f43426c1b9
setup/configure changes for setting wxUSE_GRAPHICS_CONTEXT. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41619 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
357 lines
12 KiB
C++
Executable File
357 lines
12 KiB
C++
Executable File
/////////////////////////////////////////////////////////////////////////////
|
|
// 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_
|
|
|
|
|
|
#if wxUSE_GRAPHICS_CONTEXT
|
|
|
|
// ---------------------------------------------------------------------------
|
|
// macros
|
|
// ---------------------------------------------------------------------------
|
|
|
|
#include "wx/geometry.h"
|
|
#include "wx/dcclient.h"
|
|
#include "wx/dynarray.h"
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
|
|
class WXDLLEXPORT wxGraphicsPath
|
|
{
|
|
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 ) = 0;
|
|
|
|
// adds a straight line from the current point to (x,y)
|
|
virtual void AddLineToPoint( wxDouble x, wxDouble y ) = 0;
|
|
|
|
// 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 ) = 0;
|
|
|
|
// closes the current sub-path
|
|
virtual void CloseSubpath() = 0;
|
|
|
|
// gets the last point of the current path, (0,0) if not yet set
|
|
virtual void GetCurrentPoint( wxDouble& x, wxDouble&y) = 0;
|
|
|
|
// 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 ) = 0;
|
|
|
|
//
|
|
// 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 );
|
|
|
|
// draws 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 ) ;
|
|
|
|
// wrappers using wxPoint2DDoubles
|
|
|
|
wxPoint2DDouble GetCurrentPoint();
|
|
|
|
void MoveToPoint( const wxPoint2DDouble& p);
|
|
|
|
void AddLineToPoint( const wxPoint2DDouble& p);
|
|
|
|
void AddCurveToPoint( const wxPoint2DDouble& c1, const wxPoint2DDouble& c2, const wxPoint2DDouble& e);
|
|
|
|
void AddArc( const wxPoint2DDouble& c, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise);
|
|
|
|
DECLARE_NO_COPY_CLASS(wxGraphicsPath)
|
|
};
|
|
|
|
class WXDLLEXPORT wxGraphicsContext
|
|
{
|
|
public:
|
|
wxGraphicsContext() {}
|
|
virtual ~wxGraphicsContext() {}
|
|
|
|
static wxGraphicsContext* Create( const wxWindowDC& dc) ;
|
|
|
|
// creates a path instance that corresponds to the type of graphics context, ie GDIPlus, cairo, CoreGraphics ...
|
|
virtual wxGraphicsPath * CreatePath() = 0;
|
|
|
|
// 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
|
|
virtual void Clip( const wxRegion ®ion ) = 0;
|
|
|
|
//
|
|
// transformation
|
|
//
|
|
|
|
// 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;
|
|
|
|
//
|
|
// setting the paint
|
|
//
|
|
|
|
// sets the pan
|
|
virtual void SetPen( const wxPen &pen ) = 0;
|
|
|
|
// sets the brush for filling
|
|
virtual void SetBrush( 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 void SetLinearGradientBrush( 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 void SetRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
|
|
const wxColour &oColor, const wxColour &cColor) = 0;
|
|
|
|
// sets the font
|
|
virtual void SetFont( const wxFont &font ) = 0;
|
|
|
|
// sets the text color
|
|
virtual void SetTextColor( const wxColour &col ) = 0;
|
|
|
|
// 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, int fillStyle = wxWINDING_RULE ) = 0;
|
|
|
|
// draws a path by first filling and then stroking
|
|
virtual void DrawPath( const wxGraphicsPath *path, int fillStyle = wxWINDING_RULE );
|
|
|
|
//
|
|
// text
|
|
//
|
|
|
|
virtual void DrawText( const wxString &str, wxDouble x, wxDouble y ) = 0;
|
|
|
|
virtual void DrawText( const wxString &str, wxDouble x, wxDouble y, wxDouble angle );
|
|
|
|
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 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, int fillStyle = wxWINDING_RULE );
|
|
|
|
// draws a polygon
|
|
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
|
|
|
|
DECLARE_NO_COPY_CLASS(wxGraphicsContext)
|
|
};
|
|
|
|
class WXDLLEXPORT wxGCDC: public wxDC
|
|
{
|
|
DECLARE_DYNAMIC_CLASS(wxGCDC)
|
|
DECLARE_NO_COPY_CLASS(wxGCDC)
|
|
|
|
public:
|
|
wxGCDC(const wxWindowDC& dc);
|
|
wxGCDC();
|
|
virtual ~wxGCDC();
|
|
|
|
void Init();
|
|
|
|
|
|
// implement base class pure virtuals
|
|
// ----------------------------------
|
|
|
|
virtual void Clear();
|
|
|
|
virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return true; }
|
|
virtual void EndDoc(void) {}
|
|
|
|
virtual void StartPage(void) {}
|
|
virtual void EndPage(void) {}
|
|
|
|
virtual void SetFont(const wxFont& font);
|
|
virtual void SetPen(const wxPen& pen);
|
|
virtual void SetBrush(const wxBrush& brush);
|
|
virtual void SetBackground(const wxBrush& brush);
|
|
virtual void SetBackgroundMode(int mode);
|
|
virtual void SetPalette(const wxPalette& palette);
|
|
|
|
virtual void DestroyClippingRegion();
|
|
|
|
virtual wxCoord GetCharHeight() const;
|
|
virtual wxCoord GetCharWidth() const;
|
|
|
|
virtual bool CanDrawBitmap() const;
|
|
virtual bool CanGetTextExtent() const;
|
|
virtual int GetDepth() const;
|
|
virtual wxSize GetPPI() const;
|
|
|
|
virtual void SetMapMode(int mode);
|
|
virtual void SetUserScale(double x, double y);
|
|
|
|
virtual void SetLogicalScale(double x, double y);
|
|
virtual void SetLogicalOrigin(wxCoord x, wxCoord y);
|
|
virtual void SetDeviceOrigin(wxCoord x, wxCoord y);
|
|
virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp);
|
|
virtual void SetLogicalFunction(int function);
|
|
|
|
virtual void SetTextForeground(const wxColour& colour);
|
|
virtual void SetTextBackground(const wxColour& colour);
|
|
|
|
virtual void ComputeScaleAndOrigin();
|
|
|
|
wxGraphicsContext* GetGraphicContext() { return m_graphicContext; }
|
|
|
|
protected:
|
|
// the true implementations
|
|
virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
|
|
int style = wxFLOOD_SURFACE);
|
|
|
|
virtual void DoGradientFillLinear(const wxRect& rect,
|
|
const wxColour& initialColour,
|
|
const wxColour& destColour,
|
|
wxDirection nDirection = wxEAST);
|
|
|
|
virtual void DoGradientFillConcentric(const wxRect& rect,
|
|
const wxColour& initialColour,
|
|
const wxColour& destColour,
|
|
const wxPoint& circleCenter);
|
|
|
|
virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const;
|
|
|
|
virtual void DoDrawPoint(wxCoord x, wxCoord y);
|
|
|
|
#if wxUSE_SPLINES
|
|
virtual void DoDrawSpline(wxList *points);
|
|
#endif
|
|
|
|
virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2);
|
|
|
|
virtual void DoDrawArc(wxCoord x1, wxCoord y1,
|
|
wxCoord x2, wxCoord y2,
|
|
wxCoord xc, wxCoord yc);
|
|
|
|
virtual void DoDrawCheckMark(wxCoord x, wxCoord y,
|
|
wxCoord width, wxCoord height);
|
|
|
|
virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
|
|
double sa, double ea);
|
|
|
|
virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
|
|
virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y,
|
|
wxCoord width, wxCoord height,
|
|
double radius);
|
|
virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
|
|
|
|
virtual void DoCrossHair(wxCoord x, wxCoord y);
|
|
|
|
virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y);
|
|
virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
|
|
bool useMask = false);
|
|
|
|
virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y);
|
|
virtual void DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y,
|
|
double angle);
|
|
|
|
virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
|
|
wxDC *source, wxCoord xsrc, wxCoord ysrc,
|
|
int rop = wxCOPY, bool useMask = false, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1);
|
|
|
|
virtual void DoGetSize(int *,int *) const;
|
|
virtual void DoGetSizeMM(int* width, int* height) const;
|
|
|
|
virtual void DoDrawLines(int n, wxPoint points[],
|
|
wxCoord xoffset, wxCoord yoffset);
|
|
virtual void DoDrawPolygon(int n, wxPoint points[],
|
|
wxCoord xoffset, wxCoord yoffset,
|
|
int fillStyle = wxODDEVEN_RULE);
|
|
virtual void DoDrawPolyPolygon(int n, int count[], wxPoint points[],
|
|
wxCoord xoffset, wxCoord yoffset,
|
|
int fillStyle);
|
|
|
|
virtual void DoSetClippingRegionAsRegion(const wxRegion& region);
|
|
virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
|
|
wxCoord width, wxCoord height);
|
|
|
|
virtual void DoGetTextExtent(const wxString& string,
|
|
wxCoord *x, wxCoord *y,
|
|
wxCoord *descent = NULL,
|
|
wxCoord *externalLeading = NULL,
|
|
wxFont *theFont = NULL) const;
|
|
|
|
virtual bool DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const;
|
|
|
|
protected:
|
|
// scaling variables
|
|
double m_mm_to_pix_x, m_mm_to_pix_y;
|
|
|
|
wxGraphicsContext* m_graphicContext;
|
|
};
|
|
#endif
|
|
|
|
#endif
|
|
// _WX_GRID_H_BASE_
|