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don't crash when IsEmpty() is called on invalid bundle; don't assert if GetIcon(-1) is called on an invalid or empty bundle as existing code expects to be able to do it

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@45320 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2007-04-07 23:36:08 +00:00
parent 54eaf0c8b2
commit 9fc3681aeb
1 changed files with 6 additions and 7 deletions
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13
src/common/iconbndl.cpp
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@@ -149,11 +149,7 @@ void wxIconBundle::AddIcon(const wxString& file, long type)
wxIcon wxIconBundle::GetIcon(const wxSize& size) const
{
wxCHECK_MSG( IsOk(), wxNullIcon, _T("invalid icon bundle") );
const wxIconArray& iconArray = M_ICONBUNDLEDATA->m_icons;
const size_t count = iconArray.size();
const size_t count = GetIconCount();
// optimize for the common case of icon bundles containing one icon only
wxIcon iconBest;
@@ -164,7 +160,7 @@ wxIcon wxIconBundle::GetIcon(const wxSize& size) const
break;
case 1:
iconBest = iconArray[0];
iconBest = M_ICONBUNDLEDATA->m_icons[0];
break;
default:
@@ -172,6 +168,7 @@ wxIcon wxIconBundle::GetIcon(const wxSize& size) const
wxCoord sysX = wxSystemSettings::GetMetric( wxSYS_ICON_X ),
sysY = wxSystemSettings::GetMetric( wxSYS_ICON_Y );
const wxIconArray& iconArray = M_ICONBUNDLEDATA->m_icons;
for ( size_t i = 0; i < count; i++ )
{
const wxIcon& icon = iconArray[i];
@@ -227,11 +224,13 @@ void wxIconBundle::AddIcon(const wxIcon& icon)
size_t wxIconBundle::GetIconCount() const
{
return M_ICONBUNDLEDATA->m_icons.size();
return IsOk() ? M_ICONBUNDLEDATA->m_icons.size() : 0;
}
wxIcon wxIconBundle::GetIconByIndex(size_t n) const
{
wxCHECK_MSG( n < GetIconCount(), wxNullIcon, _T("invalid index") );
return M_ICONBUNDLEDATA->m_icons[n];
}