fix for potention crash when conversion fails

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

diff --git a/src/msw/listctrl.cpp b/src/msw/listctrl.cpp
index 0cec7d35e423ee9b6f79efcee2dbe710a3216c2a..6e8eba40b58b828e6f66d5933635dc8eafd112b4 100644 (file)
--- a/src/msw/listctrl.cpp
+++ b/src/msw/listctrl.cpp
@@ -2,7 +2,7 @@
 // Name:        src/msw/listctrl.cpp
 // Purpose:     wxListCtrl
 // Author:      Julian Smart
 // Name:        src/msw/listctrl.cpp
 // Purpose:     wxListCtrl
 // Author:      Julian Smart

-// Modified by:
+// Modified by: Agron Selimaj

 // Created:     04/01/98
 // RCS-ID:      $Id$
 // Copyright:   (c) Julian Smart
 // Created:     04/01/98
 // RCS-ID:      $Id$
 // Copyright:   (c) Julian Smart


@@ -31,12 +31,12 @@
     #include "wx/intl.h"
     #include "wx/log.h"
     #include "wx/settings.h"
     #include "wx/intl.h"
     #include "wx/log.h"
     #include "wx/settings.h"

+    #include "wx/dcclient.h"
+    #include "wx/textctrl.h"

 #endif
 
 #endif
 

-#include "wx/textctrl.h"

 #include "wx/imaglist.h"
 #include "wx/listctrl.h"
 #include "wx/imaglist.h"
 #include "wx/listctrl.h"

-#include "wx/dcclient.h"

 
 #include "wx/msw/private.h"
 
 
 #include "wx/msw/private.h"
 


@@ -761,6 +761,10 @@ bool wxListCtrl::GetItem(wxListItem& info) const
 // Sets information about the item
 bool wxListCtrl::SetItem(wxListItem& info)
 {
 // Sets information about the item
 bool wxListCtrl::SetItem(wxListItem& info)
 {

+    const long id = info.GetId();
+    wxCHECK_MSG( id >= 0 && id < GetItemCount(), false,
+                 _T("invalid item index in SetItem") );
+

     LV_ITEM item;
     wxConvertToMSWListItem(this, info, item);
 
     LV_ITEM item;
     wxConvertToMSWListItem(this, info, item);
 


@@ -773,7 +777,7 @@ bool wxListCtrl::SetItem(wxListItem& info)
     {
         // get internal item data
         // perhaps a cache here ?
     {
         // get internal item data
         // perhaps a cache here ?

-        wxListItemInternalData *data = wxGetInternalData(this, info.m_itemId);
+        wxListItemInternalData *data = wxGetInternalData(this, id);

 
         if (! data)
         {
 
         if (! data)
         {


@@ -918,12 +922,19 @@ bool wxListCtrl::SetItemState(long item, long state, long stateMask)
 
 // Sets the item image
 bool wxListCtrl::SetItemImage(long item, int image, int WXUNUSED(selImage))
 
 // Sets the item image
 bool wxListCtrl::SetItemImage(long item, int image, int WXUNUSED(selImage))

+{
+    return SetItemColumnImage(item, 0, image);
+}
+
+// Sets the item image
+bool wxListCtrl::SetItemColumnImage(long item, long column, int image)

 {
     wxListItem info;
 
     info.m_mask = wxLIST_MASK_IMAGE;
     info.m_image = image;
     info.m_itemId = item;
 {
     wxListItem info;
 
     info.m_mask = wxLIST_MASK_IMAGE;
     info.m_image = image;
     info.m_itemId = item;

+    info.m_col = column;

 
     return SetItem(info);
 }
 
     return SetItem(info);
 }


@@ -999,6 +1010,24 @@ wxRect wxListCtrl::GetViewRect() const
 
 // Gets the item rectangle
 bool wxListCtrl::GetItemRect(long item, wxRect& rect, int code) const
 
 // Gets the item rectangle
 bool wxListCtrl::GetItemRect(long item, wxRect& rect, int code) const

+{
+    return GetSubItemRect( item, wxLIST_GETSUBITEMRECT_WHOLEITEM, rect, code) ;
+}
+
+/*!
+ * Retrieve coordinates and size of a specified subitem of a listview control.
+ * This function only works if the listview control is in the report mode.
+ *
+ * @param item : Item number
+ * @param subItem : Subitem or column number, use -1 for the whole row including
+ *                  all columns or subitems
+ * @param rect : A pointer to an allocated wxRect object
+ * @param code : Specify the part of the subitem coordinates you need. Choices are
+ *               wxLIST_RECT_BOUNDS, wxLIST_RECT_ICON, wxLIST_RECT_LABEL
+ *
+ * @return bool  : True if successful.
+ */
+bool wxListCtrl::GetSubItemRect(long item, long subItem, wxRect& rect, int code) const

 {
     RECT rectWin;
 
 {
     RECT rectWin;
 


@@ -1011,12 +1040,24 @@ bool wxListCtrl::GetItemRect(long item, wxRect& rect, int code) const
         codeWin = LVIR_LABEL;
     else
     {
         codeWin = LVIR_LABEL;
     else
     {

-        wxFAIL_MSG( _T("incorrect code in GetItemRect()") );
-
+        wxFAIL_MSG( _T("incorrect code in GetItemRect() / GetSubItemRect()") );

         codeWin = LVIR_BOUNDS;
     }
 
         codeWin = LVIR_BOUNDS;
     }
 

-    bool success = ListView_GetItemRect(GetHwnd(), (int) item, &rectWin, codeWin) != 0;
+    bool success;
+    if( subItem == wxLIST_GETSUBITEMRECT_WHOLEITEM)
+    {
+      success = ListView_GetItemRect(GetHwnd(), (int) item, &rectWin, codeWin) != 0;
+    }
+    else if( subItem >= 0)
+    {
+      success = ListView_GetSubItemRect( GetHwnd(), (int) item, (int) subItem, codeWin, &rectWin) != 0;
+    }
+    else
+    {
+      wxFAIL_MSG( _T("incorrect subItem number in GetSubItemRect()") );
+      return false;
+    }

 
     rect.x = rectWin.left;
     rect.y = rectWin.top;
 
     rect.x = rectWin.left;
     rect.y = rectWin.top;


@@ -1026,6 +1067,9 @@ bool wxListCtrl::GetItemRect(long item, wxRect& rect, int code) const
     return success;
 }
 
     return success;
 }
 

+
+
+

 // Gets the item position
 bool wxListCtrl::GetItemPosition(long item, wxPoint& pos) const
 {
 // Gets the item position
 bool wxListCtrl::GetItemPosition(long item, wxPoint& pos) const
 {


@@ -1056,11 +1100,15 @@ wxSize wxListCtrl::GetItemSpacing() const
     return wxSize(LOWORD(spacing), HIWORD(spacing));
 }
 
     return wxSize(LOWORD(spacing), HIWORD(spacing));
 }
 

+#if WXWIN_COMPATIBILITY_2_6
+

 int wxListCtrl::GetItemSpacing(bool isSmall) const
 {
     return ListView_GetItemSpacing(GetHwnd(), (BOOL) isSmall);
 }
 
 int wxListCtrl::GetItemSpacing(bool isSmall) const
 {
     return ListView_GetItemSpacing(GetHwnd(), (BOOL) isSmall);
 }
 

+#endif // WXWIN_COMPATIBILITY_2_6
+

 void wxListCtrl::SetItemTextColour( long item, const wxColour &col )
 {
     wxListItem info;
 void wxListCtrl::SetItemTextColour( long item, const wxColour &col )
 {
     wxListItem info;


@@ -1463,13 +1511,25 @@ long wxListCtrl::FindItem(long start, const wxPoint& pt, int direction)
 
 // Determines which item (if any) is at the specified point,
 // giving details in 'flags' (see wxLIST_HITTEST_... flags above)
 
 // Determines which item (if any) is at the specified point,
 // giving details in 'flags' (see wxLIST_HITTEST_... flags above)

-long wxListCtrl::HitTest(const wxPoint& point, int& flags)
+long
+wxListCtrl::HitTest(const wxPoint& point, int& flags, long *ptrSubItem) const

 {
     LV_HITTESTINFO hitTestInfo;
     hitTestInfo.pt.x = (int) point.x;
     hitTestInfo.pt.y = (int) point.y;
 
 {
     LV_HITTESTINFO hitTestInfo;
     hitTestInfo.pt.x = (int) point.x;
     hitTestInfo.pt.y = (int) point.y;
 

-    ListView_HitTest(GetHwnd(), & hitTestInfo);
+    long item;
+#ifdef LVM_SUBITEMHITTEST
+    if ( ptrSubItem && wxApp::GetComCtl32Version() >= 470 )
+    {
+        item = ListView_SubItemHitTest(GetHwnd(), &hitTestInfo);
+        *ptrSubItem = hitTestInfo.iSubItem;
+    }
+    else
+#endif // LVM_SUBITEMHITTEST
+    {
+        item = ListView_HitTest(GetHwnd(), &hitTestInfo);
+    }

 
     flags = 0;
 
 
     flags = 0;
 


@@ -1504,9 +1564,10 @@ long wxListCtrl::HitTest(const wxPoint& point, int& flags)
             flags |= wxLIST_HITTEST_ONITEMSTATEICON;
     }
 
             flags |= wxLIST_HITTEST_ONITEMSTATEICON;
     }
 

-    return (long) hitTestInfo.iItem;
+    return item;

 }
 
 }
 

+

 // Inserts an item, returning the index of the new item if successful,
 // -1 otherwise.
 long wxListCtrl::InsertItem(const wxListItem& info)
 // Inserts an item, returning the index of the new item if successful,
 // -1 otherwise.
 long wxListCtrl::InsertItem(const wxListItem& info)


@@ -2409,25 +2470,37 @@ static void HandleSubItemPrepaint(LPNMLVCUSTOMDRAW pLVCD, HFONT hfont)
     it.cchTextMax = WXSIZEOF(text);
     ListView_GetItem(hwndList, &it);
 
     it.cchTextMax = WXSIZEOF(text);
     ListView_GetItem(hwndList, &it);
 

-    if ( it.iImage != -1 )
+    HIMAGELIST himl = ListView_GetImageList(hwndList, LVSIL_SMALL);
+    if ( himl && ImageList_GetImageCount(himl) )

     {
     {

-        HIMAGELIST himl = ListView_GetImageList(hwndList, LVSIL_SMALL);
-
-        ImageList_Draw(himl, it.iImage, hdc, rc.left, rc.top,
-                       nmcd.uItemState & CDIS_SELECTED ? ILD_SELECTED
-                                                       : ILD_TRANSPARENT);
+        if ( it.iImage != -1 )
+        {
+            ImageList_Draw(himl, it.iImage, hdc, rc.left, rc.top,
+                           nmcd.uItemState & CDIS_SELECTED ? ILD_SELECTED
+                                                           : ILD_TRANSPARENT);
+        }

 
 

-        int wImage, hImage;
-        ImageList_GetIconSize(himl, &wImage, &hImage);
+        // notice that even if this item doesn't have any image, the list
+        // control still leaves space for the image in the first column if the
+        // image list is not empty (presumably so that items with and without
+        // images align?)
+        if ( it.iImage != -1 || it.iSubItem == 0 )
+        {
+            int wImage, hImage;
+            ImageList_GetIconSize(himl, &wImage, &hImage);

 
 

-        rc.left += wImage + 2;
+            rc.left += wImage + 2;
+        }

     }
 
     ::SetBkMode(hdc, TRANSPARENT);
 
     // TODO: support for centred/right aligned columns
     ::DrawText(hdc, text, -1, &rc,
     }
 
     ::SetBkMode(hdc, TRANSPARENT);
 
     // TODO: support for centred/right aligned columns
     ::DrawText(hdc, text, -1, &rc,

-               DT_WORD_ELLIPSIS | DT_NOPREFIX | DT_SINGLELINE | DT_VCENTER);
+#ifndef __WXWINCE__
+               DT_WORD_ELLIPSIS |
+#endif // __WXWINCE__
+               DT_NOPREFIX | DT_SINGLELINE | DT_VCENTER);

 }
 
 static void HandleItemPostpaint(NMCUSTOMDRAW nmcd)
 }
 
 static void HandleItemPostpaint(NMCUSTOMDRAW nmcd)


@@ -2446,7 +2519,8 @@ static void HandleItemPaint(LPNMLVCUSTOMDRAW pLVCD, HFONT hfont)
 {
     NMCUSTOMDRAW& nmcd = pLVCD->nmcd; // just a shortcut
 
 {
     NMCUSTOMDRAW& nmcd = pLVCD->nmcd; // just a shortcut
 

-    HWND hwndList = nmcd.hdr.hwndFrom;
+    const HWND hwndList = nmcd.hdr.hwndFrom;
+    const int item = nmcd.dwItemSpec;

 
     // unfortunately we can't trust CDIS_SELECTED, it is often set even when
     // the item is not at all selected for some reason (comctl32 6), but we
 
     // unfortunately we can't trust CDIS_SELECTED, it is often set even when
     // the item is not at all selected for some reason (comctl32 6), but we


@@ -2462,13 +2536,24 @@ static void HandleItemPaint(LPNMLVCUSTOMDRAW pLVCD, HFONT hfont)
             break;
         }
 
             break;
         }
 

-        if ( (DWORD)i == nmcd.dwItemSpec )
+        if ( i == item )

         {
             nmcd.uItemState |= CDIS_SELECTED;
             break;
         }
     }
 
         {
             nmcd.uItemState |= CDIS_SELECTED;
             break;
         }
     }
 

+    // same thing for CDIS_FOCUS (except simpler as there is only one of them)
+    if ( ::GetFocus() == hwndList &&
+            ListView_GetNextItem(hwndList, (WPARAM)-1, LVNI_FOCUSED) == item )
+    {
+        nmcd.uItemState |= CDIS_FOCUS;
+    }
+    else
+    {
+        nmcd.uItemState &= ~CDIS_FOCUS;
+    }
+

     if ( nmcd.uItemState & CDIS_SELECTED )
     {
         int syscolFg, syscolBg;
     if ( nmcd.uItemState & CDIS_SELECTED )
     {
         int syscolFg, syscolBg;


@@ -2521,12 +2606,12 @@ static WXLPARAM HandleItemPrepaint(wxListCtrl *listctrl,
 
 
     // set the colours to use for text drawing
 
 
     // set the colours to use for text drawing

-    pLVCD->clrText = wxColourToRGB(attr->HasTextColour()
-                                    ? attr->GetTextColour()
-                                    : listctrl->GetTextColour());
-    pLVCD->clrTextBk = wxColourToRGB(attr->HasBackgroundColour()
-                                        ? attr->GetBackgroundColour()
-                                        : listctrl->GetBackgroundColour());
+    pLVCD->clrText = attr->HasTextColour()
+                     ? wxColourToRGB(attr->GetTextColour())
+                     : wxColourToRGB(listctrl->GetTextColour());
+    pLVCD->clrTextBk = attr->HasBackgroundColour()
+                       ? wxColourToRGB(attr->GetBackgroundColour())
+                       : wxColourToRGB(listctrl->GetBackgroundColour());

 
     // select the font if non default one is specified
     if ( attr->HasFont() )
 
     // select the font if non default one is specified
     if ( attr->HasFont() )


@@ -2585,6 +2670,15 @@ WXLPARAM wxListCtrl::OnCustomDraw(WXLPARAM lParam)
 // Necessary for drawing hrules and vrules, if specified
 void wxListCtrl::OnPaint(wxPaintEvent& event)
 {
 // Necessary for drawing hrules and vrules, if specified
 void wxListCtrl::OnPaint(wxPaintEvent& event)
 {

+    bool drawHRules = HasFlag(wxLC_HRULES);
+    bool drawVRules = HasFlag(wxLC_VRULES);
+
+    if (!InReportView() || !drawHRules && !drawVRules)
+    {
+        event.Skip();
+        return;
+    }
+

     wxPaintDC dc(this);
 
     wxControl::OnPaint(event);
     wxPaintDC dc(this);
 
     wxControl::OnPaint(event);


@@ -2592,12 +2686,6 @@ void wxListCtrl::OnPaint(wxPaintEvent& event)
     // Reset the device origin since it may have been set
     dc.SetDeviceOrigin(0, 0);
 
     // Reset the device origin since it may have been set
     dc.SetDeviceOrigin(0, 0);
 

-    bool drawHRules = HasFlag(wxLC_HRULES);
-    bool drawVRules = HasFlag(wxLC_VRULES);
-
-    if (!InReportView() || !drawHRules && !drawVRules)
-        return;
-

     wxPen pen(wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT), 1, wxSOLID);
     dc.SetPen(pen);
     dc.SetBrush(* wxTRANSPARENT_BRUSH);
     wxPen pen(wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT), 1, wxSOLID);
     dc.SetPen(pen);
     dc.SetBrush(* wxTRANSPARENT_BRUSH);


@@ -2661,15 +2749,26 @@ void wxListCtrl::OnPaint(wxPaintEvent& event)
 WXLRESULT
 wxListCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
 {
 WXLRESULT
 wxListCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
 {

-#ifdef WM_PRINT
-    if ( nMsg == WM_PRINT )
+    switch ( nMsg )

     {
     {

-        // we should bypass our own WM_PRINT handling as we don't handle
-        // PRF_CHILDREN flag, so leave it to the native control itself
-        return MSWDefWindowProc(nMsg, wParam, lParam);
-    }
+#ifdef WM_PRINT
+        case WM_PRINT:
+            // we should bypass our own WM_PRINT handling as we don't handle
+            // PRF_CHILDREN flag, so leave it to the native control itself
+            return MSWDefWindowProc(nMsg, wParam, lParam);

 #endif // WM_PRINT
 
 #endif // WM_PRINT
 

+        case WM_CONTEXTMENU:
+            // because this message is propagated upwards the child-parent
+            // chain, we get it for the right clicks on the header window but
+            // this is confusing in wx as right clicking there already
+            // generates a separate wxEVT_COMMAND_LIST_COL_RIGHT_CLICK event
+            // so just ignore them
+            if ( (HWND)wParam == ListView_GetHeader(GetHwnd()) )
+                return 0;
+            //else: break
+    }
+

     return wxControl::MSWWindowProc(nMsg, wParam, lParam);
 }
 
     return wxControl::MSWWindowProc(nMsg, wParam, lParam);
 }
 


@@ -3004,7 +3103,7 @@ static void wxConvertToMSWListCol(HWND hwndList,
 #ifdef NM_CUSTOMDRAW // _WIN32_IE >= 0x0300
     if ( item.m_mask & wxLIST_MASK_IMAGE )
     {
 #ifdef NM_CUSTOMDRAW // _WIN32_IE >= 0x0300
     if ( item.m_mask & wxLIST_MASK_IMAGE )
     {

-        if ( wxTheApp->GetComCtl32Version() >= 470 )
+        if ( wxApp::GetComCtl32Version() >= 470 )

         {
             lvCol.mask |= LVCF_IMAGE;
 
         {
             lvCol.mask |= LVCF_IMAGE;