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This commit was manufactured by cvs2svn to create tag 'WX_2_2_8'.

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/tags/WX_2_2_8@12118 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Bryan Petty
2001-10-20 21:37:27 +00:00
parent dc3d889d0b
commit 32e9664653
2307 changed files with 371206 additions and 119844 deletions
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32
include/wx/generic/dragimgg.h
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@@ -97,7 +97,11 @@ public:
// Ctors & dtor
////////////////////////////////////////////////////////////////////////////
wxGenericDragImage();
wxGenericDragImage(const wxCursor& cursor = wxNullCursor, const wxPoint& hotspot = wxPoint(0, 0))
{
Init();
Create(cursor, hotspot);
}
wxGenericDragImage(const wxBitmap& image, const wxCursor& cursor = wxNullCursor, const wxPoint& hotspot = wxPoint(0, 0))
{
Init();
@@ -133,9 +137,16 @@ public:
// Attributes
////////////////////////////////////////////////////////////////////////////
// For efficiency, tell wxGenericDragImage to use a bitmap that's already
// created (e.g. from last drag)
void SetBackingBitmap(wxBitmap* bitmap) { m_pBackingBitmap = bitmap; }
// Operations
////////////////////////////////////////////////////////////////////////////
// Create a drag image with a virtual image (need to override DoDrawImage, GetImageRect)
bool Create(const wxCursor& cursor = wxNullCursor, const wxPoint& hotspot = wxPoint(0, 0));
// Create a drag image from a bitmap and optional cursor
bool Create(const wxBitmap& image, const wxCursor& cursor = wxNullCursor, const wxPoint& hotspot = wxPoint(0, 0));
@@ -178,10 +189,22 @@ public:
void Init();
wxRect GetImageRect(const wxPoint& pos) const;
// Override this if you are using a virtual image (drawing your own image)
virtual wxRect GetImageRect(const wxPoint& pos) const;
// Override this if you are using a virtual image (drawing your own image)
virtual bool DoDrawImage(wxDC& dc, const wxPoint& pos) const;
// Override this if you wish to draw the window contents to the backing bitmap
// yourself. This can be desirable if you wish to avoid flicker by not having to
// redraw the window itself before dragging in order to be graphic-minus-dragged-objects.
// Instead, paint the drag image's backing bitmap to be correct, and leave the window
// to be updated only when dragging the objects away (thus giving a smoother appearance).
virtual bool UpdateBackingFromWindow(wxDC& windowDC, wxMemoryDC& destDC,
const wxRect& sourceRect, const wxRect& destRect) const;
// Erase and redraw simultaneously if possible
bool RedrawImage(const wxPoint& oldPos, const wxPoint& newPos, bool eraseOld, bool drawNew);
virtual bool RedrawImage(const wxPoint& oldPos, const wxPoint& newPos, bool eraseOld, bool drawNew);
protected:
wxBitmap m_bitmap;
@@ -189,6 +212,7 @@ protected:
wxCursor m_cursor;
wxCursor m_oldCursor;
wxPoint m_hotspot;
wxPoint m_offset; // The hostpot value passed to BeginDrag
wxPoint m_position;
bool m_isDirty;
bool m_isShown;
@@ -197,6 +221,8 @@ protected:
// Stores the window contents while we're dragging the image around
wxBitmap m_backingBitmap;
wxBitmap* m_pBackingBitmap; // Pointer to existing backing bitmap
// (pass to wxGenericDragImage as an efficiency measure)
// A temporary bitmap for repairing/redrawing
wxBitmap m_repairBitmap;