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The Great wxRegion Refactoring:

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1. added wxRegionBase class and derive all wxRegions from it
2. also added wxRegionWithCombine for the ports providing Combine() method
   (MSW, OS2 and Mac) to reduce code duplication further
3. made sure region comparison works the same way in all ports (except those
   not implementing it) and added IsEqual() method


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41429 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2006-09-25 11:47:23 +00:00
parent b48f51ca74
commit 8a16d7370e
24 changed files with 751 additions and 1654 deletions
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106
include/wx/msw/region.h
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@@ -9,26 +9,10 @@
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_REGION_H_
#define _WX_REGION_H_
#ifndef _WX_MSW_REGION_H_
#define _WX_MSW_REGION_H_
#include "wx/gdiobj.h"
#include "wx/gdicmn.h"
class WXDLLEXPORT wxRect;
class WXDLLEXPORT wxPoint;
// So far, for internal use only
enum wxRegionOp
{
wxRGN_AND, // Creates the intersection of the two combined regions.
wxRGN_COPY, // Creates a copy of the region identified by hrgnSrc1.
wxRGN_DIFF, // Combines the parts of hrgnSrc1 that are not part of hrgnSrc2.
wxRGN_OR, // Creates the union of two combined regions.
wxRGN_XOR // Creates the union of two combined regions except for any overlapping areas.
};
class WXDLLEXPORT wxRegion : public wxGDIObject
class WXDLLEXPORT wxRegion : public wxRegionWithCombine
{
public:
wxRegion();
@@ -49,74 +33,9 @@ public:
virtual ~wxRegion();
// Modify region
// -------------
// Clear current region
void Clear();
// Move the region
bool Offset(wxCoord x, wxCoord y);
// Union rectangle or region with this.
bool Union(wxCoord x, wxCoord y, wxCoord width, wxCoord height) { return Combine(x, y, width, height, wxRGN_OR); }
bool Union(const wxRect& rect) { return Combine(rect, wxRGN_OR); }
bool Union(const wxRegion& region) { return Combine(region, wxRGN_OR); }
// Intersect rectangle or region with this.
bool Intersect(wxCoord x, wxCoord y, wxCoord width, wxCoord height) { return Combine(x, y, width, height, wxRGN_AND); }
bool Intersect(const wxRect& rect) { return Combine(rect, wxRGN_AND); }
bool Intersect(const wxRegion& region) { return Combine(region, wxRGN_AND); }
// Subtract rectangle or region from this:
// Combines the parts of 'this' that are not part of the second region.
bool Subtract(wxCoord x, wxCoord y, wxCoord width, wxCoord height) { return Combine(x, y, width, height, wxRGN_DIFF); }
bool Subtract(const wxRect& rect) { return Combine(rect, wxRGN_DIFF); }
bool Subtract(const wxRegion& region) { return Combine(region, wxRGN_DIFF); }
// XOR: the union of two combined regions except for any overlapping areas.
bool Xor(wxCoord x, wxCoord y, wxCoord width, wxCoord height) { return Combine(x, y, width, height, wxRGN_XOR); }
bool Xor(const wxRect& rect) { return Combine(rect, wxRGN_XOR); }
bool Xor(const wxRegion& region) { return Combine(region, wxRGN_XOR); }
// Information on region
// ---------------------
// Outer bounds of region
void GetBox(wxCoord& x, wxCoord& y, wxCoord&w, wxCoord &h) const;
wxRect GetBox() const ;
// Is region empty?
bool Empty() const;
inline bool IsEmpty() const { return Empty(); }
// Tests
// Does the region contain the point (x,y)?
wxRegionContain Contains(wxCoord x, wxCoord y) const;
// Does the region contain the point pt?
wxRegionContain Contains(const wxPoint& pt) const;
// Does the region contain the rectangle (x, y, w, h)?
wxRegionContain Contains(wxCoord x, wxCoord y, wxCoord w, wxCoord h) const;
// Does the region contain the rectangle rect?
wxRegionContain Contains(const wxRect& rect) const;
// Convert the region to a B&W bitmap with the white pixels being inside
// the region.
wxBitmap ConvertToBitmap() const;
// Use the non-transparent pixels of a wxBitmap for the region to combine
// with this region. First version takes transparency from bitmap's mask,
// second lets the user specify the colour to be treated as transparent
// along with an optional tolerance value.
// NOTE: implemented in common/rgncmn.cpp
bool Union(const wxBitmap& bmp);
bool Union(const wxBitmap& bmp,
const wxColour& transColour, int tolerance = 0);
// Internal
bool Combine(wxCoord x, wxCoord y, wxCoord width, wxCoord height, wxRegionOp op);
bool Combine(const wxRegion& region, wxRegionOp op);
bool Combine(const wxRect& rect, wxRegionOp op);
// wxRegionBase methods
virtual void Clear();
virtual bool IsEmpty() const;
// Get internal region handle
WXHRGN GetHRGN() const;
@@ -125,6 +44,14 @@ protected:
virtual wxObjectRefData *CreateRefData() const;
virtual wxObjectRefData *CloneRefData(const wxObjectRefData *data) const;
virtual bool DoIsEqual(const wxRegion& region) const;
virtual bool DoGetBox(wxCoord& x, wxCoord& y, wxCoord& w, wxCoord& h) const;
virtual wxRegionContain DoContainsPoint(wxCoord x, wxCoord y) const;
virtual wxRegionContain DoContainsRect(const wxRect& rect) const;
virtual bool DoOffset(wxCoord x, wxCoord y);
virtual bool DoCombine(const wxRegion& region, wxRegionOp op);
friend class WXDLLEXPORT wxRegionIterator;
DECLARE_DYNAMIC_CLASS(wxRegion)
@@ -146,9 +73,7 @@ public:
bool HaveRects() const { return (m_current < m_numRects); }
#ifndef __SALFORDC__
operator bool () const { return HaveRects(); }
#endif
wxRegionIterator& operator++();
wxRegionIterator operator++(int);
@@ -174,5 +99,4 @@ private:
DECLARE_DYNAMIC_CLASS(wxRegionIterator)
};
#endif
// _WX_REGION_H_
#endif // _WX_MSW_REGION_H_