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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
#include "selectionindicator.h"
#include "annotation.h"
#include <designeractionmanager.h>
#include <formeditorannotationicon.h>
#include <QPen>
#include <QGraphicsScene>
#include <QGraphicsTextItem>
#include <memory>
#include <abstractview.h>
#include <designeractionmanager.h>
#include <utils/theme/theme.h>
namespace QmlDesigner {
SelectionIndicator::SelectionIndicator(LayerItem *layerItem)
: m_layerItem(layerItem)
{
}
SelectionIndicator::~SelectionIndicator()
{
clear();
}
void SelectionIndicator::show()
{
for (QGraphicsPolygonItem *item : qAsConst(m_indicatorShapeHash))
item->show();
if (m_labelItem)
m_labelItem->show();
}
void SelectionIndicator::hide()
{
for (QGraphicsPolygonItem *item : qAsConst(m_indicatorShapeHash))
item->hide();
if (m_labelItem)
m_labelItem->hide();
}
void SelectionIndicator::clear()
{
if (m_layerItem) {
for (QGraphicsPolygonItem *item : qAsConst(m_indicatorShapeHash)) {
m_layerItem->scene()->removeItem(item);
delete item;
}
}
m_labelItem.reset(nullptr);
m_annotationItem = nullptr;
m_indicatorShapeHash.clear();
}
static QPolygonF boundingRectInLayerItemSpaceForItem(FormEditorItem *item, QGraphicsItem *layerItem)
{
QPolygonF boundingRectInSceneSpace(item->mapToScene(item->qmlItemNode().instanceBoundingRect()));
return layerItem->mapFromScene(boundingRectInSceneSpace);
}
static bool checkSingleSelection(const QList<FormEditorItem*> &itemList)
{
return !itemList.isEmpty()
&& itemList.constFirst()
&& itemList.constFirst()->qmlItemNode().view()->singleSelectedModelNode().isValid();
}
const int labelHeight = 18;
void SelectionIndicator::setItems(const QList<FormEditorItem*> &itemList)
{
clear();
static QColor selectionColor = Utils::creatorTheme()->color(Utils::Theme::QmlDesigner_FormEditorSelectionColor);
for (FormEditorItem *item : itemList) {
if (!item->qmlItemNode().isValid())
continue;
auto newSelectionIndicatorGraphicsItem = new QGraphicsPolygonItem(m_layerItem.data());
m_indicatorShapeHash.insert(item, newSelectionIndicatorGraphicsItem);
newSelectionIndicatorGraphicsItem->setPolygon(boundingRectInLayerItemSpaceForItem(item, m_layerItem.data()));
newSelectionIndicatorGraphicsItem->setFlag(QGraphicsItem::ItemIsSelectable, false);
QPen pen;
pen.setCosmetic(true);
pen.setWidth(2);
pen.setJoinStyle(Qt::MiterJoin);
pen.setColor(selectionColor);
newSelectionIndicatorGraphicsItem->setPen(pen);
}
if (checkSingleSelection(itemList)) {
FormEditorItem *selectedItem = itemList.constFirst();
m_labelItem = std::make_unique<QGraphicsPolygonItem>(m_layerItem.data());
const qreal scaleFactor = m_layerItem->viewportTransform().m11();
QGraphicsWidget *toolbar = DesignerActionManager::instance().createFormEditorToolBar(m_labelItem.get());
toolbar->setPos(1, -1);
ModelNode modelNode = selectedItem->qmlItemNode().modelNode();
QGraphicsTextItem *textItem = new QGraphicsTextItem(modelNode.simplifiedTypeName(), m_labelItem.get());
if (modelNode.hasId())
textItem->setPlainText(modelNode.id());
if (modelNode.hasAnnotation() || modelNode.hasCustomId()) {
m_annotationItem = new FormEditorAnnotationIcon(modelNode, m_labelItem.get());
m_annotationItem->update();
}
else {
m_annotationItem = nullptr;
}
static QColor textColor = Utils::creatorTheme()->color(Utils::Theme::QmlDesigner_FormEditorForegroundColor);
textItem->setDefaultTextColor(textColor);
QPolygonF labelPolygon = boundingRectInLayerItemSpaceForItem(selectedItem, m_layerItem.data());
QRectF labelRect = labelPolygon.boundingRect();
labelRect.setHeight(labelHeight);
labelRect.setWidth(textItem->boundingRect().width() + toolbar->size().width());
QPointF pos = labelRect.topLeft();
labelRect.moveTo(0, 0);
m_labelItem->setPolygon(labelRect);
const int scaledHeight = labelHeight / scaleFactor;
m_labelItem->setPos(pos + QPointF(0, -scaledHeight));
const int offset = (labelHeight - textItem->boundingRect().height()) / 2;
textItem->setPos(QPointF(toolbar->size().width(), offset));
m_labelItem->setFlag(QGraphicsItem::ItemIsSelectable, false);
m_labelItem->setFlag(QGraphicsItem::ItemIgnoresTransformations, true);
QPen pen;
pen.setCosmetic(true);
pen.setWidth(2);
pen.setCapStyle(Qt::RoundCap);
pen.setJoinStyle(Qt::BevelJoin);
pen.setColor(selectionColor);
if (m_annotationItem) {
m_annotationItem->setFlags(QGraphicsItem::ItemIgnoresTransformations);
adjustAnnotationPosition(labelPolygon.boundingRect(), m_labelItem->boundingRect(), scaleFactor);
}
m_labelItem->setPen(pen);
m_labelItem->setBrush(selectionColor);
m_labelItem->update();
}
}
void SelectionIndicator::updateItems(const QList<FormEditorItem*> &itemList)
{
for (FormEditorItem *item : itemList) {
if (m_indicatorShapeHash.contains(item)) {
QGraphicsPolygonItem *indicatorGraphicsItem = m_indicatorShapeHash.value(item);
indicatorGraphicsItem->setPolygon(boundingRectInLayerItemSpaceForItem(item, m_layerItem.data()));
}
}
if (checkSingleSelection(itemList)
&& m_labelItem) {
FormEditorItem *selectedItem = itemList.constFirst();
QPolygonF labelPolygon = boundingRectInLayerItemSpaceForItem(selectedItem, m_layerItem.data());
QRectF labelRect = labelPolygon.boundingRect();
QPointF pos = labelRect.topLeft();
const qreal scaleFactor = m_layerItem->viewportTransform().m11();
const int scaledHeight = labelHeight / scaleFactor;
m_labelItem->setPos(pos + QPointF(0, -scaledHeight));
if (m_annotationItem) {
adjustAnnotationPosition(labelPolygon.boundingRect(), m_labelItem->boundingRect(), scaleFactor);
}
m_layerItem->update();
}
}
void SelectionIndicator::setCursor(const QCursor &cursor)
{
m_cursor = cursor;
for (QGraphicsItem *item : qAsConst(m_indicatorShapeHash))
item->setCursor(cursor);
}
void SelectionIndicator::adjustAnnotationPosition(const QRectF &itemRect, const QRectF &labelRect, qreal scaleFactor)
{
if (!m_annotationItem) return;
const qreal iconWShift = m_annotationItem->iconWidth() * 0.5;
const qreal iconHShift = (m_annotationItem->iconHeight() * 0.45)/scaleFactor;
qreal iconX = 0.0;
qreal iconY = -(iconHShift);
if (((labelRect.width() + iconWShift)/scaleFactor) > itemRect.width())
iconY -= labelRect.height()/scaleFactor;
if ((iconWShift/scaleFactor) > itemRect.width())
iconX = 0.0;
else
iconX = (itemRect.width()) - (iconWShift/scaleFactor);
m_annotationItem->setPos(iconX*scaleFactor, iconY*scaleFactor);
}
}
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