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FileIconProvider: Refactor class.

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Streamline code, avoid functions and container.end() invocations,
introduce private, reduce #ifdefs, clarify code and add
comments about usage on various platforms.
Implement QFileIconProvider interface, making it usable for file system
models. Use in FolderNavigationWidget. On this occasion, add checkable
"Synchronize" action to FolderNavigationWidget.
Task-number: QTCREATORBUG-62
This commit is contained in:
Friedemann Kleint
2010-01-28 15:47:45 +01:00
parent 0fdf02ab4d
commit 6771aafb9c
5 changed files with 165 additions and 89 deletions
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42
src/plugins/coreplugin/fileiconprovider.h
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@@ -32,22 +32,35 @@
#include <coreplugin/core_global.h>
#include <QtCore/QFileInfo>
#include <QtCore/QPair>
#include <QtGui/QFileIconProvider>
#include <QtGui/QIcon>
#include <QtGui/QStyle>
#include <QtGui/QFileIconProvider>
QT_BEGIN_NAMESPACE
class QFileInfo;
class QIcon;
class QPixmap;
class QString;
QT_END_NAMESPACE
namespace Core {
class MimeType;
struct FileIconProviderPrivate;
class CORE_EXPORT FileIconProvider
class CORE_EXPORT FileIconProvider : public QFileIconProvider
{
public:
~FileIconProvider(); // used to clear the cache
QIcon icon(const QFileInfo &fileInfo);
Q_DISABLE_COPY(FileIconProvider)
FileIconProvider();
public:
virtual ~FileIconProvider();
// Implement QFileIconProvider
virtual QIcon icon(IconType type) const;
virtual QIcon icon(const QFileInfo &info) const;
virtual QString type(const QFileInfo &info) const;
// Register additional overlay icons
QPixmap overlayIcon(QStyle::StandardPixmap baseIcon, const QIcon &overlayIcon, const QSize &size) const;
void registerIconOverlayForSuffix(const QIcon &icon, const QString &suffix);
void registerIconOverlayForMimeType(const QIcon &icon, const MimeType &mimeType);
@@ -55,18 +68,7 @@ public:
static FileIconProvider *instance();
private:
QIcon iconForSuffix(const QString &suffix) const;
// mapping of file ending to icon
// TODO: Check if this is really faster than a QHash
mutable QList<QPair<QString, QIcon> > m_cache;
QFileIconProvider m_systemIconProvider;
QIcon m_unknownFileIcon;
// singleton pattern
FileIconProvider();
static FileIconProvider *m_instance;
FileIconProviderPrivate *d;
};
} // namespace Core