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wxWidgets/tests/graphics/imagelist.cpp
Artur Wieczorek 331840edb3 Fix replacing images in generic wxImageList 
Bitmaps stored in the list as a result of replacing existing ones should
conform to the same constraints as bitmaps directly added to the list.
These constraints are applied in the shared GetImageListBitmap() function
called both on adding and replacing the images.
2021-01-13 18:38:57 +01:00

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///////////////////////////////////////////////////////////////////////////////
// Name: tests/graphics/imagelist.cpp
// Purpose: image list unit tests
// Author: Artur Wieczorek
// Created: 2021-01-11
// Copyright: (c) 2021 wxWidgets development team
///////////////////////////////////////////////////////////////////////////////
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
#include "testprec.h"
#include "wx/bitmap.h"
#include "wx/graphics.h"
#include "wx/icon.h"
#include "wx/imaglist.h"
#include "wx/dcmemory.h"
// ----------------------------------------------------------------------------
// tests
// ----------------------------------------------------------------------------
TEST_CASE("ImageList:WithMask", "[imagelist][withmask]")
{
wxInitAllImageHandlers();
wxBitmap bmpRGB(32, 32, 24);
{
wxMemoryDC mdc(bmpRGB);
mdc.SetBackground(*wxBLUE_BRUSH);
mdc.Clear();
mdc.SetBrush(*wxRED_BRUSH);
mdc.DrawRectangle(4, 4, 24, 24);
}
REQUIRE(bmpRGB.IsOk());
wxBitmap bmpRGBA;
bmpRGBA.LoadFile("image/wx.png", wxBITMAP_TYPE_PNG);
REQUIRE(bmpRGBA.IsOk());
wxBitmap bmpMask(32, 32, 1);
{
wxMemoryDC mdc(bmpMask);
#if wxUSE_GRAPHICS_CONTEXT
wxGraphicsContext* gc = mdc.GetGraphicsContext();
if ( gc )
gc->SetAntialiasMode(wxANTIALIAS_NONE);
#endif //wxUSE_GRAPHICS_CONTEXT
mdc.SetBackground(*wxBLACK_BRUSH);
mdc.Clear();
mdc.SetBrush(*wxWHITE_BRUSH);
mdc.DrawRectangle(0, 0, 16, 32);
}
wxBitmap bmpRGBWithMask(bmpRGB);
bmpRGBWithMask.SetMask(new wxMask(bmpMask));
REQUIRE(bmpRGBWithMask.IsOk());
wxBitmap bmpRGBAWithMask(bmpRGBA);
bmpRGBAWithMask.SetMask(new wxMask(bmpMask));
REQUIRE(bmpRGBAWithMask.IsOk());
wxIcon ico;
ico.LoadFile("image/wx.ico", wxBITMAP_TYPE_ICO);
REQUIRE(ico.IsOk());
REQUIRE(bmpRGB.HasAlpha() == false);
REQUIRE(bmpRGB.GetMask() == NULL);
REQUIRE(bmpRGBWithMask.HasAlpha() == false);
REQUIRE(bmpRGBWithMask.GetMask() != NULL);
REQUIRE(bmpRGBA.HasAlpha() == true);
REQUIRE(bmpRGBA.GetMask() == NULL);
REQUIRE(bmpRGBAWithMask.HasAlpha() == true);
REQUIRE(bmpRGBAWithMask.GetMask() != NULL);
wxImageList il(32, 32, true);
SECTION("Add RGB image to list")
{
il.RemoveAll();
int idx = il.Add(bmpRGB);
CHECK(il.GetImageCount() == 1);
wxBitmap bmp1 = il.GetBitmap(idx);
CHECK(bmp1.HasAlpha() == false);
CHECK(bmp1.GetMask() != NULL);
CHECK(bmp1.GetWidth() == 32);
CHECK(bmp1.GetHeight() == 32);
idx = il.Add(bmpRGBWithMask);
CHECK(il.GetImageCount() == 2);
wxBitmap bmp2 = il.GetBitmap(idx);
CHECK(bmp2.HasAlpha() == false);
CHECK(bmp2.GetMask() != NULL);
CHECK(bmp2.GetWidth() == 32);
CHECK(bmp2.GetHeight() == 32);
}
SECTION("Add RGBA image to list")
{
il.RemoveAll();
int idx = il.Add(bmpRGBA);
CHECK(il.GetImageCount() == 1);
wxBitmap bmp1 = il.GetBitmap(idx);
CHECK(bmp1.HasAlpha() == false);
CHECK(bmp1.GetMask() != NULL);
CHECK(bmp1.GetWidth() == 32);
CHECK(bmp1.GetHeight() == 32);
idx = il.Add(bmpRGBAWithMask);
CHECK(il.GetImageCount() == 2);
wxBitmap bmp2 = il.GetBitmap(idx);
CHECK(bmp2.HasAlpha() == false);
CHECK(bmp2.GetMask() != NULL);
CHECK(bmp2.GetWidth() == 32);
CHECK(bmp2.GetHeight() == 32);
}
SECTION("Add icon to list")
{
il.RemoveAll();
int idx = il.Add(ico);
CHECK(il.GetImageCount() == 1);
wxIcon icon1 = il.GetIcon(idx);
CHECK(icon1.GetWidth() == 32);
CHECK(icon1.GetHeight() == 32);
}
SECTION("Replace with RGB image")
{
il.RemoveAll();
int idx1 = il.Add(bmpRGBA);
CHECK(il.GetImageCount() == 1);
int idx2 = il.Add(bmpRGBAWithMask);
CHECK(il.GetImageCount() == 2);
il.Replace(idx1, bmpRGB);
il.Replace(idx2, bmpRGBWithMask);
wxBitmap bmp1 = il.GetBitmap(idx1);
CHECK(bmp1.HasAlpha() == false);
CHECK(bmp1.GetMask() != NULL);
CHECK(bmp1.GetWidth() == 32);
CHECK(bmp1.GetHeight() == 32);
wxBitmap bmp2 = il.GetBitmap(idx2);
CHECK(bmp2.HasAlpha() == false);
CHECK(bmp2.GetMask() != NULL);
CHECK(bmp2.GetWidth() == 32);
CHECK(bmp2.GetHeight() == 32);
}
SECTION("Replace with RGBA image")
{
il.RemoveAll();
int idx1 = il.Add(bmpRGB);
CHECK(il.GetImageCount() == 1);
int idx2 = il.Add(bmpRGBWithMask);
CHECK(il.GetImageCount() == 2);
il.Replace(idx1, bmpRGBA);
il.Replace(idx2, bmpRGBAWithMask);
wxBitmap bmp1 = il.GetBitmap(idx1);
CHECK(bmp1.HasAlpha() == false);
CHECK(bmp1.GetMask() != NULL);
CHECK(bmp1.GetWidth() == 32);
CHECK(bmp1.GetHeight() == 32);
wxBitmap bmp2 = il.GetBitmap(idx2);
CHECK(bmp2.HasAlpha() == false);
CHECK(bmp2.GetMask() != NULL);
CHECK(bmp2.GetWidth() == 32);
CHECK(bmp2.GetHeight() == 32);
}
}
TEST_CASE("ImageList:NoMask", "[imagelist][nomask]")
{
wxInitAllImageHandlers();
wxBitmap bmpRGB(32, 32, 24);
{
wxMemoryDC mdc(bmpRGB);
mdc.SetBackground(*wxBLUE_BRUSH);
mdc.Clear();
mdc.SetBrush(*wxRED_BRUSH);
mdc.DrawRectangle(4, 4, 24, 24);
}
REQUIRE(bmpRGB.IsOk());
wxBitmap bmpRGBA;
bmpRGBA.LoadFile("image/wx.png", wxBITMAP_TYPE_PNG);
REQUIRE(bmpRGBA.IsOk());
wxBitmap bmpMask(32, 32, 1);
{
wxMemoryDC mdc(bmpMask);
#if wxUSE_GRAPHICS_CONTEXT
wxGraphicsContext* gc = mdc.GetGraphicsContext();
if ( gc )
gc->SetAntialiasMode(wxANTIALIAS_NONE);
#endif //wxUSE_GRAPHICS_CONTEXT
mdc.SetBackground(*wxBLACK_BRUSH);
mdc.Clear();
mdc.SetBrush(*wxWHITE_BRUSH);
mdc.DrawRectangle(0, 0, 16, 32);
}
wxBitmap bmpRGBWithMask(bmpRGB);
bmpRGBWithMask.SetMask(new wxMask(bmpMask));
REQUIRE(bmpRGBWithMask.IsOk());
wxBitmap bmpRGBAWithMask(bmpRGBA);
bmpRGBAWithMask.SetMask(new wxMask(bmpMask));
REQUIRE(bmpRGBAWithMask.IsOk());
wxIcon ico;
ico.LoadFile("image/wx.ico", wxBITMAP_TYPE_ICO);
REQUIRE(ico.IsOk());
REQUIRE(bmpRGB.HasAlpha() == false);
REQUIRE(bmpRGB.GetMask() == NULL);
REQUIRE(bmpRGBWithMask.HasAlpha() == false);
REQUIRE(bmpRGBWithMask.GetMask() != NULL);
REQUIRE(bmpRGBA.HasAlpha() == true);
REQUIRE(bmpRGBA.GetMask() == NULL);
REQUIRE(bmpRGBAWithMask.HasAlpha() == true);
REQUIRE(bmpRGBAWithMask.GetMask() != NULL);
wxImageList il(32, 32, false);
SECTION("Add RGB image to list")
{
il.RemoveAll();
int idx = il.Add(bmpRGB);
CHECK(il.GetImageCount() == 1);
wxBitmap bmp1 = il.GetBitmap(idx);
CHECK(bmp1.HasAlpha() == false);
CHECK(bmp1.GetMask() == NULL);
CHECK(bmp1.GetWidth() == 32);
CHECK(bmp1.GetHeight() == 32);
idx = il.Add(bmpRGBWithMask);
CHECK(il.GetImageCount() == 2);
wxBitmap bmp2 = il.GetBitmap(idx);
CHECK(bmp2.HasAlpha() == true);
CHECK(bmp2.GetMask() == NULL);
CHECK(bmp2.GetWidth() == 32);
CHECK(bmp2.GetHeight() == 32);
}
SECTION("Add RGBA image to list")
{
il.RemoveAll();
int idx = il.Add(bmpRGBA);
CHECK(il.GetImageCount() == 1);
wxBitmap bmp1 = il.GetBitmap(idx);
CHECK(bmp1.HasAlpha() == true);
CHECK(bmp1.GetMask() == NULL);
CHECK(bmp1.GetWidth() == 32);
CHECK(bmp1.GetHeight() == 32);
idx = il.Add(bmpRGBAWithMask);
CHECK(il.GetImageCount() == 2);
wxBitmap bmp2 = il.GetBitmap(idx);
CHECK(bmp2.HasAlpha() == true);
CHECK(bmp2.GetMask() == NULL);
CHECK(bmp2.GetWidth() == 32);
CHECK(bmp2.GetHeight() == 32);
}
SECTION("Add icon to list")
{
il.RemoveAll();
int idx = il.Add(ico);
CHECK(il.GetImageCount() == 1);
wxIcon icon1 = il.GetIcon(idx);
CHECK(icon1.GetWidth() == 32);
CHECK(icon1.GetHeight() == 32);
}
SECTION("Replace with RGB image")
{
il.RemoveAll();
int idx1 = il.Add(bmpRGBA);
CHECK(il.GetImageCount() == 1);
int idx2 = il.Add(bmpRGBAWithMask);
CHECK(il.GetImageCount() == 2);
il.Replace(idx1, bmpRGB);
il.Replace(idx2, bmpRGBWithMask);
wxBitmap bmp1 = il.GetBitmap(idx1);
CHECK(bmp1.HasAlpha() == false);
CHECK(bmp1.GetMask() == NULL);
CHECK(bmp1.GetWidth() == 32);
CHECK(bmp1.GetHeight() == 32);
wxBitmap bmp2 = il.GetBitmap(idx2);
CHECK(bmp2.HasAlpha() == true);
CHECK(bmp2.GetMask() == NULL);
CHECK(bmp2.GetWidth() == 32);
CHECK(bmp2.GetHeight() == 32);
}
SECTION("Replace with RGBA image")
{
il.RemoveAll();
int idx1 = il.Add(bmpRGB);
CHECK(il.GetImageCount() == 1);
int idx2 = il.Add(bmpRGBWithMask);
CHECK(il.GetImageCount() == 2);
il.Replace(idx1, bmpRGBA);
il.Replace(idx2, bmpRGBAWithMask);
wxBitmap bmp1 = il.GetBitmap(idx1);
CHECK(bmp1.HasAlpha() == true);
CHECK(bmp1.GetMask() == NULL);
CHECK(bmp1.GetWidth() == 32);
CHECK(bmp1.GetHeight() == 32);
wxBitmap bmp2 = il.GetBitmap(idx2);
CHECK(bmp2.HasAlpha() == true);
CHECK(bmp2.GetMask() == NULL);
CHECK(bmp2.GetWidth() == 32);
CHECK(bmp2.GetHeight() == 32);
}
}
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