fix memory leak (coverity checker CID 53)

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

diff --git a/src/msw/dragimag.cpp b/src/msw/dragimag.cpp
index 7bb4c4def18ceb84482684bc6748bf2702892018..9249d8c35c19b873e0c5a8ad2a2a03a83d35072e 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:
@@ -17,10 +17,6 @@
 // headers
 // ----------------------------------------------------------------------------
 
-#ifdef __GNUG__
-#pragma implementation "dragimag.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -30,11 +26,8 @@
 
 #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"
@@ -51,9 +44,12 @@
 #include "wx/msw/dragimag.h"
 #include "wx/msw/private.h"
 
-#if defined(__WIN95__) && !(defined(__GNUWIN32_OLD__) && !defined(__CYGWIN10__))
-#include <commctrl.h>
-#endif
+#ifdef __WXWINCE__  // for SM_CXCURSOR and SM_CYCURSOR
+#include "wx/msw/wince/missing.h"
+#endif // __WXWINCE__
+
+// include <commctrl.h> "properly"
+#include "wx/msw/wrapcctl.h"
 
 // Wine doesn't have this yet
 #ifndef ListView_CreateDragImage
@@ -99,7 +95,7 @@ void wxDragImage::Init()
     m_hCursorImageList = 0;
 #endif
     m_window = (wxWindow*) NULL;
-    m_fullScreen = FALSE;
+    m_fullScreen = false;
 }
 
 // Attributes
@@ -116,7 +112,10 @@ bool wxDragImage::Create(const wxBitmap& image, const wxCursor& cursor)
         ImageList_Destroy(GetHimageList());
     m_hImageList = 0;
 
-    UINT flags = 0 ;
+#ifdef __WXWINCE__
+    UINT flags = ILC_COLOR;
+#else
+    UINT flags wxDUMMY_INITIALIZE(0) ;
     if (image.GetDepth() <= 4)
         flags = ILC_COLOR4;
     else if (image.GetDepth() <= 8)
@@ -127,6 +126,7 @@ bool wxDragImage::Create(const wxBitmap& image, const wxCursor& cursor)
         flags = ILC_COLOR24;
     else
         flags = ILC_COLOR32;
+#endif
 
     bool mask = (image.GetMask() != 0);
 
@@ -169,7 +169,10 @@ bool wxDragImage::Create(const wxIcon& image, const wxCursor& cursor)
         ImageList_Destroy(GetHimageList());
     m_hImageList = 0;
 
-    UINT flags = 0 ;
+#ifdef __WXWINCE__
+    UINT flags = ILC_COLOR;
+#else
+    UINT flags wxDUMMY_INITIALIZE(0) ;
     if (image.GetDepth() <= 4)
         flags = ILC_COLOR4;
     else if (image.GetDepth() <= 8)
@@ -180,7 +183,8 @@ bool wxDragImage::Create(const wxIcon& image, const wxCursor& cursor)
         flags = ILC_COLOR24;
     else
         flags = ILC_COLOR32;
-    bool mask = TRUE;
+#endif
+    bool mask = true;
     if ( mask )
         flags |= ILC_MASK;
 
@@ -204,7 +208,7 @@ bool wxDragImage::Create(const wxString& str, const wxCursor& cursor)
 {
     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);
@@ -231,10 +235,14 @@ 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
@@ -243,8 +251,9 @@ bool wxDragImage::Create(const wxTreeCtrl& treeCtrl, wxTreeItemId& id)
 {
     if ( m_hImageList )
         ImageList_Destroy(GetHimageList());
-    m_hImageList = (WXHIMAGELIST) TreeView_CreateDragImage((HWND) treeCtrl.GetHWND(), (HTREEITEM) (WXHTREEITEM) id);
-    return TRUE;
+    m_hImageList = (WXHIMAGELIST)
+        TreeView_CreateDragImage(GetHwndOf(&treeCtrl), (HTREEITEM) id.m_pItem);
+    return m_hImageList != 0;
 }
 #endif
 
@@ -257,7 +266,7 @@ bool wxDragImage::Create(const wxListCtrl& listCtrl, long id)
     POINT pt;
     pt.x = 0; pt.y = 0;
     m_hImageList = (WXHIMAGELIST) ListView_CreateDragImage((HWND) listCtrl.GetHWND(), id, & pt);
-    return TRUE;
+    return true;
 }
 #endif
 
@@ -277,20 +286,20 @@ bool wxDragImage::BeginDrag(const wxPoint& hotspot, wxWindow* window, bool fullS
     {
         wxFAIL_MSG( _T("BeginDrag failed.") );
 
-        return FALSE;
+        return false;
     }
 
     if (m_cursor.Ok())
     {
 #if wxUSE_SIMPLER_DRAGIMAGE
-           m_oldCursor = window->GetCursor();
-           window->SetCursor(m_cursor);
+        m_oldCursor = window->GetCursor();
+        window->SetCursor(m_cursor);
 #else
         if (!m_hCursorImageList)
-        {           
-            int cxCursor = GetSystemMetrics(SM_CXCURSOR); 
-            int cyCursor = GetSystemMetrics(SM_CYCURSOR); 
- 
+        {
+            int cxCursor = ::GetSystemMetrics(SM_CXCURSOR);
+            int cyCursor = ::GetSystemMetrics(SM_CYCURSOR);
+
             m_hCursorImageList = (WXHIMAGELIST) ImageList_Create(cxCursor, cyCursor, ILC_MASK, 1, 1);
         }
 
@@ -334,7 +343,7 @@ bool wxDragImage::BeginDrag(const wxPoint& hotspot, wxWindow* window, bool fullS
 
     ::SetCapture(GetHwndOf(window));
 
-    return TRUE;
+    return true;
 }
 
 // Begin drag. hotspot is the location of the drag position relative to the upper-left
@@ -346,7 +355,7 @@ bool wxDragImage::BeginDrag(const wxPoint& hotspot, wxWindow* window, wxWindow*
 
     int x = fullScreenRect->GetPosition().x;
     int y = fullScreenRect->GetPosition().y;
-    
+
     wxSize sz = fullScreenRect->GetSize();
 
     if (fullScreenRect->GetParent() && !fullScreenRect->IsKindOf(CLASSINFO(wxFrame)))
@@ -355,7 +364,7 @@ bool wxDragImage::BeginDrag(const wxPoint& hotspot, wxWindow* window, wxWindow*
     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
@@ -372,14 +381,14 @@ bool wxDragImage::EndDrag()
 
 #if wxUSE_SIMPLER_DRAGIMAGE
     if (m_cursor.Ok() && m_oldCursor.Ok())
-           m_window->SetCursor(m_oldCursor);
+        m_window->SetCursor(m_oldCursor);
 #else
     ::ShowCursor(TRUE);
 #endif
 
     m_window = (wxWindow*) NULL;
 
-    return TRUE;
+    return true;
 }
 
 // Move the image: call from OnMouseMove. Pt is in window client coordinates if window
@@ -444,7 +453,4 @@ bool wxDragImage::Hide()
     return ret;
 }
 
-#endif
-    // __WIN95__
-
 #endif // wxUSE_DRAGIMAGE