X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/68be9f090f422450d333385cf62c9b4d350674be..69936aea19dfef8d738abb6ed48a77ec6065e142:/include/wx/generic/dragimgg.h diff --git a/include/wx/generic/dragimgg.h b/include/wx/generic/dragimgg.h index f35a28cc6f..44ff82a6e5 100644 --- a/include/wx/generic/dragimgg.h +++ b/include/wx/generic/dragimgg.h @@ -1,4 +1,4 @@ -///////////////////////////////////////////////////////////////////////////// +////////////////////////////////////////////////////////////////////////////// // Name: wx/generic/dragimgg.h // Purpose: wxDragImage class: a kind of a cursor, that can cope // with more sophisticated images @@ -13,7 +13,7 @@ #ifndef _WX_DRAGIMGG_H_ #define _WX_DRAGIMGG_H_ -#ifdef __GNUG__ +#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) #pragma interface "dragimgg.h" #endif @@ -22,6 +22,7 @@ #include "wx/cursor.h" #include "wx/treectrl.h" #include "wx/listctrl.h" +#include "wx/log.h" /* To use this class, create a wxDragImage when you start dragging, for example: @@ -29,7 +30,7 @@ void MyTreeCtrl::OnBeginDrag(wxTreeEvent& event) { #ifdef __WXMSW__ - ::UpdateWindow((HWND) GetHWND()); // We need to implement this in wxWindows + ::UpdateWindow((HWND) GetHWND()); // We need to implement this in wxWidgets #endif CaptureMouse(); @@ -97,63 +98,139 @@ public: // Ctors & dtor //////////////////////////////////////////////////////////////////////////// - wxGenericDragImage(); - wxGenericDragImage(const wxBitmap& image, const wxCursor& cursor = wxNullCursor, const wxPoint& hotspot = wxPoint(0, 0)) + wxGenericDragImage(const wxCursor& cursor = wxNullCursor) + { + Init(); + Create(cursor); + } + + // Deprecated version of the above + wxGenericDragImage(const wxCursor& cursor, const wxPoint& cursorHotspot) + { + Init(); + Create(cursor, cursorHotspot); + } + + wxGenericDragImage(const wxBitmap& image, const wxCursor& cursor = wxNullCursor) { Init(); - Create(image, cursor, hotspot); + Create(image, cursor); } - wxGenericDragImage(const wxIcon& image, const wxCursor& cursor = wxNullCursor, const wxPoint& hotspot = wxPoint(0, 0)) + + // Deprecated version of the above + wxGenericDragImage(const wxBitmap& image, const wxCursor& cursor, const wxPoint& cursorHotspot) { Init(); - Create(image, cursor, hotspot); + Create(image, cursor, cursorHotspot); } - wxGenericDragImage(const wxString& str, const wxCursor& cursor = wxNullCursor, const wxPoint& hotspot = wxPoint(0, 0)) + + wxGenericDragImage(const wxIcon& image, const wxCursor& cursor = wxNullCursor) { Init(); - Create(str, cursor, hotspot); + Create(image, cursor); } + + // Deprecated version of the above + wxGenericDragImage(const wxIcon& image, const wxCursor& cursor, const wxPoint& cursorHotspot) + { + Init(); + + Create(image, cursor, cursorHotspot); + } + + wxGenericDragImage(const wxString& str, const wxCursor& cursor = wxNullCursor) + { + Init(); + + Create(str, cursor); + } + + // Deprecated version of the above + wxGenericDragImage(const wxString& str, const wxCursor& cursor, const wxPoint& cursorHotspot) + { + Init(); + + Create(str, cursor, cursorHotspot); + } + +#if wxUSE_TREECTRL wxGenericDragImage(const wxTreeCtrl& treeCtrl, wxTreeItemId& id) { Init(); Create(treeCtrl, id); } +#endif + +#if wxUSE_LISTCTRL wxGenericDragImage(const wxListCtrl& listCtrl, long id) { Init(); Create(listCtrl, id); } +#endif + ~wxGenericDragImage(); // 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); + bool Create(const wxCursor& cursor, const wxPoint& WXUNUSED(cursorHotspot)) + { + wxLogDebug(wxT("wxDragImage::Create: use of a cursor hotspot is now deprecated. Please omit this argument.")); + return Create(cursor); + } + // 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)); + bool Create(const wxBitmap& image, const wxCursor& cursor = wxNullCursor); + bool Create(const wxBitmap& image, const wxCursor& cursor, const wxPoint& WXUNUSED(cursorHotspot)) + { + wxLogDebug(wxT("wxDragImage::Create: use of a cursor hotspot is now deprecated. Please omit this argument.")); + return Create(image, cursor); + } // Create a drag image from an icon and optional cursor - bool Create(const wxIcon& image, const wxCursor& cursor = wxNullCursor, const wxPoint& hotspot = wxPoint(0, 0)); + bool Create(const wxIcon& image, const wxCursor& cursor = wxNullCursor); + bool Create(const wxIcon& image, const wxCursor& cursor, const wxPoint& WXUNUSED(cursorHotspot)) + { + wxLogDebug(wxT("wxDragImage::Create: use of a cursor hotspot is now deprecated. Please omit this argument.")); + return Create(image, cursor); + } // Create a drag image from a string and optional cursor - bool Create(const wxString& str, const wxCursor& cursor = wxNullCursor, const wxPoint& hotspot = wxPoint(0, 0)); + bool Create(const wxString& str, const wxCursor& cursor = wxNullCursor); + bool Create(const wxString& str, const wxCursor& cursor, const wxPoint& WXUNUSED(cursorHotspot)) + { + wxLogDebug(wxT("wxDragImage::Create: use of a cursor hotspot is now deprecated. Please omit this argument.")); + return Create(str, cursor); + } +#if wxUSE_TREECTRL // Create a drag image for the given tree control item bool Create(const wxTreeCtrl& treeCtrl, wxTreeItemId& id); +#endif +#if wxUSE_LISTCTRL // Create a drag image for the given list control item bool Create(const wxListCtrl& listCtrl, long id); +#endif // Begin drag. hotspot is the location of the drag position relative to the upper-left // corner of the image. - bool BeginDrag(const wxPoint& hotspot, wxWindow* window, bool fullScreen = FALSE, wxRect* rect = (wxRect*) NULL); + bool BeginDrag(const wxPoint& hotspot, wxWindow* window, bool fullScreen = false, wxRect* rect = (wxRect*) NULL); // Begin drag. hotspot is the location of the drag position relative to the upper-left // corner of the image. This is full screen only. fullScreenRect gives the @@ -178,17 +255,30 @@ 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; wxIcon m_icon; wxCursor m_cursor; wxCursor m_oldCursor; - wxPoint m_hotspot; +// wxPoint m_hotspot; + wxPoint m_offset; // The hostpot value passed to BeginDrag wxPoint m_position; bool m_isDirty; bool m_isShown; @@ -197,6 +287,8 @@ 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; @@ -205,6 +297,7 @@ protected: private: DECLARE_DYNAMIC_CLASS(wxGenericDragImage) + DECLARE_NO_COPY_CLASS(wxGenericDragImage) }; #endif