Commit my WIP on the new icon cache/loading systems for Lumina.

1 files changed, 56 insertions, 0 deletions

diff --git a/src-qt5/core/libLumina/LIconCache.h b/src-qt5/core/libLumina/LIconCache.h
new file mode 100644
index 00000000..08726399
--- /dev/null
+++ b/src-qt5/core/libLumina/LIconCache.h
@@ -0,0 +1,56 @@
+//===========================================
+//  Lumina-desktop source code
+//  Copyright (c) 2017, Ken Moore
+//  Available under the 3-clause BSD license
+//  See the LICENSE file for full details
+//===========================================
+// This is a simple class for loading/serving icon files 
+// from the icon theme or local filesystem
+//===========================================
+#include <QHash>
+#include <QIcon>
+#include <QPixmap>
+#include <QFileSystemWatcher>
+#include <QString>
+#include <QFile>
+#include <QDateTime>
+
+//Data structure for saving the icon/information internally
+struct icon_data{
+  QString fullpath;
+  QDateTime lastread;
+  QList<QLabel*> pendingLabels;
+  QList<QAbstractButton*> pendingButtons;
+  QIcon icon;
+  QIcon thumbnail;
+};
+
+class LIconCache : public QObject{
+	Q_OBJECT
+public:
+	LIconCache(QObject *parent = 0);
+	~LIconCache();
+	//Icon Checks
+	bool exists(QString icon);
+	bool isLoaded(QString icon);
+	QString findFile(QString icon); //find the full path of a given file/name (searching the current Icon theme)
+	
+	void loadIcon(QAbstractButton *button, QString icon, bool noThumb = false);
+	void loadIcon(QLabel *label, QString icon, bool noThumb = false);
+
+private:
+	QHash<QString, icon_data> HASH;
+	QFileSystemWatcher *WATCHER;
+
+	icon_data createData(QString icon);
+	QStringList getChildIconDirs(QString path); //recursive function to find directories with icons in them
+
+	static void ReadFile(LIconCache *obj, QString id, QString path);
+
+private slots:
+	void IconLoaded(QString id, QDateTime sync, QByteArray *data);
+ 
+signals:
+	void InternalIconLoaded(QString, QDateTime, QByteArray*); //INTERNAL SIGNAL - DO NOT USE in other classes/objects
+	void IconAvailable(QString); //way for classes to listen/reload icons as they change
+};