Implemented an icon cache to speed-up workspace refresh

FossilOrigin-Name: 964b28f34fae482959ce8a96cbc6106f8702fb33

manifest

@@ -1,5 +1,5 @@
-C Fixed\sformatting\sin\sbuilding\sinstructions
-D 2015-04-25T15:10:40.587
+C Implemented\san\sicon\scache\sto\sspeed-up\sworkspace\srefresh\n
+D 2015-05-03T19:14:10.535
 F .travis.yml 77966888a81c4ceee1fcc79bce842c9667ad8a35
 F debian/changelog eb4304dfcb6bb66850ec740838090eb50ce1249b
 F debian/compat b6abd567fa79cbe0196d093a067271361dc6ca8b
@@ -198,8 +198,8 @@ F src/FileTableView.cpp 5ddf8c391c9a3ac449ec61fb1db837b577afeec2
 F src/FileTableView.h 03e56d87c2d46411b9762b87f4d301619aaf18df
 F src/LoggedProcess.cpp 2a1e5c94bc1e57c8984563e66c210e43a14dc60c
 F src/LoggedProcess.h 85df7c635c807a5a0e8c4763f17a0752aaff7261
-F src/MainWindow.cpp f023407f57730b695d4eeff8f27eef569c9eec66
-F src/MainWindow.h dc0a9ed7de8a338e56c38c00ec303796f31bd24d
+F src/MainWindow.cpp 6758e29796f411f920a0a59ece5002e4aeefd9f2
+F src/MainWindow.h 77038e9c9fe8a64a1c2dfb8d4c2be7558ab5f372
 F src/SettingsDialog.cpp a46cff5e5dd425e3dbdd15632abfd5829f5562b4
 F src/SettingsDialog.h 4e2790f581e991c744ae9f86580f1972b8c7ff43
 F src/Utils.cpp 9aff456712e4276b49083426301b3b96d3819c77
@@ -213,7 +213,7 @@ F ui/CommitDialog.ui 6200f6cabdcf40a20812e811be28e0793f82516f
 F ui/FileActionDialog.ui 89bb4dc2d0b8adcd41adcb11ec65f2028a09a12d
 F ui/MainWindow.ui 8677f5c8bca5bf7561d5f64bfdd0cef5157c6ac7
 F ui/SettingsDialog.ui 2b7c2870e0054b0f4106f495d85d02c0b814df8b
-P 9314ddc02dd302435a4aea987f16cb847a1076b6
-R 7cb8f99d09af03a8c7fc0a6cb6e77784
+P 6b51d631f61ea685cf4ce84b3c34954dcd6338e2
+R 4dbdcef2e6b8d98135af80d15f437e02
 U kostas
-Z e7407fd42cdfa4ddd4dc6e2cd76018f5
+Z ccf17d40f1e416c2bd9554afa0bd3798

manifest.uuid

@@ -1 +1 @@
-6b51d631f61ea685cf4ce84b3c34954dcd6338e2
+964b28f34fae482959ce8a96cbc6106f8702fb33

src/MainWindow.cpp

@@ -6,7 +6,6 @@
 #include <QDrag>
 #include <QDragEnterEvent>
 #include <QFileDialog>
-#include <QFileIconProvider>
 #include <QInputDialog>
 #include <QLabel>
 #include <QMessageBox>
@@ -842,7 +841,7 @@ _done:
 }
 
 //------------------------------------------------------------------------------
-static void addPathToTree(QStandardItem &root, const QString &path)
+static void addPathToTree(QStandardItem &root, const QString &path, const QIcon &folderIcon)
 {
 	QStringList dirs = path.split('/');
 	QStandardItem *parent = &root;
@@ -868,7 +867,7 @@ static void addPathToTree(QStandardItem &root, const QString &path)
 
 		if(!found) // Generate it
 		{
-			QStandardItem *child = new QStandardItem(QIcon(":icons/icons/Folder-01.png"), dir);
+			QStandardItem *child = new QStandardItem(folderIcon, dir);
 			child->setData(fullpath); // keep the full path to simplify selection
 			parent->appendRow(child);
 			parent = child;
@@ -887,7 +886,7 @@ void MainWindow::updateDirView()
 	header << tr("Folders");
 	repoDirModel.setHorizontalHeaderLabels(header);
 
-	QStandardItem *root = new QStandardItem(QIcon(":icons/icons/My Documents-01.png"), projectName);
+	QStandardItem *root = new QStandardItem(getInternalIcon(":icons/icons/My Documents-01.png"), projectName);
 	root->setData(""); // Empty Path
 	root->setEditable(false);
 
@@ -898,7 +897,7 @@ void MainWindow::updateDirView()
 		if(dir.isEmpty())
 			continue;
 
-		addPathToTree(*root, dir);
+		addPathToTree(*root, dir, getInternalIcon(":icons/icons/Folder-01.png"));
 	}
 	ui->treeView->expandToDepth(0);
 	ui->treeView->sortByColumn(0, Qt::AscendingOrder);
@@ -922,8 +921,6 @@ void MainWindow::updateFileView()
 		{   RepoFile::TYPE_CONFLICTED, tr("Conflicted"), ":icons/icons/Button Blank Red-01.png" },
 	};
 
-	QFileIconProvider icon_provider;
-
 	bool display_path = viewMode==VIEWMODE_LIST || selectedDirs.count() > 1;
 
 	size_t item_id=0;
@@ -950,20 +947,26 @@ void MainWindow::updateFileView()
 			}
 		}
 
-		QStandardItem *status = new QStandardItem(QIcon(status_icon_path), status_text);
+		QStandardItem *status = new QStandardItem(getInternalIcon(status_icon_path), status_text);
 		status->setToolTip(status_text);
 		repoFileModel.setItem(item_id, COLUMN_STATUS, status);
 
 		QFileInfo finfo = e.getFileInfo();
-		QIcon icon = icon_provider.icon(finfo);
+		QString icon_type = iconProvider.type(finfo);
+
+
+		if(!iconCache.contains(icon_type))
+			iconCache.insert(icon_type, iconProvider.icon(finfo));
+
+		const QIcon *icon = &iconCache[icon_type];
 
 		QStandardItem *filename_item = 0;
 		repoFileModel.setItem(item_id, COLUMN_PATH, new QStandardItem(path));
 
 		if(display_path)
-			filename_item = new QStandardItem(icon, QDir::toNativeSeparators(e.getFilePath()));
+			filename_item = new QStandardItem(*icon, QDir::toNativeSeparators(e.getFilePath()));
 		else
-			filename_item = new QStandardItem(icon, e.getFilename());
+			filename_item = new QStandardItem(*icon, e.getFilename());
 
 		Q_ASSERT(filename_item);
 		// Keep the path in the user data
@@ -2447,6 +2450,16 @@ QMenu * MainWindow::createPopupMenu()
 	return NULL;
 }
 
+//------------------------------------------------------------------------------
+const QIcon &MainWindow::getInternalIcon(const char* name)
+{
+	if(iconCache.contains(name))
+		return iconCache[name];
+
+	iconCache.insert(name, QIcon(name));
+	return iconCache[name];
+}
+
 //------------------------------------------------------------------------------
 void MainWindow::on_actionViewStash_triggered()
 {

src/MainWindow.h

@@ -8,6 +8,7 @@
 #include <QFileInfo>
 #include <QDir>
 #include <QProcess>
+#include <QFileIconProvider>
 #include <QSet>
 #include "SettingsDialog.h"
 
@@ -170,6 +171,7 @@ private:
 	void dropEvent(class QDropEvent *event);
 	void setBusy(bool busy);
 	virtual QMenu *createPopupMenu();
+	const QIcon& getInternalIcon(const char *name);
 
 	enum RepoStatus
 	{
@@ -242,8 +244,11 @@ private:
 		MAX_RECENT=5
 	};
 
+	typedef QMap<QString, QIcon> icon_map_t;
 
 	Ui::MainWindow		*ui;
+	QFileIconProvider	iconProvider;
+	icon_map_t			iconCache;
 	QStandardItemModel	repoFileModel;
 	QStandardItemModel	repoDirModel;
 	QStandardItemModel	repoStashModel;