qt6-bb10/src/plugins/platforms/windows/qwindowstheme.cpp

818 lines
29 KiB
C++

/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
// SHSTOCKICONINFO is only available since Vista
#if _WIN32_WINNT < 0x0600
# undef _WIN32_WINNT
# define _WIN32_WINNT 0x0600
#endif
#include "qwindowstheme.h"
#include "qwindowsdialoghelpers.h"
#include "qwindowscontext.h"
#include "qwindowsintegration.h"
#include "qt_windows.h"
#include "qwindowsfontdatabase.h"
#ifdef Q_OS_WINCE
# include "qplatformfunctions_wince.h"
# include "winuser.h"
#else
# include <commctrl.h>
# include <objbase.h>
# ifndef Q_CC_MINGW
# include <commoncontrols.h>
# endif
# include <shellapi.h>
#endif
#include <QtCore/QVariant>
#include <QtCore/QCoreApplication>
#include <QtCore/QDebug>
#include <QtCore/QTextStream>
#include <QtCore/QSysInfo>
#include <QtCore/QCache>
#include <QtGui/QColor>
#include <QtGui/QPalette>
#include <QtGui/QGuiApplication>
#include <QtGui/QPainter>
#include <QtGui/QPixmapCache>
#include <qpa/qwindowsysteminterface.h>
#include <private/qhighdpiscaling_p.h>
#include <private/qsystemlibrary_p.h>
#include <algorithm>
#if defined(__IImageList_INTERFACE_DEFINED__) && defined(__IID_DEFINED__)
# define USE_IIMAGELIST
#endif
QT_BEGIN_NAMESPACE
static inline QColor COLORREFToQColor(COLORREF cr)
{
return QColor(GetRValue(cr), GetGValue(cr), GetBValue(cr));
}
static inline QTextStream& operator<<(QTextStream &str, const QColor &c)
{
str.setIntegerBase(16);
str.setFieldWidth(2);
str.setPadChar(QLatin1Char('0'));
str << " rgb: #" << c.red() << c.green() << c.blue();
str.setIntegerBase(10);
str.setFieldWidth(0);
return str;
}
static inline bool booleanSystemParametersInfo(UINT what, bool defaultValue)
{
BOOL result;
if (SystemParametersInfo(what, 0, &result, 0))
return result ? true : false;
return defaultValue;
}
static inline DWORD dWordSystemParametersInfo(UINT what, DWORD defaultValue)
{
DWORD result;
if (SystemParametersInfo(what, 0, &result, 0))
return result;
return defaultValue;
}
static inline QColor mixColors(const QColor &c1, const QColor &c2)
{
return QColor ((c1.red() + c2.red()) / 2,
(c1.green() + c2.green()) / 2,
(c1.blue() + c2.blue()) / 2);
}
static inline QColor getSysColor(int index)
{
return COLORREFToQColor(GetSysColor(index));
}
#ifndef QT_NO_WINCE_SHELLSDK
// QTBUG-48823/Windows 10: SHGetFileInfo() (as called by item views on file system
// models has been observed to trigger a WM_PAINT on the mainwindow. Suppress the
// behavior by running it in a thread.
class ShGetFileInfoFunction
{
public:
explicit ShGetFileInfoFunction(const wchar_t *fn, DWORD a, SHFILEINFO *i, UINT f, bool *r) :
m_fileName(fn), m_attributes(a), m_flags(f), m_info(i), m_result(r) {}
void operator()() const { *m_result = SHGetFileInfo(m_fileName, m_attributes, m_info, sizeof(SHFILEINFO), m_flags); }
private:
const wchar_t *m_fileName;
const DWORD m_attributes;
const UINT m_flags;
SHFILEINFO *const m_info;
bool *m_result;
};
static bool shGetFileInfoBackground(QWindowsThreadPoolRunner &r,
const wchar_t *fileName, DWORD attributes,
SHFILEINFO *info, UINT flags,
unsigned long timeOutMSecs = 5000)
{
bool result = false;
if (!r.run(ShGetFileInfoFunction(fileName, attributes, info, flags, &result), timeOutMSecs)) {
qWarning().noquote() << "ShGetFileInfoBackground() timed out for "
<< QString::fromWCharArray(fileName);
return false;
}
return result;
}
#endif // !QT_NO_WINCE_SHELLSDK
// from QStyle::standardPalette
static inline QPalette standardPalette()
{
QColor backgroundColor(0xd4, 0xd0, 0xc8); // win 2000 grey
QColor lightColor(backgroundColor.lighter());
QColor darkColor(backgroundColor.darker());
const QBrush darkBrush(darkColor);
QColor midColor(Qt::gray);
QPalette palette(Qt::black, backgroundColor, lightColor, darkColor,
midColor, Qt::black, Qt::white);
palette.setBrush(QPalette::Disabled, QPalette::WindowText, darkBrush);
palette.setBrush(QPalette::Disabled, QPalette::Text, darkBrush);
palette.setBrush(QPalette::Disabled, QPalette::ButtonText, darkBrush);
palette.setBrush(QPalette::Disabled, QPalette::Base, QBrush(backgroundColor));
return palette;
}
static inline QPalette systemPalette()
{
QPalette result = standardPalette();
result.setColor(QPalette::WindowText, getSysColor(COLOR_WINDOWTEXT));
result.setColor(QPalette::Button, getSysColor(COLOR_BTNFACE));
result.setColor(QPalette::Light, getSysColor(COLOR_BTNHIGHLIGHT));
result.setColor(QPalette::Dark, getSysColor(COLOR_BTNSHADOW));
result.setColor(QPalette::Mid, result.button().color().darker(150));
result.setColor(QPalette::Text, getSysColor(COLOR_WINDOWTEXT));
result.setColor(QPalette::BrightText, getSysColor(COLOR_BTNHIGHLIGHT));
result.setColor(QPalette::Base, getSysColor(COLOR_WINDOW));
result.setColor(QPalette::Window, getSysColor(COLOR_BTNFACE));
result.setColor(QPalette::ButtonText, getSysColor(COLOR_BTNTEXT));
result.setColor(QPalette::Midlight, getSysColor(COLOR_3DLIGHT));
result.setColor(QPalette::Shadow, getSysColor(COLOR_3DDKSHADOW));
result.setColor(QPalette::Highlight, getSysColor(COLOR_HIGHLIGHT));
result.setColor(QPalette::HighlightedText, getSysColor(COLOR_HIGHLIGHTTEXT));
result.setColor(QPalette::Link, Qt::blue);
result.setColor(QPalette::LinkVisited, Qt::magenta);
result.setColor(QPalette::Inactive, QPalette::Button, result.button().color());
result.setColor(QPalette::Inactive, QPalette::Window, result.background().color());
result.setColor(QPalette::Inactive, QPalette::Light, result.light().color());
result.setColor(QPalette::Inactive, QPalette::Dark, result.dark().color());
if (result.midlight() == result.button())
result.setColor(QPalette::Midlight, result.button().color().lighter(110));
if (result.background() != result.base()) {
result.setColor(QPalette::Inactive, QPalette::Highlight, result.color(QPalette::Inactive, QPalette::Window));
result.setColor(QPalette::Inactive, QPalette::HighlightedText, result.color(QPalette::Inactive, QPalette::Text));
}
const QColor disabled =
mixColors(result.foreground().color(), result.button().color());
result.setColorGroup(QPalette::Disabled, result.foreground(), result.button(),
result.light(), result.dark(), result.mid(),
result.text(), result.brightText(), result.base(),
result.background());
result.setColor(QPalette::Disabled, QPalette::WindowText, disabled);
result.setColor(QPalette::Disabled, QPalette::Text, disabled);
result.setColor(QPalette::Disabled, QPalette::ButtonText, disabled);
result.setColor(QPalette::Disabled, QPalette::Highlight,
getSysColor(COLOR_HIGHLIGHT));
result.setColor(QPalette::Disabled, QPalette::HighlightedText,
getSysColor(COLOR_HIGHLIGHTTEXT));
result.setColor(QPalette::Disabled, QPalette::Base,
result.background().color());
return result;
}
static inline QPalette toolTipPalette(const QPalette &systemPalette)
{
QPalette result(systemPalette);
const QColor tipBgColor(getSysColor(COLOR_INFOBK));
const QColor tipTextColor(getSysColor(COLOR_INFOTEXT));
result.setColor(QPalette::All, QPalette::Button, tipBgColor);
result.setColor(QPalette::All, QPalette::Window, tipBgColor);
result.setColor(QPalette::All, QPalette::Text, tipTextColor);
result.setColor(QPalette::All, QPalette::WindowText, tipTextColor);
result.setColor(QPalette::All, QPalette::ButtonText, tipTextColor);
result.setColor(QPalette::All, QPalette::Button, tipBgColor);
result.setColor(QPalette::All, QPalette::Window, tipBgColor);
result.setColor(QPalette::All, QPalette::Text, tipTextColor);
result.setColor(QPalette::All, QPalette::WindowText, tipTextColor);
result.setColor(QPalette::All, QPalette::ButtonText, tipTextColor);
result.setColor(QPalette::All, QPalette::ToolTipBase, tipBgColor);
result.setColor(QPalette::All, QPalette::ToolTipText, tipTextColor);
const QColor disabled =
mixColors(result.foreground().color(), result.button().color());
result.setColor(QPalette::Disabled, QPalette::WindowText, disabled);
result.setColor(QPalette::Disabled, QPalette::Text, disabled);
result.setColor(QPalette::Disabled, QPalette::ToolTipText, disabled);
result.setColor(QPalette::Disabled, QPalette::Base, Qt::white);
result.setColor(QPalette::Disabled, QPalette::BrightText, Qt::white);
result.setColor(QPalette::Disabled, QPalette::ToolTipBase, Qt::white);
return result;
}
static inline QPalette menuPalette(const QPalette &systemPalette)
{
QPalette result(systemPalette);
const QColor menuColor(getSysColor(COLOR_MENU));
const QColor menuTextColor(getSysColor(COLOR_MENUTEXT));
const QColor disabled(getSysColor(COLOR_GRAYTEXT));
// we might need a special color group for the result.
result.setColor(QPalette::Active, QPalette::Button, menuColor);
result.setColor(QPalette::Active, QPalette::Text, menuTextColor);
result.setColor(QPalette::Active, QPalette::WindowText, menuTextColor);
result.setColor(QPalette::Active, QPalette::ButtonText, menuTextColor);
result.setColor(QPalette::Disabled, QPalette::WindowText, disabled);
result.setColor(QPalette::Disabled, QPalette::Text, disabled);
#ifndef Q_OS_WINCE
const bool isFlat = booleanSystemParametersInfo(SPI_GETFLATMENU, false);
result.setColor(QPalette::Disabled, QPalette::Highlight,
getSysColor(isFlat ? COLOR_MENUHILIGHT : COLOR_HIGHLIGHT));
#else
result.setColor(QPalette::Disabled, QPalette::Highlight,
getSysColor(COLOR_HIGHLIGHT));
#endif
result.setColor(QPalette::Disabled, QPalette::HighlightedText, disabled);
result.setColor(QPalette::Disabled, QPalette::Button,
result.color(QPalette::Active, QPalette::Button));
result.setColor(QPalette::Inactive, QPalette::Button,
result.color(QPalette::Active, QPalette::Button));
result.setColor(QPalette::Inactive, QPalette::Text,
result.color(QPalette::Active, QPalette::Text));
result.setColor(QPalette::Inactive, QPalette::WindowText,
result.color(QPalette::Active, QPalette::WindowText));
result.setColor(QPalette::Inactive, QPalette::ButtonText,
result.color(QPalette::Active, QPalette::ButtonText));
result.setColor(QPalette::Inactive, QPalette::Highlight,
result.color(QPalette::Active, QPalette::Highlight));
result.setColor(QPalette::Inactive, QPalette::HighlightedText,
result.color(QPalette::Active, QPalette::HighlightedText));
result.setColor(QPalette::Inactive, QPalette::ButtonText,
systemPalette.color(QPalette::Inactive, QPalette::Dark));
return result;
}
static inline QPalette *menuBarPalette(const QPalette &menuPalette)
{
QPalette *result = 0;
if (booleanSystemParametersInfo(SPI_GETFLATMENU, false)) {
result = new QPalette(menuPalette);
#ifndef Q_OS_WINCE
const QColor menubar(getSysColor(COLOR_MENUBAR));
#else
const QColor menubar(getSysColor(COLOR_MENU));
#endif
result->setColor(QPalette::Active, QPalette::Button, menubar);
result->setColor(QPalette::Disabled, QPalette::Button, menubar);
result->setColor(QPalette::Inactive, QPalette::Button, menubar);
}
return result;
}
const char *QWindowsTheme::name = "windows";
QWindowsTheme *QWindowsTheme::m_instance = 0;
QWindowsTheme::QWindowsTheme()
{
m_instance = this;
std::fill(m_fonts, m_fonts + NFonts, static_cast<QFont *>(0));
std::fill(m_palettes, m_palettes + NPalettes, static_cast<QPalette *>(0));
refresh();
}
QWindowsTheme::~QWindowsTheme()
{
clearPalettes();
clearFonts();
m_instance = 0;
}
static inline QStringList iconThemeSearchPaths()
{
const QFileInfo appDir(QCoreApplication::applicationDirPath() + QStringLiteral("/icons"));
return appDir.isDir() ? QStringList(appDir.absoluteFilePath()) : QStringList();
}
static inline QStringList styleNames()
{
QStringList result;
if (QSysInfo::WindowsVersion >= QSysInfo::WV_VISTA)
result.append(QStringLiteral("WindowsVista"));
if (QSysInfo::WindowsVersion >= QSysInfo::WV_XP)
result.append(QStringLiteral("WindowsXP"));
result.append(QStringLiteral("Windows"));
return result;
}
static inline int uiEffects()
{
int result = 0;
if (booleanSystemParametersInfo(SPI_GETUIEFFECTS, false))
result |= QPlatformTheme::GeneralUiEffect;
if (booleanSystemParametersInfo(SPI_GETMENUANIMATION, false))
result |= QPlatformTheme::AnimateMenuUiEffect;
if (booleanSystemParametersInfo(SPI_GETMENUFADE, false))
result |= QPlatformTheme::FadeMenuUiEffect;
if (booleanSystemParametersInfo(SPI_GETCOMBOBOXANIMATION, false))
result |= QPlatformTheme::AnimateComboUiEffect;
if (booleanSystemParametersInfo(SPI_GETTOOLTIPANIMATION, false))
result |= QPlatformTheme::AnimateTooltipUiEffect;
return result;
}
QVariant QWindowsTheme::themeHint(ThemeHint hint) const
{
switch (hint) {
case UseFullScreenForPopupMenu:
return QVariant(true);
case DialogButtonBoxLayout:
return QVariant(QPlatformDialogHelper::WinLayout);
case IconThemeSearchPaths:
return QVariant(iconThemeSearchPaths());
case StyleNames:
return QVariant(styleNames());
#ifndef Q_OS_WINCE
case TextCursorWidth:
return QVariant(int(dWordSystemParametersInfo(SPI_GETCARETWIDTH, 1u)));
case DropShadow:
return QVariant(booleanSystemParametersInfo(SPI_GETDROPSHADOW, false));
#endif // !Q_OS_WINCE
case MaximumScrollBarDragDistance:
return QVariant(qRound(qreal(QWindowsContext::instance()->defaultDPI()) * 1.375));
case KeyboardScheme:
return QVariant(int(WindowsKeyboardScheme));
case UiEffects:
return QVariant(uiEffects());
case IconPixmapSizes: {
QList<int> sizes;
sizes << 16 << 32;
#ifdef USE_IIMAGELIST
sizes << 48; // sHIL_EXTRALARGE
if (QSysInfo::WindowsVersion >= QSysInfo::WV_VISTA)
sizes << 256; // SHIL_JUMBO
#endif // USE_IIMAGELIST
return QVariant::fromValue(sizes);
}
case DialogSnapToDefaultButton:
return QVariant(booleanSystemParametersInfo(SPI_GETSNAPTODEFBUTTON, false));
case ContextMenuOnMouseRelease:
return QVariant(true);
case WheelScrollLines:
return QVariant(int(dWordSystemParametersInfo(SPI_GETWHEELSCROLLLINES, 3)));
default:
break;
}
return QPlatformTheme::themeHint(hint);
}
void QWindowsTheme::clearPalettes()
{
qDeleteAll(m_palettes, m_palettes + NPalettes);
std::fill(m_palettes, m_palettes + NPalettes, static_cast<QPalette *>(0));
}
void QWindowsTheme::refreshPalettes()
{
if (!QGuiApplication::desktopSettingsAware())
return;
m_palettes[SystemPalette] = new QPalette(systemPalette());
m_palettes[ToolTipPalette] = new QPalette(toolTipPalette(*m_palettes[SystemPalette]));
m_palettes[MenuPalette] = new QPalette(menuPalette(*m_palettes[SystemPalette]));
m_palettes[MenuBarPalette] = menuBarPalette(*m_palettes[MenuPalette]);
}
void QWindowsTheme::clearFonts()
{
qDeleteAll(m_fonts, m_fonts + NFonts);
std::fill(m_fonts, m_fonts + NFonts, static_cast<QFont *>(0));
}
void QWindowsTheme::refreshFonts()
{
#ifndef Q_OS_WINCE // ALL THIS FUNCTIONALITY IS MISSING ON WINCE
clearFonts();
if (!QGuiApplication::desktopSettingsAware())
return;
NONCLIENTMETRICS ncm;
ncm.cbSize = FIELD_OFFSET(NONCLIENTMETRICS, lfMessageFont) + sizeof(LOGFONT);
SystemParametersInfo(SPI_GETNONCLIENTMETRICS, ncm.cbSize , &ncm, 0);
const QFont menuFont = QWindowsFontDatabase::LOGFONT_to_QFont(ncm.lfMenuFont);
const QFont messageBoxFont = QWindowsFontDatabase::LOGFONT_to_QFont(ncm.lfMessageFont);
const QFont statusFont = QWindowsFontDatabase::LOGFONT_to_QFont(ncm.lfStatusFont);
const QFont titleFont = QWindowsFontDatabase::LOGFONT_to_QFont(ncm.lfCaptionFont);
QFont fixedFont(QStringLiteral("Courier New"), messageBoxFont.pointSize());
fixedFont.setStyleHint(QFont::TypeWriter);
LOGFONT lfIconTitleFont;
SystemParametersInfo(SPI_GETICONTITLELOGFONT, sizeof(lfIconTitleFont), &lfIconTitleFont, 0);
const QFont iconTitleFont = QWindowsFontDatabase::LOGFONT_to_QFont(lfIconTitleFont);
m_fonts[SystemFont] = new QFont(QWindowsFontDatabase::systemDefaultFont());
m_fonts[MenuFont] = new QFont(menuFont);
m_fonts[MenuBarFont] = new QFont(menuFont);
m_fonts[MessageBoxFont] = new QFont(messageBoxFont);
m_fonts[TipLabelFont] = new QFont(statusFont);
m_fonts[StatusBarFont] = new QFont(statusFont);
m_fonts[MdiSubWindowTitleFont] = new QFont(titleFont);
m_fonts[DockWidgetTitleFont] = new QFont(titleFont);
m_fonts[ItemViewFont] = new QFont(iconTitleFont);
m_fonts[FixedFont] = new QFont(fixedFont);
#endif // !Q_OS_WINCE
}
bool QWindowsTheme::usePlatformNativeDialog(DialogType type) const
{
return QWindowsDialogs::useHelper(type);
}
QPlatformDialogHelper *QWindowsTheme::createPlatformDialogHelper(DialogType type) const
{
return QWindowsDialogs::createHelper(type);
}
void QWindowsTheme::windowsThemeChanged(QWindow * window)
{
refresh();
QWindowSystemInterface::handleThemeChange(window);
}
// Defined in qpixmap_win.cpp
Q_GUI_EXPORT QPixmap qt_pixmapFromWinHICON(HICON icon);
static QPixmap loadIconFromShell32(int resourceId, QSizeF size)
{
#ifdef Q_OS_WINCE
HMODULE hmod = LoadLibrary(L"ceshell");
#else
HMODULE hmod = QSystemLibrary::load(L"shell32");
#endif
if (hmod) {
HICON iconHandle =
static_cast<HICON>(LoadImage(hmod, MAKEINTRESOURCE(resourceId),
IMAGE_ICON, int(size.width()), int(size.height()), 0));
if (iconHandle) {
QPixmap iconpixmap = qt_pixmapFromWinHICON(iconHandle);
DestroyIcon(iconHandle);
return iconpixmap;
}
}
return QPixmap();
}
QPixmap QWindowsTheme::standardPixmap(StandardPixmap sp, const QSizeF &pixmapSize) const
{
int resourceId = -1;
int stockId = SIID_INVALID;
UINT stockFlags = 0;
LPCTSTR iconName = 0;
switch (sp) {
case DriveCDIcon:
stockId = SIID_DRIVECD;
resourceId = 12;
break;
case DriveDVDIcon:
stockId = SIID_DRIVEDVD;
resourceId = 12;
break;
case DriveNetIcon:
stockId = SIID_DRIVENET;
resourceId = 10;
break;
case DriveHDIcon:
stockId = SIID_DRIVEFIXED;
resourceId = 9;
break;
case DriveFDIcon:
stockId = SIID_DRIVE35;
resourceId = 7;
break;
case FileLinkIcon:
stockFlags = SHGSI_LINKOVERLAY;
// Fall through
case FileIcon:
stockId = SIID_DOCNOASSOC;
resourceId = 1;
break;
case DirLinkIcon:
stockFlags = SHGSI_LINKOVERLAY;
// Fall through
case DirClosedIcon:
case DirIcon:
stockId = SIID_FOLDER;
resourceId = 4;
break;
case DesktopIcon:
resourceId = 35;
break;
case ComputerIcon:
resourceId = 16;
break;
case DirLinkOpenIcon:
stockFlags = SHGSI_LINKOVERLAY;
// Fall through
case DirOpenIcon:
stockId = SIID_FOLDEROPEN;
resourceId = 5;
break;
case FileDialogNewFolder:
stockId = SIID_FOLDER;
resourceId = 319;
break;
case DirHomeIcon:
resourceId = 235;
break;
case TrashIcon:
stockId = SIID_RECYCLER;
resourceId = 191;
break;
#ifndef Q_OS_WINCE
case MessageBoxInformation:
stockId = SIID_INFO;
iconName = IDI_INFORMATION;
break;
case MessageBoxWarning:
stockId = SIID_WARNING;
iconName = IDI_WARNING;
break;
case MessageBoxCritical:
stockId = SIID_ERROR;
iconName = IDI_ERROR;
break;
case MessageBoxQuestion:
stockId = SIID_HELP;
iconName = IDI_QUESTION;
break;
case VistaShield:
stockId = SIID_SHIELD;
break;
#endif
default:
break;
}
#ifndef Q_OS_WINCE
if (stockId != SIID_INVALID) {
if (QSysInfo::WindowsVersion >= QSysInfo::WV_VISTA
&& (QSysInfo::WindowsVersion & QSysInfo::WV_NT_based)
&& QWindowsContext::shell32dll.sHGetStockIconInfo) {
QPixmap pixmap;
SHSTOCKICONINFO iconInfo;
memset(&iconInfo, 0, sizeof(iconInfo));
iconInfo.cbSize = sizeof(iconInfo);
stockFlags |= (pixmapSize.width() > 16 ? SHGFI_LARGEICON : SHGFI_SMALLICON);
if (QWindowsContext::shell32dll.sHGetStockIconInfo(stockId, SHGFI_ICON | stockFlags, &iconInfo) == S_OK) {
pixmap = qt_pixmapFromWinHICON(iconInfo.hIcon);
DestroyIcon(iconInfo.hIcon);
return pixmap;
}
}
}
#endif
if (resourceId != -1) {
QPixmap pixmap = loadIconFromShell32(resourceId, pixmapSize);
if (!pixmap.isNull()) {
if (sp == FileLinkIcon || sp == DirLinkIcon || sp == DirLinkOpenIcon) {
QPainter painter(&pixmap);
QPixmap link = loadIconFromShell32(30, pixmapSize);
painter.drawPixmap(0, 0, int(pixmapSize.width()), int(pixmapSize.height()), link);
}
return pixmap;
}
}
if (iconName) {
HICON iconHandle = LoadIcon(NULL, iconName);
QPixmap pixmap = qt_pixmapFromWinHICON(iconHandle);
DestroyIcon(iconHandle);
if (!pixmap.isNull())
return pixmap;
}
return QPlatformTheme::standardPixmap(sp, pixmapSize);
}
enum { // Shell image list ids
sHIL_EXTRALARGE = 0x2, // 48x48 or user-defined
sHIL_JUMBO = 0x4 // 256x256 (Vista or later)
};
static QString dirIconPixmapCacheKey(int iIcon, int iconSize, int imageListSize)
{
QString key = QLatin1String("qt_dir_") + QString::number(iIcon);
if (iconSize == SHGFI_LARGEICON)
key += QLatin1Char('l');
switch (imageListSize) {
case sHIL_EXTRALARGE:
key += QLatin1Char('e');
break;
case sHIL_JUMBO:
key += QLatin1Char('j');
break;
}
return key;
}
template <typename T>
class FakePointer
{
public:
Q_STATIC_ASSERT_X(sizeof(T) <= sizeof(void *), "FakePointers can only go that far.");
static FakePointer *create(T thing)
{
return reinterpret_cast<FakePointer *>(qintptr(thing));
}
T operator * () const
{
return T(qintptr(this));
}
void operator delete (void *) {}
};
// Shell image list helper functions.
static QPixmap pixmapFromShellImageList(int iImageList, const SHFILEINFO &info)
{
QPixmap result;
#ifdef USE_IIMAGELIST
// For MinGW:
static const IID iID_IImageList = {0x46eb5926, 0x582e, 0x4017, {0x9f, 0xdf, 0xe8, 0x99, 0x8d, 0xaa, 0x9, 0x50}};
if (!QWindowsContext::shell32dll.sHGetImageList)
return result;
if (iImageList == sHIL_JUMBO && QSysInfo::WindowsVersion < QSysInfo::WV_VISTA)
return result;
IImageList *imageList = 0;
HRESULT hr = QWindowsContext::shell32dll.sHGetImageList(iImageList, iID_IImageList,
reinterpret_cast<void **>(&imageList));
if (hr != S_OK)
return result;
HICON hIcon;
hr = imageList->GetIcon(info.iIcon, ILD_TRANSPARENT, &hIcon);
if (hr == S_OK) {
result = qt_pixmapFromWinHICON(hIcon);
DestroyIcon(hIcon);
}
imageList->Release();
#else
Q_UNUSED(iImageList)
Q_UNUSED(info)
#endif // USE_IIMAGELIST
return result;
}
QPixmap QWindowsTheme::fileIconPixmap(const QFileInfo &fileInfo, const QSizeF &size,
QPlatformTheme::IconOptions iconOptions) const
{
/* We don't use the variable, but by storing it statically, we
* ensure CoInitialize is only called once. */
static HRESULT comInit = CoInitialize(NULL);
Q_UNUSED(comInit);
static QCache<QString, FakePointer<int> > dirIconEntryCache(1000);
static QMutex mx;
static int defaultFolderIIcon = -1;
const bool useDefaultFolderIcon = iconOptions & QPlatformTheme::DontUseCustomDirectoryIcons;
QPixmap pixmap;
const QString filePath = QDir::toNativeSeparators(fileInfo.filePath());
const int width = int(size.width());
const int iconSize = width > 16 ? SHGFI_LARGEICON : SHGFI_SMALLICON;
const int requestedImageListSize =
#ifdef USE_IIMAGELIST
width > 48 ? sHIL_JUMBO : (width > 32 ? sHIL_EXTRALARGE : 0);
#else
0;
#endif // !USE_IIMAGELIST
bool cacheableDirIcon = fileInfo.isDir() && !fileInfo.isRoot();
if (cacheableDirIcon) {
QMutexLocker locker(&mx);
int iIcon = (useDefaultFolderIcon && defaultFolderIIcon >= 0) ? defaultFolderIIcon
: **dirIconEntryCache.object(filePath);
if (iIcon) {
QPixmapCache::find(dirIconPixmapCacheKey(iIcon, iconSize, requestedImageListSize), pixmap);
if (pixmap.isNull()) // Let's keep both caches in sync
dirIconEntryCache.remove(filePath);
else
return pixmap;
}
}
SHFILEINFO info;
const unsigned int flags =
#ifndef Q_OS_WINCE
SHGFI_ICON|iconSize|SHGFI_SYSICONINDEX|SHGFI_ADDOVERLAYS|SHGFI_OVERLAYINDEX;
#else
iconSize|SHGFI_SYSICONINDEX;
#endif // Q_OS_WINCE
#if !defined(QT_NO_WINCE_SHELLSDK)
const bool val = cacheableDirIcon && useDefaultFolderIcon
? shGetFileInfoBackground(m_threadPoolRunner, L"dummy", FILE_ATTRIBUTE_DIRECTORY,
&info, flags | SHGFI_USEFILEATTRIBUTES)
: shGetFileInfoBackground(m_threadPoolRunner, reinterpret_cast<const wchar_t *>(filePath.utf16()), 0,
&info, flags);
#else
const bool val = false;
#endif // !QT_NO_WINCE_SHELLSDK
// Even if GetFileInfo returns a valid result, hIcon can be empty in some cases
if (val && info.hIcon) {
QString key;
if (cacheableDirIcon) {
if (useDefaultFolderIcon && defaultFolderIIcon < 0)
defaultFolderIIcon = info.iIcon;
//using the unique icon index provided by windows save us from duplicate keys
key = dirIconPixmapCacheKey(info.iIcon, iconSize, requestedImageListSize);
QPixmapCache::find(key, pixmap);
if (!pixmap.isNull()) {
QMutexLocker locker(&mx);
dirIconEntryCache.insert(filePath, FakePointer<int>::create(info.iIcon));
}
}
if (pixmap.isNull()) {
if (requestedImageListSize) {
pixmap = pixmapFromShellImageList(requestedImageListSize, info);
if (pixmap.isNull() && requestedImageListSize == sHIL_JUMBO)
pixmap = pixmapFromShellImageList(sHIL_EXTRALARGE, info);
}
if (pixmap.isNull())
pixmap = qt_pixmapFromWinHICON(info.hIcon);
if (!pixmap.isNull()) {
if (cacheableDirIcon) {
QMutexLocker locker(&mx);
QPixmapCache::insert(key, pixmap);
dirIconEntryCache.insert(filePath, FakePointer<int>::create(info.iIcon));
}
} else {
qWarning("QWindowsTheme::fileIconPixmap() no icon found");
}
}
DestroyIcon(info.hIcon);
}
if (!pixmap.isNull())
return pixmap;
return QPlatformTheme::fileIconPixmap(fileInfo, size);
}
QT_END_NAMESPACE