/////////////////////////////////////////////////////////////////////////////
-// Name: dragimgg.cpp
+// Name: src/generic/dragimgg.cpp
// Purpose: Generic wxDragImage implementation
// Author: Julian Smart
// Modified by:
// headers
// ----------------------------------------------------------------------------
-#ifdef __GNUG__
-#pragma implementation "dragimgg.h"
-#endif
-
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#pragma hdrstop
#endif
+#if wxUSE_DRAGIMAGE
+
#ifndef WX_PRECOMP
#include <stdio.h>
-#include "wx/setup.h"
#include "wx/window.h"
#include "wx/frame.h"
#include "wx/dcclient.h"
#include "wx/log.h"
#include "wx/intl.h"
-#ifdef __WIN16__
-#define wxUSE_IMAGE_IN_DRAGIMAGE 0
-#else
#define wxUSE_IMAGE_IN_DRAGIMAGE 1
-#endif
#if wxUSE_IMAGE_IN_DRAGIMAGE
#include "wx/image.h"
// wxGenericDragImage ctors/dtor
// ----------------------------------------------------------------------------
-wxGenericDragImage::wxGenericDragImage()
-{
- Init();
-}
-
wxGenericDragImage::~wxGenericDragImage()
{
if (m_windowDC)
void wxGenericDragImage::Init()
{
- m_isDirty = FALSE;
- m_isShown = FALSE;
+ m_isDirty = false;
+ m_isShown = false;
m_windowDC = (wxDC*) NULL;
m_window = (wxWindow*) NULL;
- m_fullScreen = FALSE;
+ m_fullScreen = false;
+ m_pBackingBitmap = (wxBitmap*) NULL;
}
// Attributes
// Operations
////////////////////////////////////////////////////////////////////////////
+// Create a drag image with a virtual image (need to override DoDrawImage, GetImageRect)
+bool wxGenericDragImage::Create(const wxCursor& cursor)
+{
+ m_cursor = cursor;
+
+ return true;
+}
+
// Create a drag image from a bitmap and optional cursor
-bool wxGenericDragImage::Create(const wxBitmap& image, const wxCursor& cursor, const wxPoint& hotspot)
+bool wxGenericDragImage::Create(const wxBitmap& image, const wxCursor& cursor)
{
// We don't have to combine the cursor explicitly since we simply show the cursor
// as we drag. This currently will only work within one window.
m_cursor = cursor;
- m_hotspot = hotspot;
m_bitmap = image;
- return TRUE ;
+ return true ;
}
// Create a drag image from an icon and optional cursor
-bool wxGenericDragImage::Create(const wxIcon& image, const wxCursor& cursor, const wxPoint& hotspot)
+bool wxGenericDragImage::Create(const wxIcon& image, const wxCursor& cursor)
{
// We don't have to combine the cursor explicitly since we simply show the cursor
// as we drag. This currently will only work within one window.
m_cursor = cursor;
- m_hotspot = hotspot;
m_icon = image;
- return TRUE ;
+ return true ;
}
// Create a drag image from a string and optional cursor
-bool wxGenericDragImage::Create(const wxString& str, const wxCursor& cursor, const wxPoint& hotspot)
+bool wxGenericDragImage::Create(const wxString& str, const wxCursor& cursor)
{
- wxFont font(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
+ wxFont font(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
- long w, h;
+ long w = 0, h = 0;
wxScreenDC dc;
dc.SetFont(font);
dc.GetTextExtent(str, & w, & h);
dc.SetFont(wxNullFont);
wxMemoryDC dc2;
- dc2.SetFont(font);
// Sometimes GetTextExtent isn't accurate enough, so make it longer
wxBitmap bitmap((int) ((w+2) * 1.5), (int) h+2);
dc2.SelectObject(bitmap);
+ dc2.SetFont(font);
dc2.SetBackground(* wxWHITE_BRUSH);
dc2.Clear();
dc2.SetBackgroundMode(wxTRANSPARENT);
dc2.SelectObject(wxNullBitmap);
-#if wxUSE_IMAGE_IN_DRAGIMAGE
+#if wxUSE_IMAGE_IN_DRAGIMAGE && (!defined(__WXMSW__) || wxUSE_WXDIB)
// Make the bitmap masked
- wxImage image(bitmap);
+ wxImage image = bitmap.ConvertToImage();
image.SetMaskColour(255, 255, 255);
- bitmap = image.ConvertToBitmap();
+ bitmap = wxBitmap(image);
#endif
- return Create(bitmap, cursor, hotspot);
+ return Create(bitmap, cursor);
}
+#if wxUSE_TREECTRL
// Create a drag image for the given tree control item
bool wxGenericDragImage::Create(const wxTreeCtrl& treeCtrl, wxTreeItemId& id)
{
wxString str = treeCtrl.GetItemText(id);
return Create(str);
}
+#endif
+#if wxUSE_LISTCTRL
// Create a drag image for the given list control item
bool wxGenericDragImage::Create(const wxListCtrl& listCtrl, long id)
{
wxString str = listCtrl.GetItemText(id);
return Create(str);
}
+#endif
// Begin drag
-bool wxGenericDragImage::BeginDrag(const wxPoint& hotspot, wxWindow* window, bool fullScreen, wxRect* rect)
+bool wxGenericDragImage::BeginDrag(const wxPoint& hotspot,
+ wxWindow* window,
+ bool fullScreen,
+ wxRect* rect)
{
wxASSERT_MSG( (window != 0), wxT("Window must not be null in BeginDrag."));
+ // The image should be offset by this amount
+ m_offset = hotspot;
m_window = window;
m_fullScreen = fullScreen;
if (rect)
m_boundingRect = * rect;
- m_isDirty = FALSE;
- m_isDirty = FALSE;
+ m_isDirty = false;
+ m_isDirty = false;
if (window)
{
// dragged.
wxSize clientSize;
- wxPoint pt(0, 0);
+ wxPoint pt;
if (!m_fullScreen)
{
clientSize = window->GetClientSize();
}
}
- if (!m_backingBitmap.Ok() || (m_backingBitmap.GetWidth() < clientSize.x || m_backingBitmap.GetHeight() < clientSize.y))
- m_backingBitmap = wxBitmap(clientSize.x, clientSize.y);
+ wxBitmap* backing = (m_pBackingBitmap ? m_pBackingBitmap : (wxBitmap*) & m_backingBitmap);
+
+ if (!backing->Ok() || (backing->GetWidth() < clientSize.x || backing->GetHeight() < clientSize.y))
+ (*backing) = wxBitmap(clientSize.x, clientSize.y);
if (!m_fullScreen)
+ {
m_windowDC = new wxClientDC(window);
+ }
else
{
m_windowDC = new wxScreenDC;
m_boundingRect.width, m_boundingRect.height);
}
- return TRUE;
+ return true;
}
// Begin drag. hotspot is the location of the drag position relative to the upper-left
int x = fullScreenRect->GetPosition().x;
int y = fullScreenRect->GetPosition().y;
-
+
wxSize sz = fullScreenRect->GetSize();
if (fullScreenRect->GetParent() && !fullScreenRect->IsKindOf(CLASSINFO(wxFrame)))
rect.x = x; rect.y = y;
rect.width = sz.x; rect.height = sz.y;
- return BeginDrag(hotspot, window, TRUE, & rect);
+ return BeginDrag(hotspot, window, true, & rect);
}
// End drag
{
if (m_window)
{
- m_window->ReleaseMouse();
+#ifdef __WXMSW__
+ // Under Windows we can be pretty sure this test will give
+ // the correct results
+ if (wxWindow::GetCapture() == m_window)
+#endif
+ m_window->ReleaseMouse();
+
if (m_cursor.Ok() && m_oldCursor.Ok())
{
m_window->SetCursor(m_oldCursor);
m_repairBitmap = wxNullBitmap;
- return TRUE;
+ return true;
}
// Move the image: call from OnMouseMove. Pt is in window client coordinates if window
// is non-NULL, or in screen coordinates if NULL.
bool wxGenericDragImage::Move(const wxPoint& pt)
{
- wxASSERT_MSG( (m_windowDC != (wxDC*) NULL), "No window DC in wxGenericDragImage::Move()" );
+ wxASSERT_MSG( (m_windowDC != (wxDC*) NULL), wxT("No window DC in wxGenericDragImage::Move()") );
+
+ wxPoint pt2(pt);
+ if (m_fullScreen)
+ pt2 = m_window->ClientToScreen(pt);
// Erase at old position, then show at the current position
wxPoint oldPos = m_position;
bool eraseOldImage = (m_isDirty && m_isShown);
-
+
if (m_isShown)
- RedrawImage(oldPos, pt, eraseOldImage, TRUE);
+ RedrawImage(oldPos - m_offset, pt2 - m_offset, eraseOldImage, true);
- m_position = pt;
+ m_position = pt2;
if (m_isShown)
- m_isDirty = TRUE;
+ m_isDirty = true;
- return TRUE;
+ return true;
}
bool wxGenericDragImage::Show()
{
- wxASSERT_MSG( (m_windowDC != (wxDC*) NULL), "No window DC in wxGenericDragImage::Show()" );
-
+ wxASSERT_MSG( (m_windowDC != (wxDC*) NULL), wxT("No window DC in wxGenericDragImage::Show()") );
+
// Show at the current position
if (!m_isShown)
// This is where we restore the backing bitmap, in case
// something has changed on the window.
+ wxBitmap* backing = (m_pBackingBitmap ? m_pBackingBitmap : (wxBitmap*) & m_backingBitmap);
wxMemoryDC memDC;
- memDC.SelectObject(m_backingBitmap);
- memDC.Blit(0, 0, m_boundingRect.width, m_boundingRect.height, m_windowDC, m_boundingRect.x, m_boundingRect.y);
+ memDC.SelectObject(* backing);
+
+ UpdateBackingFromWindow(* m_windowDC, memDC, m_boundingRect, wxRect(0, 0, m_boundingRect.width, m_boundingRect.height));
+
+ //memDC.Blit(0, 0, m_boundingRect.width, m_boundingRect.height, m_windowDC, m_boundingRect.x, m_boundingRect.y);
memDC.SelectObject(wxNullBitmap);
- RedrawImage(m_position, m_position, FALSE, TRUE);
+ RedrawImage(m_position - m_offset, m_position - m_offset, false, true);
}
- m_isShown = TRUE;
- m_isDirty = TRUE;
+ m_isShown = true;
+ m_isDirty = true;
- return TRUE;
+ return true;
+}
+
+bool wxGenericDragImage::UpdateBackingFromWindow(wxDC& windowDC, wxMemoryDC& destDC,
+ const wxRect& sourceRect, const wxRect& destRect) const
+{
+ return destDC.Blit(destRect.x, destRect.y, destRect.width, destRect.height, & windowDC,
+ sourceRect.x, sourceRect.y);
}
bool wxGenericDragImage::Hide()
{
- wxASSERT_MSG( (m_windowDC != (wxDC*) NULL), "No window DC in wxGenericDragImage::Hide()" );
+ wxASSERT_MSG( (m_windowDC != (wxDC*) NULL), wxT("No window DC in wxGenericDragImage::Hide()") );
// Repair the old position
if (m_isShown && m_isDirty)
{
- RedrawImage(m_position, m_position, TRUE, FALSE);
+ RedrawImage(m_position - m_offset, m_position - m_offset, true, false);
}
- m_isShown = FALSE;
- m_isDirty = FALSE;
+ m_isShown = false;
+ m_isDirty = false;
- return TRUE;
+ return true;
}
// More efficient: erase and redraw simultaneously if possible
bool eraseOld, bool drawNew)
{
if (!m_windowDC)
- return FALSE;
+ return false;
- if (!m_backingBitmap.Ok())
- return FALSE;
+ wxBitmap* backing = (m_pBackingBitmap ? m_pBackingBitmap : (wxBitmap*) & m_backingBitmap);
+ if (!backing->Ok())
+ return false;
wxRect oldRect(GetImageRect(oldPos));
wxRect newRect(GetImageRect(newPos));
}
wxMemoryDC memDC;
- memDC.SelectObject(m_backingBitmap);
+ memDC.SelectObject(* backing);
wxMemoryDC memDCTemp;
memDCTemp.SelectObject(m_repairBitmap);
// If drawing, draw the image onto the mem DC
if (drawNew)
{
- int x = newPos.x - fullRect.x;
- int y = newPos.y - fullRect.y;
- if (m_bitmap.Ok())
- memDCTemp.DrawBitmap(m_bitmap, x, y, (m_bitmap.GetMask() != 0));
- else if (m_icon.Ok())
- memDCTemp.DrawIcon(m_icon, x, y);
+ wxPoint pos(newPos.x - fullRect.x, newPos.y - fullRect.y) ;
+ DoDrawImage(memDCTemp, pos);
}
// Now blit to the window
memDCTemp.SelectObject(wxNullBitmap);
memDC.SelectObject(wxNullBitmap);
- return TRUE;
+ return true;
+}
+
+// Override this if you are using a virtual image (drawing your own image)
+bool wxGenericDragImage::DoDrawImage(wxDC& dc, const wxPoint& pos) const
+{
+ if (m_bitmap.Ok())
+ {
+ dc.DrawBitmap(m_bitmap, pos.x, pos.y, (m_bitmap.GetMask() != 0));
+ return true;
+ }
+ else if (m_icon.Ok())
+ {
+ dc.DrawIcon(m_icon, pos.x, pos.y);
+ return true;
+ }
+ else
+ return false;
}
+// Override this if you are using a virtual image (drawing your own image)
wxRect wxGenericDragImage::GetImageRect(const wxPoint& pos) const
{
if (m_bitmap.Ok())
}
}
+#endif // wxUSE_DRAGIMAGE
projects / wxWidgets.git / blobdiff