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Adds real support for ToolTips.

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This patch changes the Event drawing so it can display tooltips. It is now
the responsibility of the item to show / hide a tooltip.

A bit of code-refactoring got on here too because I was using only
QGraphicsItem calls and I wanted to use a hover in / hover out event
to show / hide the tooltip.

Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Dirk Hohndel 2013-05-07 16:09:51 -07:00
parent c928b9cb94
commit d590cb9519
2 changed files with 160 additions and 60 deletions
Download patch file Download diff file Expand all files Collapse all files

181
qt-ui/profilegraphics.cpp
View file

@ -10,6 +10,7 @@
#include <QSettings>
#include <QIcon>
#include <QPropertyAnimation>
#include <QGraphicsSceneHoverEvent>
#include "../color.h"
#include "../display.h"
@ -323,32 +324,13 @@ void ProfileGraphicsView::plot_one_event(struct graphics_context *gc, struct plo
}
/* draw a little triangular marker and attach tooltip */
QPolygonF poly;
poly.push_back(QPointF(-8, 16));
poly.push_back(QPointF(8, 16));
poly.push_back(QPointF(0, 0));
poly.push_back(QPointF(-8, 16));
int x = SCALEX(gc, ev->time.seconds);
int y = SCALEY(gc, depth);
QPen pen = defaultPen;
pen.setBrush(QBrush(profile_color[ALERT_BG].first()));
QGraphicsPolygonItem *triangle = new QGraphicsPolygonItem();
triangle->setPolygon(poly);
triangle->setBrush(QBrush(profile_color[ALERT_BG].first()));
triangle->setPen(pen);
triangle->setFlag(QGraphicsItem::ItemIgnoresTransformations);
triangle->setPos(x, y);
QGraphicsLineItem *line = new QGraphicsLineItem(0,5,0,10, triangle);
line->setPen(defaultPen);
QGraphicsEllipseItem *ball = new QGraphicsEllipseItem(-1, 12, 2,2, triangle);
ball->setBrush(QBrush(Qt::black));
scene()->addItem(triangle);
EventItem *item = new EventItem();
item->setPos(x, y);
scene()->addItem(item);
/* we display the event on screen - so translate */
QString name = tr(ev->name);
@ -373,9 +355,8 @@ void ProfileGraphicsView::plot_one_event(struct graphics_context *gc, struct plo
ev->flags == SAMPLE_FLAGS_END ? tr("Starts with space!", " end") : "";
}
//attach_tooltip(x-6, y, 12, 12, buffer, ev);
//triangle->setToolTip(name);
toolTip->addToolTip(name);
item->setToolTipController(toolTip);
item->addToolTip(name);
}
void ProfileGraphicsView::plot_depth_profile(struct graphics_context *gc, struct plot_info *pi)
@ -639,16 +620,16 @@ void ProfileGraphicsView::resizeEvent(QResizeEvent *event)
void ToolTipItem::addToolTip(const QString& toolTip, const QIcon& icon)
{
qDebug() << "Tooltip Adicionado" << toolTip;
QGraphicsPixmapItem *iconItem = 0;
double yValue = title->boundingRect().height() + SPACING + toolTips.keys().size() * ICON_SMALL + SPACING;
if (!icon.isNull()) {
iconItem = new QGraphicsPixmapItem(icon.pixmap(ICON_SMALL,ICON_SMALL), this);
iconItem->setPos( 4, toolTips.keys().size() * ICON_SMALL + 4);
iconItem->setPos( SPACING, yValue);
}
QGraphicsSimpleTextItem *textItem = new QGraphicsSimpleTextItem(toolTip, this);
textItem->setPos( 4 + ICON_SMALL + 4, toolTips.keys().size() * ICON_SMALL + 4);
textItem->setPos( SPACING + ICON_SMALL + SPACING, yValue);
textItem->setPen(QPen(Qt::white, 1));
textItem->setBrush(QBrush(Qt::white));
textItem->setFlag(ItemIgnoresTransformations);
@ -662,6 +643,22 @@ void ToolTipItem::removeToolTip(const QString& toolTip)
ToolTip toBeRemoved = toolTips[toolTip];
delete toBeRemoved.first;
delete toBeRemoved.second;
toolTips.remove(toolTip);
int toolTipIndex = 0;
// We removed a toolTip, let's move the others to the correct location
Q_FOREACH(ToolTip t, toolTips){
double yValue = title->boundingRect().height() + SPACING + toolTipIndex * ICON_SMALL + SPACING;
// Icons can be null.
if (t.first)
t.first->setPos(SPACING, yValue);
t.second->setPos(SPACING + ICON_SMALL + SPACING, yValue);
toolTipIndex++;
}
expand();
}
@ -700,6 +697,7 @@ void ToolTipItem::setRect(const QRectF& r)
b->setBrush(c);
background = b;
updateTitlePosition();
}
@ -715,30 +713,125 @@ void ToolTipItem::collapse()
void ToolTipItem::expand()
{
QRectF newRect = childrenBoundingRect();
newRect = QRect(0, 0, newRect.width() + 8, newRect.height() + 8);
if (newRect != boundingRect()) {
QRectF newRect = childrenBoundingRect();
QPropertyAnimation *animation = new QPropertyAnimation(this, "rect");
animation->setDuration(100);
animation->setStartValue(boundingRect());
animation->setEndValue(newRect);
animation->start(QAbstractAnimation::DeleteWhenStopped);
QRectF currentRect = rectangle;
QRectF nextRectangle;
double width = 0;
Q_FOREACH(ToolTip t, toolTips) {
if (t.second->boundingRect().width() > width)
width = t.second->boundingRect().width();
}
double height = toolTips.count() * 18 + title->boundingRect().height() + SPACING;
/* Left padding, Icon Size, space, right padding */
width += SPACING + ICON_SMALL + SPACING + SPACING;
if (width < title->boundingRect().width() + SPACING*2)
width = title->boundingRect().width() + SPACING*2;
if( height < ICON_SMALL)
height = ICON_SMALL;
nextRectangle.setWidth(width);
nextRectangle.setHeight(height);
QPropertyAnimation *animation = new QPropertyAnimation(this, "rect");
animation->setDuration(100);
animation->setStartValue(rectangle);
animation->setEndValue(nextRectangle);
animation->start(QAbstractAnimation::DeleteWhenStopped);
}
ToolTipItem::ToolTipItem(QGraphicsItem* parent): QGraphicsPathItem(parent), background(0)
{
setRect(QRectF(0,0,ICON_SMALL, ICON_SMALL));
setFlag(QGraphicsItem::ItemIgnoresTransformations);
setFlag(QGraphicsItem::ItemIsMovable);
title = new QGraphicsSimpleTextItem(tr("Information"), this);
separator = new QGraphicsLineItem(this);
setFlag(ItemIgnoresTransformations);
setFlag(ItemIsMovable);
updateTitlePosition();
setZValue(99);
}
void ToolTipStatusHandler::mousePressEvent(QGraphicsSceneMouseEvent* event)
void ToolTipItem::updateTitlePosition()
{
QGraphicsItem::mousePressEvent(event);
if (rectangle.width() < title->boundingRect().width() + SPACING*4 ){
QRectF newRect = rectangle;
newRect.setWidth(title->boundingRect().width() + SPACING*4);
newRect.setHeight( newRect.height() ? newRect.height() : ICON_SMALL );
setRect(newRect);
}
title->setPos(boundingRect().width()/2 -title->boundingRect().width()/2, 0);
title->setFlag(ItemIgnoresTransformations);
title->setPen(QPen(Qt::white, 1));
title->setBrush(Qt::white);
if (toolTips.size() > 0){
double x1 = 0;
double y1 = title->pos().y() + SPACING/2 + title->boundingRect().height();
double x2 = boundingRect().width() - 4;
double y2 = y1;
separator->setLine(x1, y1, x2, y2);
separator->setFlag(ItemIgnoresTransformations);
separator->setPen(QPen(Qt::white));
}else{
separator->setLine(QLineF());
}
}
ToolTipStatusHandler::ToolTipStatusHandler(QObject* parent): QObject(parent), QGraphicsEllipseItem()
EventItem::EventItem(QGraphicsItem* parent): QGraphicsPolygonItem(parent)
{
setFlag(ItemIgnoresTransformations);
setFlag(ItemIsFocusable);
setAcceptHoverEvents(true);
QPolygonF poly;
poly.push_back(QPointF(-8, 16));
poly.push_back(QPointF(8, 16));
poly.push_back(QPointF(0, 0));
poly.push_back(QPointF(-8, 16));
QPen defaultPen ;
defaultPen.setJoinStyle(Qt::RoundJoin);
defaultPen.setCapStyle(Qt::RoundCap);
defaultPen.setWidth(2);
QPen pen = defaultPen;
pen.setBrush(QBrush(profile_color[ALERT_BG].first()));
setPolygon(poly);
setBrush(QBrush(profile_color[ALERT_BG].first()));
setPen(pen);
QGraphicsLineItem *line = new QGraphicsLineItem(0,5,0,10, this);
line->setPen(QPen(Qt::black, 2));
QGraphicsEllipseItem *ball = new QGraphicsEllipseItem(-1, 12, 2,2, this);
ball->setBrush(QBrush(Qt::black));
}
void EventItem::hoverEnterEvent(QGraphicsSceneHoverEvent* event)
{
controller->addToolTip(text, icon);
}
void EventItem::hoverLeaveEvent(QGraphicsSceneHoverEvent* event)
{
controller->removeToolTip(text);
}
void EventItem::addToolTip(const QString& t, const QIcon& i)
{
text = t;
icon = i;
}
void EventItem::setToolTipController(ToolTipItem* c)
{
controller = c;
}