UMADrawControl is not to be used anymore

[wxWidgets.git] / src / generic / dragimgg.cpp

diff --git a/src/generic/dragimgg.cpp b/src/generic/dragimgg.cpp
index 747b155153e19d0811763ad32285e004b3181f32..5890d2dc9ac4be85b99885adaa87d752a69c48e2 100644 (file)
--- a/src/generic/dragimgg.cpp
+++ b/src/generic/dragimgg.cpp
@@ -17,7 +17,7 @@
 // headers
 // ----------------------------------------------------------------------------
 
 // headers
 // ----------------------------------------------------------------------------
 

-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)

 #pragma implementation "dragimgg.h"
 #endif
 
 #pragma implementation "dragimgg.h"
 #endif
 


@@ -28,6 +28,8 @@
 #pragma hdrstop
 #endif
 
 #pragma hdrstop
 #endif
 

+#if wxUSE_DRAGIMAGE
+

 #ifndef WX_PRECOMP
 #include <stdio.h>
 #include "wx/setup.h"
 #ifndef WX_PRECOMP
 #include <stdio.h>
 #include "wx/setup.h"


@@ -42,11 +44,7 @@
 #include "wx/log.h"
 #include "wx/intl.h"
 
 #include "wx/log.h"
 #include "wx/intl.h"
 

-#ifdef __WIN16__
-#define wxUSE_IMAGE_IN_DRAGIMAGE 0
-#else

 #define wxUSE_IMAGE_IN_DRAGIMAGE 1
 #define wxUSE_IMAGE_IN_DRAGIMAGE 1

-#endif

 
 #if wxUSE_IMAGE_IN_DRAGIMAGE
 #include "wx/image.h"
 
 #if wxUSE_IMAGE_IN_DRAGIMAGE
 #include "wx/image.h"


@@ -68,11 +66,6 @@ IMPLEMENT_DYNAMIC_CLASS(wxGenericDragImage, wxObject)
 // wxGenericDragImage ctors/dtor
 // ----------------------------------------------------------------------------
 
 // wxGenericDragImage ctors/dtor
 // ----------------------------------------------------------------------------
 

-wxGenericDragImage::wxGenericDragImage()
-{
-    Init();
-}
-

 wxGenericDragImage::~wxGenericDragImage()
 {
     if (m_windowDC)
 wxGenericDragImage::~wxGenericDragImage()
 {
     if (m_windowDC)


@@ -88,6 +81,7 @@ void wxGenericDragImage::Init()
     m_windowDC = (wxDC*) NULL;
     m_window = (wxWindow*) NULL;
     m_fullScreen = FALSE;
     m_windowDC = (wxDC*) NULL;
     m_window = (wxWindow*) NULL;
     m_fullScreen = FALSE;

+    m_pBackingBitmap = (wxBitmap*) NULL;

 }
 
 // Attributes
 }
 
 // Attributes


@@ -97,36 +91,42 @@ void wxGenericDragImage::Init()
 // Operations
 ////////////////////////////////////////////////////////////////////////////
 
 // 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
 // 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;
 {
     // 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 ;
 }
 
 // Create a drag image from an icon and optional cursor
     m_bitmap = image;
 
     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;
 {
     // 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 ;
 }
 
 // Create a drag image from a string and optional cursor
     m_icon = image;
 
     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;
     wxScreenDC dc;
 
     long w, h;
     wxScreenDC dc;


@@ -135,12 +135,12 @@ bool wxGenericDragImage::Create(const wxString& str, const wxCursor& cursor, con
     dc.SetFont(wxNullFont);
 
     wxMemoryDC dc2;
     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);
 
 
     // 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.SetBackground(* wxWHITE_BRUSH);
     dc2.Clear();
     dc2.SetBackgroundMode(wxTRANSPARENT);


@@ -160,33 +160,42 @@ bool wxGenericDragImage::Create(const wxString& str, const wxCursor& cursor, con
 
 #if wxUSE_IMAGE_IN_DRAGIMAGE
     // Make the bitmap masked
 
 #if wxUSE_IMAGE_IN_DRAGIMAGE
     // Make the bitmap masked

-    wxImage image(bitmap);
+    wxImage image = bitmap.ConvertToImage();

     image.SetMaskColour(255, 255, 255);
     image.SetMaskColour(255, 255, 255);

-    bitmap = image.ConvertToBitmap();
+    bitmap = wxBitmap(image);

 #endif
 
 #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);
 }
 // 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);
 }
 // 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
 
 // 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."));
 
 {
     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;
 
     m_window = window;
     m_fullScreen = fullScreen;
 


@@ -235,11 +244,15 @@ bool wxGenericDragImage::BeginDrag(const wxPoint& hotspot, wxWindow* window, boo
         }
     }
 
         }
     }
 

-    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)
 
     if (!m_fullScreen)

+    {

         m_windowDC = new wxClientDC(window);
         m_windowDC = new wxClientDC(window);

+    }

     else
     {
         m_windowDC = new wxScreenDC;
     else
     {
         m_windowDC = new wxScreenDC;


@@ -282,7 +295,13 @@ bool wxGenericDragImage::EndDrag()
 {
     if (m_window)
     {
 {
     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);
         if (m_cursor.Ok() && m_oldCursor.Ok())
         {
             m_window->SetCursor(m_oldCursor);


@@ -305,7 +324,11 @@ bool wxGenericDragImage::EndDrag()
 // is non-NULL, or in screen coordinates if NULL.
 bool wxGenericDragImage::Move(const wxPoint& pt)
 {
 // 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;
 
     // Erase at old position, then show at the current position
     wxPoint oldPos = m_position;


@@ -313,9 +336,9 @@ bool wxGenericDragImage::Move(const wxPoint& pt)
     bool eraseOldImage = (m_isDirty && m_isShown);
     
     if (m_isShown)
     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;
 
     if (m_isShown)
         m_isDirty = TRUE;


@@ -325,7 +348,7 @@ bool wxGenericDragImage::Move(const wxPoint& pt)
 
 bool wxGenericDragImage::Show()
 {
 
 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
 
     
     // Show at the current position
 


@@ -334,12 +357,16 @@ bool wxGenericDragImage::Show()
         // This is where we restore the backing bitmap, in case
         // something has changed on the window.
 
         // 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;
         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);
 
         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_isShown = TRUE;


@@ -348,15 +375,22 @@ bool wxGenericDragImage::Show()
     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()
 {
 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)
     {
 
     // 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_isShown = FALSE;


@@ -372,7 +406,8 @@ bool wxGenericDragImage::RedrawImage(const wxPoint& oldPos, const wxPoint& newPo
     if (!m_windowDC)
         return FALSE;
 
     if (!m_windowDC)
         return FALSE;
 

-    if (!m_backingBitmap.Ok())
+    wxBitmap* backing = (m_pBackingBitmap ? m_pBackingBitmap : (wxBitmap*) & m_backingBitmap);
+    if (!backing->Ok())

         return FALSE;
 
     wxRect oldRect(GetImageRect(oldPos));
         return FALSE;
 
     wxRect oldRect(GetImageRect(oldPos));


@@ -410,7 +445,7 @@ bool wxGenericDragImage::RedrawImage(const wxPoint& oldPos, const wxPoint& newPo
     }
 
     wxMemoryDC memDC;
     }
 
     wxMemoryDC memDC;

-    memDC.SelectObject(m_backingBitmap);
+    memDC.SelectObject(* backing);

 
     wxMemoryDC memDCTemp;
     memDCTemp.SelectObject(m_repairBitmap);
 
     wxMemoryDC memDCTemp;
     memDCTemp.SelectObject(m_repairBitmap);


@@ -426,12 +461,8 @@ bool wxGenericDragImage::RedrawImage(const wxPoint& oldPos, const wxPoint& newPo
     // If drawing, draw the image onto the mem DC
     if (drawNew)
     {
     // 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
     }
 
     // Now blit to the window


@@ -444,6 +475,24 @@ bool wxGenericDragImage::RedrawImage(const wxPoint& oldPos, const wxPoint& newPo
     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())
 wxRect wxGenericDragImage::GetImageRect(const wxPoint& pos) const
 {
     if (m_bitmap.Ok())


@@ -460,3 +509,4 @@ wxRect wxGenericDragImage::GetImageRect(const wxPoint& pos) const
     }
 }
 
     }
 }
 

+#endif // wxUSE_DRAGIMAGE