mirror of
https://github.com/tumic0/GPXSee.git
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105 lines
3.1 KiB
C++
105 lines
3.1 KiB
C++
#include <QFont>
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#include <QFontMetrics>
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#include <QImage>
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#include <QPainter>
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#include <QStaticText>
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#include "textpointitem.h"
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#define FLAGS (Qt::AlignCenter | Qt::TextWordWrap | Qt::TextDontClip)
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#define MAX_TEXT_WIDTH 8
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#define MIN_BOX_WIDTH 2
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static void expand(QRectF &rect, int width)
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{
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rect.adjust(-(width/2 - rect.width()/2), 0, width/2 - rect.width()/2, 0);
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}
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TextPointItem::TextPointItem(const QPoint &point, const QString *text,
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const QFont *font, const QImage *img, const QColor *color,
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const QColor *haloColor, const QColor *bgColor, int padding)
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: TextItem(font ? text : 0), _font(font), _img(img), _color(color),
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_haloColor(haloColor), _bgColor(bgColor)
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{
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if (_text) {
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QFontMetrics fm(*_font);
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int limit = _font->pixelSize() * MAX_TEXT_WIDTH;
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_textRect = fm.boundingRect(QRect(0, 0, limit, 0), FLAGS, *_text);
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_textRect.adjust(0, 0, 1, 1);
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if (_bgColor && _textRect.width() < _font->pixelSize() * MIN_BOX_WIDTH)
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expand(_textRect, _font->pixelSize() * MIN_BOX_WIDTH);
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}
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setPos(point, padding);
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}
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void TextPointItem::setPos(const QPoint &point, int padding)
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{
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QPainterPath shape;
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QRectF iconRect;
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if (_img && !_img->isNull()) {
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QSizeF s(_img->size() / _img->devicePixelRatioF());
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iconRect = QRectF(QPointF(point.x() - s.width() / 2,
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point.y() - s.height()/2), s);
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_textRect.moveTopLeft(QPointF(point.x() + s.width()/2 + padding,
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point.y() - _textRect.height()/2));
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} else
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_textRect.moveCenter(point);
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_rect = _textRect | iconRect;
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shape.addRect(_rect);
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_shape = shape;
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}
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void TextPointItem::paint(QPainter *painter) const
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{
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if (_img && !_img->isNull()) {
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QSizeF s(_img->size() / _img->devicePixelRatioF());
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painter->drawImage(QPointF(_rect.left(), _rect.center().y()
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- s.height()/2), *_img);
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}
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if (_text) {
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if (_bgColor) {
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painter->setPen(*_color);
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painter->setBrush(*_bgColor);
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painter->drawRect(_textRect);
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painter->setBrush(Qt::NoBrush);
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painter->setFont(*_font);
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painter->drawText(_textRect, FLAGS, *_text);
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} else if (_haloColor) {
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QStaticText st(*_text);
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st.setTextFormat(Qt::PlainText);
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st.setTextWidth(_textRect.width());
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st.setTextOption(QTextOption(Qt::AlignHCenter));
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st.setPerformanceHint(QStaticText::AggressiveCaching);
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painter->setPen(*_haloColor);
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painter->setFont(*_font);
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painter->drawStaticText(_textRect.topLeft() + QPointF(-1, -1), st);
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painter->drawStaticText(_textRect.topLeft() + QPointF(+1, +1), st);
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painter->drawStaticText(_textRect.topLeft() + QPointF(-1, +1), st);
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painter->drawStaticText(_textRect.topLeft() + QPointF(+1, -1), st);
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painter->drawStaticText(_textRect.topLeft() + QPointF(0, -1), st);
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painter->drawStaticText(_textRect.topLeft() + QPointF(0, +1), st);
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painter->drawStaticText(_textRect.topLeft() + QPointF(-1, 0), st);
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painter->drawStaticText(_textRect.topLeft() + QPointF(+1, 0), st);
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painter->setPen(*_color);
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painter->drawStaticText(_textRect.topLeft(), st);
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} else {
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painter->setPen(*_color);
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painter->setFont(*_font);
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painter->drawText(_textRect, FLAGS, *_text);
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}
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}
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//painter->setPen(Qt::red);
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//painter->setRenderHint(QPainter::Antialiasing, false);
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//painter->drawRect(_rect);
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}
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