/////////////////////////////////////////////////////////////////////////////
-// Name: dc.cpp
+// Name: src/palmos/dc.cpp
// Purpose: wxDC class
-// Author: William Osborne
+// Author: William Osborne - minimal working wxPalmOS port
// Modified by:
// Created: 10/13/04
-// RCS-ID: $Id:
+// RCS-ID: $Id$
// Copyright: (c) William Osborne
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// headers
// ---------------------------------------------------------------------------
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
- #pragma implementation "dc.h"
-#endif
+#include <string.h>
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#endif
#ifndef WX_PRECOMP
+ #include "wx/image.h"
#include "wx/window.h"
#include "wx/dc.h"
#include "wx/utils.h"
#include "wx/dcmemory.h"
#include "wx/log.h"
#include "wx/icon.h"
+ #include "wx/dcprint.h"
+ #include "wx/module.h"
#endif
#include "wx/sysopt.h"
-#include "wx/dcprint.h"
-#include "wx/module.h"
-#include "wx/dynload.h"
-
-#ifdef wxHAVE_RAW_BITMAP
-#include "wx/rawbmp.h"
-#endif
+#include "wx/dynlib.h"
-#include <string.h>
-#include <math.h>
+#include "wx/palmos/dc.h"
#ifndef AC_SRC_ALPHA
-#define AC_SRC_ALPHA 1
+ #define AC_SRC_ALPHA 1
+#endif
+
+#ifndef LAYOUT_RTL
+ #define LAYOUT_RTL 1
#endif
/* Quaternary raster codes */
#define MAKEROP4(fore,back) (DWORD)((((back) << 8) & 0xFF000000) | (fore))
#endif
-IMPLEMENT_ABSTRACT_CLASS(wxDC, wxDCBase)
+// apparently with MicroWindows it is possible that HDC is 0 so we have to
+// check for this ourselves
+#ifdef __WXMICROWIN__
+ #define WXMICROWIN_CHECK_HDC if ( !GetHDC() ) return;
+ #define WXMICROWIN_CHECK_HDC_RET(x) if ( !GetHDC() ) return x;
+#else
+ #define WXMICROWIN_CHECK_HDC
+ #define WXMICROWIN_CHECK_HDC_RET(x)
+#endif
+
+IMPLEMENT_ABSTRACT_CLASS(wxPalmDCImpl, wxDCImpl)
// ---------------------------------------------------------------------------
// constants
// ---------------------------------------------------------------------------
-static const int VIEWPORT_EXTENT = 1000;
+// ROPs which don't have standard names (see "Ternary Raster Operations" in the
+// MSDN docs for how this and other numbers in wxDC::Blit() are obtained)
+#define DSTCOPY 0x00AA0029 // a.k.a. NOP operation
-static const int MM_POINTS = 9;
-static const int MM_METRIC = 10;
-
-// usually this is defined in math.h
-#ifndef M_PI
- static const double M_PI = 3.14159265358979323846;
-#endif // M_PI
+// ----------------------------------------------------------------------------
+// macros for logical <-> device coords conversion
+// ----------------------------------------------------------------------------
-#define DSTCOPY 0x00AA0029
+/*
+ We currently let Windows do all the translations itself so these macros are
+ not really needed (any more) but keep them to enhance readability of the
+ code by allowing to see where are the logical and where are the device
+ coordinates used.
+ */
+
+#ifdef __WXWINCE__
+ #define XLOG2DEV(x) ((x-m_logicalOriginX)*m_signX)
+ #define YLOG2DEV(y) ((y-m_logicalOriginY)*m_signY)
+ #define XDEV2LOG(x) ((x)*m_signX+m_logicalOriginX)
+ #define YDEV2LOG(y) ((y)*m_signY+m_logicalOriginY)
+#else
+ #define XLOG2DEV(x) (x)
+ #define YLOG2DEV(y) (y)
+ #define XDEV2LOG(x) (x)
+ #define YDEV2LOG(y) (y)
+#endif
// ---------------------------------------------------------------------------
// private functions
// private classes
// ----------------------------------------------------------------------------
+#if wxUSE_DYNLIB_CLASS
+
+// helper class to cache dynamically loaded libraries and not attempt reloading
+// them if it fails
+class wxOnceOnlyDLLLoader
+{
+public:
+ // ctor argument must be a literal string as we don't make a copy of it!
+ wxOnceOnlyDLLLoader(const wxChar *dllName)
+ : m_dllName(dllName)
+ {
+ }
+
+
+ // return the symbol with the given name or NULL if the DLL not loaded
+ // or symbol not present
+ void *GetSymbol(const wxChar *name)
+ {
+ // we're prepared to handle errors here
+ wxLogNull noLog;
+
+ if ( m_dllName )
+ {
+ m_dll.Load(m_dllName);
+
+ // reset the name whether we succeeded or failed so that we don't
+ // try again the next time
+ m_dllName = NULL;
+ }
+
+ return m_dll.IsLoaded() ? m_dll.GetSymbol(name) : NULL;
+ }
+
+ void Unload()
+ {
+ if ( m_dll.IsLoaded() )
+ {
+ m_dll.Unload();
+ }
+ }
+
+private:
+ wxDynamicLibrary m_dll;
+ const wxChar *m_dllName;
+};
+
+#endif // wxUSE_DYNLIB_CLASS
+
// ===========================================================================
// implementation
// ===========================================================================
// ---------------------------------------------------------------------------
-// wxDC
+// wxPalmDCImpl
// ---------------------------------------------------------------------------
-// Default constructor
-wxDC::wxDC()
+wxPalmDCImpl::wxPalmDCImpl( wxDC *owner, WXHDC hDC ) :
+ wxDCImpl( owner )
{
+ Init();
+ m_hDC = hDC;
}
-wxDC::~wxDC()
+wxPalmDCImpl::~wxPalmDCImpl()
{
}
// This will select current objects out of the DC,
// which is what you have to do before deleting the
// DC.
-void wxDC::SelectOldObjects(WXHDC dc)
+void wxPalmDCImpl::SelectOldObjects(WXHDC dc)
{
}
// clipping
// ---------------------------------------------------------------------------
-void wxDC::UpdateClipBox()
+void wxPalmDCImpl::UpdateClipBox()
{
}
void
-wxDC::DoGetClippingBox(wxCoord *x, wxCoord *y, wxCoord *w, wxCoord *h) const
+wxPalmDCImpl::DoGetClippingBox(wxCoord *x, wxCoord *y, wxCoord *w, wxCoord *h) const
{
}
-// common part of DoSetClippingRegion() and DoSetClippingRegionAsRegion()
-void wxDC::SetClippingHrgn(WXHRGN hrgn)
+void wxPalmDCImpl::DoSetClippingRegion(wxCoord x, wxCoord y, wxCoord w, wxCoord h)
{
}
-void wxDC::DoSetClippingRegion(wxCoord x, wxCoord y, wxCoord w, wxCoord h)
+void wxPalmDCImpl::DoSetDeviceClippingRegion(const wxRegion& region)
{
}
-void wxDC::DoSetClippingRegionAsRegion(const wxRegion& region)
-{
-}
-
-void wxDC::DestroyClippingRegion()
+void wxPalmDCImpl::DestroyClippingRegion()
{
}
// query capabilities
// ---------------------------------------------------------------------------
-bool wxDC::CanDrawBitmap() const
+bool wxPalmDCImpl::CanDrawBitmap() const
{
return false;
}
-bool wxDC::CanGetTextExtent() const
+bool wxPalmDCImpl::CanGetTextExtent() const
{
return false;
}
-int wxDC::GetDepth() const
+int wxPalmDCImpl::GetDepth() const
{
return 0;
}
// drawing
// ---------------------------------------------------------------------------
-void wxDC::Clear()
+void wxPalmDCImpl::Clear()
{
}
-bool wxDC::DoFloodFill(wxCoord x, wxCoord y, const wxColour& col, int style)
+bool wxPalmDCImpl::DoFloodFill(wxCoord WXUNUSED_IN_WINCE(x),
+ wxCoord WXUNUSED_IN_WINCE(y),
+ const wxColour& WXUNUSED_IN_WINCE(col),
+ int WXUNUSED_IN_WINCE(style))
{
return false;
}
-bool wxDC::DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const
+bool wxPalmDCImpl::DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const
{
return false;
}
-void wxDC::DoCrossHair(wxCoord x, wxCoord y)
+void wxPalmDCImpl::DoCrossHair(wxCoord x, wxCoord y)
{
}
-void wxDC::DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
+void wxPalmDCImpl::DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
{
}
// Draws an arc of a circle, centred on (xc, yc), with starting point (x1, y1)
// and ending at (x2, y2)
-void wxDC::DoDrawArc(wxCoord x1, wxCoord y1,
+void wxPalmDCImpl::DoDrawArc(wxCoord x1, wxCoord y1,
wxCoord x2, wxCoord y2,
wxCoord xc, wxCoord yc)
{
}
-void wxDC::DoDrawCheckMark(wxCoord x1, wxCoord y1,
+void wxPalmDCImpl::DoDrawCheckMark(wxCoord x1, wxCoord y1,
wxCoord width, wxCoord height)
{
}
-void wxDC::DoDrawPoint(wxCoord x, wxCoord y)
+void wxPalmDCImpl::DoDrawPoint(wxCoord x, wxCoord y)
{
}
-void wxDC::DoDrawPolygon(int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset,int fillStyle)
+void wxPalmDCImpl::DoDrawPolygon(int n,
+ wxPoint points[],
+ wxCoord xoffset,
+ wxCoord yoffset,
+ int WXUNUSED_IN_WINCE(fillStyle))
{
}
void
-wxDC::DoDrawPolyPolygon(int n,
+wxPalmDCImpl::DoDrawPolyPolygon(int n,
int count[],
wxPoint points[],
wxCoord xoffset,
{
}
-void wxDC::DoDrawLines(int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset)
+void wxPalmDCImpl::DoDrawLines(int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset)
+{
+}
+
+void wxPalmDCImpl::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
{
}
-void wxDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
+void wxPalmDCImpl::DoDrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius)
{
}
-void wxDC::DoDrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius)
+void wxPalmDCImpl::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
{
}
-void wxDC::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
+#if wxUSE_SPLINES
+void wxPalmDCImpl::DoDrawSpline(const wxPointList *points)
{
}
+#endif
-void wxDC::DoDrawEllipticArc(wxCoord x,wxCoord y,wxCoord w,wxCoord h,double sa,double ea)
+// Chris Breeze 20/5/98: first implementation of DrawEllipticArc on Windows
+void wxPalmDCImpl::DoDrawEllipticArc(wxCoord x,wxCoord y,wxCoord w,wxCoord h,double sa,double ea)
{
}
-void wxDC::DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y)
+void wxPalmDCImpl::DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y)
{
}
-void wxDC::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask )
+void wxPalmDCImpl::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask )
{
}
-void wxDC::DoDrawText(const wxString& text, wxCoord x, wxCoord y)
+void wxPalmDCImpl::DoDrawText(const wxString& text, wxCoord x, wxCoord y)
{
}
-void wxDC::DrawAnyText(const wxString& text, wxCoord x, wxCoord y)
+void wxPalmDCImpl::DrawAnyText(const wxString& text, wxCoord x, wxCoord y)
{
}
-void wxDC::DoDrawRotatedText(const wxString& text,
+void wxPalmDCImpl::DoDrawRotatedText(const wxString& text,
wxCoord x, wxCoord y,
double angle)
{
#if wxUSE_PALETTE
-void wxDC::DoSelectPalette(bool realize)
+void wxPalmDCImpl::DoSelectPalette(bool realize)
{
}
-void wxDC::SetPalette(const wxPalette& palette)
+void wxPalmDCImpl::SetPalette(const wxPalette& palette)
{
}
-void wxDC::InitializePalette()
+void wxPalmDCImpl::InitializePalette()
{
}
#endif // wxUSE_PALETTE
-void wxDC::SetFont(const wxFont& font)
+// SetFont/Pen/Brush() really ask to be implemented as a single template
+// function... but doing it is not worth breaking OpenWatcom build <sigh>
+
+void wxPalmDCImpl::SetFont(const wxFont& font)
{
}
-void wxDC::SetPen(const wxPen& pen)
+void wxPalmDCImpl::SetPen(const wxPen& pen)
{
}
-void wxDC::SetBrush(const wxBrush& brush)
+void wxPalmDCImpl::SetBrush(const wxBrush& brush)
{
}
-void wxDC::SetBackground(const wxBrush& brush)
+void wxPalmDCImpl::SetBackground(const wxBrush& brush)
{
}
-void wxDC::SetBackgroundMode(int mode)
+void wxPalmDCImpl::SetBackgroundMode(int mode)
{
}
-void wxDC::SetLogicalFunction(int function)
+void wxPalmDCImpl::SetLogicalFunction(int function)
{
}
-void wxDC::SetRop(WXHDC dc)
+void wxPalmDCImpl::SetRop(WXHDC dc)
{
}
-bool wxDC::StartDoc(const wxString& WXUNUSED(message))
+bool wxPalmDCImpl::StartDoc(const wxString& WXUNUSED(message))
{
+ // We might be previewing, so return true to let it continue.
return true;
}
-void wxDC::EndDoc()
+void wxPalmDCImpl::EndDoc()
{
}
-void wxDC::StartPage()
+void wxPalmDCImpl::StartPage()
{
}
-void wxDC::EndPage()
+void wxPalmDCImpl::EndPage()
{
}
// text metrics
// ---------------------------------------------------------------------------
-wxCoord wxDC::GetCharHeight() const
+wxCoord wxPalmDCImpl::GetCharHeight() const
{
return 0;
}
-wxCoord wxDC::GetCharWidth() const
+wxCoord wxPalmDCImpl::GetCharWidth() const
{
return 0;
}
-void wxDC::DoGetTextExtent(const wxString& string, wxCoord *x, wxCoord *y,
+void wxPalmDCImpl::DoGetTextExtent(const wxString& string, wxCoord *x, wxCoord *y,
wxCoord *descent, wxCoord *externalLeading,
- wxFont *font) const
+ const wxFont *font) const
{
}
-bool wxDC::DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const
+// Each element of the array will be the width of the string up to and
+// including the coresoponding character in text.
+
+bool wxPalmDCImpl::DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const
{
return false;
}
-
-
-
-void wxDC::SetMapMode(int mode)
+void wxPalmDCImpl::RealizeScaleAndOrigin()
{
}
-void wxDC::SetUserScale(double x, double y)
+void wxPalmDCImpl::SetMapMode(int mode)
{
}
-void wxDC::SetAxisOrientation(bool xLeftRight, bool yBottomUp)
+void wxPalmDCImpl::SetUserScale(double x, double y)
{
}
-void wxDC::SetSystemScale(double x, double y)
+void wxPalmDCImpl::SetAxisOrientation(bool xLeftRight,
+ bool yBottomUp)
{
}
-void wxDC::SetLogicalOrigin(wxCoord x, wxCoord y)
+void wxPalmDCImpl::SetLogicalOrigin(wxCoord x, wxCoord y)
{
}
-void wxDC::SetDeviceOrigin(wxCoord x, wxCoord y)
+void wxPalmDCImpl::SetDeviceOrigin(wxCoord x, wxCoord y)
{
}
// ---------------------------------------------------------------------------
-// coordinates transformations
+// bit blit
// ---------------------------------------------------------------------------
-wxCoord wxDCBase::DeviceToLogicalX(wxCoord x) const
-{
- return 0;
-}
-
-wxCoord wxDCBase::DeviceToLogicalXRel(wxCoord x) const
-{
- return 0;
-}
-
-wxCoord wxDCBase::DeviceToLogicalY(wxCoord y) const
-{
- return 0;
-}
-
-wxCoord wxDCBase::DeviceToLogicalYRel(wxCoord y) const
-{
- return 0;
-}
-
-wxCoord wxDCBase::LogicalToDeviceX(wxCoord x) const
-{
- return 0;
-}
-
-wxCoord wxDCBase::LogicalToDeviceXRel(wxCoord x) const
-{
- return 0;
-}
-
-wxCoord wxDCBase::LogicalToDeviceY(wxCoord y) const
+bool wxPalmDCImpl::DoBlit(wxCoord dstX, wxCoord dstY,
+ wxCoord dstWidth, wxCoord dstHeight,
+ wxDC *source,
+ wxCoord srcX, wxCoord srcY,
+ int rop, bool useMask,
+ wxCoord srcMaskX, wxCoord srcMaskY)
{
- return 0;
+ return false;
}
-wxCoord wxDCBase::LogicalToDeviceYRel(wxCoord y) const
-{
- return 0;
-}
-
-// ---------------------------------------------------------------------------
-// bit blit
-// ---------------------------------------------------------------------------
-
-bool wxDC::DoBlit(wxCoord xdest, wxCoord ydest,
- wxCoord width, wxCoord height,
- wxDC *source, wxCoord xsrc, wxCoord ysrc,
- int rop, bool useMask,
- wxCoord xsrcMask, wxCoord ysrcMask)
+bool wxPalmDCImpl::DoStretchBlit(wxCoord xdest, wxCoord ydest,
+ wxCoord dstWidth, wxCoord dstHeight,
+ wxDC *source,
+ wxCoord xsrc, wxCoord ysrc,
+ wxCoord srcWidth, wxCoord srcHeight,
+ int rop, bool useMask,
+ wxCoord xsrcMask, wxCoord ysrcMask)
{
return false;
}
-void wxDC::DoGetSize(int *w, int *h) const
+void wxPalmDCImpl::GetDeviceSize(int *width, int *height) const
{
}
-void wxDC::DoGetSizeMM(int *w, int *h) const
+void wxPalmDCImpl::DoGetSizeMM(int *w, int *h) const
{
}
-wxSize wxDC::GetPPI() const
+wxSize wxPalmDCImpl::GetPPI() const
{
return wxSize(0, 0);
}
-void wxDC::SetLogicalScale(double x, double y)
+// For use by wxWidgets only, unless custom units are required.
+void wxPalmDCImpl::SetLogicalScale(double x, double y)
{
}
#if wxUSE_DC_CACHEING
-wxList wxDC::sm_bitmapCache;
-wxList wxDC::sm_dcCache;
+/*
+ * This implementation is a bit ugly and uses the old-fashioned wxList class, so I will
+ * improve it in due course, either using arrays, or simply storing pointers to one
+ * entry for the bitmap, and two for the DCs. -- JACS
+ */
+
+wxObjectList wxPalmDCImpl::sm_bitmapCache;
+wxObjectList wxPalmDCImpl::sm_dcCache;
wxDCCacheEntry::wxDCCacheEntry(WXHBITMAP hBitmap, int w, int h, int depth)
{
+ m_bitmap = hBitmap;
+ m_dc = 0;
+ m_width = w;
+ m_height = h;
+ m_depth = depth;
}
wxDCCacheEntry::wxDCCacheEntry(WXHDC hDC, int depth)
{
}
-wxDCCacheEntry* wxDC::FindBitmapInCache(WXHDC dc, int w, int h)
+wxDCCacheEntry* wxPalmDCImpl::FindBitmapInCache(WXHDC dc, int w, int h)
{
return NULL;
}
-wxDCCacheEntry* wxDC::FindDCInCache(wxDCCacheEntry* notThis, WXHDC dc)
+wxDCCacheEntry* wxPalmDCImpl::FindDCInCache(wxDCCacheEntry* notThis, WXHDC dc)
{
return NULL;
}
-void wxDC::AddToBitmapCache(wxDCCacheEntry* entry)
+void wxPalmDCImpl::AddToBitmapCache(wxDCCacheEntry* entry)
{
}
-void wxDC::AddToDCCache(wxDCCacheEntry* entry)
+void wxPalmDCImpl::AddToDCCache(wxDCCacheEntry* entry)
{
}
-void wxDC::ClearCache()
+void wxPalmDCImpl::ClearCache()
{
}
+// Clean up cache at app exit
class wxDCModule : public wxModule
{
public:
virtual bool OnInit() { return true; }
- virtual void OnExit() { wxDC::ClearCache(); }
+ virtual void OnExit() { wxPalmDCImpl::ClearCache(); }
private:
DECLARE_DYNAMIC_CLASS(wxDCModule)
#endif // wxUSE_DC_CACHEING
+void wxPalmDCImpl::DoGradientFillLinear (const wxRect& rect,
+ const wxColour& initialColour,
+ const wxColour& destColour,
+ wxDirection nDirection)
+{
+}
+
+#if wxUSE_DYNLIB_CLASS
+
+wxLayoutDirection wxPalmDCImpl::GetLayoutDirection() const
+{
+ DWORD layout = wxGetDCLayout(GetHdc());
+
+ if ( layout == (DWORD)-1 )
+ return wxLayout_Default;
+
+ return layout & LAYOUT_RTL ? wxLayout_RightToLeft : wxLayout_LeftToRight;
+}
+
+void wxPalmDCImpl::SetLayoutDirection(wxLayoutDirection dir)
+{
+}
+
+#else // !wxUSE_DYNLIB_CLASS
+
+// we can't provide RTL support without dynamic loading, so stub it out
+wxLayoutDirection wxPalmDCImpl::GetLayoutDirection() const
+{
+ return wxLayout_Default;
+}
+
+void wxPalmDCImpl::SetLayoutDirection(wxLayoutDirection WXUNUSED(dir))
+{
+}
+
+#endif // wxUSE_DYNLIB_CLASS/!wxUSE_DYNLIB_CLASS
projects / wxWidgets.git / blobdiff