Move qt-ui to desktop-widgets

Since we have now destkop and mobile versions, 'qt-ui' was a very
poor name choice for a folder that contains only destkop-enabled
widgets.

Also, move the graphicsview-common.h/cpp to subsurface-core because
it doesn't depend on qgraphicsview, it merely implements all the
colors that we use throughout Subsurface, and we will use colors on both
desktop and mobile versions

Same thing applies for metrics.h/cpp

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 151 insertions, 0 deletions

diff --git a/desktop-widgets/usermanual.cpp b/desktop-widgets/usermanual.cpp
new file mode 100644
index 000000000..6b676f16b
--- /dev/null
+++ b/desktop-widgets/usermanual.cpp
@@ -0,0 +1,151 @@
+#include <QDesktopServices>
+#include <QShortcut>
+#include <QFile>
+
+#include "usermanual.h"
+#include "mainwindow.h"
+#include "helpers.h"
+
+SearchBar::SearchBar(QWidget *parent): QWidget(parent)
+{
+	ui.setupUi(this);
+	#if defined(Q_OS_MAC) || defined(Q_OS_WIN)
+	ui.findNext->setIcon(QIcon(":icons/subsurface/32x32/actions/go-down.png"));
+	ui.findPrev->setIcon(QIcon(":icons/subsurface/32x32/actions/go-up.png"));
+	ui.findClose->setIcon(QIcon(":icons/subsurface/32x32/actions/window-close.png"));
+	#endif
+
+	connect(ui.findNext, SIGNAL(pressed()), this, SIGNAL(searchNext()));
+	connect(ui.findPrev, SIGNAL(pressed()), this, SIGNAL(searchPrev()));
+	connect(ui.searchEdit, SIGNAL(textChanged(QString)), this, SIGNAL(searchTextChanged(QString)));
+	connect(ui.searchEdit, SIGNAL(textChanged(QString)), this, SLOT(enableButtons(QString)));
+	connect(ui.findClose, SIGNAL(pressed()), this, SLOT(hide()));
+}
+
+void SearchBar::setVisible(bool visible)
+{
+	QWidget::setVisible(visible);
+	ui.searchEdit->setFocus();
+}
+
+void SearchBar::enableButtons(const QString &s)
+{
+	ui.findPrev->setEnabled(s.length());
+	ui.findNext->setEnabled(s.length());
+}
+
+UserManual::UserManual(QWidget *parent) : QWidget(parent)
+{
+	QShortcut *closeKey = new QShortcut(QKeySequence(Qt::CTRL + Qt::Key_W), this);
+	connect(closeKey, SIGNAL(activated()), this, SLOT(close()));
+	QShortcut *quitKey = new QShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q), this);
+	connect(quitKey, SIGNAL(activated()), qApp, SLOT(quit()));
+
+	QAction *actionShowSearch = new QAction(this);
+	actionShowSearch->setShortcut(Qt::CTRL + Qt::Key_F);
+	actionShowSearch->setShortcutContext(Qt::WindowShortcut);
+	addAction(actionShowSearch);
+
+	QAction *actionHideSearch = new QAction(this);
+	actionHideSearch->setShortcut(Qt::Key_Escape);
+	actionHideSearch->setShortcutContext(Qt::WindowShortcut);
+	addAction(actionHideSearch);
+
+	setWindowTitle(tr("User manual"));
+	setWindowIcon(QIcon(":/subsurface-icon"));
+
+	userManual = new QWebView(this);
+	QString colorBack = palette().highlight().color().name(QColor::HexRgb);
+	QString colorText = palette().highlightedText().color().name(QColor::HexRgb);
+	userManual->setStyleSheet(QString("QWebView { selection-background-color: %1; selection-color: %2; }")
+		.arg(colorBack).arg(colorText));
+	userManual->page()->setLinkDelegationPolicy(QWebPage::DelegateExternalLinks);
+	QString searchPath = getSubsurfaceDataPath("Documentation");
+	if (searchPath.size()) {
+		// look for localized versions of the manual first
+		QString lang = uiLanguage(NULL);
+		QString prefix = searchPath.append("/user-manual");
+		QFile manual(prefix + "_" + lang + ".html");
+		if (!manual.exists())
+			manual.setFileName(prefix + "_" + lang.left(2) + ".html");
+		if (!manual.exists())
+			manual.setFileName(prefix + ".html");
+		if (!manual.exists()) {
+			userManual->setHtml(tr("Cannot find the Subsurface manual"));
+		} else {
+			QString urlString = QString("file:///") + manual.fileName();
+			userManual->setUrl(QUrl(urlString, QUrl::TolerantMode));
+		}
+	} else {
+		userManual->setHtml(tr("Cannot find the Subsurface manual"));
+	}
+
+	searchBar = new SearchBar(this);
+	searchBar->hide();
+	connect(actionShowSearch, SIGNAL(triggered(bool)), searchBar, SLOT(show()));
+	connect(actionHideSearch, SIGNAL(triggered(bool)), searchBar, SLOT(hide()));
+	connect(userManual, SIGNAL(linkClicked(QUrl)), this, SLOT(linkClickedSlot(QUrl)));
+	connect(searchBar, SIGNAL(searchTextChanged(QString)), this, SLOT(searchTextChanged(QString)));
+	connect(searchBar, SIGNAL(searchNext()), this, SLOT(searchNext()));
+	connect(searchBar, SIGNAL(searchPrev()), this, SLOT(searchPrev()));
+
+	QVBoxLayout *vboxLayout = new QVBoxLayout();
+	userManual->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Expanding);
+	vboxLayout->addWidget(userManual);
+	vboxLayout->addWidget(searchBar);
+	setLayout(vboxLayout);
+}
+
+void UserManual::search(QString text, QWebPage::FindFlags flags = 0)
+{
+	if (userManual->findText(text, QWebPage::FindWrapsAroundDocument | flags) || text.length() == 0) {
+		searchBar->setStyleSheet("");
+	} else {
+		searchBar->setStyleSheet("QLineEdit{background: red;}");
+	}
+}
+
+void UserManual::searchTextChanged(const QString& text)
+{
+	mLastText = text;
+	search(text);
+}
+
+void UserManual::searchNext()
+{
+	search(mLastText);
+}
+
+void UserManual::searchPrev()
+{
+	search(mLastText, QWebPage::FindBackward);
+}
+
+void UserManual::linkClickedSlot(const QUrl& url)
+{
+	QDesktopServices::openUrl(url);
+}
+
+#ifdef Q_OS_MAC
+void UserManual::showEvent(QShowEvent *e) {
+	filterAction = NULL;
+	closeAction = NULL;
+	MainWindow *m = MainWindow::instance();
+	Q_FOREACH (QObject *o, m->children()) {
+		if (o->objectName() == "actionFilterTags") {
+			filterAction = qobject_cast<QAction*>(o);
+			filterAction->setShortcut(QKeySequence());
+		} else if (o->objectName() == "actionClose") {
+			closeAction  = qobject_cast<QAction*>(o);
+			closeAction->setShortcut(QKeySequence());
+		}
+	}
+}
+void UserManual::hideEvent(QHideEvent *e) {
+	if (closeAction != NULL)
+		closeAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_W));
+	if (filterAction != NULL)
+		filterAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_F));
+	closeAction = filterAction = NULL;
+}
+#endif