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Support DPI change in sizers

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Return the size of DoGetDefaultBorderInPx as float, so no precision is lost
when multiplying it for DoubleBorder and TripleBorder.

Closes #18551.
This commit is contained in:
Maarten Bent
2019-11-01 21:07:15 +01:00
parent 349e73994b
commit 918e102533
4 changed files with 60 additions and 9 deletions
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31
src/msw/window.cpp
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@@ -4884,6 +4884,37 @@ wxWindowMSW::MSWUpdateOnDPIChange(const wxSize& oldDPI, const wxSize& newDPI)
// update font if necessary
MSWUpdateFontOnDPIChange(newDPI);
// update sizers
if ( GetSizer() )
{
wxSizerItemList::compatibility_iterator current =
GetSizer()->GetChildren().GetFirst();
while ( current )
{
wxSizerItem* sizerItem = current->GetData();
int border = sizerItem->GetBorder();
ScaleCoordIfSet(border, scaleFactor);
sizerItem->SetBorder(border);
// only scale sizers and spacers, not windows
if ( sizerItem->IsSizer() || sizerItem->IsSpacer() )
{
wxSize min = sizerItem->GetMinSize();
ScaleCoordIfSet(min.x, scaleFactor);
ScaleCoordIfSet(min.y, scaleFactor);
sizerItem->SetMinSize(min);
wxSize size = sizerItem->GetSize();
ScaleCoordIfSet(size.x, scaleFactor);
ScaleCoordIfSet(size.y, scaleFactor);
sizerItem->SetDimension(wxDefaultPosition, size);
}
current = current->GetNext();
}
}
// update children
wxWindowList::compatibility_iterator current = GetChildren().GetFirst();
while ( current )