From f485885757e287546bb27bda5906bfa4adc5494a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Petr=20Mr=C3=A1zek?= <peterix@gmail.com>
Date: Mon, 2 Jun 2014 00:49:53 +0200
Subject: Add and implement pages and page dialog.

---
 gui/pagedialog/PageDialog_p.h | 106 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 106 insertions(+)
 create mode 100644 gui/pagedialog/PageDialog_p.h

(limited to 'gui/pagedialog/PageDialog_p.h')

diff --git a/gui/pagedialog/PageDialog_p.h b/gui/pagedialog/PageDialog_p.h
new file mode 100644
index 00000000..36e641e3
--- /dev/null
+++ b/gui/pagedialog/PageDialog_p.h
@@ -0,0 +1,106 @@
+#pragma once
+#include <QListView>
+#include <QStyledItemDelegate>
+#include <QEvent>
+#include <QScrollBar>
+
+const int pageIconSize = 24;
+
+class PageViewDelegate : public QStyledItemDelegate
+{
+public:
+	PageViewDelegate(QObject *parent) : QStyledItemDelegate(parent)
+	{
+	}
+	QSize sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const
+	{
+		QSize size = QStyledItemDelegate::sizeHint(option, index);
+		size.setHeight(qMax(size.height(), 32));
+		return size;
+	}
+};
+
+class PageModel : public QAbstractListModel
+{
+public:
+	PageModel(QObject *parent = 0) : QAbstractListModel(parent)
+	{
+		QPixmap empty(pageIconSize, pageIconSize);
+		empty.fill(Qt::transparent);
+		m_emptyIcon = QIcon(empty);
+	}
+	virtual ~PageModel() {};
+
+	int rowCount(const QModelIndex &parent = QModelIndex()) const
+	{
+		return parent.isValid() ? 0 : m_pages.size();
+	}
+	QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const
+	{
+		switch (role)
+		{
+		case Qt::DisplayRole:
+			return m_pages.at(index.row())->displayName();
+		case Qt::DecorationRole:
+		{
+			QIcon icon = m_pages.at(index.row())->icon();
+			if (icon.isNull())
+				icon = m_emptyIcon;
+			return icon;
+		}
+		}
+		return QVariant();
+	}
+
+	void setPages(const QList<BasePage *> &pages)
+	{
+		beginResetModel();
+		m_pages = pages;
+		endResetModel();
+	}
+	const QList<BasePage *> &pages() const
+	{
+		return m_pages;
+	}
+
+private:
+	BasePage * findPageEntryById(QString id)
+	{
+		for(auto page: m_pages)
+		{
+			if (page->id() == id)
+				return page;
+		}
+		return nullptr;
+	}
+
+	QList<BasePage *> m_pages;
+	QIcon m_emptyIcon;
+};
+
+class PageView : public QListView
+{
+public:
+	PageView(QWidget *parent = 0) : QListView(parent)
+	{
+		setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Expanding);
+		setItemDelegate(new PageViewDelegate(this));
+		setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+	}
+
+	virtual QSize sizeHint() const
+	{
+		int width = sizeHintForColumn(0) + frameWidth() * 2 + 5;
+		if (verticalScrollBar()->isVisible())
+			width += verticalScrollBar()->width();
+		return QSize(width, 100);
+	}
+
+	virtual bool eventFilter(QObject *obj, QEvent *event)
+	{
+		if (obj == verticalScrollBar() &&
+			(event->type() == QEvent::Show || event->type() == QEvent::Hide))
+			updateGeometry();
+		return QListView::eventFilter(obj, event);
+	}
+};
-- 
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