f6bcfd974e
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@7748 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
351 lines
9.7 KiB
C++
351 lines
9.7 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: $Id$
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// Copyright: (c) Julian Smart and Markus Holzem
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// Licence: wxWindows license
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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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#ifdef __GNUG__
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#pragma implementation "imaglist.h"
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#endif
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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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#if defined(__WIN95__)
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#ifndef WX_PRECOMP
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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 <stdio.h>
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#endif
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#include "wx/log.h"
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#include "wx/intl.h"
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#include "wx/msw/imaglist.h"
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#include "wx/msw/private.h"
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#if !defined(__GNUWIN32_OLD__) && !defined(__TWIN32__)
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#include <commctrl.h>
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#endif
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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 wxBitmap 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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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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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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wxBitmap bmpMask = GetMaskForImage(bitmap, mask);
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HBITMAP hbmpMask = wxInvertMask(GetHbitmapOf(bmpMask));
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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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#ifdef __TWIN32__
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wxFAIL_MSG(_T("ImageList_AddMasked not implemented in TWIN32"));
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return -1;
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#else
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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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#endif
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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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#ifdef __TWIN32__
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wxFAIL_MSG(_T("ImageList_Replace not implemented in TWIN32"));
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return FALSE;
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#else
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wxBitmap bmpMask = GetMaskForImage(bitmap, mask);
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HBITMAP hbmpMask = wxInvertMask(GetHbitmapOf(bmpMask));
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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_Add()"));
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}
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::DeleteObject(hbmpMask);
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return ok;
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#endif
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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)) != 0;
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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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#ifdef __TWIN32__
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wxFAIL_MSG(_T("ImageList_Replace not implemented in TWIN32"));
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return FALSE;
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#else
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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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#endif
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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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int count = ImageList_GetImageCount(GetHImageList());
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for ( int i = 0; i < count; i++ )
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{
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// the image indexes are shifted, so we should always remove the first
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// one
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(void)Remove(0);
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}
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return TRUE;
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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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#ifdef __TWIN32__
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wxFAIL_MSG(_T("ImageList_Replace not implemented in TWIN32"));
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return FALSE;
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#else
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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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wxBrush *brush = & dc.GetBackground();
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if ( brush && 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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#endif
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}
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// ----------------------------------------------------------------------------
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// helpers
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// ----------------------------------------------------------------------------
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static wxBitmap GetMaskForImage(const wxBitmap& bitmap, const wxBitmap& mask)
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{
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wxBitmap bmpMask;
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if ( mask.Ok() )
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{
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bmpMask = mask;
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}
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else
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{
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wxMask *pMask = bitmap.GetMask();
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if ( pMask )
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{
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bmpMask.SetHBITMAP(pMask->GetMaskBitmap());
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}
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}
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if ( !bmpMask.Ok() )
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{
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// create a non transparent mask - apparently, this is needed under
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// Win9x (it doesn't behave correctly if it's passed 0 mask)
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bmpMask.Create(bitmap.GetWidth(), bitmap.GetHeight(), 1);
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wxMemoryDC dcMem;
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dcMem.SelectObject(bmpMask);
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dcMem.Clear();
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dcMem.SelectObject(wxNullBitmap);
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}
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return bmpMask;
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}
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#endif // Win95
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