Initial import

2008-12-02 12:01:29 +01:00
commit 05c35356ab
1675 changed files with 229938 additions and 0 deletions
--- a/src/plugins/coreplugin/fileiconprovider.cpp
+++ b/src/plugins/coreplugin/fileiconprovider.cpp
@@ -0,0 +1,138 @@
+/***************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact:  Qt Software Information (qt-info@nokia.com)
+**
+** 
+** Non-Open Source Usage  
+** 
+** Licensees may use this file in accordance with the Qt Beta Version
+** License Agreement, Agreement version 2.2 provided with the Software or,
+** alternatively, in accordance with the terms contained in a written
+** agreement between you and Nokia.  
+** 
+** GNU General Public License Usage 
+** 
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License versions 2.0 or 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the packaging
+** of this file.  Please review the following information to ensure GNU
+** General Public Licensing requirements will be met:
+**
+** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt GPL Exception version
+** 1.2, included in the file GPL_EXCEPTION.txt in this package.  
+** 
+***************************************************************************/
+#include "fileiconprovider.h"
+
+using namespace Core;
+
+/*!
+  \class FileIconProvider
+
+  Provides icons based on file suffixes.
+
+  The class is a singleton: It's instance can be accessed via the static instance() method.
+  Plugins can register custom icons via registerIconSuffix(), and retrieve icons via the icon()
+  method.
+  */
+
+FileIconProvider *FileIconProvider::m_instance = 0;
+
+FileIconProvider::FileIconProvider():
+    m_unknownFileIcon(QLatin1String(":/qworkbench/images/unknownfile.png"))
+{
+}
+
+FileIconProvider::~FileIconProvider()
+{
+    m_instance = 0;
+}
+
+/*!
+  Returns the icon associated with the file suffix in fileInfo. If there is none,
+  the default icon of the operating system is returned.
+  */
+QIcon FileIconProvider::icon(const QFileInfo &fileInfo)
+{
+    const QString suffix = fileInfo.suffix();
+    QIcon icon = iconForSuffix(suffix);
+
+    if (icon.isNull()) {
+        // Get icon from OS and store it in the cache
+
+        // Disabled since for now we'll make sure that all icons fit with our
+        // own custom icons by returning an empty one if we don't know it.
+#if 0
+        // This is incorrect if the OS does not always return the same icon for the
+        // same suffix (Mac OS X), but should speed up the retrieval a lot ...
+        icon = m_systemIconProvider.icon(fileInfo);
+        if (!suffix.isEmpty())
+            registerIconForSuffix(icon, suffix);
+#else
+        if (fileInfo.isDir()) {
+            icon = m_systemIconProvider.icon(fileInfo);
+        } else {
+            icon = m_unknownFileIcon;
+        }
+#endif
+    }
+
+    return icon;
+}
+
+/*!
+  Registers an icon for a given suffix, overriding any existing icon.
+  */
+void FileIconProvider::registerIconForSuffix(const QIcon &icon, const QString &suffix)
+{
+    // delete old icon, if it exists
+    QList<QPair<QString,QIcon> >::iterator iter = m_cache.begin();
+    for(; iter != m_cache.end(); ++iter) {
+        if ((*iter).first == suffix) {
+            iter = m_cache.erase(iter);
+            break;
+        }
+    }
+
+    QPair<QString,QIcon> newEntry(suffix, icon);
+    m_cache.append(newEntry);
+}
+
+/*!
+  Returns an icon for the given suffix, or an empty one if none registered.
+  */
+QIcon FileIconProvider::iconForSuffix(const QString &suffix) const
+{
+    QIcon icon;
+
+    if (suffix.isEmpty())
+        return icon;
+
+    QList<QPair<QString,QIcon> >::const_iterator iter = m_cache.constBegin();
+    for(; iter != m_cache.constEnd(); ++iter) {
+        if ((*iter).first == suffix) {
+            icon = (*iter).second;
+            break;
+        }
+    }
+
+    return icon;
+}
+
+/*!
+  Returns the sole instance of FileIconProvider.
+  */
+FileIconProvider *FileIconProvider::instance()
+{
+    if (!m_instance)
+        m_instance = new FileIconProvider;
+    return m_instance;
+}