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, 145 insertions, 0 deletions

diff --git a/desktop-widgets/tableview.cpp b/desktop-widgets/tableview.cpp
new file mode 100644
index 000000000..40d5199ec
--- /dev/null
+++ b/desktop-widgets/tableview.cpp
@@ -0,0 +1,145 @@
+#include "tableview.h"
+#include "modeldelegates.h"
+
+#include <QPushButton>
+#include <QSettings>
+
+TableView::TableView(QWidget *parent) : QGroupBox(parent)
+{
+	ui.setupUi(this);
+	ui.tableView->setItemDelegate(new DiveListDelegate(this));
+
+	QFontMetrics fm(defaultModelFont());
+	int text_ht = fm.height();
+
+	metrics.icon = &defaultIconMetrics();
+
+	metrics.rm_col_width = metrics.icon->sz_small + 2*metrics.icon->spacing;
+	metrics.header_ht = text_ht + 10; // TODO DPI
+
+	/* We want to get rid of the margin around the table, but
+	 * we must be careful with some styles (e.g. GTK+) where the top
+	 * margin is actually used to hold the label. We thus check the
+	 * rectangles for the label and contents to make sure they do not
+	 * overlap, and adjust the top contentsMargin accordingly
+	 */
+
+	// start by setting all the margins at zero
+	QMargins margins;
+
+	// grab the label and contents dimensions and positions
+	QStyleOptionGroupBox option;
+	initStyleOption(&option);
+	QRect labelRect = style()->subControlRect(QStyle::CC_GroupBox, &option, QStyle::SC_GroupBoxLabel, this);
+	QRect contentsRect = style()->subControlRect(QStyle::CC_GroupBox, &option, QStyle::SC_GroupBoxContents, this);
+
+	/* we need to ensure that the bottom of the label is higher
+	 * than the top of the contents */
+	int delta = contentsRect.top() - labelRect.bottom();
+	const int min_gap = metrics.icon->spacing;
+	if (delta <= min_gap) {
+		margins.setTop(min_gap - delta);
+	}
+	layout()->setContentsMargins(margins);
+
+	QIcon plusIcon(":plus");
+	plusBtn = new QPushButton(plusIcon, QString(), this);
+	plusBtn->setFlat(true);
+
+	/* now determine the icon and button size. Since the button will be
+	 * placed in the label, make sure that we do not overflow, as it might
+	 * get clipped
+	 */
+	int iconSize = metrics.icon->sz_small;
+	int btnSize = iconSize + 2*min_gap;
+	if (btnSize > labelRect.height()) {
+		btnSize = labelRect.height();
+		iconSize = btnSize - 2*min_gap;
+	}
+	plusBtn->setIconSize(QSize(iconSize, iconSize));
+	plusBtn->resize(btnSize, btnSize);
+	connect(plusBtn, SIGNAL(clicked(bool)), this, SIGNAL(addButtonClicked()));
+}
+
+TableView::~TableView()
+{
+	QSettings s;
+	s.beginGroup(objectName());
+	// remove the old default
+	bool oldDefault = (ui.tableView->columnWidth(0) == 30);
+	for (int i = 1; oldDefault && i < ui.tableView->model()->columnCount(); i++) {
+		if (ui.tableView->columnWidth(i) != 80)
+			oldDefault = false;
+	}
+	if (oldDefault) {
+		s.remove("");
+	} else {
+		for (int i = 0; i < ui.tableView->model()->columnCount(); i++) {
+			if (ui.tableView->columnWidth(i) == defaultColumnWidth(i))
+				s.remove(QString("colwidth%1").arg(i));
+			else
+				s.setValue(QString("colwidth%1").arg(i), ui.tableView->columnWidth(i));
+		}
+	}
+	s.endGroup();
+}
+
+void TableView::setBtnToolTip(const QString &tooltip)
+{
+	plusBtn->setToolTip(tooltip);
+}
+
+void TableView::setModel(QAbstractItemModel *model)
+{
+	ui.tableView->setModel(model);
+	connect(ui.tableView, SIGNAL(clicked(QModelIndex)), model, SLOT(remove(QModelIndex)));
+
+	QSettings s;
+	s.beginGroup(objectName());
+	const int columnCount = ui.tableView->model()->columnCount();
+	for (int i = 0; i < columnCount; i++) {
+		QVariant width = s.value(QString("colwidth%1").arg(i), defaultColumnWidth(i));
+		ui.tableView->setColumnWidth(i, width.toInt());
+	}
+	s.endGroup();
+
+	ui.tableView->horizontalHeader()->setMinimumHeight(metrics.header_ht);
+}
+
+void TableView::fixPlusPosition()
+{
+	QStyleOptionGroupBox option;
+	initStyleOption(&option);
+	QRect labelRect = style()->subControlRect(QStyle::CC_GroupBox, &option, QStyle::SC_GroupBoxLabel, this);
+	QRect contentsRect = style()->subControlRect(QStyle::CC_GroupBox, &option, QStyle::QStyle::SC_GroupBoxFrame, this);
+	plusBtn->setGeometry( contentsRect.width() - plusBtn->width(), labelRect.y(), plusBtn->width(), labelRect.height());
+}
+
+// We need to manually position the 'plus' on cylinder and weight.
+void TableView::resizeEvent(QResizeEvent *event)
+{
+	fixPlusPosition();
+	QWidget::resizeEvent(event);
+}
+
+void TableView::showEvent(QShowEvent *event)
+{
+	QWidget::showEvent(event);
+	fixPlusPosition();
+}
+
+void TableView::edit(const QModelIndex &index)
+{
+	ui.tableView->edit(index);
+}
+
+int TableView::defaultColumnWidth(int col)
+{
+	QString text = ui.tableView->model()->headerData(col, Qt::Horizontal).toString();
+	return text.isEmpty() ? metrics.rm_col_width : defaultModelFontMetrics().width(text) + 4; // add small margin
+}
+
+QTableView *TableView::view()
+{
+	return ui.tableView;
+}