
}
static const struct
{
const wxChar *name;
- int rop;
+ wxRasterOperationMode rop;
} rasterOperations[] =
{
{ wxT("wxAND"), wxAND },
{ wxT("wxXOR"), wxXOR },
};
-void MyCanvas::DrawImages(wxDC& dc)
+void MyCanvas::DrawImages(wxDC& dc, DrawMode mode)
{
- dc.DrawText(_T("original image"), 0, 0);
+ dc.DrawText(wxT("original image"), 0, 0);
dc.DrawBitmap(*gs_bmpNoMask, 0, 20, 0);
- dc.DrawText(_T("with colour mask"), 0, 100);
+ dc.DrawText(wxT("with colour mask"), 0, 100);
dc.DrawBitmap(*gs_bmpWithColMask, 0, 120, true);
- dc.DrawText(_T("the mask image"), 0, 200);
+ dc.DrawText(wxT("the mask image"), 0, 200);
dc.DrawBitmap(*gs_bmpMask, 0, 220, 0);
- dc.DrawText(_T("masked image"), 0, 300);
+ dc.DrawText(wxT("masked image"), 0, 300);
dc.DrawBitmap(*gs_bmpWithMask, 0, 320, true);
int cx = gs_bmpWithColMask->GetWidth(),
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);
+ if ( mode == Draw_Stretch )
+ {
+ dc.StretchBlit(x, y, cx, cy, &memDC, 0, 0, cx/2, cy/2,
+ rasterOperations[n].rop, true);
+ }
+ else
+ {
+ dc.Blit(x, y, cx, cy, &memDC, 0, 0, rasterOperations[n].rop, true);
+ }
}
}
}
}
+#if wxUSE_GRAPHICS_CONTEXT
+#ifdef __WXGTK20__
+void MyCanvas::DrawAlpha(wxDC& WXUNUSED(dummyDC))
+#else
+void MyCanvas::DrawAlpha(wxDC& dc)
+#endif
+{
+#ifdef __WXGTK__
+ wxGCDC dc( this );
+ PrepareDC( dc );
+#endif
+
+ wxDouble margin = 20 ;
+ wxDouble width = 180 ;
+ wxDouble radius = 30 ;
+
+ dc.SetPen( wxPen( wxColour( 128, 0, 0, 255 ),12, wxSOLID));
+ dc.SetBrush( wxBrush( wxColour( 255, 0, 0, 255),wxSOLID));
+
+ wxRect r(margin,margin+width*0.66,width,width) ;
+
+ dc.DrawRoundedRectangle( r.x, r.y, r.width, r.width, radius ) ;
+
+ dc.SetPen( wxPen( wxColour( 0, 0, 128, 255 ),12, wxSOLID));
+ dc.SetBrush( wxBrush( wxColour( 0, 0, 255, 255),wxSOLID));
+
+ r.Offset( width * 0.8 , - width * 0.66 ) ;
+
+ dc.DrawRoundedRectangle( r.x, r.y, r.width, r.width, radius ) ;
+
+ dc.SetPen( wxPen( wxColour( 128, 128, 0, 255 ),12, wxSOLID));
+ dc.SetBrush( wxBrush( wxColour( 192, 192, 0, 255),wxSOLID));
+
+ r.Offset( width * 0.8 , width *0.5 ) ;
+
+ dc.DrawRoundedRectangle( r.x, r.y, r.width, r.width, radius ) ;
+
+ dc.SetPen( *wxTRANSPARENT_PEN ) ;
+ dc.SetBrush( wxBrush( wxColour(255,255,128,128) ) );
+ dc.DrawRoundedRectangle( 0 , margin + width / 2 , width * 3 , 100 , radius) ;
+
+ dc.SetTextForeground( wxColour(255,255,0,128) );
+ dc.SetFont( wxFont( 40, wxFONTFAMILY_SWISS, wxFONTSTYLE_ITALIC, wxFONTWEIGHT_NORMAL ) );
+ dc.DrawText( wxT("Hello!"), 120, 80 );
+}
+
+#endif
+
+#if wxUSE_GRAPHICS_CONTEXT
+
+const int BASE = 80.0;
+const int BASE2 = BASE/2;
+const int BASE4 = BASE/4;
+
+static inline double DegToRad(double deg) { return (deg * M_PI) / 180.0; }
+
+
+// modeled along Robin Dunn's GraphicsContext.py sample
+
+void MyCanvas::DrawGraphics(wxGraphicsContext* gc)
+{
+ wxFont font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
+ gc->SetFont(font,*wxBLACK);
+
+ // make a path that contains a circle and some lines, centered at 0,0
+ wxGraphicsPath path = gc->CreatePath() ;
+ path.AddCircle( 0, 0, BASE2 );
+ path.MoveToPoint(0, -BASE2);
+ path.AddLineToPoint(0, BASE2);
+ path.MoveToPoint(-BASE2, 0);
+ path.AddLineToPoint(BASE2, 0);
+ path.CloseSubpath();
+ path.AddRectangle(-BASE4, -BASE4/2, BASE2, BASE4);
+
+ // Now use that path to demonstrate various capbilites of the grpahics context
+ gc->PushState(); // save current translation/scale/other state
+ gc->Translate(60, 75); // reposition the context origin
+
+ gc->SetPen(wxPen("navy", 1));
+ gc->SetBrush(wxBrush("pink"));
+
+ for( int i = 0 ; i < 3 ; ++i )
+ {
+ wxString label;
+ switch( i )
+ {
+ case 0 :
+ label = "StrokePath";
+ break;
+ case 1 :
+ label = "FillPath";
+ break;
+ case 2 :
+ label = "DrawPath";
+ break;
+ }
+ wxDouble w, h;
+ gc->GetTextExtent(label, &w, &h, NULL, NULL);
+ gc->DrawText(label, -w/2, -BASE2-h-4);
+ switch( i )
+ {
+ case 0 :
+ gc->StrokePath(path);
+ break;
+ case 1 :
+ gc->FillPath(path);
+ break;
+ case 2 :
+ gc->DrawPath(path);
+ break;
+ }
+ gc->Translate(2*BASE, 0);
+ }
+
+ gc->PopState(); // restore saved state
+ gc->PushState(); // save it again
+ gc->Translate(60, 200); // offset to the lower part of the window
+
+ gc->DrawText("Scale", 0, -BASE2);
+ gc->Translate(0, 20);
+
+ gc->SetBrush(wxBrush(wxColour(178, 34, 34, 128)));// 128 == half transparent
+ for( int i = 0 ; i < 8 ; ++i )
+ {
+ gc->Scale(1.08, 1.08); // increase scale by 8%
+ gc->Translate(5,5);
+ gc->DrawPath(path);
+ }
+
+ gc->PopState(); // restore saved state
+ gc->PushState(); // save it again
+ gc->Translate(400, 200);
+
+ gc->DrawText("Rotate", 0, -BASE2);
+
+ // Move the origin over to the next location
+ gc->Translate(0, 75);
+
+ // draw our path again, rotating it about the central point,
+ // and changing colors as we go
+ for ( int angle = 0 ; angle < 360 ; angle += 30 )
+ {
+ gc->PushState(); // save this new current state so we can
+ // pop back to it at the end of the loop
+ wxImage::RGBValue val = wxImage::HSVtoRGB(wxImage::HSVValue(float(angle)/360, 1, 1));
+ gc->SetBrush(wxBrush(wxColour(val.red, val.green, val.blue, 64)));
+ gc->SetPen(wxPen(wxColour(val.red, val.green, val.blue, 128)));
+
+ // use translate to artfully reposition each drawn path
+ gc->Translate(1.5 * BASE2 * cos(DegToRad(angle)),
+ 1.5 * BASE2 * sin(DegToRad(angle)));
+
+ // use Rotate to rotate the path
+ gc->Rotate(DegToRad(angle));
+
+ // now draw it
+ gc->DrawPath(path);
+ gc->PopState();
+ }
+ gc->PopState();
+}
+#endif
+
void MyCanvas::DrawCircles(wxDC& dc)
{
int x = 100,
dc.SetPen( *wxRED_PEN );
dc.SetBrush( *wxGREEN_BRUSH );
- dc.DrawText(_T("Some circles"), 0, y);
+ dc.DrawText(wxT("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(_T("And ellipses"), 0, y);
+ dc.DrawText(wxT("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(_T("And arcs"), 0, y);
+ dc.DrawText(wxT("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);
dc.DrawEllipticArc(x + r, y, 2*r, r, 90, 180);
dc.DrawEllipticArc(x + 3*r, y, 2*r, r, 180, 270);
dc.DrawEllipticArc(x + 5*r, y, 2*r, r, 270, 360);
-
+
// same as above, just transparent brush
-
+
dc.SetPen( *wxRED_PEN );
dc.SetBrush( *wxTRANSPARENT_BRUSH );
y += 2*r;
- dc.DrawText(_T("Some circles"), 0, y);
+ dc.DrawText(wxT("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(_T("And ellipses"), 0, y);
+ dc.DrawText(wxT("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(_T("And arcs"), 0, y);
+ dc.DrawText(wxT("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);
dc.DrawEllipticArc(x + r, y, 2*r, r, 90, 180);
dc.DrawEllipticArc(x + 3*r, y, 2*r, r, 180, 270);
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);
+ dc.DrawText(wxT("Some splines"), 10, 5);
// values are hardcoded rather than randomly generated
// so the output can be compared between native
}
#else
- dc.DrawText(_T("Splines not supported."), 10, 5);
+ dc.DrawText(wxT("Splines not supported."), 10, 5);
#endif
}
void MyCanvas::DrawGradients(wxDC& dc)
{
+ static const int TEXT_HEIGHT = 15;
+
// LHS: linear
- wxRect r(10, 10, 100, 100);
+ wxRect r(10, 10, 50, 50);
+ dc.DrawText(wxT("wxRIGHT"), r.x, r.y);
+ r.Offset(0, TEXT_HEIGHT);
dc.GradientFillLinear(r, *wxWHITE, *wxBLUE, wxRIGHT);
- r.Offset(0, 110);
+ r.Offset(0, r.height + 10);
+ dc.DrawText(wxT("wxLEFT"), r.x, r.y);
+ r.Offset(0, TEXT_HEIGHT);
dc.GradientFillLinear(r, *wxWHITE, *wxBLUE, wxLEFT);
- r.Offset(0, 110);
+ r.Offset(0, r.height + 10);
+ dc.DrawText(wxT("wxDOWN"), r.x, r.y);
+ r.Offset(0, TEXT_HEIGHT);
dc.GradientFillLinear(r, *wxWHITE, *wxBLUE, wxDOWN);
- r.Offset(0, 110);
+ r.Offset(0, r.height + 10);
+ dc.DrawText(wxT("wxUP"), r.x, r.y);
+ r.Offset(0, TEXT_HEIGHT);
dc.GradientFillLinear(r, *wxWHITE, *wxBLUE, wxUP);
// RHS: concentric
- r = wxRect(200, 10, 100, 100);
+ r = wxRect(200, 10, 50, 50);
+ dc.DrawText(wxT("Blue inside"), r.x, r.y);
+ r.Offset(0, TEXT_HEIGHT);
dc.GradientFillConcentric(r, *wxBLUE, *wxWHITE);
- r.Offset(0, 110);
+ r.Offset(0, r.height + 10);
+ dc.DrawText(wxT("White inside"), r.x, r.y);
+ r.Offset(0, TEXT_HEIGHT);
dc.GradientFillConcentric(r, *wxWHITE, *wxBLUE);
- r.Offset(0, 110);
+ r.Offset(0, r.height + 10);
+ dc.DrawText(wxT("Blue in top left corner"), r.x, r.y);
+ r.Offset(0, TEXT_HEIGHT);
dc.GradientFillConcentric(r, *wxBLUE, *wxWHITE, wxPoint(0, 0));
- r.Offset(0, 110);
- dc.GradientFillConcentric(r, *wxBLUE, *wxWHITE, wxPoint(100, 100));
+ r.Offset(0, r.height + 10);
+ dc.DrawText(wxT("Blue in bottom right corner"), r.x, r.y);
+ r.Offset(0, TEXT_HEIGHT);
+ dc.GradientFillConcentric(r, *wxBLUE, *wxWHITE, wxPoint(r.width, r.height));
+
+ // check that the area filled by the gradient is exactly the interior of
+ // the rectangle
+ r.x = 350;
+ r.y = 30;
+ dc.DrawText("The interior should be filled but", r.x, r.y);
+ r.y += 15;
+ dc.DrawText(" the red border should remain visible:", r.x, r.y);
+ r.y += 15;
+
+ r.width =
+ r.height = 50;
+ wxRect r2 = r;
+ r2.x += 60;
+ wxRect r3 = r;
+ r3.y += 60;
+ wxRect r4 = r2;
+ r4.y += 60;
+ dc.SetPen(wxPen(wxColour(255, 0, 0)));
+ dc.DrawRectangle(r);
+ r.Deflate(1);
+ dc.GradientFillLinear(r, wxColour(0,255,0), wxColour(0,0,0), wxNORTH);
+ dc.DrawRectangle(r2);
+ r2.Deflate(1);
+ dc.GradientFillLinear(r2, wxColour(0,0,0), wxColour(0,255,0), wxSOUTH);
+ dc.DrawRectangle(r3);
+ r3.Deflate(1);
+ dc.GradientFillLinear(r3, wxColour(0,255,0), wxColour(0,0,0), wxEAST);
+ dc.DrawRectangle(r4);
+ r4.Deflate(1);
+ dc.GradientFillLinear(r4, wxColour(0,0,0), wxColour(0,255,0), wxWEST);
}
void MyCanvas::DrawRegions(wxDC& dc)
{
- 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"),
+ dc.DrawText(wxT("You should see a red rect partly covered by a cyan one ")
+ wxT("on the left"), 10, 5);
+ dc.DrawText(wxT("and 5 smileys from which 4 are partially clipped on the right"),
10, 5 + dc.GetCharHeight());
- dc.DrawText(_T("The second copy should be identical but right part of it ")
- _T("should be offset by 10 pixels."),
+ dc.DrawText(wxT("The second copy should be identical but right part of it ")
+ wxT("should be offset by 10 pixels."),
10, 5 + 2*dc.GetCharHeight());
DrawRegionsHelper(dc, 10, true);
dc.DestroyClippingRegion();
wxRegion region(x + 110, y + 20, 100, 270);
-#if !defined(__WXMOTIF__) && !defined(__WXMAC__)
+#if !defined(__WXMOTIF__)
if ( !firstTime )
region.Offset(10, 10);
#endif
- dc.SetClippingRegion(region);
+ dc.SetDeviceClippingRegion(region);
dc.SetBrush( *wxGREY_BRUSH );
dc.DrawRectangle( x, y, 310, 310 );
}
}
+#if TEST_CAIRO_EVERYWHERE
+extern wxGraphicsRenderer* gCairoRenderer;
+#endif
+
void MyCanvas::OnPaint(wxPaintEvent &WXUNUSED(event))
{
- wxPaintDC dc(this);
+ wxPaintDC pdc(this);
+
+#if wxUSE_GRAPHICS_CONTEXT
+#if TEST_CAIRO_EVERYWHERE
+ wxGCDC gdc;
+ gdc.SetGraphicsContext( gCairoRenderer->CreateContext( pdc ) );
+#else
+ wxGCDC gdc( pdc ) ;
+#endif
+ wxDC &dc = m_useContext ? (wxDC&) gdc : (wxDC&) pdc ;
+#else
+ wxDC &dc = pdc ;
+#endif
+
PrepareDC(dc);
m_owner->PrepareDC(dc);
switch ( m_show )
{
- case Show_Default:
+ case File_ShowDefault:
DrawDefault(dc);
break;
- case Show_Circles:
+ case File_ShowCircles:
DrawCircles(dc);
break;
- case Show_Splines:
+ case File_ShowSplines:
DrawSplines(dc);
break;
- case Show_Regions:
+ case File_ShowRegions:
DrawRegions(dc);
break;
- case Show_Text:
+ case File_ShowText:
DrawText(dc);
break;
- case Show_Lines:
+ case File_ShowLines:
DrawTestLines( 0, 100, 0, dc );
DrawTestLines( 0, 320, 1, dc );
DrawTestLines( 0, 540, 2, dc );
DrawTestLines( 0, 760, 6, dc );
break;
- case Show_Brushes:
+ case File_ShowBrushes:
DrawTestBrushes(dc);
break;
- case Show_Polygons:
+ case File_ShowPolygons:
DrawTestPoly(dc);
break;
- case Show_Mask:
- DrawImages(dc);
+ case File_ShowMask:
+ DrawImages(dc, Draw_Normal);
+ break;
+
+ case File_ShowMaskStretch:
+ DrawImages(dc, Draw_Stretch);
break;
- case Show_Ops:
+ case File_ShowOps:
DrawWithLogicalOps(dc);
break;
- case Show_Gradient:
+#if wxUSE_GRAPHICS_CONTEXT
+ case File_ShowAlpha:
+ DrawAlpha(dc);
+ break;
+ case File_ShowGraphics:
+ DrawGraphics(gdc.GetGraphicsContext());
+ break;
+#endif
+
+ case File_ShowGradients:
DrawGradients(dc);
break;
void MyCanvas::OnMouseMove(wxMouseEvent &event)
{
#if wxUSE_STATUSBAR
- wxClientDC dc(this);
- PrepareDC(dc);
- m_owner->PrepareDC(dc);
-
- wxPoint pos = event.GetPosition();
- long x = dc.DeviceToLogicalX( pos.x );
- long y = dc.DeviceToLogicalY( pos.y );
- wxString str;
- str.Printf( wxT("Current mouse position: %d,%d"), (int)x, (int)y );
- m_owner->SetStatusText( str );
+ {
+ wxClientDC dc(this);
+ PrepareDC(dc);
+ m_owner->PrepareDC(dc);
+
+ wxPoint pos = event.GetPosition();
+ long x = dc.DeviceToLogicalX( pos.x );
+ long y = dc.DeviceToLogicalY( pos.y );
+ wxString str;
+ str.Printf( wxT("Current mouse position: %d,%d"), (int)x, (int)y );
+ m_owner->SetStatusText( str );
+ }
+
+ if ( m_rubberBand )
+ {
+ int x,y, xx, yy ;
+ event.GetPosition(&x,&y);
+ CalcUnscrolledPosition( x, y, &xx, &yy );
+ m_currentpoint = wxPoint( xx , yy ) ;
+ wxRect newrect ( m_anchorpoint , m_currentpoint ) ;
+
+ wxClientDC dc( this ) ;
+ PrepareDC( dc ) ;
+
+ wxDCOverlay overlaydc( m_overlay, &dc );
+ overlaydc.Clear();
+#ifdef __WXMAC__
+ dc.SetPen( *wxGREY_PEN );
+ dc.SetBrush( wxColour( 192,192,192,64 ) );
+#else
+ dc.SetPen( wxPen( *wxLIGHT_GREY, 2, wxSOLID ) );
+ dc.SetBrush( *wxTRANSPARENT_BRUSH );
+#endif
+ dc.DrawRectangle( newrect );
+ }
#else
wxUnusedVar(event);
#endif // wxUSE_STATUSBAR
}
+void MyCanvas::OnMouseDown(wxMouseEvent &event)
+{
+ int x,y,xx,yy ;
+ event.GetPosition(&x,&y);
+ CalcUnscrolledPosition( x, y, &xx, &yy );
+ m_anchorpoint = wxPoint( xx , yy ) ;
+ m_currentpoint = m_anchorpoint ;
+ m_rubberBand = true ;
+ CaptureMouse() ;
+}
+
+void MyCanvas::OnMouseUp(wxMouseEvent &event)
+{
+ if ( m_rubberBand )
+ {
+ ReleaseMouse();
+ {
+ wxClientDC dc( this );
+ PrepareDC( dc );
+ wxDCOverlay overlaydc( m_overlay, &dc );
+ overlaydc.Clear();
+ }
+ m_overlay.Reset();
+ m_rubberBand = false;
+
+ int x,y,xx,yy ;
+ event.GetPosition(&x,&y);
+ CalcUnscrolledPosition( x, y, &xx, &yy );
+
+ wxString str;
+ str.Printf( wxT("Rectangle selection from %d,%d to %d,%d"),
+ m_anchorpoint.x, m_anchorpoint.y , (int)xx, (int)yy );
+ wxMessageBox( str , wxT("Rubber-Banding") );
+
+ }
+}
+
// ----------------------------------------------------------------------------
// MyFrame
// ----------------------------------------------------------------------------
EVT_MENU (File_Quit, MyFrame::OnQuit)
EVT_MENU (File_About, MyFrame::OnAbout)
EVT_MENU (File_Clip, MyFrame::OnClip)
+#if wxUSE_GRAPHICS_CONTEXT
+ EVT_MENU (File_GraphicContext, MyFrame::OnGraphicContext)
+#endif
EVT_MENU_RANGE(MenuShow_First, MenuShow_Last, MyFrame::OnShow)
SetIcon(wxICON(mondrian));
wxMenu *menuFile = new wxMenu;
- 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->Append(File_ShowDefault, wxT("&Default screen\tF1"));
+ menuFile->Append(File_ShowText, wxT("&Text screen\tF2"));
+ menuFile->Append(File_ShowLines, wxT("&Lines screen\tF3"));
+ menuFile->Append(File_ShowBrushes, wxT("&Brushes screen\tF4"));
+ menuFile->Append(File_ShowPolygons, wxT("&Polygons screen\tF5"));
+ menuFile->Append(File_ShowMask, wxT("&Mask screen\tF6"));
+ menuFile->Append(File_ShowMaskStretch, wxT("1/&2 scaled mask\tShift-F6"));
+ menuFile->Append(File_ShowOps, wxT("&Raster operations screen\tF7"));
+ menuFile->Append(File_ShowRegions, wxT("Re&gions screen\tF8"));
+ menuFile->Append(File_ShowCircles, wxT("&Circles screen\tF9"));
+#if wxUSE_GRAPHICS_CONTEXT
+ menuFile->Append(File_ShowAlpha, wxT("&Alpha screen\tF10"));
+#endif
+ menuFile->Append(File_ShowSplines, wxT("&Splines screen\tF11"));
+ menuFile->Append(File_ShowGradients, wxT("&Gradients screen\tF12"));
+#if wxUSE_GRAPHICS_CONTEXT
+ menuFile->Append(File_ShowGraphics, wxT("&Graphics screen"));
+#endif
menuFile->AppendSeparator();
- menuFile->AppendCheckItem(File_Clip, _T("&Clip\tCtrl-C"), _T("Clip/unclip drawing"));
+ menuFile->AppendCheckItem(File_Clip, wxT("&Clip\tCtrl-C"), wxT("Clip/unclip drawing"));
+#if wxUSE_GRAPHICS_CONTEXT
+ menuFile->AppendCheckItem(File_GraphicContext, wxT("&Use GraphicContext\tCtrl-Y"), wxT("Use GraphicContext"));
+#endif
menuFile->AppendSeparator();
- menuFile->Append(File_About, _T("&About...\tCtrl-A"), _T("Show about dialog"));
+ menuFile->Append(File_About, wxT("&About...\tCtrl-A"), wxT("Show about dialog"));
menuFile->AppendSeparator();
- menuFile->Append(File_Quit, _T("E&xit\tAlt-X"), _T("Quit this program"));
+ menuFile->Append(File_Quit, wxT("E&xit\tAlt-X"), wxT("Quit this program"));
wxMenu *menuMapMode = new wxMenu;
- 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") );
+ menuMapMode->Append( MapMode_Text, wxT("&TEXT map mode") );
+ menuMapMode->Append( MapMode_Lometric, wxT("&LOMETRIC map mode") );
+ menuMapMode->Append( MapMode_Twips, wxT("T&WIPS map mode") );
+ menuMapMode->Append( MapMode_Points, wxT("&POINTS map mode") );
+ menuMapMode->Append( MapMode_Metric, wxT("&METRIC map mode") );
wxMenu *menuUserScale = new wxMenu;
- 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->Append( UserScale_StretchHoriz, wxT("Stretch &horizontally\tCtrl-H") );
+ menuUserScale->Append( UserScale_ShrinkHoriz, wxT("Shrin&k horizontally\tCtrl-G") );
+ menuUserScale->Append( UserScale_StretchVertic, wxT("Stretch &vertically\tCtrl-V") );
+ menuUserScale->Append( UserScale_ShrinkVertic, wxT("&Shrink vertically\tCtrl-W") );
menuUserScale->AppendSeparator();
- menuUserScale->Append( UserScale_Restore, _T("&Restore to normal\tCtrl-0") );
+ menuUserScale->Append( UserScale_Restore, wxT("&Restore to normal\tCtrl-0") );
wxMenu *menuAxis = new wxMenu;
- menuAxis->AppendCheckItem( AxisMirror_Horiz, _T("Mirror horizontally\tCtrl-M") );
- menuAxis->AppendCheckItem( AxisMirror_Vertic, _T("Mirror vertically\tCtrl-N") );
+ menuAxis->AppendCheckItem( AxisMirror_Horiz, wxT("Mirror horizontally\tCtrl-M") );
+ menuAxis->AppendCheckItem( AxisMirror_Vertic, wxT("Mirror vertically\tCtrl-N") );
wxMenu *menuLogical = new wxMenu;
- 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->Append( LogicalOrigin_MoveDown, wxT("Move &down\tCtrl-D") );
+ menuLogical->Append( LogicalOrigin_MoveUp, wxT("Move &up\tCtrl-U") );
+ menuLogical->Append( LogicalOrigin_MoveLeft, wxT("Move &right\tCtrl-L") );
+ menuLogical->Append( LogicalOrigin_MoveRight, wxT("Move &left\tCtrl-R") );
menuLogical->AppendSeparator();
- menuLogical->Append( LogicalOrigin_Set, _T("Set to (&100, 100)\tShift-Ctrl-1") );
- menuLogical->Append( LogicalOrigin_Restore, _T("&Restore to normal\tShift-Ctrl-0") );
+ menuLogical->Append( LogicalOrigin_Set, wxT("Set to (&100, 100)\tShift-Ctrl-1") );
+ menuLogical->Append( LogicalOrigin_Restore, wxT("&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_TextForeground, wxT("Text &foreground...") );
+ menuColour->Append( Colour_TextBackground, wxT("Text &background...") );
+ menuColour->Append( Colour_Background, wxT("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") );
+ menuColour->AppendCheckItem( Colour_BackgroundMode, wxT("&Opaque/transparent\tCtrl-B") );
+ menuColour->AppendCheckItem( Colour_TextureBackgound, wxT("Draw textured back&ground\tCtrl-T") );
// now append the freshly created menu to the menu bar...
wxMenuBar *menuBar = new wxMenuBar;
- 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"));
+ menuBar->Append(menuFile, wxT("&File"));
+ menuBar->Append(menuMapMode, wxT("&Mode"));
+ menuBar->Append(menuUserScale, wxT("&Scale"));
+ menuBar->Append(menuAxis, wxT("&Axis"));
+ menuBar->Append(menuLogical, wxT("&Origin"));
+ menuBar->Append(menuColour, wxT("&Colours"));
// ... and attach this menu bar to the frame
SetMenuBar(menuBar);
#if wxUSE_STATUSBAR
CreateStatusBar(2);
- SetStatusText(_T("Welcome to wxWidgets!"));
+ SetStatusText(wxT("Welcome to wxWidgets!"));
#endif // wxUSE_STATUSBAR
m_mapMode = wxMM_TEXT;
wxT("Copyright (c) Robert Roebling 1999")
);
- wxMessageBox(msg, _T("About Drawing"), wxOK | wxICON_INFORMATION, this);
+ wxMessageBox(msg, wxT("About Drawing"), wxOK | wxICON_INFORMATION, this);
}
void MyFrame::OnClip(wxCommandEvent& event)
m_canvas->Clip(event.IsChecked());
}
+#if wxUSE_GRAPHICS_CONTEXT
+void MyFrame::OnGraphicContext(wxCommandEvent& event)
+{
+ m_canvas->UseGraphicContext(event.IsChecked());
+}
+#endif
+
void MyFrame::OnShow(wxCommandEvent& event)
{
- m_canvas->ToShow((ScreenToShow)(event.GetId() - MenuShow_First));
+ m_canvas->ToShow(event.GetId());
}
void MyFrame::OnOption(wxCommandEvent& event)
projects / wxWidgets.git / blobdiff