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Use Explorer style for wxTreeCtrl with wxTR_TWIST_BUTTONS in wxMSW.

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The tree control style used by Explorer uses rotating triangles instead of the
standard "+/-" buttons and so seems to correspond relatively well to this
style. And this provides a possibility to have a more standard-looking tree
controls in wxWidgets programs.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@66850 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2011-02-06 01:00:48 +00:00
parent 1f77d487b7
commit e615d356fc
2 changed files with 23 additions and 0 deletions
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8
interface/wx/treectrl.h
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@@ -29,6 +29,14 @@
For convenience to document that no buttons are to be drawn. For convenience to document that no buttons are to be drawn.
@style{wxTR_HAS_BUTTONS} @style{wxTR_HAS_BUTTONS}
Use this style to show + and - buttons to the left of parent items. Use this style to show + and - buttons to the left of parent items.
@style{wxTR_TWIST_BUTTONS}
Selects alternative style of @c +/@c - buttons and shows rotating
("twisting") arrows instead. Currently this style is only implemented
under Microsoft Windows Vista and later Windows versions and is ignored
under the other platforms. Notice that under Vista this style results
in the same appearance as used by the tree control in Explorer and
other built-in programs and so using it may be preferable to the
default style.
@style{wxTR_NO_LINES} @style{wxTR_NO_LINES}
Use this style to hide vertical level connectors. Use this style to hide vertical level connectors.
@style{wxTR_FULL_ROW_HIGHLIGHT} @style{wxTR_FULL_ROW_HIGHLIGHT}

15
src/msw/treectrl.cpp
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@@ -42,6 +42,7 @@
#include "wx/imaglist.h" #include "wx/imaglist.h"
#include "wx/msw/dragimag.h" #include "wx/msw/dragimag.h"
#include "wx/msw/uxtheme.h"
// macros to hide the cast ugliness // macros to hide the cast ugliness
// -------------------------------- // --------------------------------
@@ -741,6 +742,20 @@ bool wxTreeCtrl::Create(wxWindow *parent,
wxSetCCUnicodeFormat(GetHwnd()); wxSetCCUnicodeFormat(GetHwnd());
if ( m_windowStyle & wxTR_TWIST_BUTTONS )
{
// Under Vista and later Explorer uses rotating ("twist") buttons
// instead of the default "+/-" ones so apply its theme to the tree
// control to implement this style.
if ( wxGetWinVersion() >= wxWinVersion_Vista )
{
if ( wxUxThemeEngine *theme = wxUxThemeEngine::GetIfActive() )
{
theme->SetWindowTheme(GetHwnd(), L"EXPLORER", NULL);
}
}
}
return true; return true;
} }