Initial commit. Basics work. Next: Drag and Drop

1 files changed, 96 insertions, 0 deletions

diff --git a/CategorizedView.h b/CategorizedView.h
new file mode 100644
index 00000000..1e918496
--- /dev/null
+++ b/CategorizedView.h
@@ -0,0 +1,96 @@
+#ifndef WIDGET_H
+#define WIDGET_H
+
+#include <QListView>
+#include <QLineEdit>
+
+class CategorizedView : public QListView
+{
+	Q_OBJECT
+
+public:
+	CategorizedView(QWidget *parent = 0);
+	~CategorizedView();
+
+	enum
+	{
+		CategoryRole = Qt::UserRole
+	};
+
+	virtual QRect visualRect(const QModelIndex &index) const;
+
+protected slots:
+	 void dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight, const QVector<int> &roles);
+	virtual void rowsInserted(const QModelIndex &parent, int start, int end);
+	virtual void rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end);
+	virtual void updateGeometries();
+
+protected:
+	virtual bool isIndexHidden(const QModelIndex &index) const;
+	void mousePressEvent(QMouseEvent *event) override;
+	void mouseMoveEvent(QMouseEvent *event) override;
+	void mouseReleaseEvent(QMouseEvent *event) override;
+	void mouseDoubleClickEvent(QMouseEvent *event) override;
+	void paintEvent(QPaintEvent *event) override;
+	void resizeEvent(QResizeEvent *event) override;
+
+	void dragEnterEvent(QDragEnterEvent *event) override;
+	void dragMoveEvent(QDragMoveEvent *event) override;
+	void dragLeaveEvent(QDragLeaveEvent *event) override;
+	void dropEvent(QDropEvent *event) override;
+
+private:
+	struct Category
+	{
+		Category(const QString &text, CategorizedView *view);
+		Category(const Category *other);
+		CategorizedView *view;
+		QString text;
+		bool collapsed;
+		QRect iconRect;
+		QRect textRect;
+
+		void drawHeader(QPainter *painter, const int y);
+		int totalHeight() const;
+		int headerHeight() const;
+		int contentHeight() const;
+		QSize categoryTotalSize() const;
+	};
+	friend struct Category;
+
+	QList<Category *> m_categories;
+
+	int m_leftMargin;
+	int m_rightMargin;
+	int m_categoryMargin;
+	int m_itemSpacing;
+
+	//bool m_updatesDisabled;
+
+	Category *category(const QModelIndex &index) const;
+	Category *category(const QString &cat) const;
+	int numItemsForCategory(const Category *category) const;
+	QList<QModelIndex> itemsForCategory(const Category *category) const;
+
+	int categoryTop(const Category *category) const;
+
+	int itemsPerRow() const;
+	int contentWidth() const;
+
+	static bool lessThanCategoryPointer(const Category *c1, const Category *c2);
+	QList<Category *> sortedCategories() const;
+
+private:
+	mutable QSize m_cachedItemSize;
+	QSize itemSize(const QStyleOptionViewItem &option) const;
+	QSize itemSize() const { return itemSize(viewOptions()); }
+
+	/*QLineEdit *m_categoryEditor;
+	Category *m_editedCategory;
+	void startCategoryEditor(Category *category);
+
+private slots:
+	void endCategoryEditor();*/
+};
+
+#endif // WIDGET_H