d3c7fc996a
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41020 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
274 lines
9.3 KiB
C++
274 lines
9.3 KiB
C++
/////////////////////////////////////////////////////////////////////////////
|
|
// Name: dc.h
|
|
// Purpose: wxDC class
|
|
// Author: Vaclav Slavik
|
|
// Created: 2001/03/09
|
|
// RCS-ID: $Id$
|
|
// Copyright: (c) 2001-2002 SciTech Software, Inc. (www.scitechsoft.com)
|
|
// Licence: wxWindows licence
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef _WX_DC_H_
|
|
#define _WX_DC_H_
|
|
|
|
#include "wx/defs.h"
|
|
#include "wx/region.h"
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// classes
|
|
//-----------------------------------------------------------------------------
|
|
|
|
class WXDLLEXPORT wxDC;
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// constants
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#ifndef MM_TEXT
|
|
#define MM_TEXT 0
|
|
#define MM_ISOTROPIC 1
|
|
#define MM_ANISOTROPIC 2
|
|
#define MM_LOMETRIC 3
|
|
#define MM_HIMETRIC 4
|
|
#define MM_TWIPS 5
|
|
#define MM_POINTS 6
|
|
#define MM_METRIC 7
|
|
#endif
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// wxDC
|
|
//-----------------------------------------------------------------------------
|
|
|
|
|
|
// MGL fwd declarations:
|
|
class MGLDevCtx;
|
|
class MGLRegion;
|
|
struct font_t;
|
|
|
|
class WXDLLEXPORT wxDC : public wxDCBase
|
|
{
|
|
DECLARE_DYNAMIC_CLASS(wxDC)
|
|
|
|
public:
|
|
wxDC();
|
|
virtual ~wxDC();
|
|
|
|
// implement base class pure virtuals
|
|
// ----------------------------------
|
|
|
|
virtual void Clear();
|
|
|
|
virtual bool StartDoc(const wxString& message);
|
|
virtual void EndDoc();
|
|
|
|
virtual void StartPage();
|
|
virtual void EndPage();
|
|
|
|
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 void DoGetTextExtent(const wxString& string,
|
|
wxCoord *x, wxCoord *y,
|
|
wxCoord *descent = NULL,
|
|
wxCoord *externalLeading = NULL,
|
|
wxFont *theFont = NULL) 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);
|
|
|
|
// implementation from now on
|
|
// --------------------------
|
|
|
|
virtual void ComputeScaleAndOrigin();
|
|
|
|
wxCoord XDEV2LOG(wxCoord x) const
|
|
{
|
|
wxCoord new_x = x - m_deviceOriginX;
|
|
if (new_x > 0)
|
|
return (wxCoord)((double)(new_x) / m_scaleX + 0.5) * m_signX + m_logicalOriginX;
|
|
else
|
|
return (wxCoord)((double)(new_x) / m_scaleX - 0.5) * m_signX + m_logicalOriginX;
|
|
}
|
|
wxCoord XDEV2LOGREL(wxCoord x) const
|
|
{
|
|
if (x > 0)
|
|
return (wxCoord)((double)(x) / m_scaleX + 0.5);
|
|
else
|
|
return (wxCoord)((double)(x) / m_scaleX - 0.5);
|
|
}
|
|
wxCoord YDEV2LOG(wxCoord y) const
|
|
{
|
|
wxCoord new_y = y - m_deviceOriginY;
|
|
if (new_y > 0)
|
|
return (wxCoord)((double)(new_y) / m_scaleY + 0.5) * m_signY + m_logicalOriginY;
|
|
else
|
|
return (wxCoord)((double)(new_y) / m_scaleY - 0.5) * m_signY + m_logicalOriginY;
|
|
}
|
|
wxCoord YDEV2LOGREL(wxCoord y) const
|
|
{
|
|
if (y > 0)
|
|
return (wxCoord)((double)(y) / m_scaleY + 0.5);
|
|
else
|
|
return (wxCoord)((double)(y) / m_scaleY - 0.5);
|
|
}
|
|
wxCoord XLOG2DEV(wxCoord x) const
|
|
{
|
|
wxCoord new_x = x - m_logicalOriginX;
|
|
if (new_x > 0)
|
|
return (wxCoord)((double)(new_x) * m_scaleX + 0.5) * m_signX + m_deviceOriginX;
|
|
else
|
|
return (wxCoord)((double)(new_x) * m_scaleX - 0.5) * m_signX + m_deviceOriginX;
|
|
}
|
|
wxCoord XLOG2DEVREL(wxCoord x) const
|
|
{
|
|
if (x > 0)
|
|
return (wxCoord)((double)(x) * m_scaleX + 0.5);
|
|
else
|
|
return (wxCoord)((double)(x) * m_scaleX - 0.5);
|
|
}
|
|
wxCoord YLOG2DEV(wxCoord y) const
|
|
{
|
|
wxCoord new_y = y - m_logicalOriginY;
|
|
if (new_y > 0)
|
|
return (wxCoord)((double)(new_y) * m_scaleY + 0.5) * m_signY + m_deviceOriginY;
|
|
else
|
|
return (wxCoord)((double)(new_y) * m_scaleY - 0.5) * m_signY + m_deviceOriginY;
|
|
}
|
|
wxCoord YLOG2DEVREL(wxCoord y) const
|
|
{
|
|
if (y > 0)
|
|
return (wxCoord)((double)(y) * m_scaleY + 0.5);
|
|
else
|
|
return (wxCoord)((double)(y) * m_scaleY - 0.5);
|
|
}
|
|
|
|
MGLDevCtx *GetMGLDC() const { return m_MGLDC; }
|
|
void SetMGLDC(MGLDevCtx *mgldc, bool OwnsMGLDC = false);
|
|
|
|
protected:
|
|
virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
|
|
int style = wxFLOOD_SURFACE);
|
|
|
|
virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const;
|
|
|
|
virtual void DoDrawPoint(wxCoord x, wxCoord y);
|
|
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 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);
|
|
|
|
// this is gnarly - we can't even call this function DoSetClippingRegion()
|
|
// because of virtual function hiding
|
|
virtual void DoSetClippingRegionAsRegion(const wxRegion& region);
|
|
virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
|
|
wxCoord width, wxCoord height);
|
|
|
|
virtual void DoGetSize(int *width, int *height) 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);
|
|
|
|
// implementation from now on:
|
|
|
|
protected:
|
|
// setup newly attached MGLDevCtx for wxDC's use
|
|
// (does things like setting RGB blending mode for antialiased texts):
|
|
void InitializeMGLDC();
|
|
|
|
// common part of DoDrawText() and DoDrawRotatedText()
|
|
void DrawAnyText(const wxString& text, wxCoord x, wxCoord y);
|
|
|
|
// MGL uses pens as both wxPens and wxBrushes, so we have to
|
|
// switch them as needed:
|
|
void SelectPen();
|
|
void SelectBrush();
|
|
void SelectMGLStipplePen(int style);
|
|
void SelectMGLFatPen(int style, int flag);
|
|
|
|
// Select m_font into m_MGLDC:
|
|
bool SelectMGLFont();
|
|
|
|
// Convert wxWin logical function to MGL rop:
|
|
int LogicalFunctionToMGLRop(int logFunc) const;
|
|
|
|
// Unified implementation of DrawIcon, DrawBitmap and Blit:
|
|
void DoDrawSubBitmap(const wxBitmap &bmp,
|
|
wxCoord x, wxCoord y, wxCoord w, wxCoord h,
|
|
wxCoord destx, wxCoord desty, int rop, bool useMask);
|
|
|
|
// MGL DC class we use:
|
|
MGLDevCtx *m_MGLDC;
|
|
bool m_OwnsMGLDC:1;
|
|
|
|
// helper variables for SelectXXXX():
|
|
bool m_penSelected;
|
|
bool m_brushSelected;
|
|
bool m_downloadedPatterns[2];
|
|
|
|
// MGL does not render lines with width>1 with endings centered
|
|
// at given coords but with top left corner of the pen at them,
|
|
// these offsets are used to correct it. They are computed by
|
|
// SelectPen.
|
|
int m_penOfsX, m_penOfsY;
|
|
|
|
double m_mm_to_pix_x, m_mm_to_pix_y;
|
|
|
|
wxPalette m_oldPalette;
|
|
|
|
wxRegion m_currentClippingRegion;
|
|
wxRegion m_globalClippingRegion;
|
|
|
|
// wxDC::Blit handles memoryDCs as special cases :(
|
|
bool m_isMemDC;
|
|
|
|
font_t *m_mglFont;
|
|
};
|
|
|
|
#endif
|
|
// _WX_DC_H_
|