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c9798cada1
Run GUI resource tests on WXMSW only. Fix mouse enter/leave events test in wxQt by yielding longer.
90 lines
2.5 KiB
C++
90 lines
2.5 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: tests/controls/statbmptest.cpp
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// Purpose: wxStaticBitmap unit test
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// Author: Vadim Zeitlin
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// Created: 2026-01-22
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// Copyright: (c) 2026 Vadim Zeitlin
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///////////////////////////////////////////////////////////////////////////////
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#include "testprec.h"
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#if wxUSE_STATBMP
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#ifndef WX_PRECOMP
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#include "wx/app.h"
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#endif // WX_PRECOMP
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#include "wx/statbmp.h"
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#include "wx/dcmemory.h"
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#ifdef __WXMSW__
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#include "wx/msw/private/resource_usage.h"
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#endif // __WXMSW__
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static void TestStaticBitmap(wxWindow* window, double scale)
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{
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// Create the bitmaps using the window scale factor to make sure they
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// are used directly by wxStaticBitmap instead, without any rescaling
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// (which would create temporary bitmaps and hide the manifestation of
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// the bug that this test was written to trigger, see #26106).
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wxBitmap bmp1;
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bmp1.CreateWithDIPSize(16, 16, scale);
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wxBitmap bmp2;
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bmp2.CreateWithDIPSize(32, 32, scale);
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wxIcon icon;
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icon.CopyFromBitmap(bmp1);
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wxStaticBitmap statbmp(window, wxID_ANY, bmp1);
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REQUIRE( statbmp.GetBitmap().IsOk() );
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statbmp.SetBitmap(bmp2);
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REQUIRE( statbmp.GetBitmap().IsOk() );
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// Check that the bitmap is valid by selecting it into wxMemoryDC:
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// unlike IsOk() check, this would fail if it had been destroyed.
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REQUIRE_NOTHROW( wxMemoryDC(bmp1) );
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statbmp.SetIcon(icon);
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REQUIRE_NOTHROW( wxMemoryDC(bmp2) );
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statbmp.SetBitmap(bmp2);
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REQUIRE_NOTHROW( wxMemoryDC(bmp1) );
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}
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TEST_CASE("wxStaticBitmap::Set", "[wxStaticBitmap][bitmap]")
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{
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auto* const window = wxTheApp->GetTopWindow();
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TestStaticBitmap(window, window->GetDPIScaleFactor());
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}
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#ifdef __WXMSW__
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TEST_CASE("wxStaticBitmap::ResourceLeak", "[wxStaticBitmap]")
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{
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auto* const window = wxTheApp->GetTopWindow();
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auto const scale = window->GetDPIScaleFactor();
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wxGUIObjectUsage usageBefore;
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for ( int n = 0; n < 100; ++n )
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{
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TestStaticBitmap(window, scale);
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// First use of GDI allocates some resources, so consider the state
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// after the first iteration as the baseline: if there are any leaks,
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// we'll see them in the subsequent iterations too and the test below
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// will fail.
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if ( n == 0 )
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usageBefore = wxGetCurrentlyUsedResources();
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}
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auto const usageAfter = wxGetCurrentlyUsedResources();
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CHECK( usageAfter.numGDI == usageBefore.numGDI );
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}
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#endif // __WXMSW__
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#endif // wxUSE_STATBMP
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