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Add wxStaticBitmap::SetScaleMode() to control bitmap display size

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This allows a bitmap to scale with the size of the wxStaticBitmap control.
Scaling can be controlled to fill the control with or without changing the
bitmaps aspect ratio.
This commit is contained in:
Tobias Taschner
2016-01-19 18:52:50 +01:00
committed by Vadim Zeitlin
parent 9c95b398c8
commit 58c7e6d54f
5 changed files with 157 additions and 3 deletions
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22
samples/widgets/statbmp.cpp
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@@ -67,6 +67,7 @@ private:
wxStaticBitmapBase *m_statbmp;
wxFilePickerCtrl *m_filepicker;
wxRadioBox *m_radio;
wxRadioBox *m_scaleRadio;
wxStaticBoxSizer *m_sbsizer;
DECLARE_WIDGETS_PAGE(StatBmpWidgetsPage)
@@ -82,6 +83,10 @@ void StatBmpWidgetsPage::CreateContent()
m_radio = new wxRadioBox(this, wxID_ANY, "implementation",
wxDefaultPosition, wxDefaultSize,
WXSIZEOF(choices), choices);
static const wxString scaleChoices[] = { "None", "Fill", "Aspect Fit", "Aspect Fill" };
m_scaleRadio = new wxRadioBox(this, wxID_ANY, "Scale Mode",
wxDefaultPosition, wxDefaultSize,
WXSIZEOF(scaleChoices), scaleChoices);
wxString testImage;
#if wxUSE_LIBPNG
@@ -95,6 +100,7 @@ void StatBmpWidgetsPage::CreateContent()
wxSizer *leftsizer = new wxBoxSizer(wxVERTICAL);
leftsizer->Add(m_radio, wxSizerFlags().Expand().Border());
leftsizer->Add(m_scaleRadio, wxSizerFlags().Expand().Border());
leftsizer->Add(m_filepicker, wxSizerFlags().Expand().Border());
wxSizer *sizer = new wxBoxSizer(wxHORIZONTAL);
sizer->Add(leftsizer, wxSizerFlags().Border());
@@ -130,6 +136,22 @@ void StatBmpWidgetsPage::RecreateWidget()
m_statbmp = new wxStaticBitmap(this, wxID_ANY, wxBitmap(image));
else
m_statbmp = new wxGenericStaticBitmap(this, wxID_ANY, wxBitmap(image));
wxStaticBitmapBase::ScaleMode scaleMode = (wxStaticBitmapBase::ScaleMode) m_scaleRadio->GetSelection();
m_statbmp->SetScaleMode(scaleMode);
if ( m_statbmp->GetScaleMode() != scaleMode )
wxLogError("Scale mode not supported by current implementation");
wxSizerItem* sbsizerItem = GetSizer()->GetItem(m_sbsizer);
if ( scaleMode == wxStaticBitmapBase::Scale_None )
{
sbsizerItem->SetProportion(0);
sbsizerItem->SetFlag(wxCENTER);
}
else
{
sbsizerItem->SetProportion(1);
sbsizerItem->SetFlag(wxEXPAND);
}
m_sbsizer->Add(m_statbmp, wxSizerFlags(1).Expand());
GetSizer()->Layout();
m_statbmp->Connect(wxEVT_LEFT_DOWN,