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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@4 8ced0084-cf51-0410-be5f-012b33b47a6e
402 lines
12 KiB
C++
402 lines
12 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: src/msw/imaglist.cpp
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// Purpose: wxImageList implementation for Win32
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// Author: Julian Smart
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// Modified by:
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// Created: 04/01/98
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// RCS-ID: $Id: imaglist.cpp 43786 2006-12-04 02:09:59Z VZ $
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// Copyright: (c) Julian Smart
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// ============================================================================
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// declarations
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// ============================================================================
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#ifndef WX_PRECOMP
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#include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"
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#include "wx/window.h"
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#include "wx/icon.h"
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#include "wx/dc.h"
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#include "wx/string.h"
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#include "wx/dcmemory.h"
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#include "wx/intl.h"
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#include "wx/log.h"
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#include "wx/image.h"
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#include <stdio.h>
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#endif
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#include "wx/imaglist.h"
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#include "wx/msw/private.h"
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// ----------------------------------------------------------------------------
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// wxWin macros
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// ----------------------------------------------------------------------------
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IMPLEMENT_DYNAMIC_CLASS(wxImageList, wxObject)
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#define GetHImageList() ((HIMAGELIST)m_hImageList)
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// ----------------------------------------------------------------------------
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// private functions
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// ----------------------------------------------------------------------------
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// returns the mask if it's valid, otherwise the bitmap mask and, if it's not
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// valid neither, a "solid" mask (no transparent zones at all)
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static HBITMAP GetMaskForImage(const wxBitmap& bitmap, const wxBitmap& mask);
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// ============================================================================
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// implementation
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// ============================================================================
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// ----------------------------------------------------------------------------
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// wxImageList creation/destruction
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// ----------------------------------------------------------------------------
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wxImageList::wxImageList()
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{
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m_hImageList = 0;
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}
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// Creates an image list
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bool wxImageList::Create(int width, int height, bool mask, int initial)
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{
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UINT flags = 0;
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// set appropriate color depth
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#ifdef __WXWINCE__
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flags |= ILC_COLOR;
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#else
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int dd = wxDisplayDepth();
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if (dd <= 4) flags |= ILC_COLOR; // 16 color
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else if (dd <= 8) flags |= ILC_COLOR8; // 256 color
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else if (dd <= 16) flags |= ILC_COLOR16; // 64k hi-color
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else if (dd <= 24) flags |= ILC_COLOR24; // 16m truecolor
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else if (dd <= 32) flags |= ILC_COLOR32; // 16m truecolor
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#endif
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if ( mask )
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flags |= ILC_MASK;
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// Grow by 1, I guess this is reasonable behaviour most of the time
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m_hImageList = (WXHIMAGELIST) ImageList_Create(width, height, flags,
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initial, 1);
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if ( !m_hImageList )
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{
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wxLogLastError(wxT("ImageList_Create()"));
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}
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return m_hImageList != 0;
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}
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wxImageList::~wxImageList()
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{
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if ( m_hImageList )
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{
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ImageList_Destroy(GetHImageList());
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m_hImageList = 0;
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}
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}
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// ----------------------------------------------------------------------------
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// wxImageList attributes
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// ----------------------------------------------------------------------------
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// Returns the number of images in the image list.
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int wxImageList::GetImageCount() const
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{
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wxASSERT_MSG( m_hImageList, _T("invalid image list") );
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return ImageList_GetImageCount(GetHImageList());
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}
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// Returns the size (same for all images) of the images in the list
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bool wxImageList::GetSize(int WXUNUSED(index), int &width, int &height) const
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{
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wxASSERT_MSG( m_hImageList, _T("invalid image list") );
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return ImageList_GetIconSize(GetHImageList(), &width, &height) != 0;
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}
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// ----------------------------------------------------------------------------
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// wxImageList operations
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// ----------------------------------------------------------------------------
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// Adds a bitmap, and optionally a mask bitmap.
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// Note that wxImageList creates new bitmaps, so you may delete
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// 'bitmap' and 'mask'.
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int wxImageList::Add(const wxBitmap& bitmap, const wxBitmap& mask)
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{
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HBITMAP hbmpMask = GetMaskForImage(bitmap, mask);
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int index = ImageList_Add(GetHImageList(), GetHbitmapOf(bitmap), hbmpMask);
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if ( index == -1 )
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{
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wxLogError(_("Couldn't add an image to the image list."));
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}
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::DeleteObject(hbmpMask);
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return index;
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}
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// Adds a bitmap, using the specified colour to create the mask bitmap
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// Note that wxImageList creates new bitmaps, so you may delete
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// 'bitmap'.
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int wxImageList::Add(const wxBitmap& bitmap, const wxColour& maskColour)
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{
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int index = ImageList_AddMasked(GetHImageList(),
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GetHbitmapOf(bitmap),
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wxColourToRGB(maskColour));
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if ( index == -1 )
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{
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wxLogError(_("Couldn't add an image to the image list."));
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}
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return index;
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}
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// Adds a bitmap and mask from an icon.
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int wxImageList::Add(const wxIcon& icon)
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{
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int index = ImageList_AddIcon(GetHImageList(), GetHiconOf(icon));
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if ( index == -1 )
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{
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wxLogError(_("Couldn't add an image to the image list."));
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}
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return index;
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}
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// Replaces a bitmap, optionally passing a mask bitmap.
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// Note that wxImageList creates new bitmaps, so you may delete
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// 'bitmap' and 'mask'.
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bool wxImageList::Replace(int index,
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const wxBitmap& bitmap, const wxBitmap& mask)
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{
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HBITMAP hbmpMask = GetMaskForImage(bitmap, mask);
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bool ok = ImageList_Replace(GetHImageList(), index,
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GetHbitmapOf(bitmap), hbmpMask) != 0;
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if ( !ok )
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{
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wxLogLastError(wxT("ImageList_Replace()"));
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}
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::DeleteObject(hbmpMask);
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return ok;
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}
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// Replaces a bitmap and mask from an icon.
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bool wxImageList::Replace(int i, const wxIcon& icon)
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{
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bool ok = ImageList_ReplaceIcon(GetHImageList(), i, GetHiconOf(icon)) != -1;
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if ( !ok )
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{
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wxLogLastError(wxT("ImageList_ReplaceIcon()"));
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}
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return ok;
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}
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// Removes the image at the given index.
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bool wxImageList::Remove(int index)
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{
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bool ok = ImageList_Remove(GetHImageList(), index) != 0;
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if ( !ok )
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{
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wxLogLastError(wxT("ImageList_Remove()"));
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}
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return ok;
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}
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// Remove all images
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bool wxImageList::RemoveAll()
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{
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// don't use ImageList_RemoveAll() because mingw32 headers don't have it
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return Remove(-1);
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}
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// Draws the given image on a dc at the specified position.
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// If 'solidBackground' is true, Draw sets the image list background
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// colour to the background colour of the wxDC, to speed up
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// drawing by eliminating masked drawing where possible.
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bool wxImageList::Draw(int index,
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wxDC& dc,
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int x, int y,
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int flags,
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bool solidBackground)
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{
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HDC hDC = GetHdcOf(dc);
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wxCHECK_MSG( hDC, false, _T("invalid wxDC in wxImageList::Draw") );
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COLORREF clr = CLR_NONE; // transparent by default
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if ( solidBackground )
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{
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const wxBrush& brush = dc.GetBackground();
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if ( brush.Ok() )
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{
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clr = wxColourToRGB(brush.GetColour());
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}
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}
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ImageList_SetBkColor(GetHImageList(), clr);
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UINT style = 0;
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if ( flags & wxIMAGELIST_DRAW_NORMAL )
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style |= ILD_NORMAL;
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if ( flags & wxIMAGELIST_DRAW_TRANSPARENT )
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style |= ILD_TRANSPARENT;
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if ( flags & wxIMAGELIST_DRAW_SELECTED )
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style |= ILD_SELECTED;
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if ( flags & wxIMAGELIST_DRAW_FOCUSED )
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style |= ILD_FOCUS;
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bool ok = ImageList_Draw(GetHImageList(), index, hDC, x, y, style) != 0;
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if ( !ok )
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{
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wxLogLastError(wxT("ImageList_Draw()"));
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}
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return ok;
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}
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// Get the bitmap
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wxBitmap wxImageList::GetBitmap(int index) const
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{
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#if wxUSE_WXDIB
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int bmp_width = 0, bmp_height = 0;
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GetSize(index, bmp_width, bmp_height);
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wxBitmap bitmap(bmp_width, bmp_height);
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wxMemoryDC dc;
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dc.SelectObject(bitmap);
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// draw it the first time to find a suitable mask colour
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((wxImageList*)this)->Draw(index, dc, 0, 0, wxIMAGELIST_DRAW_TRANSPARENT);
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dc.SelectObject(wxNullBitmap);
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// find the suitable mask colour
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wxImage image = bitmap.ConvertToImage();
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unsigned char r = 0, g = 0, b = 0;
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image.FindFirstUnusedColour(&r, &g, &b);
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// redraw whole image and bitmap in the mask colour
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image.Create(bmp_width, bmp_height);
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image.Replace(0, 0, 0, r, g, b);
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bitmap = wxBitmap(image);
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// redraw icon over the mask colour to actually draw it
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dc.SelectObject(bitmap);
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((wxImageList*)this)->Draw(index, dc, 0, 0, wxIMAGELIST_DRAW_TRANSPARENT);
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dc.SelectObject(wxNullBitmap);
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// get the image, set the mask colour and convert back to get transparent bitmap
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image = bitmap.ConvertToImage();
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image.SetMaskColour(r, g, b);
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bitmap = wxBitmap(image);
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#else
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wxBitmap bitmap;
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#endif
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return bitmap;
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}
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// Get the icon
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wxIcon wxImageList::GetIcon(int index) const
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{
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HICON hIcon = ImageList_ExtractIcon(0, GetHImageList(), index);
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if (hIcon)
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{
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wxIcon icon;
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icon.SetHICON((WXHICON)hIcon);
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int iconW, iconH;
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GetSize(index, iconW, iconH);
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icon.SetSize(iconW, iconH);
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return icon;
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}
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else
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return wxNullIcon;
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}
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// ----------------------------------------------------------------------------
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// helpers
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// ----------------------------------------------------------------------------
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static HBITMAP GetMaskForImage(const wxBitmap& bitmap, const wxBitmap& mask)
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{
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#if wxUSE_IMAGE
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wxBitmap bitmapWithMask;
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#endif // wxUSE_IMAGE
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HBITMAP hbmpMask;
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wxMask *pMask;
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bool deleteMask = false;
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if ( mask.Ok() )
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{
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hbmpMask = GetHbitmapOf(mask);
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pMask = NULL;
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}
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else
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{
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pMask = bitmap.GetMask();
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#if wxUSE_IMAGE
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// check if we don't have alpha in this bitmap -- we can create a mask
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// from it (and we need to do it for the older systems which don't
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// support 32bpp bitmaps natively)
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if ( !pMask )
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{
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wxImage img(bitmap.ConvertToImage());
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if ( img.HasAlpha() )
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{
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img.ConvertAlphaToMask();
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bitmapWithMask = wxBitmap(img);
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pMask = bitmapWithMask.GetMask();
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}
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}
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#endif // wxUSE_IMAGE
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if ( !pMask )
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{
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// use the light grey count as transparent: the trouble here is
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// that the light grey might have been changed by Windows behind
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// our back, so use the standard colour map to get its real value
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wxCOLORMAP *cmap = wxGetStdColourMap();
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wxColour col;
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wxRGBToColour(col, cmap[wxSTD_COL_BTNFACE].from);
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pMask = new wxMask(bitmap, col);
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deleteMask = true;
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}
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hbmpMask = (HBITMAP)pMask->GetMaskBitmap();
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}
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// windows mask convention is opposite to the wxWidgets one
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HBITMAP hbmpMaskInv = wxInvertMask(hbmpMask);
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if ( deleteMask )
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{
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delete pMask;
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}
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return hbmpMaskInv;
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}
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