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https://github.com/f4exb/sdrangel.git
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130 lines
4.1 KiB
C++
130 lines
4.1 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany //
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// written by Christian Daniel //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#include <QPainter>
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#include "gui/scale.h"
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Scale::Scale(QWidget* parent) :
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QWidget(parent)
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{
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}
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void Scale::setOrientation(Qt::Orientation orientation)
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{
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m_orientation = orientation;
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m_scaleEngine.setOrientation(orientation);
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m_scaleEngine.setFont(font());
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QFontMetrics fm(font());
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switch(m_orientation) {
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case Qt::Horizontal:
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m_scaleEngine.setSize(width());
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setMinimumWidth(0);
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setMaximumWidth(QWIDGETSIZE_MAX);
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setMinimumHeight(3 + fontMetrics().ascent());
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setMaximumHeight(3 + fontMetrics().ascent());
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break;
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case Qt::Vertical:
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m_scaleEngine.setSize(height());
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setMinimumWidth(30);
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setMaximumWidth(30);
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setMinimumHeight(0);
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setMaximumHeight(QWIDGETSIZE_MAX);
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break;
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}
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}
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void Scale::setRange(Unit::Physical physicalUnit, float rangeMin, float rangeMax)
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{
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m_scaleEngine.setRange(physicalUnit, rangeMin, rangeMax);
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update();
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}
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void Scale::paintEvent(QPaintEvent*)
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{
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QPainter painter(this);
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const ScaleEngine::TickList& tickList = m_scaleEngine.getTickList();
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QFontMetricsF fontMetrics(font());
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const ScaleEngine::Tick* tick;
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int i;
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float bottomLine;
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switch(m_orientation) {
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case Qt::Horizontal: {
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painter.setPen(Qt::black);
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// Zwischenlinien für x-Achse zeichnen
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for(i = 0; i < tickList.count(); i++) {
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tick = &tickList[i];
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if(!tick->major)
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painter.drawLine(QLineF(tick->pos, 0, tick->pos, 1));
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}
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// Skala am Rand zeichnen
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painter.drawLine(QLineF(0, 0, width() - 1, 0));
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// Hauptlinien und Beschriftung für x-Achse zeichnen
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for(i = 0; i < tickList.count(); i++) {
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tick = &tickList[i];
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if(tick->major) {
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painter.drawLine(QLineF(tick->pos - 1, 0, tick->pos - 1, 3));
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if(tick->textSize > 0) {
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painter.drawText(QPointF(tick->textPos, 3 + fontMetrics.ascent()), tick->text);
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}
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}
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}
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break;
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}
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case Qt::Vertical: {
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bottomLine = height() - 1;
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painter.setPen(Qt::black);
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// Zwischenlinien für y-Achse zeichnen
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for(i = 0; i < tickList.count(); i++) {
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tick = &tickList[i];
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if(!tick->major)
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painter.drawLine(QLineF(width() - 2, bottomLine - tick->pos, width() - 1, bottomLine - tick->pos));
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}
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// Skala am Rand zeichnen
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painter.drawLine(QLineF(width() - 1, 0, width() - 1, height() - 1));
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// Hauptlinien und Beschriftung für y-Achse zeichnen
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for(i = 0; i < tickList.count(); i++) {
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tick = &tickList[i];
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if(tick->major) {
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painter.drawLine(QLineF(width() - 4, bottomLine - tick->pos, width() - 1, bottomLine - tick->pos));
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if(tick->textSize > 0)
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painter.drawText(QPointF(width() - 4 - tick->textSize, bottomLine - tick->textPos), tick->text);
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}
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}
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}
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}
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}
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void Scale::resizeEvent(QResizeEvent*)
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{
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switch(m_orientation) {
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case Qt::Horizontal:
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m_scaleEngine.setSize(width());
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break;
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case Qt::Vertical:
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m_scaleEngine.setSize(height());
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break;
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}
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}
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