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Import r67258 of the wxWidgets trunk, which I expect will before
long become wxWidgets 2.9.2, which in turn is expected to be the last 2.9 release before the 3.0 stable release. Since the full wxWidgets distribution is rather large, I have imported only the parts that we use, on a subdirectory basis: art include/wx/*.* include/wx/aui include/wx/cocoa include/wx/generic include/wx/gtk include/wx/meta include/wx/msw include/wx/osx include/wx/persist include/wx/private include/wx/protocol include/wx/unix src/aui src/common src/generic src/gtk src/msw src/osx src/unix git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@7380 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
Soren Jorvang
272
Externals/wxWidgets3/include/wx/generic/dragimgg.h
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272
Externals/wxWidgets3/include/wx/generic/dragimgg.h
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//////////////////////////////////////////////////////////////////////////////
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// Name: wx/generic/dragimgg.h
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// Purpose: wxDragImage class: a kind of a cursor, that can cope
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// with more sophisticated images
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// Author: Julian Smart
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// Modified by:
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// Created: 29/2/2000
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// RCS-ID: $Id: dragimgg.h 58757 2009-02-08 11:45:59Z VZ $
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// Copyright: (c) Julian Smart
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_DRAGIMGG_H_
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#define _WX_DRAGIMGG_H_
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#include "wx/bitmap.h"
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#include "wx/icon.h"
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#include "wx/cursor.h"
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#include "wx/treectrl.h"
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#include "wx/listctrl.h"
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#include "wx/log.h"
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#include "wx/overlay.h"
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/*
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To use this class, create a wxDragImage when you start dragging, for example:
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void MyTreeCtrl::OnBeginDrag(wxTreeEvent& event)
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{
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#ifdef __WXMSW__
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::UpdateWindow((HWND) GetHWND()); // We need to implement this in wxWidgets
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#endif
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CaptureMouse();
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m_dragImage = new wxDragImage(* this, itemId);
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m_dragImage->BeginDrag(wxPoint(0, 0), this);
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m_dragImage->Move(pt, this);
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m_dragImage->Show(this);
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...
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}
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In your OnMouseMove function, hide the image, do any display updating required,
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then move and show the image again:
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void MyTreeCtrl::OnMouseMove(wxMouseEvent& event)
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{
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if (m_dragMode == MY_TREE_DRAG_NONE)
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{
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event.Skip();
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return;
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}
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// Prevent screen corruption by hiding the image
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if (m_dragImage)
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m_dragImage->Hide(this);
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// Do some updating of the window, such as highlighting the drop target
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...
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#ifdef __WXMSW__
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if (updateWindow)
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::UpdateWindow((HWND) GetHWND());
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#endif
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// Move and show the image again
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m_dragImage->Move(event.GetPosition(), this);
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m_dragImage->Show(this);
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}
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Eventually we end the drag and delete the drag image.
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void MyTreeCtrl::OnLeftUp(wxMouseEvent& event)
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{
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...
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// End the drag and delete the drag image
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if (m_dragImage)
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{
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m_dragImage->EndDrag(this);
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delete m_dragImage;
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m_dragImage = NULL;
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}
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ReleaseMouse();
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}
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*/
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/*
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* wxGenericDragImage
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*/
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class WXDLLIMPEXP_CORE wxGenericDragImage: public wxObject
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{
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public:
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// Ctors & dtor
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////////////////////////////////////////////////////////////////////////////
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wxGenericDragImage(const wxCursor& cursor = wxNullCursor)
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{
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Init();
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Create(cursor);
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}
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wxGenericDragImage(const wxBitmap& image, const wxCursor& cursor = wxNullCursor)
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{
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Init();
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Create(image, cursor);
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}
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wxGenericDragImage(const wxIcon& image, const wxCursor& cursor = wxNullCursor)
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{
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Init();
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Create(image, cursor);
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}
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wxGenericDragImage(const wxString& str, const wxCursor& cursor = wxNullCursor)
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{
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Init();
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Create(str, cursor);
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}
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#if WXWIN_COMPATIBILITY_2_6
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// don't use in new code, use versions without hot spot parameter
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wxDEPRECATED( wxGenericDragImage(const wxCursor& cursor, const wxPoint& cursorHotspot) );
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wxDEPRECATED( wxGenericDragImage(const wxBitmap& image, const wxCursor& cursor, const wxPoint& cursorHotspot) );
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wxDEPRECATED( wxGenericDragImage(const wxIcon& image, const wxCursor& cursor, const wxPoint& cursorHotspot) );
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wxDEPRECATED( wxGenericDragImage(const wxString& str, const wxCursor& cursor, const wxPoint& cursorHotspot) );
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wxDEPRECATED( bool Create(const wxCursor& cursor, const wxPoint& cursorHotspot) );
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wxDEPRECATED( bool Create(const wxBitmap& image, const wxCursor& cursor, const wxPoint& cursorHotspot) );
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wxDEPRECATED( bool Create(const wxIcon& image, const wxCursor& cursor, const wxPoint& cursorHotspot) );
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wxDEPRECATED( bool Create(const wxString& str, const wxCursor& cursor, const wxPoint& cursorHotspot) );
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#endif // WXWIN_COMPATIBILITY_2_6
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#if wxUSE_TREECTRL
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wxGenericDragImage(const wxTreeCtrl& treeCtrl, wxTreeItemId& id)
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{
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Init();
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Create(treeCtrl, id);
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}
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#endif
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#if wxUSE_LISTCTRL
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wxGenericDragImage(const wxListCtrl& listCtrl, long id)
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{
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Init();
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Create(listCtrl, id);
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}
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#endif
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virtual ~wxGenericDragImage();
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// Attributes
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////////////////////////////////////////////////////////////////////////////
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#ifdef wxHAS_NATIVE_OVERLAY
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// backing store is not used when native overlays are
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void SetBackingBitmap(wxBitmap* WXUNUSED(bitmap)) { }
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#else
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// For efficiency, tell wxGenericDragImage to use a bitmap that's already
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// created (e.g. from last drag)
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void SetBackingBitmap(wxBitmap* bitmap) { m_pBackingBitmap = bitmap; }
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#endif // wxHAS_NATIVE_OVERLAY/!wxHAS_NATIVE_OVERLAY
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// Operations
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////////////////////////////////////////////////////////////////////////////
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// Create a drag image with a virtual image (need to override DoDrawImage, GetImageRect)
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bool Create(const wxCursor& cursor = wxNullCursor);
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// Create a drag image from a bitmap and optional cursor
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bool Create(const wxBitmap& image, const wxCursor& cursor = wxNullCursor);
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// Create a drag image from an icon and optional cursor
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bool Create(const wxIcon& image, const wxCursor& cursor = wxNullCursor);
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// Create a drag image from a string and optional cursor
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bool Create(const wxString& str, const wxCursor& cursor = wxNullCursor);
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#if wxUSE_TREECTRL
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// Create a drag image for the given tree control item
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bool Create(const wxTreeCtrl& treeCtrl, wxTreeItemId& id);
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#endif
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#if wxUSE_LISTCTRL
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// Create a drag image for the given list control item
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bool Create(const wxListCtrl& listCtrl, long id);
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#endif
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// Begin drag. hotspot is the location of the drag position relative to the upper-left
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// corner of the image.
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bool BeginDrag(const wxPoint& hotspot, wxWindow* window, bool fullScreen = false, wxRect* rect = NULL);
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// Begin drag. hotspot is the location of the drag position relative to the upper-left
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// corner of the image. This is full screen only. fullScreenRect gives the
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// position of the window on the screen, to restrict the drag to.
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bool BeginDrag(const wxPoint& hotspot, wxWindow* window, wxWindow* fullScreenRect);
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// End drag
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bool EndDrag();
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// Move the image: call from OnMouseMove. Pt is in window client coordinates if window
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// is non-NULL, or in screen coordinates if NULL.
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bool Move(const wxPoint& pt);
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// Show the image
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bool Show();
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// Hide the image
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bool Hide();
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// Implementation
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////////////////////////////////////////////////////////////////////////////
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void Init();
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// Override this if you are using a virtual image (drawing your own image)
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virtual wxRect GetImageRect(const wxPoint& pos) const;
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// Override this if you are using a virtual image (drawing your own image)
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virtual bool DoDrawImage(wxDC& dc, const wxPoint& pos) const;
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// Override this if you wish to draw the window contents to the backing bitmap
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// yourself. This can be desirable if you wish to avoid flicker by not having to
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// redraw the window itself before dragging in order to be graphic-minus-dragged-objects.
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// Instead, paint the drag image's backing bitmap to be correct, and leave the window
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// to be updated only when dragging the objects away (thus giving a smoother appearance).
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virtual bool UpdateBackingFromWindow(wxDC& windowDC, wxMemoryDC& destDC,
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const wxRect& sourceRect, const wxRect& destRect) const;
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// Erase and redraw simultaneously if possible
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virtual bool RedrawImage(const wxPoint& oldPos, const wxPoint& newPos, bool eraseOld, bool drawNew);
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protected:
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wxBitmap m_bitmap;
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wxIcon m_icon;
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wxCursor m_cursor;
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wxCursor m_oldCursor;
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// wxPoint m_hotspot;
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wxPoint m_offset; // The hostpot value passed to BeginDrag
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wxPoint m_position;
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bool m_isDirty;
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bool m_isShown;
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wxWindow* m_window;
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wxDC* m_windowDC;
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#ifdef wxHAS_NATIVE_OVERLAY
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wxOverlay m_overlay;
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wxDCOverlay* m_dcOverlay;
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#else
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// Stores the window contents while we're dragging the image around
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wxBitmap m_backingBitmap;
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wxBitmap* m_pBackingBitmap; // Pointer to existing backing bitmap
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// (pass to wxGenericDragImage as an efficiency measure)
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// A temporary bitmap for repairing/redrawing
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wxBitmap m_repairBitmap;
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#endif // !wxHAS_NATIVE_OVERLAY
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wxRect m_boundingRect;
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bool m_fullScreen;
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private:
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DECLARE_DYNAMIC_CLASS(wxGenericDragImage)
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wxDECLARE_NO_COPY_CLASS(wxGenericDragImage);
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};
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#endif
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// _WX_DRAGIMGG_H_
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