306 lines
8.0 KiB
C++
306 lines
8.0 KiB
C++
/////////////////////////////////////////////////////////////////////////////
|
|
// Name: src/generic/imaglist.cpp
|
|
// Purpose:
|
|
// Author: Robert Roebling
|
|
// Copyright: (c) 1998 Robert Roebling
|
|
// Licence: wxWindows licence
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
// For compilers that support precompilation, includes "wx.h".
|
|
#include "wx/wxprec.h"
|
|
|
|
|
|
#if wxUSE_IMAGLIST && !defined(wxHAS_NATIVE_IMAGELIST)
|
|
|
|
#include "wx/imaglist.h"
|
|
|
|
#ifndef WX_PRECOMP
|
|
#include "wx/dc.h"
|
|
#include "wx/icon.h"
|
|
#include "wx/image.h"
|
|
#endif
|
|
|
|
#include "wx/settings.h"
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// wxImageList
|
|
//-----------------------------------------------------------------------------
|
|
|
|
wxIMPLEMENT_DYNAMIC_CLASS(wxGenericImageList, wxObject);
|
|
wxIMPLEMENT_DYNAMIC_CLASS(wxImageList, wxGenericImageList);
|
|
|
|
wxGenericImageList::wxGenericImageList( int width, int height, bool mask, int initialCount )
|
|
{
|
|
(void)Create(width, height, mask, initialCount);
|
|
}
|
|
|
|
wxGenericImageList::~wxGenericImageList()
|
|
{
|
|
(void)RemoveAll();
|
|
}
|
|
|
|
int wxGenericImageList::GetImageCount() const
|
|
{
|
|
wxASSERT_MSG( m_size != wxSize(0, 0), "Invalid image list" );
|
|
|
|
return static_cast<int>(m_images.size());
|
|
}
|
|
|
|
bool wxGenericImageList::Create( int width, int height, bool mask, int WXUNUSED(initialCount) )
|
|
{
|
|
// Prevent from storing negative dimensions
|
|
m_size = wxSize(wxMax(width, 0), wxMax(height, 0));
|
|
m_useMask = mask;
|
|
m_scaleFactor = 1.0;
|
|
|
|
// Images must have proper size
|
|
return m_size != wxSize(0, 0);
|
|
}
|
|
|
|
namespace
|
|
{
|
|
wxBitmap GetImageListBitmap(const wxBitmap& bitmap, bool useMask, const wxSize& imgSize, double scaleFactor)
|
|
{
|
|
wxBitmap bmp(bitmap);
|
|
if ( useMask )
|
|
{
|
|
if ( bmp.GetMask() )
|
|
{
|
|
if ( bmp.HasAlpha() )
|
|
{
|
|
// We need to remove alpha channel for compatibility with
|
|
// native-based wxMSW wxImageList where stored images are not allowed
|
|
// to have both mask and alpha channel.
|
|
#if wxUSE_IMAGE
|
|
wxImage img = bmp.ConvertToImage();
|
|
img.ClearAlpha();
|
|
bmp = wxBitmap(img, -1, scaleFactor);
|
|
#endif // wxUSE_IMAGE
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if ( bmp.HasAlpha() )
|
|
{
|
|
// Convert alpha channel to mask.
|
|
#if wxUSE_IMAGE
|
|
wxImage img = bmp.ConvertToImage();
|
|
img.ConvertAlphaToMask();
|
|
bmp = wxBitmap(img, -1, scaleFactor);
|
|
#endif // wxUSE_IMAGE
|
|
}
|
|
else
|
|
{
|
|
// Like for wxMSW, use the light grey from standard colour map as transparent colour.
|
|
wxColour col = wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE);
|
|
bmp.SetMask(new wxMask(bmp, col));
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if ( bmp.GetMask() )
|
|
{
|
|
if ( bmp.HasAlpha() )
|
|
{
|
|
// TODO: It would be better to blend a mask with existing alpha values.
|
|
bmp.SetMask(NULL);
|
|
}
|
|
else
|
|
{
|
|
// Convert a mask to alpha values.
|
|
#if wxUSE_IMAGE
|
|
wxImage img = bmp.ConvertToImage();
|
|
img.InitAlpha();
|
|
bmp = wxBitmap(img, -1, scaleFactor);
|
|
#else
|
|
bmp.SetMask(NULL);
|
|
#endif // wxUSE_IMAGE
|
|
}
|
|
}
|
|
}
|
|
|
|
// Ensure image size is the same as the size of the images on the image list.
|
|
wxBitmap bmpResized;
|
|
const wxSize sz = bmp.GetScaledSize();
|
|
if ( sz.x == imgSize.x && sz.y == imgSize.y )
|
|
{
|
|
bmpResized = bmp;
|
|
}
|
|
else if ( sz.x > imgSize.x && sz.y > imgSize.y )
|
|
{
|
|
wxRect r(0, 0, imgSize.x, imgSize.y);
|
|
bmpResized = bmp.GetSubBitmap(r);
|
|
}
|
|
else
|
|
{
|
|
#if wxUSE_IMAGE
|
|
wxImage img = bmp.ConvertToImage();
|
|
// We need image with new physical size
|
|
wxImage imgResized = img.Size(scaleFactor * imgSize, wxPoint(0, 0), 0, 0, 0);
|
|
bmpResized = wxBitmap(imgResized, -1, scaleFactor);
|
|
#else
|
|
bmpResized = bmp;
|
|
#endif // wxUSE_IMAGE
|
|
}
|
|
|
|
return bmpResized;
|
|
}
|
|
};
|
|
|
|
int wxGenericImageList::Add( const wxBitmap &bitmap )
|
|
{
|
|
// Cannot add image to invalid list
|
|
if ( m_size == wxSize(0, 0) )
|
|
return -1;
|
|
|
|
if ( m_images.empty() )
|
|
{
|
|
// This is the first time Add() is called so we should save
|
|
// scale factor to check if further images will have the same scaling
|
|
m_scaleFactor = bitmap.GetScaleFactor();
|
|
}
|
|
else if ( bitmap.GetScaleFactor() != m_scaleFactor )
|
|
{
|
|
// All images in the list should have the same scale factor
|
|
return -1;
|
|
}
|
|
|
|
// We use the scaled, i.e. logical, size here as image list images size is
|
|
// specified in logical pixels, just as window coordinates and sizes are.
|
|
const wxSize bitmapSize = bitmap.GetScaledSize();
|
|
|
|
// There is a special case: a bitmap may contain more than one image,
|
|
// in which case we're supposed to chop it in parts, just as Windows
|
|
// ImageList_Add() does.
|
|
if ( bitmapSize.x == m_size.x )
|
|
{
|
|
m_images.push_back(GetImageListBitmap(bitmap, m_useMask, m_size, m_scaleFactor));
|
|
}
|
|
else if ( bitmapSize.x > m_size.x )
|
|
{
|
|
const int numImages = bitmapSize.x / m_size.x;
|
|
for (int subIndex = 0; subIndex < numImages; subIndex++)
|
|
{
|
|
wxRect rect(m_size.x * subIndex, 0, m_size.x, m_size.y);
|
|
m_images.push_back(GetImageListBitmap(bitmap.GetSubBitmap(rect), m_useMask, m_size, m_scaleFactor));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
return GetImageCount() - 1;
|
|
}
|
|
|
|
int wxGenericImageList::Add( const wxBitmap& bitmap, const wxBitmap& mask )
|
|
{
|
|
wxBitmap bmp(bitmap);
|
|
if (mask.IsOk())
|
|
bmp.SetMask(new wxMask(mask));
|
|
return Add(bmp);
|
|
}
|
|
|
|
int wxGenericImageList::Add( const wxBitmap& bitmap, const wxColour& maskColour )
|
|
{
|
|
wxBitmap bmp(bitmap);
|
|
bmp.SetMask(new wxMask(bitmap, maskColour));
|
|
return Add(bmp);
|
|
}
|
|
|
|
const wxBitmap *wxGenericImageList::DoGetPtr( int index ) const
|
|
{
|
|
if ( index < 0 || (size_t)index >= m_images.size() )
|
|
return NULL;
|
|
|
|
return &m_images[index];
|
|
}
|
|
|
|
// Get the bitmap
|
|
wxBitmap wxGenericImageList::GetBitmap(int index) const
|
|
{
|
|
const wxBitmap* bmp = DoGetPtr(index);
|
|
if (!bmp)
|
|
return wxNullBitmap;
|
|
|
|
return *bmp;
|
|
}
|
|
|
|
// Get the icon
|
|
wxIcon wxGenericImageList::GetIcon(int index) const
|
|
{
|
|
const wxBitmap* bmp = DoGetPtr(index);
|
|
if (!bmp)
|
|
return wxNullIcon;
|
|
|
|
wxIcon icon;
|
|
icon.CopyFromBitmap(*bmp);
|
|
return icon;
|
|
}
|
|
|
|
bool
|
|
wxGenericImageList::Replace(int index,
|
|
const wxBitmap& bitmap,
|
|
const wxBitmap& mask)
|
|
{
|
|
// Call DoGetPtr() just to check the index validity.
|
|
if ( !DoGetPtr(index) )
|
|
return false;
|
|
|
|
if ( bitmap.GetScaleFactor() != m_scaleFactor )
|
|
{
|
|
// All images in the list should have the same scale factor
|
|
return false;
|
|
}
|
|
|
|
wxBitmap bmp(bitmap);
|
|
if ( mask.IsOk() )
|
|
bmp.SetMask(new wxMask(mask));
|
|
|
|
m_images[index] = GetImageListBitmap(bmp, m_useMask, m_size, m_scaleFactor);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool wxGenericImageList::Remove( int index )
|
|
{
|
|
if ( index < 0 || (size_t)index >= m_images.size() )
|
|
return false;
|
|
|
|
m_images.erase(m_images.begin() + index);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool wxGenericImageList::RemoveAll()
|
|
{
|
|
m_images.clear();
|
|
|
|
return true;
|
|
}
|
|
|
|
bool wxGenericImageList::GetSize( int WXUNUSED(index), int &width, int &height ) const
|
|
{
|
|
width = m_size.x;
|
|
height = m_size.y;
|
|
|
|
wxCHECK_MSG( m_size != wxSize(0, 0), false, "Invalid image list" );
|
|
|
|
return true;
|
|
}
|
|
|
|
bool wxGenericImageList::Draw( int index, wxDC &dc, int x, int y,
|
|
int flags, bool WXUNUSED(solidBackground) )
|
|
{
|
|
const wxBitmap* bmp = DoGetPtr(index);
|
|
if ( !bmp )
|
|
return false;
|
|
|
|
dc.DrawBitmap(*bmp, x, y, (flags & wxIMAGELIST_DRAW_TRANSPARENT) != 0);
|
|
|
|
return true;
|
|
}
|
|
|
|
#endif // wxUSE_IMAGLIST
|