some black magic involving templates which doesn't even work, pushing so I can work on it at home

1 files changed, 148 insertions, 0 deletions

diff --git a/lsseteditor.h b/lsseteditor.h
new file mode 100644
index 0000000..a89131d
--- /dev/null
+++ b/lsseteditor.h
@@ -0,0 +1,148 @@
+#ifndef LSSETEDITOR_H
+#define LSSETEDITOR_H
+
+#include <QWidget>
+#include <QSpinBox>
+#include <QComboBox>
+
+class _LSSetEntryEditorBaseBase : public QWidget {
+	Q_OBJECT
+protected:
+	explicit _LSSetEntryEditorBaseBase(QWidget *parent = 0) :
+		QWidget(parent) { }
+
+signals:
+	void dataEdited();
+};
+
+template <typename TData>
+class LSSetEntryEditorBase : public _LSSetEntryEditorBaseBase {
+protected:
+	explicit LSSetEntryEditorBase(QWidget *parent = 0) :
+		_LSSetEntryEditorBaseBase(parent) { }
+
+private:
+	void setCurrentEntry(TData &entry);
+	// what??
+	//friend class LSSetEditor<TData, LSSetEntryEditorBase<TData> >;
+
+	TData *m_currentEntry;
+
+protected:
+	virtual void loadEntryFrom(const TData &entry) = 0;
+	TData *currentEntry() const { return m_currentEntry; }
+};
+
+
+
+
+class _LSSetEditorBase : public QWidget {
+	Q_OBJECT
+public:
+	explicit _LSSetEditorBase(int maxEntries, QWidget *parent = 0);
+
+protected:
+	int m_maxEntries;
+	QSpinBox *m_entryCount;
+	QComboBox *m_chooser;
+
+	QWidget *m_setEditorWidget;
+
+	int m_loadingThings;
+
+	void setup(QWidget *eWidget);
+
+	virtual void changeEntryCountTo(int count) = 0;
+	virtual void showEntry(int index) = 0;
+	virtual void resizeDataListTo(int count) = 0;
+
+private slots:
+	void handleEntryCountChanged(int count);
+	void handleEntrySelected(int index);
+
+signals:
+	void dataEdited();
+
+};
+
+template <typename TData, typename TWidget>
+class LSSetEditor : public _LSSetEditorBase {
+public:
+	explicit LSSetEditor(int maxEntries, QWidget *parent = 0) :
+		_LSSetEditorBase(maxEntries, parent) {
+
+		TWidget *w = new TWidget(this);
+		setup(w);
+
+		LSSetEntryEditorBase<TData> *checkMe = w;
+		connect(checkMe, SIGNAL(dataEdited()), SIGNAL(dataEdited()));
+	}
+
+	void setData(QList<TData> *newData) {
+		m_loadingThings++;
+
+		m_data = newData;
+		m_entryCount->setValue(newData->count());
+		changeEntryCountTo(newData->count());
+
+		m_chooser->setCurrentIndex(newData->count() ? 0 : -1);
+		showEntry(newData->count() ? 0 : -1);
+
+		m_loadingThings--;
+	}
+
+protected:
+	QList<TData> *m_data;
+
+	void changeEntryCountTo(int count) {
+		m_loadingThings++;
+
+		int existingCount = m_chooser->count();
+
+		if (existingCount > count) {
+			// remove something
+			int nowSelected = m_chooser->currentIndex();
+
+			if (nowSelected >= count) {
+				// oops, we'll need to select something else
+				showEntry(count - 1);
+				m_chooser->setCurrentIndex(count - 1);
+			}
+
+			for (int i = (existingCount - 1); i >= count; i--)
+				m_chooser->removeItem(i);
+
+		} else if (count > existingCount) {
+			// add something
+
+			for (int i = existingCount; i < count; i++)
+				m_chooser->addItem(QString("Set %1").arg(i + 1));
+		}
+
+		m_loadingThings--;
+	}
+
+	void resizeDataListTo(int count) {
+		m_data->reserve(count);
+
+		while (m_data->count() < count)
+			m_data->append(TData());
+		while (m_data->count() > count)
+			m_data->removeLast();
+	}
+
+	void showEntry(int index) {
+		m_loadingThings++;
+
+		if (index == -1) {
+			m_setEditorWidget->setEnabled(false);
+		} else {
+			const TData &entry = m_data->at(index);
+		}
+	}
+};
+
+
+
+
+#endif // LSSETEDITOR_H