621b83d9b3
virtual and implement them like any other method
in the wxDC classes, not only in the their files
but somehow belonging to the wxDCBase class.
This is required for plugging in differnt DC backends
with different conversions.
Ideally (and absolutely possible ) all these methods
should be removed and just the one in wxDCBase
should stay using values set in the various
derived classes.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@45741 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
277 lines
9.5 KiB
C++
277 lines
9.5 KiB
C++
/////////////////////////////////////////////////////////////////////////////
|
|
// Name: wx/palmos/dc.h
|
|
// Purpose: wxDC class
|
|
// Author: William Osborne - minimal working wxPalmOS port
|
|
// Modified by:
|
|
// Created: 10/13/04
|
|
// RCS-ID: $Id$
|
|
// Copyright: (c) William Osborne
|
|
// Licence: wxWindows licence
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef _WX_DC_H_
|
|
#define _WX_DC_H_
|
|
|
|
#include "wx/defs.h"
|
|
#include "wx/dc.h"
|
|
|
|
// ---------------------------------------------------------------------------
|
|
// macros
|
|
// ---------------------------------------------------------------------------
|
|
|
|
#if wxUSE_DC_CACHEING
|
|
/*
|
|
* Cached blitting, maintaining a cache
|
|
* of bitmaps required for transparent blitting
|
|
* instead of constant creation/deletion
|
|
*/
|
|
|
|
class wxDCCacheEntry: public wxObject
|
|
{
|
|
public:
|
|
wxDCCacheEntry(WXHBITMAP hBitmap, int w, int h, int depth);
|
|
wxDCCacheEntry(WXHDC hDC, int depth);
|
|
virtual ~wxDCCacheEntry();
|
|
|
|
WXHBITMAP m_bitmap;
|
|
WXHDC m_dc;
|
|
int m_width;
|
|
int m_height;
|
|
int m_depth;
|
|
};
|
|
#endif
|
|
|
|
class WXDLLEXPORT wxDC : public wxDCBase
|
|
{
|
|
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);
|
|
#if wxUSE_PALETTE
|
|
virtual void SetPalette(const wxPalette& palette);
|
|
#endif // wxUSE_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,
|
|
const wxFont *theFont = NULL) const;
|
|
virtual bool DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) 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 SetSystemScale(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 wxCoord DeviceToLogicalX(wxCoord x) const;
|
|
virtual wxCoord DeviceToLogicalY(wxCoord y) const;
|
|
virtual wxCoord DeviceToLogicalXRel(wxCoord x) const;
|
|
virtual wxCoord DeviceToLogicalYRel(wxCoord y) const;
|
|
virtual wxCoord LogicalToDeviceX(wxCoord x) const;
|
|
virtual wxCoord LogicalToDeviceY(wxCoord y) const;
|
|
virtual wxCoord LogicalToDeviceXRel(wxCoord x) const;
|
|
virtual wxCoord LogicalToDeviceYRel(wxCoord y) const ;
|
|
|
|
// implementation from now on
|
|
// --------------------------
|
|
|
|
virtual void SetRop(WXHDC cdc);
|
|
virtual void SelectOldObjects(WXHDC dc);
|
|
|
|
wxWindow *GetWindow() const { return m_canvas; }
|
|
void SetWindow(wxWindow *win)
|
|
{
|
|
m_canvas = win;
|
|
|
|
#if wxUSE_PALETTE
|
|
// if we have palettes use the correct one for this window
|
|
InitializePalette();
|
|
#endif // wxUSE_PALETTE
|
|
}
|
|
|
|
WXHDC GetHDC() const { return m_hDC; }
|
|
void SetHDC(WXHDC dc, bool bOwnsDC = FALSE)
|
|
{
|
|
m_hDC = dc;
|
|
m_bOwnsDC = bOwnsDC;
|
|
|
|
// we might have a pre existing clipping region, make sure that we
|
|
// return it if asked -- but avoid calling ::GetClipBox() right now as
|
|
// it could be unnecessary wasteful
|
|
m_clipping = true;
|
|
m_clipX1 =
|
|
m_clipX2 = 0;
|
|
}
|
|
|
|
const wxBitmap& GetSelectedBitmap() const { return m_selectedBitmap; }
|
|
wxBitmap& GetSelectedBitmap() { return m_selectedBitmap; }
|
|
|
|
// update the internal clip box variables
|
|
void UpdateClipBox();
|
|
|
|
#if wxUSE_DC_CACHEING
|
|
static wxDCCacheEntry* FindBitmapInCache(WXHDC hDC, int w, int h);
|
|
static wxDCCacheEntry* FindDCInCache(wxDCCacheEntry* notThis, WXHDC hDC);
|
|
|
|
static void AddToBitmapCache(wxDCCacheEntry* entry);
|
|
static void AddToDCCache(wxDCCacheEntry* entry);
|
|
static void ClearCache();
|
|
#endif
|
|
|
|
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 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);
|
|
|
|
// 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 DoGetClippingBox(wxCoord *x, wxCoord *y,
|
|
wxCoord *w, wxCoord *h) const;
|
|
|
|
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);
|
|
virtual void DoDrawPolyPolygon(int n, int count[], wxPoint points[],
|
|
wxCoord xoffset, wxCoord yoffset,
|
|
int fillStyle = wxODDEVEN_RULE);
|
|
|
|
|
|
#if wxUSE_PALETTE
|
|
// MSW specific, select a logical palette into the HDC
|
|
// (tell windows to translate pixel from other palettes to our custom one
|
|
// and vice versa)
|
|
// Realize tells it to also reset the system palette to this one.
|
|
void DoSelectPalette(bool realize = FALSE);
|
|
|
|
// Find out what palette our parent window has, then select it into the dc
|
|
void InitializePalette();
|
|
#endif // wxUSE_PALETTE
|
|
|
|
// common part of DoDrawText() and DoDrawRotatedText()
|
|
void DrawAnyText(const wxString& text, wxCoord x, wxCoord y);
|
|
|
|
// common part of DoSetClippingRegion() and DoSetClippingRegionAsRegion()
|
|
void SetClippingHrgn(WXHRGN hrgn);
|
|
|
|
// MSW-specific member variables
|
|
// -----------------------------
|
|
|
|
// the window associated with this DC (may be NULL)
|
|
wxWindow *m_canvas;
|
|
|
|
wxBitmap m_selectedBitmap;
|
|
|
|
// TRUE => DeleteDC() in dtor, FALSE => only ReleaseDC() it
|
|
bool m_bOwnsDC:1;
|
|
|
|
// our HDC
|
|
WXHDC m_hDC;
|
|
|
|
// Store all old GDI objects when do a SelectObject, so we can select them
|
|
// back in (this unselecting user's objects) so we can safely delete the
|
|
// DC.
|
|
WXHBITMAP m_oldBitmap;
|
|
WXHPEN m_oldPen;
|
|
WXHBRUSH m_oldBrush;
|
|
WXHFONT m_oldFont;
|
|
|
|
#if wxUSE_PALETTE
|
|
WXHPALETTE m_oldPalette;
|
|
#endif // wxUSE_PALETTE
|
|
|
|
#if wxUSE_DC_CACHEING
|
|
static wxList sm_bitmapCache;
|
|
static wxList sm_dcCache;
|
|
#endif
|
|
|
|
DECLARE_DYNAMIC_CLASS(wxDC)
|
|
DECLARE_NO_COPY_CLASS(wxDC)
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxDCTemp: a wxDC which doesn't free the given HDC (used by wxWidgets
|
|
// only/mainly)
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class WXDLLEXPORT wxDCTemp : public wxDC
|
|
{
|
|
public:
|
|
wxDCTemp(WXHDC hdc) { SetHDC(hdc); }
|
|
virtual ~wxDCTemp() { SetHDC((WXHDC)NULL); }
|
|
|
|
private:
|
|
DECLARE_NO_COPY_CLASS(wxDCTemp)
|
|
};
|
|
|
|
#endif
|
|
// _WX_DC_H_
|