jthedering
3d8ef28d1b
Improved: Updated Qt to version 5.7 Fixed: The GUI for the Channel command was showing the wrong channels as selected when channel numbers were used instead of names.
106 lines
3.6 KiB
C++
106 lines
3.6 KiB
C++
/*
|
|
This file is part of EqualizerAPO, a system-wide equalizer.
|
|
Copyright (C) 2015 Jonas Thedering
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License along
|
|
with this program; if not, write to the Free Software Foundation, Inc.,
|
|
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#include <QWheelEvent>
|
|
|
|
#include "Editor/helpers/DPIHelper.h"
|
|
#include "FrequencyPlotView.h"
|
|
#include "FrequencyPlotScene.h"
|
|
#include "FrequencyPlotVRuler.h"
|
|
|
|
FrequencyPlotVRuler::FrequencyPlotVRuler(QWidget* parent)
|
|
: QWidget(parent)
|
|
{
|
|
}
|
|
|
|
void FrequencyPlotVRuler::paintEvent(QPaintEvent*)
|
|
{
|
|
QPainter painter(this);
|
|
painter.setRenderHint(QPainter::Antialiasing);
|
|
FrequencyPlotView* view = qobject_cast<FrequencyPlotView*>(parentWidget());
|
|
FrequencyPlotScene* s = view->scene();
|
|
|
|
QPointF topLeft = view->mapToScene(0, 0);
|
|
QPointF bottomRight = view->mapToScene(view->viewport()->width(), view->viewport()->height());
|
|
double dbStep = abs(s->yToDb(0) - s->yToDb(DPIHelper::scale(30)));
|
|
|
|
double dbBase = pow(10, floor(log10(dbStep)));
|
|
if (dbStep >= 5 * dbBase)
|
|
dbStep = 5 * dbBase;
|
|
else if (dbStep >= 2 * dbBase)
|
|
dbStep = 2 * dbBase;
|
|
else
|
|
dbStep = dbBase;
|
|
|
|
double fromDb = floor(s->yToDb(topLeft.y()) / dbStep) * dbStep;
|
|
double toDb = ceil(s->yToDb(bottomRight.y()) / dbStep) * dbStep;
|
|
|
|
painter.setPen(QColor(50, 50, 50));
|
|
for (double db = toDb; db <= fromDb; db += dbStep)
|
|
{
|
|
if (abs(db) < 1e-6)
|
|
db = 0;
|
|
double y = s->dbToY(db);
|
|
if (y != -1)
|
|
painter.drawText(0, y - topLeft.y() - 1, width(), 0, Qt::TextDontClip | Qt::AlignCenter, QString("%0").arg(db));
|
|
}
|
|
|
|
QPoint mousePos = view->getLastMousePos();
|
|
if (!mousePos.isNull())
|
|
{
|
|
QPointF mouseScenePos = view->mapToScene(mousePos);
|
|
|
|
double db = s->yToDb(mouseScenePos.y());
|
|
double y = s->dbToY(db);
|
|
if (y != -1)
|
|
{
|
|
QString text = QString("%0").arg(db, 0, 'f', 1);
|
|
QFontMetrics metrics = painter.fontMetrics();
|
|
QRectF rect = metrics.boundingRect(text);
|
|
float center = y - topLeft.y() - 1;
|
|
rect = QRectF(ceil(width() / 2) - ceil(rect.width() / 2) - 2.5, center - rect.height() / 2 + 1, rect.width() + 3, rect.height());
|
|
QPainterPath path;
|
|
path.addRect(rect);
|
|
QPainterPath rightTriangle;
|
|
rightTriangle.moveTo(QPoint(rect.right(), center - 2));
|
|
rightTriangle.lineTo(QPoint(rect.right(), center + 4));
|
|
rightTriangle.lineTo(QPoint(rect.right() + 4, center + 1));
|
|
path = path.united(rightTriangle);
|
|
|
|
painter.setPen(Qt::black);
|
|
painter.setBrush(Qt::white);
|
|
painter.drawPath(path);
|
|
painter.setPen(Qt::blue);
|
|
painter.drawText(0, center, width() - 2, 0, Qt::TextDontClip | Qt::AlignCenter, text);
|
|
}
|
|
}
|
|
}
|
|
|
|
void FrequencyPlotVRuler::wheelEvent(QWheelEvent* event)
|
|
{
|
|
FrequencyPlotView* view = qobject_cast<FrequencyPlotView*>(parentWidget());
|
|
view->zoom(0, event->angleDelta().y(), 0, event->y());
|
|
}
|
|
|
|
void FrequencyPlotVRuler::mouseMoveEvent(QMouseEvent* event)
|
|
{
|
|
FrequencyPlotView* view = qobject_cast<FrequencyPlotView*>(parentWidget());
|
|
view->setLastMousePos(QPoint(0, min(event->y(), view->viewport()->height() - 1)));
|
|
}
|