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144e81e8f8
Move the various font objects the the StatsTheme structure to enable different font weights for different themes. For the dark theme, switch to a bold font, because the thin white font was barely visible. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
78 lines
2.2 KiB
C++
78 lines
2.2 KiB
C++
#include "informationbox.h"
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#include "statscolors.h"
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#include "statsview.h"
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#include "zvalues.h"
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#include <QFontMetrics>
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static const int informationBorder = 2;
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static const double informationBorderRadius = 4.0; // Radius of rounded corners
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static const int distanceFromPointer = 10; // Distance to place box from mouse pointer or scatter item
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InformationBox::InformationBox(StatsView &v) :
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ChartRectItem(v, ChartZValue::InformationBox,
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QPen(v.getCurrentTheme().informationBorderColor, informationBorder),
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QBrush(v.getCurrentTheme().informationColor), informationBorderRadius),
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theme(v.getCurrentTheme()),
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width(0.0),
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height(0.0)
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{
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}
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void InformationBox::setText(const std::vector<QString> &text, QPointF pos)
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{
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QFontMetrics fm(theme.informationBoxFont);
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double fontHeight = fm.height();
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std::vector<double> widths;
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widths.reserve(text.size());
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width = 0.0;
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for (const QString &s: text) {
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widths.push_back(static_cast<double>(fm.size(Qt::TextSingleLine, s).width()));
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width = std::max(width, widths.back());
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}
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width += 4.0 * informationBorder;
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height = widths.size() * fontHeight + 4.0 * informationBorder;
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ChartRectItem::resize(QSizeF(width, height));
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painter->setFont(theme.informationBoxFont);
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painter->setPen(QPen(theme.darkLabelColor)); // QPainter uses QPen to set text color!
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double y = 2.0 * informationBorder;
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for (size_t i = 0; i < widths.size(); ++i) {
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QRectF rect(2.0 * informationBorder, y, widths[i], fontHeight);
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painter->drawText(rect, text[i]);
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y += fontHeight;
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}
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}
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void InformationBox::setPos(QPointF pos)
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{
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QSizeF size = sceneSize();
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double x = pos.x() + distanceFromPointer;
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if (x + width >= size.width()) {
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if (pos.x() - width >= 0.0)
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x = pos.x() - width;
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else
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x = pos.x() - width / 2.0;
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}
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double y = pos.y() + distanceFromPointer;
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if (y + height >= size.height()) {
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if (pos.y() - height >= 0.0)
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y = pos.y() - height;
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else
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y = pos.y() - height / 2.0;
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}
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ChartRectItem::setPos(QPointF(x, y));
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}
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// Try to stay within three-thirds of the chart height
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int InformationBox::recommendedMaxLines() const
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{
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QFontMetrics fm(theme.informationBoxFont);
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int maxHeight = static_cast<int>(sceneSize().height());
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return maxHeight * 2 / fm.height() / 3;
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}
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