diff options
Diffstat (limited to 'tagitem.cpp')
| -rw-r--r-- | tagitem.cpp | 53 |
1 files changed, 44 insertions, 9 deletions
diff --git a/tagitem.cpp b/tagitem.cpp index e493b81..01b26fb 100644 --- a/tagitem.cpp +++ b/tagitem.cpp @@ -1,18 +1,22 @@ #include "tagitem.h"
+#include "tagscene.h"
#include <QPainter>
#include <QGuiApplication>
+#include <QGraphicsScene>
+#include <QGraphicsSceneMouseEvent>
TagItem::TagItem(const Tag &tag)
: valid(true)
+ , m_margins(2, 2, 2, 2)
{
- setFlags(QGraphicsItem::ItemIsMovable
- | QGraphicsItem::ItemIsSelectable
+ setFlags(QGraphicsItem::ItemIsSelectable
+ | QGraphicsItem::ItemIsMovable
| QGraphicsItem::ItemIsFocusable
| QGraphicsItem::ItemIgnoresTransformations
| QGraphicsItem::ItemSendsGeometryChanges);
QFont font(QGuiApplication::font());
- font.setPointSize(18);
+ font.setPointSize(12);
setFont(font);
tagUpdated(tag);
}
@@ -29,7 +33,7 @@ QRectF TagItem::boundingRect() const {
QRectF parentRect(QGraphicsSimpleTextItem::boundingRect());
parentRect.translate(-(parentRect.bottomRight() - parentRect.topLeft()) * 0.5);
- return parentRect.marginsAdded(QMargins(5, 5, 5, 5));
+ return parentRect.marginsAdded(m_margins);
}
/* For some reason this is not exposed through the public API so we have to copy-paste it here m( */
@@ -56,7 +60,11 @@ static void paintSelectionHighlightBorder(QPainter *painter, const QStyleOptionG void TagItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
- painter->setBrush(Qt::white);
+ bool selectionHighlight = option->state & (QStyle::State_Selected | QStyle::State_HasFocus);
+ if (selectionHighlight)
+ painter->setBrush(QColor("#80aaaaff"));
+ else
+ painter->setBrush(QColor("#80ffffff"));
painter->drawRect(boundingRect());
QRectF parentRect(QGraphicsSimpleTextItem::boundingRect());
@@ -68,7 +76,7 @@ void TagItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, Q QGraphicsSimpleTextItem::paint(painter, &newOption, widget);
painter->translate(pos);
- if (option->state & (QStyle::State_Selected | QStyle::State_HasFocus))
+ if (selectionHighlight)
paintSelectionHighlightBorder(painter, option, this);
}
@@ -80,13 +88,40 @@ QPainterPath TagItem::shape() const QVariant TagItem::itemChange(QGraphicsItem::GraphicsItemChange change, const QVariant &value)
{
- qDebug() << "itemChange" << m_tag.name << this->boundingRect() << change;
- if (change == ItemPositionChange) {
+ //qDebug() << "itemChange" << m_tag.name << this->boundingRect() << change;
+ if (change == ItemSceneChange) {
+ assert(qvariant_cast<TagScene *>(value)); /* TagItems must only be used in TagScene. */
+ } else if (change == ItemPositionChange) {
+
/* https://gist.github.com/csukuangfj/c2a06416062bec9ed99eddd705c21275#file-qgraphicsscenetest-cpp-L90
*
*/
/* FIXME */
-
}
return QGraphicsItem::itemChange(change, value);
}
+
+void TagItem::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
+{
+ if (event->buttons() & Qt::LeftButton) {
+ QPoint delta = event->screenPos() - event->buttonDownScreenPos(Qt::LeftButton);
+ int pixelThreshold = 10;
+ if (QPoint::dotProduct(delta, delta) > pixelThreshold*pixelThreshold)
+ dragAboveThreshold = true;
+
+ if (!dragAboveThreshold) {
+ // patch up event to prevent small movements
+ event->setPos(event->buttonDownPos(Qt::LeftButton));
+ event->setScenePos(event->buttonDownScenePos(Qt::LeftButton));
+ event->setScreenPos(event->buttonDownScreenPos(Qt::LeftButton));
+ }
+ }
+ QGraphicsItem::mouseMoveEvent(event);
+}
+
+void TagItem::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
+{
+ Q_UNUSED(event);
+ dragAboveThreshold = false;
+ QGraphicsItem::mouseReleaseEvent(event);
+}
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