Separate page dialog into a page container and a dialog.

gui/widgets/PageContainer.cpp

@@ -0,0 +1,190 @@
+/* Copyright 2014 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "PageContainer.h"
+#include "gui/Platform.h"
+#include <QStackedLayout>
+#include <QPushButton>
+#include <QSortFilterProxyModel>
+#include <QUrl>
+#include "MultiMC.h"
+#include <QStyledItemDelegate>
+#include <QListView>
+#include <QLineEdit>
+#include <QLabel>
+#include <QDialogButtonBox>
+#include <QGridLayout>
+#include <QDesktopServices>
+#include <settingsobject.h>
+
+#include "PageContainer_p.h"
+#include <gui/widgets/IconLabel.h>
+
+class PageEntryFilterModel : public QSortFilterProxyModel
+{
+public:
+	explicit PageEntryFilterModel(QObject *parent = 0) : QSortFilterProxyModel(parent)
+	{
+	}
+
+protected:
+	bool filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const
+	{
+		const QString pattern = filterRegExp().pattern();
+		const auto model = static_cast<PageModel *>(sourceModel());
+		const auto page = model->pages().at(sourceRow);
+		if(!page->shouldDisplay())
+			return false;
+		// Regular contents check, then check page-filter.
+		return QSortFilterProxyModel::filterAcceptsRow(sourceRow, sourceParent);
+	}
+};
+
+PageContainer::PageContainer(BasePageProviderPtr pageProvider, QString defaultId, QWidget *parent) : QWidget(parent)
+{
+	createUI();
+	m_model = new PageModel(this);
+	m_proxyModel = new PageEntryFilterModel(this);
+	int firstIndex = -1;
+	int counter = 0;
+	auto pages = pageProvider->getPages();
+	for(auto page: pages)
+	{
+		page->stackIndex = m_pageStack->addWidget(dynamic_cast<QWidget *>(page));
+		page->listIndex = counter;
+		counter++;
+		if(firstIndex == -1)
+		{
+			firstIndex = page->stackIndex;
+		}
+	}
+	m_model->setPages(pages);
+
+	m_proxyModel->setSourceModel(m_model);
+	m_proxyModel->setFilterCaseSensitivity(Qt::CaseInsensitive);
+
+	m_pageList->setIconSize(QSize(pageIconSize, pageIconSize));
+	m_pageList->setSelectionMode(QAbstractItemView::SingleSelection);
+	m_pageList->setVerticalScrollMode(QAbstractItemView::ScrollPerPixel);
+	m_pageList->setModel(m_proxyModel);
+    connect(m_pageList->selectionModel(), SIGNAL(currentRowChanged(QModelIndex,QModelIndex)),
+            this, SLOT(currentChanged(QModelIndex)));
+	m_pageStack->setStackingMode(QStackedLayout::StackOne);
+	m_pageList->setFocus();
+	// now find what we want to have selected...
+	auto page = m_model->findPageEntryById(defaultId);
+	QModelIndex index;
+	if(page)
+	{
+		index = m_proxyModel->mapFromSource(m_model->index(page->listIndex));
+	}
+	else
+	{
+		index = m_proxyModel->index(0,0);
+	}
+	if(index.isValid())
+		m_pageList->setCurrentIndex(index);
+}
+
+void PageContainer::createUI()
+{
+	m_pageStack = new QStackedLayout;
+	m_filter = new QLineEdit;
+	m_pageList = new PageView;
+	m_header = new QLabel();
+	m_iconHeader = new IconLabel(this, QIcon(), QSize(24,24));
+
+	QFont headerLabelFont = m_header->font();
+	headerLabelFont.setBold(true);
+	const int pointSize = headerLabelFont.pointSize();
+	if (pointSize > 0)
+		headerLabelFont.setPointSize(pointSize + 2);
+	m_header->setFont(headerLabelFont);
+
+	QHBoxLayout *headerHLayout = new QHBoxLayout;
+	const int leftMargin = MMC->style()->pixelMetric(QStyle::PM_LayoutLeftMargin);
+	headerHLayout->addSpacerItem(
+		new QSpacerItem(leftMargin, 0, QSizePolicy::Fixed, QSizePolicy::Ignored));
+	headerHLayout->addWidget(m_header);
+	headerHLayout->addSpacerItem(
+		new QSpacerItem(0, 0, QSizePolicy::Expanding, QSizePolicy::Ignored));
+	headerHLayout->addWidget(m_iconHeader);
+
+	m_pageStack->setMargin(0);
+	m_pageStack->addWidget(new QWidget(this));
+
+	m_layout = new QGridLayout;
+	m_layout->addLayout(headerHLayout, 0, 1, 1, 1);
+	m_layout->addWidget(m_pageList, 0, 0, 2, 1);
+	m_layout->addLayout(m_pageStack, 1, 1, 1, 1);
+	m_layout->setColumnStretch(1, 4);
+	setLayout(m_layout);
+}
+
+void PageContainer::addButtons(QWidget *buttons)
+{
+	m_layout->addWidget(buttons, 2, 0, 1, 2);
+}
+
+void PageContainer::showPage(int row)
+{
+	if(row != -1)
+	{
+		m_currentPage = m_model->pages().at(row);
+	}
+	else
+	{
+		m_currentPage = nullptr;
+	}
+	if(m_currentPage)
+	{
+		m_pageStack->setCurrentIndex(m_currentPage->stackIndex);
+		m_header->setText(m_currentPage->displayName());
+		m_iconHeader->setIcon(m_currentPage->icon());
+		m_currentPage->opened();
+	}
+	else
+	{
+		m_pageStack->setCurrentIndex(0);
+		m_header->setText(QString());
+		m_iconHeader->setIcon(QIcon::fromTheme("bug"));
+	}
+}
+
+void PageContainer::help()
+{
+	if(m_currentPage)
+	{
+		QString pageId = m_currentPage->helpPage();
+		if(pageId.isEmpty())
+			return;
+		QDesktopServices::openUrl(QUrl("https://github.com/MultiMC/MultiMC5/wiki/" + pageId));
+	}
+}
+
+void PageContainer::currentChanged(const QModelIndex &current)
+{
+	showPage(current.isValid() ? m_proxyModel->mapToSource(current).row() : -1);
+}
+
+bool PageContainer::requestClose(QCloseEvent * event)
+{
+	for(auto page: m_model->pages())
+	{
+		if(!page->apply())
+			return false;
+	}
+	return true;
+}

gui/widgets/PageContainer.h

@@ -0,0 +1,59 @@
+/* Copyright 2014 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+#include <QWidget>
+#include <QModelIndex>
+#include <gui/pages/BasePageProvider.h>
+
+class IconLabel;
+class QSortFilterProxyModel;
+class PageModel;
+class QLabel;
+class QListView;
+class QLineEdit;
+class QStackedLayout;
+class QGridLayout;
+
+class PageContainer : public QWidget
+{
+	Q_OBJECT
+public:
+	explicit PageContainer(BasePageProviderPtr pageProvider, QString defaultId = QString(),
+						QWidget *parent = 0);
+	virtual ~PageContainer() {};
+
+	void addButtons(QWidget * buttons);
+	bool requestClose(QCloseEvent *event);
+
+private:
+	void createUI();
+private
+slots:
+	void currentChanged(const QModelIndex &current);
+	void showPage(int row);
+	void help();
+
+private:
+	BasePage * m_currentPage;
+	QSortFilterProxyModel *m_proxyModel;
+	PageModel *m_model;
+	QStackedLayout *m_pageStack;
+	QLineEdit *m_filter;
+	QListView *m_pageList;
+	QLabel *m_header;
+	IconLabel *m_iconHeader;
+	QGridLayout *m_layout;
+};

gui/widgets/PageContainer_p.h

@@ -0,0 +1,106 @@
+#pragma once
+#include <QListView>
+#include <QStyledItemDelegate>
+#include <QEvent>
+#include <QScrollBar>
+
+class BasePage;
+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;
+	}
+
+	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);
+	}
+};