Create a base class for TableViews

2014-02-04 19:14:11 +00:00
parent 65ac8cde39
commit 4d809330ea
14 changed files with 244 additions and 277 deletions
--- a/widgets/tableview.cpp
+++ b/widgets/tableview.cpp
@@ -0,0 +1,131 @@
+/*
+ * Cantata
+ *
+ * Copyright (c) 2011-2014 Craig Drummond <craig.p.drummond@gmail.com>
+ *
+ * ----
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "tableview.h"
+#include "stretchheaderview.h"
+#include "settings.h"
+#include "localize.h"
+#include <QMenu>
+#include <QAction>
+
+TableView::TableView(const QString &cfgName, QWidget *parent, bool menuAlwaysAllowed)
+    : TreeView(parent, menuAlwaysAllowed)
+    , menu(0)
+    , configName(cfgName)
+{
+    setContextMenuPolicy(Qt::CustomContextMenu);
+    setAcceptDrops(true);
+    setDragDropOverwriteMode(false);
+    setDragDropMode(QAbstractItemView::DragDrop);
+    setSelectionMode(QAbstractItemView::ExtendedSelection);
+    setDropIndicatorShown(true);
+    setUniformRowHeights(true);
+    setAttribute(Qt::WA_MouseTracking, true);
+    StretchHeaderView *hdr=new StretchHeaderView(Qt::Horizontal, this);
+    setHeader(hdr);
+    connect(hdr, SIGNAL(StretchEnabledChanged(bool)), SLOT(stretchToggled(bool)));
+}
+
+void TableView::initHeader()
+{
+    if (!model()) {
+        return;
+    }
+
+    StretchHeaderView *hdr=qobject_cast<StretchHeaderView *>(header());
+    QList<int> hideable;
+    if (!menu) {
+        hdr->SetStretchEnabled(true);
+        stretchToggled(true);
+        hdr->setContextMenuPolicy(Qt::CustomContextMenu);
+        for (int i=0; i<model()->columnCount(); ++i) {
+            hdr->SetColumnWidth(i, model()->headerData(i, Qt::Horizontal, Role_Width).toDouble());
+            if (model()->headerData(i, Qt::Horizontal, Role_Hideable).toBool()) {
+                hideable.append(i);
+            }
+        }
+        #if QT_VERSION >= 0x050000
+        hdr->setSectionsMovable(true);
+        #else
+        hdr->setMovable(true);
+        #endif
+        connect(hdr, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(showMenu()));
+    }
+
+    //Restore state
+    QByteArray state=Settings::self()->headerState(configName);
+    if (state.isEmpty()) {
+        foreach (int i, hideable) {
+            hdr->HideSection(i);
+        }
+    } else {
+        hdr->RestoreState(state);
+    }
+
+    if (!menu) {
+        menu = new QMenu(this);
+        QAction *stretch=new QAction(i18n("Stretch Columns To Fit Window"), this);
+        stretch->setCheckable(true);
+        stretch->setChecked(hdr->is_stretch_enabled());
+        connect(stretch, SIGNAL(toggled(bool)), hdr, SLOT(SetStretchEnabled(bool)));
+        menu->addAction(stretch);
+        menu->addSeparator();
+        foreach (int col, hideable) {
+            QAction *act=new QAction(model()->headerData(col, Qt::Horizontal, Qt::DisplayRole).toString(), menu);
+            act->setCheckable(true);
+            act->setChecked(!hdr->isSectionHidden(col));
+            menu->addAction(act);
+            act->setData(col);
+            connect(act, SIGNAL(toggled(bool)), this, SLOT(toggleHeaderItem(bool)));
+        }
+    }
+}
+
+void TableView::saveHeader()
+{
+    if (menu && model()) {
+        Settings::self()->saveHeaderState(configName, qobject_cast<StretchHeaderView *>(header())->SaveState());
+    }
+}
+
+void TableView::showMenu()
+{
+    menu->exec(QCursor::pos());
+}
+
+void TableView::toggleHeaderItem(bool visible)
+{
+    QAction *act=qobject_cast<QAction *>(sender());
+
+    if (act) {
+        int index=act->data().toInt();
+        if (-1!=index) {
+            qobject_cast<StretchHeaderView *>(header())->SetSectionHidden(index, !visible);
+        }
+    }
+}
+
+void TableView::stretchToggled(bool e)
+{
+    setHorizontalScrollBarPolicy(e ? Qt::ScrollBarAlwaysOff : Qt::ScrollBarAsNeeded);
+}