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profile: port picture code to qt-quick

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This was very painful, because I had to implement rearranging the
paint order of the QSGNodes. The resulting code appears quite
brittle. Let's see where that brings us.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2023-08-12 22:59:56 +02:00
parent d0c26f42d7
commit ebf9ce6d86
22 changed files with 979 additions and 592 deletions
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91
profile-widget/pictureitem.cpp Normal file
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// SPDX-License-Identifier: GPL-2.0
#include "pictureitem.h"
#include "zvalues.h"
#include <cmath>
static constexpr double scaleFactor = 0.2;
static constexpr double shadowSize = 5.0;
static constexpr double removeIconSize = 20.0;
PictureItem::PictureItem(ChartView &view, double dpr) :
ChartPixmapItem(view, ProfileZValue::Pictures, false),
dpr(dpr)
{
setScale(scaleFactor); // Start small
}
PictureItem::~PictureItem()
{
}
void PictureItem::setPixmap(const QPixmap &picture)
{
static QPixmap removeIcon = QPixmap(":list-remove-icon");
int shadowSizeInt = lrint(shadowSize * dpr);
resize(QSizeF(picture.width() + shadowSizeInt, picture.height() + shadowSizeInt)); // initializes canvas
img->fill(Qt::transparent);
painter->setPen(Qt::NoPen);
painter->setBrush(QColor(Qt::lightGray));
painter->drawRect(shadowSizeInt, shadowSizeInt, picture.width(), picture.height());
painter->drawPixmap(0, 0, picture, 0, 0, picture.width(), picture.height());
int removeIconSizeInt = lrint(::removeIconSize * dpr);
QPixmap icon = removeIcon.scaledToWidth(removeIconSizeInt, Qt::SmoothTransformation);
removeIconRect = QRect(picture.width() - icon.width(), 0, icon.width(), icon.height());
painter->drawPixmap(picture.width() - icon.width(), 0, icon, 0, 0, icon.width(), icon.height());
}
double PictureItem::left() const
{
return rect.left();
}
double PictureItem::right() const
{
return rect.right();
}
bool PictureItem::underMouse(QPointF pos) const
{
return rect.contains(pos);
}
bool PictureItem::removeIconUnderMouse(QPointF pos) const
{
if (!underMouse(pos))
return false;
QPointF pos_rel = (pos - rect.topLeft()) / scale;
return removeIconRect.contains(pos_rel);
}
void PictureItem::initAnimation(double scale, int animSpeed)
{
if (animSpeed <= 0)
return setScale(1.0);
fromScale = this->scale;
toScale = scale;
}
void PictureItem::grow(int animSpeed)
{
initAnimation(1.0, animSpeed);
}
void PictureItem::shrink(int animSpeed)
{
initAnimation(scaleFactor, animSpeed);
}
static double mid(double from, double to, double fraction)
{
return fraction == 1.0 ? to
: from + (to - from) * fraction;
}
void PictureItem::anim(double progress)
{
setScale(mid(fromScale, toScale, progress));
setPositionDirty();
}