Leaked source code of windows server 2003
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//------------------------------------------------------------------------
//
// Microsoft Windows
// Copyright (C) Microsoft Corporation, 2000
//
// File: XBarGlyph.h
//
// Contents: image of an xBar pane
//
// Classes: CXBarGlyph
//
//------------------------------------------------------------------------
#include "priv.h"
#include "XBarGlyph.h"
#include "resource.h"
#include "tb_ids.h"
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
#define CX_SMALL_ICON 16
#define CX_LARGE_ICON 20
// These defines are zero-index offsets into the existing toolbar buttons
#define IBAR_ICON_FAVORITES 6
#define IBAR_ICON_SEARCH 5
#define IBAR_ICON_HISTORY 12
#define IBAR_ICON_EXPLORER 43
#define IBAR_ICON_DEFAULT 10
//------------------------------------------------------------------------
CXBarGlyph::CXBarGlyph()
: _hbmpColor(NULL),
_hbmpMask(NULL),
_fAlpha(FALSE),
_lWidth(0),
_lHeight(0)
{
}
//------------------------------------------------------------------------
CXBarGlyph::~CXBarGlyph()
{
DESTROY_OBJ_WITH_HANDLE(_hbmpColor, DeleteObject);
DESTROY_OBJ_WITH_HANDLE(_hbmpMask, DeleteObject);
}
//------------------------------------------------------------------------
HRESULT
CXBarGlyph::SetIcon(HICON hIcon, BOOL fAlpha)
{
DESTROY_OBJ_WITH_HANDLE(_hbmpColor, DeleteObject);
DESTROY_OBJ_WITH_HANDLE(_hbmpMask, DeleteObject);
if (hIcon == NULL) {
return E_INVALIDARG;
}
ICONINFO ii = {0};
if (GetIconInfo(hIcon, &ii))
{
_hbmpColor = ii.hbmColor;
_hbmpMask = ii.hbmMask;
_fAlpha = fAlpha;
_EnsureDimensions();
}
else {
return E_OUTOFMEMORY;
}
return S_OK;
}
//------------------------------------------------------------------------
HICON
CXBarGlyph::GetIcon(void)
{
ICONINFO ii = {0};
ii.fIcon = TRUE;
ii.hbmColor = _hbmpColor;
ii.hbmMask = _hbmpMask;
return CreateIconIndirect(&ii);
}
//------------------------------------------------------------------------
BOOL
CXBarGlyph::HaveGlyph(void)
{
return (_hbmpColor != NULL);
}
//------------------------------------------------------------------------
LONG
CXBarGlyph::GetWidth(void)
{
_EnsureDimensions();
return _lWidth;
}
//------------------------------------------------------------------------
LONG
CXBarGlyph::GetHeight(void)
{
_EnsureDimensions();
return _lHeight;
}
//------------------------------------------------------------------------
HRESULT
CXBarGlyph::LoadGlyphFile(LPCTSTR pszPath, BOOL fSmall)
{
// ISSUE/010304/davidjen could be smarter and make educated guess of file format by analyzing file name
// now we assume it's always an icon format
USES_CONVERSION;
HRESULT hr = E_FAIL;
if (pszPath && *pszPath)
{
CString strPath = pszPath;
HICON hIcon = NULL;
int nBmpIndex = PathParseIconLocation((LPWSTR)T2CW(strPath));
strPath.ReleaseBuffer();
CString strExpPath;
SHExpandEnvironmentStrings(strPath, strExpPath.GetBuffer(MAX_PATH), MAX_PATH);
strExpPath.ReleaseBuffer();
// If no resource id, assume it's an ico file
UINT cx = fSmall ? CX_SMALL_ICON : CX_LARGE_ICON;
if (nBmpIndex == 0)
{
hIcon = (HICON)LoadImage(0, strExpPath, IMAGE_ICON, cx, cx, LR_LOADFROMFILE);
}
if (hIcon == NULL)
{
// try loading as a embedded icon file
HINSTANCE hInst = LoadLibraryEx(strExpPath, NULL, LOAD_LIBRARY_AS_DATAFILE);
if (hInst)
{
hIcon = (HICON)LoadImage(hInst, MAKEINTRESOURCE(nBmpIndex), IMAGE_ICON, cx, cx, LR_DEFAULTCOLOR);
FreeLibrary(hInst);
}
}
if (hIcon != NULL)
{
// ISSUE/010304/davidjen
// assume that we only have non-alpha icons, could be smarter and look at bitmap
hr = SetIcon(hIcon, false);
}
}
else {
hr = E_INVALIDARG;
}
return hr;
}
//------------------------------------------------------------------------
HRESULT
CXBarGlyph::LoadDefaultGlyph(BOOL fSmall, BOOL fHot)
{
HRESULT hr = E_FAIL;
UINT id = ((SHGetCurColorRes() <= 8) ? IDB_IETOOLBAR: IDB_IETOOLBARHICOLOR);
id += (fSmall ? 2 : 0) + (fHot ? 1 : 0);
UINT cx = fSmall ? CX_SMALL_ICON : CX_LARGE_ICON;
// We should use a cached default icon, rather than repeatedly crafting the default icon ourselves
HICON hIcon = NULL;
HIMAGELIST himl = ImageList_LoadImage(HINST_THISDLL,
MAKEINTRESOURCE(id), cx, 0,
RGB(255, 0, 255),
IMAGE_BITMAP, LR_CREATEDIBSECTION);
if (himl)
{
hIcon = ImageList_GetIcon(himl, IBAR_ICON_DEFAULT, ILD_NORMAL);
hr = SetIcon(hIcon, false); // know that this is always non-alpha channel bitmap
ImageList_Destroy(himl);
}
return hr;
}
//------------------------------------------------------------------------
HRESULT
CXBarGlyph::Draw(HDC hdc, int x, int y)
{
if (_hbmpColor)
{
BITMAP bm;
GetObject(_hbmpColor, sizeof(bm), &bm);
if (_fAlpha && (bm.bmBitsPixel >= 32) && IsOS(OS_WHISTLERORGREATER))
{
DrawAlphaBitmap(hdc, x, y, GetWidth(), GetHeight(), _hbmpColor);
}
else
{
DrawTransparentBitmap(hdc, x, y, _hbmpColor, _hbmpMask);
}
}
else
{
return S_FALSE; // no glyph
}
return S_OK;
}
//------------------------------------------------------------------------
void
CXBarGlyph::_EnsureDimensions(void)
{
if (_hbmpColor == NULL)
{
_lWidth = _lHeight = 0;
return;
}
// update dimensions of glyph
if ((_lWidth <= 0) || (_lHeight <= 0))
{
BITMAP bm;
GetObject(_hbmpColor, sizeof(bm), &bm);
_lWidth = bm.bmWidth;
_lHeight = bm.bmHeight;
}
}