03647350fc
This commit is huge but there are no non-white-space changes in it. Some files containing third-party sources (src/msw/wince/time.cpp, src/x11/pango*.cpp) were left unchanged. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@61724 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
672 lines
23 KiB
C++
672 lines
23 KiB
C++
/////////////////////////////////////////////////////////////////////////////
|
|
// Name: wx/graphics.h
|
|
// Purpose: graphics context header
|
|
// Author: Stefan Csomor
|
|
// Modified by:
|
|
// Created:
|
|
// Copyright: (c) Stefan Csomor
|
|
// RCS-ID: $Id$
|
|
// Licence: wxWindows licence
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef _WX_GRAPHICS_H_
|
|
#define _WX_GRAPHICS_H_
|
|
|
|
#include "wx/defs.h"
|
|
|
|
#if wxUSE_GRAPHICS_CONTEXT
|
|
|
|
#include "wx/geometry.h"
|
|
#include "wx/dynarray.h"
|
|
#include "wx/dc.h"
|
|
|
|
enum wxAntialiasMode
|
|
{
|
|
wxANTIALIAS_NONE, // should be 0
|
|
wxANTIALIAS_DEFAULT,
|
|
};
|
|
|
|
enum wxCompositionMode
|
|
{
|
|
// R = Result, S = Source, D = Destination, premultiplied with alpha
|
|
// Ra, Sa, Da their alpha components
|
|
|
|
// classic Porter-Duff compositions
|
|
// http://keithp.com/~keithp/porterduff/p253-porter.pdf
|
|
|
|
wxCOMPOSITION_CLEAR, /* R = 0 */
|
|
wxCOMPOSITION_SOURCE, /* R = S */
|
|
wxCOMPOSITION_OVER, /* R = S + D*(1 - Sa) */
|
|
wxCOMPOSITION_IN, /* R = S*Da */
|
|
wxCOMPOSITION_OUT, /* R = S*(1 - Da) */
|
|
wxCOMPOSITION_ATOP, /* R = S*Da + D*(1 - Sa) */
|
|
|
|
wxCOMPOSITION_DEST, /* R = D, essentially a noop */
|
|
wxCOMPOSITION_DEST_OVER, /* R = S*(1 - Da) + D */
|
|
wxCOMPOSITION_DEST_IN, /* R = D*Sa */
|
|
wxCOMPOSITION_DEST_OUT, /* R = D*(1 - Sa) */
|
|
wxCOMPOSITION_DEST_ATOP, /* R = S*(1 - Da) + D*Sa */
|
|
wxCOMPOSITION_XOR, /* R = S*(1 - Da) + D*(1 - Sa) */
|
|
|
|
// mathematical compositions
|
|
wxCOMPOSITION_ADD, /* R = S + D */
|
|
};
|
|
|
|
class WXDLLIMPEXP_FWD_CORE wxWindowDC;
|
|
class WXDLLIMPEXP_FWD_CORE wxMemoryDC;
|
|
#if wxUSE_PRINTING_ARCHITECTURE
|
|
class WXDLLIMPEXP_FWD_CORE wxPrinterDC;
|
|
#endif
|
|
class WXDLLIMPEXP_FWD_CORE wxGraphicsContext;
|
|
class WXDLLIMPEXP_FWD_CORE wxGraphicsPath;
|
|
class WXDLLIMPEXP_FWD_CORE wxGraphicsMatrix;
|
|
class WXDLLIMPEXP_FWD_CORE wxGraphicsFigure;
|
|
class WXDLLIMPEXP_FWD_CORE wxGraphicsRenderer;
|
|
class WXDLLIMPEXP_FWD_CORE wxGraphicsPen;
|
|
class WXDLLIMPEXP_FWD_CORE wxGraphicsBrush;
|
|
class WXDLLIMPEXP_FWD_CORE wxGraphicsFont;
|
|
class WXDLLIMPEXP_FWD_CORE wxGraphicsBitmap;
|
|
|
|
/*
|
|
* notes about the graphics context apis
|
|
*
|
|
* angles : are measured in radians, 0.0 being in direction of positiv x axis, PI/2 being
|
|
* in direction of positive y axis.
|
|
*/
|
|
|
|
// Base class of all objects used for drawing in the new graphics API, the always point back to their
|
|
// originating rendering engine, there is no dynamic unloading of a renderer currently allowed,
|
|
// these references are not counted
|
|
|
|
//
|
|
// The data used by objects like graphics pens etc is ref counted, in order to avoid unnecessary expensive
|
|
// duplication. Any operation on a shared instance that results in a modified state, uncouples this
|
|
// instance from the other instances that were shared - using copy on write semantics
|
|
//
|
|
|
|
class WXDLLIMPEXP_FWD_CORE wxGraphicsObjectRefData;
|
|
class WXDLLIMPEXP_FWD_CORE wxGraphicsMatrixData;
|
|
class WXDLLIMPEXP_FWD_CORE wxGraphicsPathData;
|
|
|
|
class WXDLLIMPEXP_CORE wxGraphicsObject : public wxObject
|
|
{
|
|
public:
|
|
wxGraphicsObject();
|
|
wxGraphicsObject( wxGraphicsRenderer* renderer );
|
|
virtual ~wxGraphicsObject();
|
|
|
|
bool IsNull() const;
|
|
|
|
// returns the renderer that was used to create this instance, or NULL if it has not been initialized yet
|
|
wxGraphicsRenderer* GetRenderer() const;
|
|
wxGraphicsObjectRefData* GetGraphicsData() const;
|
|
protected:
|
|
virtual wxObjectRefData* CreateRefData() const;
|
|
virtual wxObjectRefData* CloneRefData(const wxObjectRefData* data) const;
|
|
|
|
DECLARE_DYNAMIC_CLASS(wxGraphicsObject)
|
|
};
|
|
|
|
class WXDLLIMPEXP_CORE wxGraphicsPen : public wxGraphicsObject
|
|
{
|
|
public:
|
|
wxGraphicsPen() {}
|
|
virtual ~wxGraphicsPen() {}
|
|
private:
|
|
DECLARE_DYNAMIC_CLASS(wxGraphicsPen)
|
|
};
|
|
|
|
extern WXDLLIMPEXP_DATA_CORE(wxGraphicsPen) wxNullGraphicsPen;
|
|
|
|
class WXDLLIMPEXP_CORE wxGraphicsBrush : public wxGraphicsObject
|
|
{
|
|
public:
|
|
wxGraphicsBrush() {}
|
|
virtual ~wxGraphicsBrush() {}
|
|
private:
|
|
DECLARE_DYNAMIC_CLASS(wxGraphicsBrush)
|
|
};
|
|
|
|
extern WXDLLIMPEXP_DATA_CORE(wxGraphicsBrush) wxNullGraphicsBrush;
|
|
|
|
class WXDLLIMPEXP_CORE wxGraphicsFont : public wxGraphicsObject
|
|
{
|
|
public:
|
|
wxGraphicsFont() {}
|
|
virtual ~wxGraphicsFont() {}
|
|
private:
|
|
DECLARE_DYNAMIC_CLASS(wxGraphicsFont)
|
|
};
|
|
|
|
extern WXDLLIMPEXP_DATA_CORE(wxGraphicsFont) wxNullGraphicsFont;
|
|
|
|
class WXDLLIMPEXP_CORE wxGraphicsBitmap : public wxGraphicsObject
|
|
{
|
|
public:
|
|
wxGraphicsBitmap() {}
|
|
virtual ~wxGraphicsBitmap() {}
|
|
private:
|
|
DECLARE_DYNAMIC_CLASS(wxGraphicsBitmap)
|
|
};
|
|
|
|
extern WXDLLIMPEXP_DATA_CORE(wxGraphicsBitmap) wxNullGraphicsBitmap;
|
|
|
|
class WXDLLIMPEXP_CORE wxGraphicsMatrix : public wxGraphicsObject
|
|
{
|
|
public:
|
|
wxGraphicsMatrix() {}
|
|
|
|
virtual ~wxGraphicsMatrix() {}
|
|
|
|
// concatenates the matrix
|
|
virtual void Concat( const wxGraphicsMatrix *t );
|
|
void Concat( const wxGraphicsMatrix &t ) { Concat( &t ); }
|
|
|
|
// sets the matrix to the respective values
|
|
virtual void Set(wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
|
|
wxDouble tx=0.0, wxDouble ty=0.0);
|
|
|
|
// gets the component valuess of the matrix
|
|
virtual void Get(wxDouble* a=NULL, wxDouble* b=NULL, wxDouble* c=NULL,
|
|
wxDouble* d=NULL, wxDouble* tx=NULL, wxDouble* ty=NULL) const;
|
|
|
|
// makes this the inverse matrix
|
|
virtual void Invert();
|
|
|
|
// returns true if the elements of the transformation matrix are equal ?
|
|
virtual bool IsEqual( const wxGraphicsMatrix* t) const;
|
|
bool IsEqual( const wxGraphicsMatrix& t) const { return IsEqual( &t ); }
|
|
|
|
// return true if this is the identity matrix
|
|
virtual bool IsIdentity() const;
|
|
|
|
//
|
|
// transformation
|
|
//
|
|
|
|
// add the translation to this matrix
|
|
virtual void Translate( wxDouble dx , wxDouble dy );
|
|
|
|
// add the scale to this matrix
|
|
virtual void Scale( wxDouble xScale , wxDouble yScale );
|
|
|
|
// add the rotation to this matrix (radians)
|
|
virtual void Rotate( wxDouble angle );
|
|
|
|
//
|
|
// apply the transforms
|
|
//
|
|
|
|
// applies that matrix to the point
|
|
virtual void TransformPoint( wxDouble *x, wxDouble *y ) const;
|
|
|
|
// applies the matrix except for translations
|
|
virtual void TransformDistance( wxDouble *dx, wxDouble *dy ) const;
|
|
|
|
// returns the native representation
|
|
virtual void * GetNativeMatrix() const;
|
|
|
|
const wxGraphicsMatrixData* GetMatrixData() const
|
|
{ return (const wxGraphicsMatrixData*) GetRefData(); }
|
|
wxGraphicsMatrixData* GetMatrixData()
|
|
{ return (wxGraphicsMatrixData*) GetRefData(); }
|
|
|
|
private:
|
|
DECLARE_DYNAMIC_CLASS(wxGraphicsMatrix)
|
|
};
|
|
|
|
extern WXDLLIMPEXP_DATA_CORE(wxGraphicsMatrix) wxNullGraphicsMatrix;
|
|
|
|
class WXDLLIMPEXP_CORE wxGraphicsPath : public wxGraphicsObject
|
|
{
|
|
public:
|
|
wxGraphicsPath() {}
|
|
virtual ~wxGraphicsPath() {}
|
|
|
|
//
|
|
// These are the path primitives from which everything else can be constructed
|
|
//
|
|
|
|
// begins a new subpath at (x,y)
|
|
virtual void MoveToPoint( wxDouble x, wxDouble y );
|
|
void MoveToPoint( const wxPoint2DDouble& p);
|
|
|
|
// adds a straight line from the current point to (x,y)
|
|
virtual void AddLineToPoint( wxDouble x, wxDouble y );
|
|
void AddLineToPoint( const wxPoint2DDouble& p);
|
|
|
|
// adds a cubic Bezier curve from the current point, using two control points and an end point
|
|
virtual void AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y );
|
|
void AddCurveToPoint( const wxPoint2DDouble& c1, const wxPoint2DDouble& c2, const wxPoint2DDouble& e);
|
|
|
|
// adds another path
|
|
virtual void AddPath( const wxGraphicsPath& path );
|
|
|
|
// closes the current sub-path
|
|
virtual void CloseSubpath();
|
|
|
|
// gets the last point of the current path, (0,0) if not yet set
|
|
virtual void GetCurrentPoint( wxDouble* x, wxDouble* y) const;
|
|
wxPoint2DDouble GetCurrentPoint() const;
|
|
|
|
// adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
|
|
virtual void AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise );
|
|
void AddArc( const wxPoint2DDouble& c, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise);
|
|
|
|
//
|
|
// These are convenience functions which - if not available natively will be assembled
|
|
// using the primitives from above
|
|
//
|
|
|
|
// adds a quadratic Bezier curve from the current point, using a control point and an end point
|
|
virtual void AddQuadCurveToPoint( wxDouble cx, wxDouble cy, wxDouble x, wxDouble y );
|
|
|
|
// appends a rectangle as a new closed subpath
|
|
virtual void AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
|
|
|
|
// appends an ellipsis as a new closed subpath fitting the passed rectangle
|
|
virtual void AddCircle( wxDouble x, wxDouble y, wxDouble r );
|
|
|
|
// appends a an arc to two tangents connecting (current) to (x1,y1) and (x1,y1) to (x2,y2), also a straight line from (current) to (x1,y1)
|
|
virtual void AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r );
|
|
|
|
// appends an ellipse
|
|
virtual void AddEllipse( wxDouble x, wxDouble y, wxDouble w, wxDouble h);
|
|
|
|
// appends a rounded rectangle
|
|
virtual void AddRoundedRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h, wxDouble radius);
|
|
|
|
// returns the native path
|
|
virtual void * GetNativePath() const;
|
|
|
|
// give the native path returned by GetNativePath() back (there might be some deallocations necessary)
|
|
virtual void UnGetNativePath(void *p)const;
|
|
|
|
// transforms each point of this path by the matrix
|
|
virtual void Transform( const wxGraphicsMatrix& matrix );
|
|
|
|
// gets the bounding box enclosing all points (possibly including control points)
|
|
virtual void GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h)const;
|
|
wxRect2DDouble GetBox()const;
|
|
|
|
virtual bool Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle = wxODDEVEN_RULE)const;
|
|
bool Contains( const wxPoint2DDouble& c, wxPolygonFillMode fillStyle = wxODDEVEN_RULE)const;
|
|
|
|
const wxGraphicsPathData* GetPathData() const
|
|
{ return (const wxGraphicsPathData*) GetRefData(); }
|
|
wxGraphicsPathData* GetPathData()
|
|
{ return (wxGraphicsPathData*) GetRefData(); }
|
|
|
|
private:
|
|
DECLARE_DYNAMIC_CLASS(wxGraphicsPath)
|
|
};
|
|
|
|
extern WXDLLIMPEXP_DATA_CORE(wxGraphicsPath) wxNullGraphicsPath;
|
|
|
|
|
|
class WXDLLIMPEXP_CORE wxGraphicsContext : public wxGraphicsObject
|
|
{
|
|
public:
|
|
wxGraphicsContext(wxGraphicsRenderer* renderer);
|
|
|
|
virtual ~wxGraphicsContext();
|
|
|
|
static wxGraphicsContext* Create( const wxWindowDC& dc);
|
|
static wxGraphicsContext * Create( const wxMemoryDC& dc);
|
|
#if wxUSE_PRINTING_ARCHITECTURE
|
|
static wxGraphicsContext * Create( const wxPrinterDC& dc);
|
|
#endif
|
|
|
|
static wxGraphicsContext* CreateFromNative( void * context );
|
|
|
|
static wxGraphicsContext* CreateFromNativeWindow( void * window );
|
|
|
|
static wxGraphicsContext* Create( wxWindow* window );
|
|
|
|
// create a context that can be used for measuring texts only, no drawing allowed
|
|
static wxGraphicsContext * Create();
|
|
|
|
// begin a new document (relevant only for printing / pdf etc) if there is a progress dialog, message will be shown
|
|
virtual bool StartDoc( const wxString& message );
|
|
|
|
// done with that document (relevant only for printing / pdf etc)
|
|
virtual void EndDoc();
|
|
|
|
// opens a new page (relevant only for printing / pdf etc) with the given size in points
|
|
// (if both are null the default page size will be used)
|
|
virtual void StartPage( wxDouble width = 0, wxDouble height = 0 );
|
|
|
|
// ends the current page (relevant only for printing / pdf etc)
|
|
virtual void EndPage();
|
|
|
|
// make sure that the current content of this context is immediately visible
|
|
virtual void Flush();
|
|
|
|
wxGraphicsPath CreatePath() const;
|
|
|
|
virtual wxGraphicsPen CreatePen(const wxPen& pen) const;
|
|
|
|
virtual wxGraphicsBrush CreateBrush(const wxBrush& brush ) const;
|
|
|
|
// sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
|
|
virtual wxGraphicsBrush CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
|
|
const wxColour&c1, const wxColour&c2) const;
|
|
|
|
// sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
|
|
// with radius r and color cColor
|
|
virtual wxGraphicsBrush CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
|
|
const wxColour &oColor, const wxColour &cColor) const;
|
|
|
|
// sets the font
|
|
virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) const;
|
|
|
|
// create a native bitmap representation
|
|
virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap ) const;
|
|
|
|
// create a native bitmap representation
|
|
virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h ) const;
|
|
|
|
// create a 'native' matrix corresponding to these values
|
|
virtual wxGraphicsMatrix CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
|
|
wxDouble tx=0.0, wxDouble ty=0.0) const;
|
|
|
|
// push the current state of the context, ie the transformation matrix on a stack
|
|
virtual void PushState() = 0;
|
|
|
|
// pops a stored state from the stack
|
|
virtual void PopState() = 0;
|
|
|
|
// clips drawings to the region intersected with the current clipping region
|
|
virtual void Clip( const wxRegion ®ion ) = 0;
|
|
|
|
// clips drawings to the rect intersected with the current clipping region
|
|
virtual void Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h ) = 0;
|
|
|
|
// resets the clipping to original extent
|
|
virtual void ResetClip() = 0;
|
|
|
|
// returns the native context
|
|
virtual void * GetNativeContext() = 0;
|
|
|
|
// returns the current shape antialiasing mode
|
|
virtual wxAntialiasMode GetAntialiasMode() const { return m_antialias; }
|
|
|
|
// sets the antialiasing mode, returns true if it supported
|
|
virtual bool SetAntialiasMode(wxAntialiasMode antialias) = 0;
|
|
|
|
// returns the current compositing operator
|
|
virtual wxCompositionMode GetCompositionMode() const { return m_composition; }
|
|
|
|
// sets the compositing operator, returns true if it supported
|
|
virtual bool SetCompositionMode(wxCompositionMode op) = 0;
|
|
|
|
// returns the size of the graphics context in device coordinates
|
|
virtual void GetSize( wxDouble* width, wxDouble* height);
|
|
|
|
// returns the resolution of the graphics context in device points per inch
|
|
virtual void GetDPI( wxDouble* dpiX, wxDouble* dpiY);
|
|
|
|
#if 0
|
|
// sets the current alpha on this context
|
|
virtual void SetAlpha( wxDouble alpha );
|
|
|
|
// returns the alpha on this context
|
|
virtual wxDouble GetAlpha() const;
|
|
#endif
|
|
|
|
// all rendering is done into a fully transparent temporary context
|
|
virtual void BeginLayer(wxDouble opacity) = 0;
|
|
|
|
// composites back the drawings into the context with the opacity given at
|
|
// the BeginLayer call
|
|
virtual void EndLayer() = 0;
|
|
|
|
//
|
|
// transformation : changes the current transformation matrix CTM of the context
|
|
//
|
|
|
|
// translate
|
|
virtual void Translate( wxDouble dx , wxDouble dy ) = 0;
|
|
|
|
// scale
|
|
virtual void Scale( wxDouble xScale , wxDouble yScale ) = 0;
|
|
|
|
// rotate (radians)
|
|
virtual void Rotate( wxDouble angle ) = 0;
|
|
|
|
// concatenates this transform with the current transform of this context
|
|
virtual void ConcatTransform( const wxGraphicsMatrix& matrix ) = 0;
|
|
|
|
// sets the transform of this context
|
|
virtual void SetTransform( const wxGraphicsMatrix& matrix ) = 0;
|
|
|
|
// gets the matrix of this context
|
|
virtual wxGraphicsMatrix GetTransform() const = 0;
|
|
//
|
|
// setting the paint
|
|
//
|
|
|
|
// sets the pen
|
|
virtual void SetPen( const wxGraphicsPen& pen );
|
|
|
|
void SetPen( const wxPen& pen );
|
|
|
|
// sets the brush for filling
|
|
virtual void SetBrush( const wxGraphicsBrush& brush );
|
|
|
|
void SetBrush( const wxBrush& brush );
|
|
|
|
// sets the font
|
|
virtual void SetFont( const wxGraphicsFont& font );
|
|
|
|
void SetFont( const wxFont& font, const wxColour& colour );
|
|
|
|
|
|
// strokes along a path with the current pen
|
|
virtual void StrokePath( const wxGraphicsPath& path ) = 0;
|
|
|
|
// fills a path with the current brush
|
|
virtual void FillPath( const wxGraphicsPath& path, wxPolygonFillMode fillStyle = wxODDEVEN_RULE ) = 0;
|
|
|
|
// draws a path by first filling and then stroking
|
|
virtual void DrawPath( const wxGraphicsPath& path, wxPolygonFillMode fillStyle = wxODDEVEN_RULE );
|
|
|
|
//
|
|
// text
|
|
//
|
|
|
|
void DrawText( const wxString &str, wxDouble x, wxDouble y )
|
|
{ DoDrawText(str, x, y); }
|
|
|
|
void DrawText( const wxString &str, wxDouble x, wxDouble y, wxDouble angle )
|
|
{ DoDrawRotatedText(str, x, y, angle); }
|
|
|
|
void DrawText( const wxString &str, wxDouble x, wxDouble y,
|
|
const wxGraphicsBrush& backgroundBrush )
|
|
{ DoDrawFilledText(str, x, y, backgroundBrush); }
|
|
|
|
void DrawText( const wxString &str, wxDouble x, wxDouble y,
|
|
wxDouble angle, const wxGraphicsBrush& backgroundBrush )
|
|
{ DoDrawRotatedFilledText(str, x, y, angle, backgroundBrush); }
|
|
|
|
|
|
virtual void GetTextExtent( const wxString &text, wxDouble *width, wxDouble *height,
|
|
wxDouble *descent, wxDouble *externalLeading ) const = 0;
|
|
|
|
virtual void GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const = 0;
|
|
|
|
//
|
|
// image support
|
|
//
|
|
|
|
virtual void DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h ) = 0;
|
|
|
|
virtual void DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h ) = 0;
|
|
|
|
virtual void DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h ) = 0;
|
|
|
|
//
|
|
// convenience methods
|
|
//
|
|
|
|
// strokes a single line
|
|
virtual void StrokeLine( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2);
|
|
|
|
// stroke lines connecting each of the points
|
|
virtual void StrokeLines( size_t n, const wxPoint2DDouble *points);
|
|
|
|
// stroke disconnected lines from begin to end points
|
|
virtual void StrokeLines( size_t n, const wxPoint2DDouble *beginPoints, const wxPoint2DDouble *endPoints);
|
|
|
|
// draws a polygon
|
|
virtual void DrawLines( size_t n, const wxPoint2DDouble *points, wxPolygonFillMode fillStyle = wxODDEVEN_RULE );
|
|
|
|
// draws a rectangle
|
|
virtual void DrawRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h);
|
|
|
|
// draws an ellipse
|
|
virtual void DrawEllipse( wxDouble x, wxDouble y, wxDouble w, wxDouble h);
|
|
|
|
// draws a rounded rectangle
|
|
virtual void DrawRoundedRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h, wxDouble radius);
|
|
|
|
// wrappers using wxPoint2DDouble TODO
|
|
|
|
// helper to determine if a 0.5 offset should be applied for the drawing operation
|
|
virtual bool ShouldOffset() const { return false; }
|
|
|
|
protected:
|
|
|
|
wxGraphicsPen m_pen;
|
|
wxGraphicsBrush m_brush;
|
|
wxGraphicsFont m_font;
|
|
wxAntialiasMode m_antialias;
|
|
wxCompositionMode m_composition;
|
|
|
|
protected:
|
|
// implementations of overloaded public functions: we use different names
|
|
// for them to avoid the virtual function hiding problems in the derived
|
|
// classes
|
|
virtual void DoDrawText(const wxString& str, wxDouble x, wxDouble y) = 0;
|
|
virtual void DoDrawRotatedText(const wxString& str, wxDouble x, wxDouble y,
|
|
wxDouble angle);
|
|
virtual void DoDrawFilledText(const wxString& str, wxDouble x, wxDouble y,
|
|
const wxGraphicsBrush& backgroundBrush);
|
|
virtual void DoDrawRotatedFilledText(const wxString& str,
|
|
wxDouble x, wxDouble y,
|
|
wxDouble angle,
|
|
const wxGraphicsBrush& backgroundBrush);
|
|
|
|
wxDECLARE_NO_COPY_CLASS(wxGraphicsContext);
|
|
DECLARE_ABSTRACT_CLASS(wxGraphicsContext)
|
|
};
|
|
|
|
#if 0
|
|
|
|
//
|
|
// A graphics figure allows to cache path, pen etc creations, also will be a basis for layering/grouping elements
|
|
//
|
|
|
|
class WXDLLIMPEXP_CORE wxGraphicsFigure : public wxGraphicsObject
|
|
{
|
|
public:
|
|
wxGraphicsFigure(wxGraphicsRenderer* renderer);
|
|
|
|
virtual ~wxGraphicsFigure();
|
|
|
|
void SetPath( wxGraphicsMatrix* matrix );
|
|
|
|
void SetMatrix( wxGraphicsPath* path);
|
|
|
|
// draws this object on the context
|
|
virtual void Draw( wxGraphicsContext* cg );
|
|
|
|
// returns the path of this object
|
|
wxGraphicsPath* GetPath() { return m_path; }
|
|
|
|
// returns the transformation matrix of this object, may be null if there is no transformation necessary
|
|
wxGraphicsMatrix* GetMatrix() { return m_matrix; }
|
|
|
|
private:
|
|
wxGraphicsMatrix* m_matrix;
|
|
wxGraphicsPath* m_path;
|
|
|
|
DECLARE_DYNAMIC_CLASS(wxGraphicsFigure)
|
|
};
|
|
|
|
#endif
|
|
|
|
//
|
|
// The graphics renderer is the instance corresponding to the rendering engine used, eg there is ONE core graphics renderer
|
|
// instance on OSX. This instance is pointed back to by all objects created by it. Therefore you can create eg additional
|
|
// paths at any point from a given matrix etc.
|
|
//
|
|
|
|
class WXDLLIMPEXP_CORE wxGraphicsRenderer : public wxObject
|
|
{
|
|
public:
|
|
wxGraphicsRenderer() {}
|
|
|
|
virtual ~wxGraphicsRenderer() {}
|
|
|
|
static wxGraphicsRenderer* GetDefaultRenderer();
|
|
|
|
// Context
|
|
|
|
virtual wxGraphicsContext * CreateContext( const wxWindowDC& dc) = 0;
|
|
virtual wxGraphicsContext * CreateContext( const wxMemoryDC& dc) = 0;
|
|
#if wxUSE_PRINTING_ARCHITECTURE
|
|
virtual wxGraphicsContext * CreateContext( const wxPrinterDC& dc) = 0;
|
|
#endif
|
|
|
|
virtual wxGraphicsContext * CreateContextFromNativeContext( void * context ) = 0;
|
|
|
|
virtual wxGraphicsContext * CreateContextFromNativeWindow( void * window ) = 0;
|
|
|
|
virtual wxGraphicsContext * CreateContext( wxWindow* window ) = 0;
|
|
|
|
// create a context that can be used for measuring texts only, no drawing allowed
|
|
virtual wxGraphicsContext * CreateMeasuringContext() = 0;
|
|
|
|
// Path
|
|
|
|
virtual wxGraphicsPath CreatePath() = 0;
|
|
|
|
// Matrix
|
|
|
|
virtual wxGraphicsMatrix CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
|
|
wxDouble tx=0.0, wxDouble ty=0.0) = 0;
|
|
|
|
// Paints
|
|
|
|
virtual wxGraphicsPen CreatePen(const wxPen& pen) = 0;
|
|
|
|
virtual wxGraphicsBrush CreateBrush(const wxBrush& brush ) = 0;
|
|
|
|
// sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
|
|
virtual wxGraphicsBrush CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
|
|
const wxColour&c1, const wxColour&c2) = 0;
|
|
|
|
// sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
|
|
// with radius r and color cColor
|
|
virtual wxGraphicsBrush CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
|
|
const wxColour &oColor, const wxColour &cColor) = 0;
|
|
|
|
// sets the font
|
|
virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) = 0;
|
|
|
|
// create a native bitmap representation
|
|
virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap ) = 0;
|
|
|
|
// create a subimage from a native image representation
|
|
virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h ) = 0;
|
|
|
|
private:
|
|
wxDECLARE_NO_COPY_CLASS(wxGraphicsRenderer);
|
|
DECLARE_ABSTRACT_CLASS(wxGraphicsRenderer)
|
|
};
|
|
|
|
#endif
|
|
|
|
#endif // _WX_GRAPHICS_H_
|