/////////////////////////////////////////////////////////////////////////////
-// Name: imaglist.cpp
-// Purpose: wxImageList
+// Name: src/msw/imaglist.cpp
+// Purpose: wxImageList implementation for Win32
// Author: Julian Smart
// Modified by:
// Created: 04/01/98
// RCS-ID: $Id$
-// Copyright: (c) Julian Smart and Markus Holzem
-// Licence: wxWindows license
+// Copyright: (c) Julian Smart
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#ifdef __GNUG__
-#pragma implementation "imaglist.h"
-#endif
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
-#pragma hdrstop
+ #pragma hdrstop
#endif
-#if defined(__WIN95__)
-
#ifndef WX_PRECOMP
-#include <stdio.h>
-#include "wx/setup.h"
-#include "wx/window.h"
-#include "wx/dcclient.h"
+ #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"
+ #include "wx/window.h"
+ #include "wx/icon.h"
+ #include "wx/dc.h"
+ #include "wx/string.h"
+ #include "wx/dcmemory.h"
+ #include "wx/intl.h"
+ #include "wx/log.h"
+ #include "wx/image.h"
+ #include <stdio.h>
#endif
-#include "wx/msw/imaglist.h"
+#include "wx/imaglist.h"
+#include "wx/dc.h"
+#include "wx/msw/dc.h"
+#include "wx/msw/dib.h"
#include "wx/msw/private.h"
-#ifndef __GNUWIN32__
-#include <commctrl.h>
-#endif
+// ----------------------------------------------------------------------------
+// wxWin macros
+// ----------------------------------------------------------------------------
-#if !USE_SHARED_LIBRARY
IMPLEMENT_DYNAMIC_CLASS(wxImageList, wxObject)
-#endif
-wxImageList::wxImageList(void)
+#define GetHImageList() ((HIMAGELIST)m_hImageList)
+
+// ----------------------------------------------------------------------------
+// private functions
+// ----------------------------------------------------------------------------
+
+// returns the mask if it's valid, otherwise the bitmap mask and, if it's not
+// valid neither, a "solid" mask (no transparent zones at all)
+static HBITMAP GetMaskForImage(const wxBitmap& bitmap, const wxBitmap& mask);
+
+// ============================================================================
+// implementation
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// wxImageList creation/destruction
+// ----------------------------------------------------------------------------
+
+wxImageList::wxImageList()
{
m_hImageList = 0;
}
-wxImageList::~wxImageList(void)
+// Creates an image list
+bool wxImageList::Create(int width, int height, bool mask, int initial)
{
- if ( m_hImageList )
- ImageList_Destroy((HIMAGELIST) m_hImageList);
- m_hImageList = 0;
+ UINT flags = 0;
+
+ // as we want to be able to use 32bpp bitmaps in the image lists, we always
+ // use ILC_COLOR32, even if the display resolution is less -- the system
+ // will make the best effort to show the bitmap if we do this resulting in
+ // quite acceptable display while using a lower depth ILC_COLOR constant
+ // (e.g. ILC_COLOR16) shows completely broken bitmaps
+#ifdef __WXWINCE__
+ flags |= ILC_COLOR;
+#else
+ flags |= ILC_COLOR32;
+#endif
+
+ if ( mask )
+ flags |= ILC_MASK;
+
+ // Grow by 1, I guess this is reasonable behaviour most of the time
+ m_hImageList = (WXHIMAGELIST) ImageList_Create(width, height, flags,
+ initial, 1);
+ if ( !m_hImageList )
+ {
+ wxLogLastError(wxT("ImageList_Create()"));
+ }
+
+ return m_hImageList != 0;
}
+wxImageList::~wxImageList()
+{
+ if ( m_hImageList )
+ {
+ ImageList_Destroy(GetHImageList());
+ m_hImageList = 0;
+ }
+}
-// Attributes
-////////////////////////////////////////////////////////////////////////////
+// ----------------------------------------------------------------------------
+// wxImageList attributes
+// ----------------------------------------------------------------------------
// Returns the number of images in the image list.
-int wxImageList::GetImageCount(void) const
+int wxImageList::GetImageCount() const
{
- return ImageList_GetImageCount((HIMAGELIST) m_hImageList);
-}
+ wxASSERT_MSG( m_hImageList, wxT("invalid image list") );
-// Operations
-////////////////////////////////////////////////////////////////////////////
+ return ImageList_GetImageCount(GetHImageList());
+}
-// Creates an image list
-bool wxImageList::Create(const int width, const int height, const bool mask, const int initial)
+// Returns the size (same for all images) of the images in the list
+bool wxImageList::GetSize(int WXUNUSED(index), int &width, int &height) const
{
- UINT flags = 0;
- if ( mask )
- flags |= ILC_MASK;
+ wxASSERT_MSG( m_hImageList, wxT("invalid image list") );
- // Grow by 1, I guess this is reasonable behaviour most of the time
- m_hImageList = (WXHIMAGELIST) ImageList_Create(width, height, flags, initial, 1);
- return (m_hImageList != 0);
+ return ImageList_GetIconSize(GetHImageList(), &width, &height) != 0;
}
+// ----------------------------------------------------------------------------
+// wxImageList operations
+// ----------------------------------------------------------------------------
+
// Adds a bitmap, and optionally a mask bitmap.
// Note that wxImageList creates new bitmaps, so you may delete
// 'bitmap' and 'mask'.
int wxImageList::Add(const wxBitmap& bitmap, const wxBitmap& mask)
{
- HBITMAP hBitmap1 = (HBITMAP) bitmap.GetHBITMAP();
- HBITMAP hBitmap2 = 0;
- if ( mask.Ok() )
- hBitmap2 = (HBITMAP) mask.GetHBITMAP();
- return ImageList_Add((HIMAGELIST) GetHIMAGELIST(), hBitmap1, hBitmap2);
+ HBITMAP hbmp;
+
+#if wxUSE_WXDIB && wxUSE_IMAGE
+ // wxBitmap normally stores alpha in pre-multiplied format but
+ // ImageList_Draw() does pre-multiplication internally so we need to undo
+ // the pre-multiplication here. Converting back and forth like this is, of
+ // course, very inefficient but it's better than wrong appearance so we do
+ // this for now until a better way can be found.
+ AutoHBITMAP hbmpRelease;
+ if ( bitmap.HasAlpha() )
+ {
+ hbmp = wxDIB(bitmap.ConvertToImage(),
+ wxDIB::PixelFormat_NotPreMultiplied).Detach();
+ hbmpRelease.Init(hbmp);
+ }
+ else
+#endif // wxUSE_WXDIB && wxUSE_IMAGE
+ hbmp = GetHbitmapOf(bitmap);
+
+ AutoHBITMAP hbmpMask(GetMaskForImage(bitmap, mask));
+
+ int index = ImageList_Add(GetHImageList(), hbmp, hbmpMask);
+ if ( index == -1 )
+ {
+ wxLogError(_("Couldn't add an image to the image list."));
+ }
+
+ return index;
}
// Adds a bitmap, using the specified colour to create the mask bitmap
// 'bitmap'.
int wxImageList::Add(const wxBitmap& bitmap, const wxColour& maskColour)
{
- HBITMAP hBitmap1 = (HBITMAP) bitmap.GetHBITMAP();
- COLORREF colorRef = PALETTERGB(maskColour.Red(), maskColour.Green(), maskColour.Blue());
- return ImageList_AddMasked((HIMAGELIST) GetHIMAGELIST(), hBitmap1, colorRef);
+ HBITMAP hbmp;
+
+#if wxUSE_WXDIB && wxUSE_IMAGE
+ // See the comment in overloaded Add() above.
+ AutoHBITMAP hbmpRelease;
+ if ( bitmap.HasAlpha() )
+ {
+ hbmp = wxDIB(bitmap.ConvertToImage(),
+ wxDIB::PixelFormat_NotPreMultiplied).Detach();
+ hbmpRelease.Init(hbmp);
+ }
+ else
+#endif // wxUSE_WXDIB && wxUSE_IMAGE
+ hbmp = GetHbitmapOf(bitmap);
+
+ int index = ImageList_AddMasked(GetHImageList(),
+ hbmp,
+ wxColourToRGB(maskColour));
+ if ( index == -1 )
+ {
+ wxLogError(_("Couldn't add an image to the image list."));
+ }
+
+ return index;
}
// Adds a bitmap and mask from an icon.
int wxImageList::Add(const wxIcon& icon)
{
- HICON hIcon = (HICON) icon.GetHICON();
- return ImageList_AddIcon((HIMAGELIST) GetHIMAGELIST(), hIcon);
+ int index = ImageList_AddIcon(GetHImageList(), GetHiconOf(icon));
+ if ( index == -1 )
+ {
+ wxLogError(_("Couldn't add an image to the image list."));
+ }
+
+ return index;
}
// Replaces a bitmap, optionally passing a mask bitmap.
// Note that wxImageList creates new bitmaps, so you may delete
// 'bitmap' and 'mask'.
-bool wxImageList::Replace(const int index, const wxBitmap& bitmap, const wxBitmap& mask)
+bool wxImageList::Replace(int index,
+ const wxBitmap& bitmap,
+ const wxBitmap& mask)
{
- HBITMAP hBitmap1 = (HBITMAP) bitmap.GetHBITMAP();
- HBITMAP hBitmap2 = 0;
- if ( mask.Ok() )
- hBitmap2 = (HBITMAP) mask.GetHBITMAP();
- return (ImageList_Replace((HIMAGELIST) GetHIMAGELIST(), index, hBitmap1, hBitmap2) != 0);
-}
+ HBITMAP hbmp;
-/* Not supported by Win95
-// Replacing a bitmap, using the specified colour to create the mask bitmap
-// Note that wxImageList creates new bitmaps, so you may delete
-// 'bitmap'.
-bool wxImageList::Replace(const int index, const wxBitmap& bitmap, const wxColour& maskColour)
-{
- HBITMAP hBitmap1 = (HBITMAP) bitmap.GetHBITMAP();
- COLORREF colorRef = PALETTERGB(maskColour.Red(), maskColour.Green(), maskColour.Blue());
- return (bool) ImageList_ReplaceMasked((HIMAGELIST) GetHIMAGELIST(), index, hBitmap1, colorRef);
+#if wxUSE_WXDIB && wxUSE_IMAGE
+ // See the comment in Add() above.
+ AutoHBITMAP hbmpRelease;
+ if ( bitmap.HasAlpha() )
+ {
+ hbmp = wxDIB(bitmap.ConvertToImage(),
+ wxDIB::PixelFormat_NotPreMultiplied).Detach();
+ hbmpRelease.Init(hbmp);
+ }
+ else
+#endif // wxUSE_WXDIB && wxUSE_IMAGE
+ hbmp = GetHbitmapOf(bitmap);
+
+ AutoHBITMAP hbmpMask(GetMaskForImage(bitmap, mask));
+
+ if ( !ImageList_Replace(GetHImageList(), index, hbmp, hbmpMask) )
+ {
+ wxLogLastError(wxT("ImageList_Replace()"));
+ return false;
+ }
+
+ return true;
}
-*/
// Replaces a bitmap and mask from an icon.
-bool wxImageList::Replace(const int index, const wxIcon& icon)
+bool wxImageList::Replace(int i, const wxIcon& icon)
{
- HICON hIcon = (HICON) icon.GetHICON();
- return (ImageList_ReplaceIcon((HIMAGELIST) GetHIMAGELIST(), index, hIcon) != 0);
+ bool ok = ImageList_ReplaceIcon(GetHImageList(), i, GetHiconOf(icon)) != -1;
+ if ( !ok )
+ {
+ wxLogLastError(wxT("ImageList_ReplaceIcon()"));
+ }
+
+ return ok;
}
// Removes the image at the given index.
-bool wxImageList::Remove(const int index)
+bool wxImageList::Remove(int index)
{
- return (ImageList_Remove((HIMAGELIST) GetHIMAGELIST(), index) != 0);
+ bool ok = ImageList_Remove(GetHImageList(), index) != 0;
+ if ( !ok )
+ {
+ wxLogLastError(wxT("ImageList_Remove()"));
+ }
+
+ return ok;
}
// Remove all images
-bool wxImageList::RemoveAll(void)
+bool wxImageList::RemoveAll()
{
- // TODO: Is this correct?
- while ( GetImageCount() > 0 )
- {
- Remove(0);
- }
- return TRUE;
+ // don't use ImageList_RemoveAll() because mingw32 headers don't have it
+ return Remove(-1);
}
// Draws the given image on a dc at the specified position.
-// If 'solidBackground' is TRUE, Draw sets the image list background
+// If 'solidBackground' is true, Draw sets the image list background
// colour to the background colour of the wxDC, to speed up
// drawing by eliminating masked drawing where possible.
-bool wxImageList::Draw(const int index, wxDC& dc, const int x, const int y,
- const int flags, const bool solidBackground)
-{
- HDC hDC = (HDC) dc.GetHDC();
- if ( !hDC )
- return FALSE;
-
- if ( solidBackground )
- {
- wxBrush *brush = dc.GetBackground();
- if ( brush && brush->Ok())
- {
- wxColour col(brush->GetColour());
- ImageList_SetBkColor((HIMAGELIST) GetHIMAGELIST(),
- PALETTERGB(col.Red(), col.Green(), col.Blue()));
- }
- else
- ImageList_SetBkColor((HIMAGELIST) GetHIMAGELIST(),
- CLR_NONE);
- }
- else
- ImageList_SetBkColor((HIMAGELIST) GetHIMAGELIST(),
- CLR_NONE);
+bool wxImageList::Draw(int index,
+ wxDC& dc,
+ int x, int y,
+ int flags,
+ bool solidBackground)
+{
+ wxDCImpl *impl = dc.GetImpl();
+ wxMSWDCImpl *msw_impl = wxDynamicCast( impl, wxMSWDCImpl );
+ if (!msw_impl)
+ return false;
+
+ HDC hDC = GetHdcOf(*msw_impl);
+ wxCHECK_MSG( hDC, false, wxT("invalid wxDC in wxImageList::Draw") );
+
+ COLORREF clr = CLR_NONE; // transparent by default
+ if ( solidBackground )
+ {
+ const wxBrush& brush = dc.GetBackground();
+ if ( brush.IsOk() )
+ {
+ clr = wxColourToRGB(brush.GetColour());
+ }
+ }
+
+ ImageList_SetBkColor(GetHImageList(), clr);
UINT style = 0;
- if ( flags & wxIMAGELIST_DRAW_NORMAL )
- style |= ILD_NORMAL;
- if ( flags & wxIMAGELIST_DRAW_TRANSPARENT )
- style |= ILD_TRANSPARENT;
- if ( flags & wxIMAGELIST_DRAW_SELECTED )
- style |= ILD_SELECTED;
- if ( flags & wxIMAGELIST_DRAW_FOCUSED )
- style |= ILD_FOCUS;
+ if ( flags & wxIMAGELIST_DRAW_NORMAL )
+ style |= ILD_NORMAL;
+ if ( flags & wxIMAGELIST_DRAW_TRANSPARENT )
+ style |= ILD_TRANSPARENT;
+ if ( flags & wxIMAGELIST_DRAW_SELECTED )
+ style |= ILD_SELECTED;
+ if ( flags & wxIMAGELIST_DRAW_FOCUSED )
+ style |= ILD_FOCUS;
+
+ bool ok = ImageList_Draw(GetHImageList(), index, hDC, x, y, style) != 0;
+ if ( !ok )
+ {
+ wxLogLastError(wxT("ImageList_Draw()"));
+ }
- return (ImageList_Draw((HIMAGELIST) GetHIMAGELIST(), index, hDC,
- x, y, style) != 0);
+ return ok;
}
+// Get the bitmap
+wxBitmap wxImageList::GetBitmap(int index) const
+{
+#if wxUSE_WXDIB && wxUSE_IMAGE
+ int bmp_width = 0, bmp_height = 0;
+ GetSize(index, bmp_width, bmp_height);
+
+ wxBitmap bitmap(bmp_width, bmp_height);
+ wxMemoryDC dc;
+ dc.SelectObject(bitmap);
+
+ // draw it the first time to find a suitable mask colour
+ ((wxImageList*)this)->Draw(index, dc, 0, 0, wxIMAGELIST_DRAW_TRANSPARENT);
+ dc.SelectObject(wxNullBitmap);
+
+ // find the suitable mask colour
+ wxImage image = bitmap.ConvertToImage();
+ unsigned char r = 0, g = 0, b = 0;
+ image.FindFirstUnusedColour(&r, &g, &b);
+
+ // redraw whole image and bitmap in the mask colour
+ image.Create(bmp_width, bmp_height);
+ image.Replace(0, 0, 0, r, g, b);
+ bitmap = wxBitmap(image);
+
+ // redraw icon over the mask colour to actually draw it
+ dc.SelectObject(bitmap);
+ ((wxImageList*)this)->Draw(index, dc, 0, 0, wxIMAGELIST_DRAW_TRANSPARENT);
+ dc.SelectObject(wxNullBitmap);
+
+ // get the image, set the mask colour and convert back to get transparent bitmap
+ image = bitmap.ConvertToImage();
+ image.SetMaskColour(r, g, b);
+ bitmap = wxBitmap(image);
+#else
+ wxBitmap bitmap;
#endif
+ return bitmap;
+}
+// Get the icon
+wxIcon wxImageList::GetIcon(int index) const
+{
+ HICON hIcon = ImageList_ExtractIcon(0, GetHImageList(), index);
+ if (hIcon)
+ {
+ wxIcon icon;
+ icon.SetHICON((WXHICON)hIcon);
+
+ int iconW, iconH;
+ GetSize(index, iconW, iconH);
+ icon.SetSize(iconW, iconH);
+
+ return icon;
+ }
+ else
+ return wxNullIcon;
+}
+
+// ----------------------------------------------------------------------------
+// helpers
+// ----------------------------------------------------------------------------
+
+static HBITMAP GetMaskForImage(const wxBitmap& bitmap, const wxBitmap& mask)
+{
+#if wxUSE_IMAGE
+ wxBitmap bitmapWithMask;
+#endif // wxUSE_IMAGE
+
+ HBITMAP hbmpMask;
+ wxMask *pMask;
+ bool deleteMask = false;
+
+ if ( mask.IsOk() )
+ {
+ hbmpMask = GetHbitmapOf(mask);
+ pMask = NULL;
+ }
+ else
+ {
+ pMask = bitmap.GetMask();
+
+#if wxUSE_IMAGE
+ // check if we don't have alpha in this bitmap -- we can create a mask
+ // from it (and we need to do it for the older systems which don't
+ // support 32bpp bitmaps natively)
+ if ( !pMask )
+ {
+ wxImage img(bitmap.ConvertToImage());
+ if ( img.HasAlpha() )
+ {
+ img.ConvertAlphaToMask();
+ bitmapWithMask = wxBitmap(img);
+ pMask = bitmapWithMask.GetMask();
+ }
+ }
+#endif // wxUSE_IMAGE
+
+ if ( !pMask )
+ {
+ // use the light grey count as transparent: the trouble here is
+ // that the light grey might have been changed by Windows behind
+ // our back, so use the standard colour map to get its real value
+ wxCOLORMAP *cmap = wxGetStdColourMap();
+ wxColour col;
+ wxRGBToColour(col, cmap[wxSTD_COL_BTNFACE].from);
+
+ pMask = new wxMask(bitmap, col);
+
+ deleteMask = true;
+ }
+
+ hbmpMask = (HBITMAP)pMask->GetMaskBitmap();
+ }
+
+ // windows mask convention is opposite to the wxWidgets one
+ HBITMAP hbmpMaskInv = wxInvertMask(hbmpMask);
+
+ if ( deleteMask )
+ {
+ delete pMask;
+ }
+
+ return hbmpMaskInv;
+}
projects / wxWidgets.git / blobdiff