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fixes to static box borders calculations and significant code cleanup (finalizes patch 1166587)

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@33247 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2005-04-02 01:17:51 +00:00
parent a27cbf44fc
commit 3b6e5fb3f5
4 changed files with 104 additions and 88 deletions
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160
src/msw/statbox.cpp
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@@ -99,10 +99,6 @@ wxCONSTRUCTOR_6( wxStaticBox , wxWindow* , Parent , wxWindowID , Id , wxString ,
IMPLEMENT_DYNAMIC_CLASS(wxStaticBox, wxControl)
#endif
BEGIN_EVENT_TABLE(wxStaticBox, wxControl)
EVT_PAINT(wxStaticBox::OnPaint)
END_EVENT_TABLE()
// ============================================================================
// implementation
// ============================================================================
@@ -125,6 +121,8 @@ bool wxStaticBox::Create(wxWindow *parent,
if ( !MSWCreateControl(wxT("BUTTON"), label, pos, size) )
return false;
Connect(wxEVT_PAINT, wxPaintEventHandler(wxStaticBox::OnPaint));
return true;
}
@@ -198,58 +196,61 @@ void wxStaticBox::GetBordersForSizer(int *borderTop, int *borderOther) const
#endif // !wxDIALOG_UNIT_COMPATIBILITY
}
// rc must be in client coords!
void wxStaticBox::MSWClipBoxRegion(WXHRGN hrgn, const WXRECTPTR rc)
// MSWGetRegionWithoutSelf helper: removes the given rectangle from region
static inline void
SubtractRectFromRgn(HRGN hrgn, int left, int top, int right, int bottom)
{
HRGN hrgnchild;
AutoHRGN hrgnRect(::CreateRectRgn(left, top, right, bottom));
if ( !hrgnRect )
{
wxLogLastError(_T("CreateRectRgn()"));
return;
}
// top
hrgnchild = ::CreateRectRgn(0, 0, ((const RECT*) rc)->right, 14);
::CombineRgn((HRGN) hrgn, (HRGN) hrgn, hrgnchild, RGN_DIFF);
::DeleteObject(hrgnchild);
// bottom
hrgnchild = ::CreateRectRgn(0, ((const RECT*) rc)->bottom - 7, ((const RECT*) rc)->right, ((const RECT*) rc)->bottom);
::CombineRgn((HRGN) hrgn, (HRGN) hrgn, hrgnchild, RGN_DIFF);
::DeleteObject(hrgnchild);
// left
hrgnchild = ::CreateRectRgn(0, 0, 7, ((const RECT*) rc)->bottom);
::CombineRgn((HRGN) hrgn, (HRGN) hrgn, hrgnchild, RGN_DIFF);
::DeleteObject(hrgnchild);
// right
hrgnchild = ::CreateRectRgn(((const RECT*) rc)->right - 7, 0, ((const RECT*) rc)->right, ((const RECT*) rc)->bottom);
::CombineRgn((HRGN) hrgn, (HRGN) hrgn, hrgnchild, RGN_DIFF);
::DeleteObject(hrgnchild);
::CombineRgn(hrgn, hrgn, hrgnRect, RGN_DIFF);
}
WXHRGN wxStaticBox::MSWCalculateClippingRegion()
void wxStaticBox::MSWGetRegionWithoutSelf(WXHRGN hRgn, int w, int h)
{
HRGN hrgn = (HRGN)hRgn;
// remove the area occupied by the static box borders from the region
int borderTop, border;
GetBordersForSizer(&borderTop, &border);
// top
SubtractRectFromRgn(hrgn, 0, 0, w, borderTop);
// bottom
SubtractRectFromRgn(hrgn, 0, h - border, w, h);
// left
SubtractRectFromRgn(hrgn, 0, 0, border, h);
// right
SubtractRectFromRgn(hrgn, w - border, 0, w, h);
}
WXHRGN wxStaticBox::MSWGetRegionWithoutChildren()
{
RECT rc;
::GetWindowRect(GetHwnd(), &rc);
HRGN hrgn = ::CreateRectRgn(rc.left, rc.top, rc.right + 1, rc.bottom + 1);
wxList hWnds;
HWND child = ::GetWindow((HWND) GetParent()->GetHWND(), GW_CHILD);
while (child != 0)
// iterate over all child windows (not just wxWindows but all windows)
for ( HWND child = ::GetWindow(GetHwndOf(GetParent()), GW_CHILD);
child;
child = ::GetWindow(child, GW_HWNDNEXT) )
{
hWnds.Append((wxObject*) child);
child = ::GetWindow(child, GW_HWNDNEXT);
}
for (wxNode* node = hWnds.GetFirst(); node; node = node->GetNext())
{
HWND child = (HWND) node->GetData();
wxWindow* childWindow = wxGetWindowFromHWND((WXHWND) child);
wxWindow *childWindow = wxGetWindowFromHWND((WXHWND) child);
// can't just test for (this != child) here since if a wxStaticBox
// overlaps another wxStaticBox then neither are drawn. The overlapping
// region will flicker but we shouldn't have overlapping windows anyway.
if (!childWindow || !childWindow->IsKindOf(CLASSINFO(wxStaticBox)))
if ( !childWindow || !wxDynamicCast(childWindow, wxStaticBox) )
{
::GetWindowRect(child, &rc);
if ( RectInRegion(hrgn, &rc) )
if ( ::RectInRegion(hrgn, &rc) )
{
// need to remove WS_CLIPSIBLINGS from all sibling windows
// that are within this staticbox if set
@@ -267,17 +268,29 @@ WXHRGN wxStaticBox::MSWCalculateClippingRegion()
SWP_FRAMECHANGED);
}
HRGN hrgnchild = ::CreateRectRgnIndirect(&rc);
::CombineRgn(hrgn, hrgn, hrgnchild, RGN_DIFF);
::DeleteObject(hrgnchild);
AutoHRGN hrgnChild(::CreateRectRgnIndirect(&rc));
::CombineRgn(hrgn, hrgn, hrgnChild, RGN_DIFF);
}
}
}
::GetWindowRect(GetHwnd(), &rc);
::OffsetRgn(hrgn, -rc.left, -rc.top);
return hrgn;
return (WXHRGN)hrgn;
}
// helper for OnPaint()
void wxStaticBox::PaintBackground(wxDC& dc, const RECT& rc)
{
HBRUSH hbr = (HBRUSH)DoMSWControlColor(GetHdcOf(dc), wxNullColour);
if ( !hbr )
{
wxBrush *
brush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour());
if ( brush )
hbr = GetHbrushOf(*brush);
}
if ( hbr )
::FillRect(GetHdcOf(dc), &rc, hbr);
}
void wxStaticBox::OnPaint(wxPaintEvent& WXUNUSED(event))
@@ -286,48 +299,45 @@ void wxStaticBox::OnPaint(wxPaintEvent& WXUNUSED(event))
RECT rc;
::GetClientRect(GetHwnd(), &rc);
// paint the actual box
// draw the entire box in a memory DC, but only blit the bits not redrawn
// either by our children windows nor by FillRect() painting the background
// below
wxMemoryDC memdc;
wxBitmap bitmap(rc.right, rc.bottom);
memdc.SelectObject(bitmap);
// get bg brush
WXHBRUSH hbr = DoMSWControlColor(GetHdcOf(memdc), wxNullColour);
if ( !hbr )
{
wxBrush *brush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
hbr = (WXHBRUSH)brush->GetResourceHandle();
}
// draw solid box, but only blit the good bits
::FillRect(GetHdcOf(memdc), &rc, (HBRUSH)hbr);
PaintBackground(memdc, rc);
MSWDefWindowProc(WM_PAINT, (WPARAM)GetHdcOf(memdc), 0);
int borderTop, border;
GetBordersForSizer(&borderTop, &border);
// top
dc.Blit(7, 0, rc.right - 7, 14, &memdc, 7, 0);
dc.Blit(border, 0, rc.right - border, borderTop,
&memdc, border, 0);
// bottom
dc.Blit(7, rc.bottom - 7, rc.right - 7, rc.bottom, &memdc, 7, rc.bottom - 7);
dc.Blit(border, rc.bottom - border, rc.right - border, rc.bottom,
&memdc, border, rc.bottom - border);
// left
dc.Blit(0, 0, 7, rc.bottom, &memdc, 0, 0);
dc.Blit(0, 0, border, rc.bottom,
&memdc, 0, 0);
// right
dc.Blit(rc.right - 7, 0, rc.right, rc.bottom, &memdc, rc.right - 7, 0);
dc.Blit(rc.right - border, 0, rc.right, rc.bottom,
&memdc, rc.right - border, 0);
AutoHRGN hrgn((HRGN)MSWGetRegionWithoutChildren());
RECT rcWin;
::GetWindowRect(GetHwnd(), &rcWin);
::OffsetRgn(hrgn, -rcWin.left, -rcWin.top);
// paint the inner
HRGN hrgn = (HRGN)MSWCalculateClippingRegion();
// now remove the box itself
MSWClipBoxRegion((WXHRGN) hrgn, (const WXRECTPTR) &rc);
hbr = DoMSWControlColor(GetHdcOf(dc), wxNullColour);
if ( !hbr )
{
wxBrush *brush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
hbr = (WXHBRUSH)brush->GetResourceHandle();
}
MSWGetRegionWithoutSelf((WXHRGN) hrgn, rc.right, rc.bottom);
// and paint the inside of the box (excluding child controls)
::SelectClipRgn(GetHdcOf(dc), hrgn);
::FillRect(GetHdcOf(dc), &rc, (HBRUSH)hbr);
PaintBackground(dc, rc);
::SelectClipRgn(GetHdcOf(dc), NULL);
::DeleteObject(hrgn);
}
#endif // wxUSE_STATBOX