1 files changed, 91 insertions, 0 deletions
diff --git a/application/groupview/VisualGroup.h b/application/groupview/VisualGroup.h
new file mode 100644
index 00000000..d8d1f145
--- /dev/null
+++ b/application/groupview/VisualGroup.h
@@ -0,0 +1,91 @@
+#pragma once
+
+#include <QString>
+#include <QRect>
+#include <QVector>
+#include <QStyleOption>
+
+class GroupView;
+class QPainter;
+class QModelIndex;
+
+struct VisualRow
+{
+	QList<QModelIndex> items;
+	int height = 0;
+	int top = 0;
+	inline int size() const
+	{
+		return items.size();
+	}
+	inline QModelIndex &operator[](int i)
+	{
+		return items[i];
+	}
+};
+
+struct VisualGroup
+{
+/* constructors */
+	VisualGroup(const QString &text, GroupView *view);
+	VisualGroup(const VisualGroup *other);
+
+/* data */
+	GroupView *view = nullptr;
+	QString text;
+	bool collapsed = false;
+	QVector<VisualRow> rows;
+	int firstItemIndex = 0;
+	int m_verticalPosition = 0;
+
+/* logic */
+	/// update the internal list of items and flow them into the rows.
+	void update();
+
+	/// draw the header at y-position.
+	void drawHeader(QPainter *painter, const QStyleOptionViewItem &option);
+
+	/// height of the group, in total. includes a small bit of padding.
+	int totalHeight() const;
+
+	/// height of the group header, in pixels
+	int headerHeight() const;
+
+	/// height of the group content, in pixels
+	int contentHeight() const;
+
+	/// the number of visual rows this group has
+	int numRows() const;
+
+	/// actually calculate the above value
+	int calculateNumRows() const;
+
+	/// the height at which this group starts, in pixels
+	int verticalPosition() const;
+
+	/// relative geometry - top of the row of the given item
+	int rowTopOf(const QModelIndex &index) const;
+
+	/// height of the row of the given item
+	int rowHeightOf(const QModelIndex &index) const;
+
+	/// x/y position of the given item inside the group (in items!)
+	QPair<int, int> positionOf(const QModelIndex &index) const;
+
+	enum HitResult
+	{
+		NoHit = 0x0,
+		TextHit = 0x1,
+		CheckboxHit = 0x2,
+		HeaderHit = 0x4,
+		BodyHit = 0x8
+	};
+	Q_DECLARE_FLAGS(HitResults, HitResult)
+
+	/// shoot! BANG! what did we hit?
+	HitResults hitScan (const QPoint &pos) const;
+
+	QList<QModelIndex> items() const;
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(VisualGroup::HitResults)