Fix drawing of bitmaps with masks in mirrored wxDC.

[wxWidgets.git] / src / msw / dragimag.cpp

diff --git a/src/msw/dragimag.cpp b/src/msw/dragimag.cpp
index b56c1ef18ad5520811fe2c29692d8dddc1ddfd8f..067d67608df63d181fedcc7ef80f9412582861e5 100644 (file)
--- a/src/msw/dragimag.cpp
+++ b/src/msw/dragimag.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        dragimag.cpp
+// Name:        src/msw/dragimag.cpp
 // Purpose:     wxDragImage
 // Author:      Julian Smart
 // Modified by:
@@ -17,36 +17,30 @@
 // headers
 // ----------------------------------------------------------------------------
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "dragimag.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
-#pragma hdrstop
+    #pragma hdrstop
 #endif
 
 #if wxUSE_DRAGIMAGE
 
-#if defined(__WIN95__)
-
 #ifndef WX_PRECOMP
-#include <stdio.h>
-#include "wx/setup.h"
-#include "wx/window.h"
-#include "wx/dcclient.h"
-#include "wx/dcscreen.h"
-#include "wx/dcmemory.h"
-#include "wx/settings.h"
+    #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"
+    #include <stdio.h>
+    #include "wx/window.h"
+    #include "wx/dcclient.h"
+    #include "wx/dcscreen.h"
+    #include "wx/dcmemory.h"
+    #include "wx/settings.h"
+    #include "wx/intl.h"
+    #include "wx/log.h"
+    #include "wx/frame.h"
+    #include "wx/image.h"
 #endif
 
 #include "wx/msw/private.h"
-#include "wx/log.h"
-#include "wx/intl.h"
-#include "wx/frame.h"
-#include "wx/image.h"
 
 #include "wx/msw/dragimag.h"
 #include "wx/msw/private.h"
@@ -55,10 +49,6 @@
 #include "wx/msw/wince/missing.h"
 #endif // __WXWINCE__
 
-#if defined(__WIN95__) && !(defined(__GNUWIN32_OLD__) && !defined(__CYGWIN10__))
-#include <commctrl.h>
-#endif
-
 // Wine doesn't have this yet
 #ifndef ListView_CreateDragImage
 #define ListView_CreateDragImage(hwnd, i, lpptUpLeft) \
@@ -102,10 +92,48 @@ void wxDragImage::Init()
 #if !wxUSE_SIMPLER_DRAGIMAGE
     m_hCursorImageList = 0;
 #endif
-    m_window = (wxWindow*) NULL;
+    m_window = NULL;
     m_fullScreen = false;
 }
 
+#if WXWIN_COMPATIBILITY_2_8
+wxDragImage::wxDragImage(const wxBitmap& image, const wxCursor& cursor, const wxPoint& WXUNUSED(cursorHotspot))
+{
+    Init();
+
+    Create(image, cursor);
+}
+
+wxDragImage::wxDragImage(const wxIcon& image, const wxCursor& cursor, const wxPoint& WXUNUSED(cursorHotspot))
+{
+    Init();
+
+    Create(image, cursor);
+}
+
+wxDragImage::wxDragImage(const wxString& str, const wxCursor& cursor, const wxPoint& WXUNUSED(cursorHotspot))
+{
+    Init();
+
+    Create(str, cursor);
+}
+
+bool wxDragImage::Create(const wxBitmap& image, const wxCursor& cursor, const wxPoint& WXUNUSED(cursorHotspot))
+{
+    return Create(image, cursor);
+}
+
+bool wxDragImage::Create(const wxIcon& image, const wxCursor& cursor, const wxPoint& WXUNUSED(cursorHotspot))
+{
+    return Create(image, cursor);
+}
+
+bool wxDragImage::Create(const wxString& str, const wxCursor& cursor, const wxPoint& WXUNUSED(cursorHotspot))
+{
+    return Create(str, cursor);
+}
+#endif // WXWIN_COMPATIBILITY_2_8
+
 // Attributes
 ////////////////////////////////////////////////////////////////////////////
 
@@ -192,9 +220,8 @@ bool wxDragImage::Create(const wxIcon& image, const wxCursor& cursor)
     else
         flags = ILC_COLOR32;
 #endif
-    bool mask = true;
-    if ( mask )
-        flags |= ILC_MASK;
+
+    flags |= ILC_MASK;
 
     m_hImageList = (WXHIMAGELIST) ImageList_Create(image.GetWidth(), image.GetHeight(), flags, 1, 1);
 
@@ -216,7 +243,7 @@ bool wxDragImage::Create(const wxString& str, const wxCursor& cursor)
 {
     wxFont font(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
 
-    long w, h;
+    wxCoord w = 0, h = 0;
     wxScreenDC dc;
     dc.SetFont(font);
     dc.GetTextExtent(str, & w, & h);
@@ -229,7 +256,7 @@ bool wxDragImage::Create(const wxString& str, const wxCursor& cursor)
 
     dc2.SetBackground(* wxWHITE_BRUSH);
     dc2.Clear();
-    dc2.SetBackgroundMode(wxTRANSPARENT);
+    dc2.SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
     dc2.SetTextForeground(* wxLIGHT_GREY);
     dc2.DrawText(str, 0, 0);
     dc2.DrawText(str, 1, 0);
@@ -243,10 +270,14 @@ bool wxDragImage::Create(const wxString& str, const wxCursor& cursor)
 
     dc2.SelectObject(wxNullBitmap);
 
+#if wxUSE_WXDIB
     // Make the bitmap masked
     wxImage image = bitmap.ConvertToImage();
     image.SetMaskColour(255, 255, 255);
     return Create(wxBitmap(image), cursor);
+#else
+    return false;
+#endif
 }
 
 #if wxUSE_TREECTRL
@@ -257,7 +288,13 @@ bool wxDragImage::Create(const wxTreeCtrl& treeCtrl, wxTreeItemId& id)
         ImageList_Destroy(GetHimageList());
     m_hImageList = (WXHIMAGELIST)
         TreeView_CreateDragImage(GetHwndOf(&treeCtrl), (HTREEITEM) id.m_pItem);
-    return m_hImageList != 0;
+    if ( !m_hImageList )
+    {
+        // fall back on just the item text if there is no image
+        return Create(treeCtrl.GetItemText(id));
+    }
+
+    return true;
 }
 #endif
 
@@ -268,8 +305,17 @@ bool wxDragImage::Create(const wxListCtrl& listCtrl, long id)
     if ( m_hImageList )
         ImageList_Destroy(GetHimageList());
     POINT pt;
-    pt.x = 0; pt.y = 0;
-    m_hImageList = (WXHIMAGELIST) ListView_CreateDragImage((HWND) listCtrl.GetHWND(), id, & pt);
+    pt.x =
+    pt.y = 0;
+    m_hImageList = (WXHIMAGELIST)
+        ListView_CreateDragImage(GetHwndOf(&listCtrl), id, &pt);
+
+    if ( !m_hImageList )
+    {
+        // as for wxTreeCtrl, fall back on dragging just the item text
+        return Create(listCtrl.GetItemText(id));
+    }
+
     return true;
 }
 #endif
@@ -288,12 +334,12 @@ bool wxDragImage::BeginDrag(const wxPoint& hotspot, wxWindow* window, bool fullS
 
     if (!ret)
     {
-        wxFAIL_MSG( _T("BeginDrag failed.") );
+        wxFAIL_MSG( wxT("BeginDrag failed.") );
 
         return false;
     }
 
-    if (m_cursor.Ok())
+    if (m_cursor.IsOk())
     {
 #if wxUSE_SIMPLER_DRAGIMAGE
         m_oldCursor = window->GetCursor();
@@ -301,9 +347,14 @@ bool wxDragImage::BeginDrag(const wxPoint& hotspot, wxWindow* window, bool fullS
 #else
         if (!m_hCursorImageList)
         {
+#ifndef SM_CXCURSOR
+            // Smartphone may not have these metric symbol
+            int cxCursor = 16;
+            int cyCursor = 16;
+#else
             int cxCursor = ::GetSystemMetrics(SM_CXCURSOR);
             int cyCursor = ::GetSystemMetrics(SM_CYCURSOR);
-
+#endif
             m_hCursorImageList = (WXHIMAGELIST) ImageList_Create(cxCursor, cyCursor, ILC_MASK, 1, 1);
         }
 
@@ -339,7 +390,7 @@ bool wxDragImage::BeginDrag(const wxPoint& hotspot, wxWindow* window, bool fullS
     }
 
 #if !wxUSE_SIMPLER_DRAGIMAGE
-    if (m_cursor.Ok())
+    if (m_cursor.IsOk())
         ::ShowCursor(FALSE);
 #endif
 
@@ -362,7 +413,7 @@ bool wxDragImage::BeginDrag(const wxPoint& hotspot, wxWindow* window, wxWindow*
 
     wxSize sz = fullScreenRect->GetSize();
 
-    if (fullScreenRect->GetParent() && !fullScreenRect->IsKindOf(CLASSINFO(wxFrame)))
+    if (fullScreenRect->GetParent() && !wxDynamicCast(fullScreenRect, wxFrame))
         fullScreenRect->GetParent()->ClientToScreen(& x, & y);
 
     rect.x = x; rect.y = y;
@@ -384,13 +435,13 @@ bool wxDragImage::EndDrag()
     }
 
 #if wxUSE_SIMPLER_DRAGIMAGE
-    if (m_cursor.Ok() && m_oldCursor.Ok())
+    if (m_cursor.IsOk() && m_oldCursor.IsOk())
         m_window->SetCursor(m_oldCursor);
 #else
     ::ShowCursor(TRUE);
 #endif
 
-    m_window = (wxWindow*) NULL;
+    m_window = NULL;
 
     return true;
 }
@@ -457,7 +508,4 @@ bool wxDragImage::Hide()
     return ret;
 }
 
-#endif
-    // __WIN95__
-
 #endif // wxUSE_DRAGIMAGE