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Add wxRendererNative::DrawCollapseButton() for use in collapsible pane like controls.

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Add a new method that should be used for controls like wxCollapsiblePane.

It is implemented natively for wxMSW (Windows Vista+) and provides a generic fallback for other ports and WinXP.
This commit is contained in:
Tobias Taschner
2015-09-18 22:10:58 +02:00
parent 2e424fcf38
commit ef5ff89008
5 changed files with 172 additions and 1 deletions
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43
src/generic/renderg.cpp
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@@ -113,6 +113,13 @@ public:
const wxRect& rect,
int flags = 0) wxOVERRIDE;
virtual void DrawCollapseButton(wxWindow *win,
wxDC& dc,
const wxRect& rect,
int flags = 0);
virtual wxSize GetCollapseButtonSize(wxWindow *win, wxDC& dc);
virtual void DrawItemSelectionRect(wxWindow *win,
wxDC& dc,
const wxRect& rect,
@@ -686,6 +693,42 @@ wxRendererGeneric::DrawPushButton(wxWindow *win,
dc.DrawRectangle(rect);
}
void
wxRendererGeneric::DrawCollapseButton(wxWindow *win,
wxDC& dc,
const wxRect& rect,
int flags)
{
int arrowHalf = rect.width / 5;
int rectMid = rect.width / 2;
int arrowTopY = (rect.height / 2) - (arrowHalf / 2);
wxPoint pt[3];
if (flags & wxCONTROL_EXPANDED)
{
// This should always result in arrow with odd width.
pt[0] = wxPoint(rectMid - arrowHalf, arrowTopY);
pt[1] = wxPoint(rectMid + arrowHalf, arrowTopY);
pt[2] = wxPoint(rectMid, arrowTopY + arrowHalf);
}
else
{
// This should always result in arrow with odd height.
pt[0] = wxPoint(arrowTopY, rectMid - arrowHalf);
pt[1] = wxPoint(arrowTopY + arrowHalf, rectMid);
pt[2] = wxPoint(arrowTopY, rectMid + arrowHalf);
}
dc.SetBrush(wxBrush(win->GetForegroundColour()));
dc.SetPen(wxPen(win->GetForegroundColour()));
dc.DrawPolygon(WXSIZEOF(pt), pt, rect.x, rect.y);
}
wxSize wxRendererGeneric::GetCollapseButtonSize(wxWindow *WXUNUSED(win), wxDC& WXUNUSED(dc))
{
return wxSize(18, 18);
}
void
wxRendererGeneric::DrawItemSelectionRect(wxWindow * win,
wxDC& dc,