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Code Issues Releases Wiki Activity

Add gain label to equalizerSlider

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This commit is contained in:
Santi 2016-01-20 03:25:05 -03:00
parent 9056963225
commit ec89bd3ea2
3 changed files with 56 additions and 5 deletions
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20
src/widgets/equalizerslider.cpp
View File

@ -21,9 +21,25 @@
EqualizerSlider::EqualizerSlider(const QString& label, QWidget* parent)
: QWidget(parent), ui_(new Ui_EqualizerSlider) {
ui_->setupUi(this);
ui_->label->setText(label);
ui_->band->setText(label); // Band [Hz]
connect(ui_->slider, SIGNAL(valueChanged(int)), SIGNAL(ValueChanged(int)));
QFontMetrics fm = ui_->gain->fontMetrics();
int longestLabelWidth = fm.width(tr("%1 dB").arg(-99.99));
ui_->gain->setMinimumWidth(longestLabelWidth);
ui_->gain->setText(tr("%1 dB").arg(0)); // Gain [dB]
ui_->slider->setValue(0);
connect(ui_->slider, SIGNAL(valueChanged(int)), this,
SLOT(onValueChanged(int)));
}
void EqualizerSlider::onValueChanged(int value) {
// Converting % to dB as per GstEnginePipeline::UpdateEqualizer():
float gain = (value < 0) ? value * 0.24 : value * 0.12;
ui_->gain->setText(tr("%1 dB").arg(gain)); // Gain [dB]
emit ValueChanged(value);
}
EqualizerSlider::~EqualizerSlider() { delete ui_; }

4
src/widgets/equalizerslider.h
View File

@ -19,6 +19,7 @@
#define EQUALISERSLIDER_H
#include <QWidget>
#include <QFontMetrics>
class Ui_EqualizerSlider;
@ -33,6 +34,9 @@ class EqualizerSlider : public QWidget {
int value() const;
void set_value(int value);
public slots:
void onValueChanged(int value);
signals:
void ValueChanged(int value);

37
src/widgets/equalizerslider.ui
View File

@ -6,7 +6,7 @@
<rect>
<x>0</x>
<y>0</y>
<width>33</width>
<width>34</width>
<height>224</height>
</rect>
</property>
@ -20,7 +20,16 @@
<string>Form</string>
</property>
<layout class="QVBoxLayout" name="verticalLayout">
<property name="margin">
<property name="leftMargin">
<number>0</number>
</property>
<property name="topMargin">
<number>0</number>
</property>
<property name="rightMargin">
<number>0</number>
</property>
<property name="bottomMargin">
<number>0</number>
</property>
<item>
@ -73,7 +82,29 @@
</layout>
</item>
<item>
<widget class="QLabel" name="label">
<widget class="QLabel" name="band">
<property name="enabled">
<bool>true</bool>
</property>
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
</widget>
</item>
<item>
<widget class="QLabel" name="gain">
<property name="sizePolicy">
<sizepolicy hsizetype="Minimum" vsizetype="Preferred">
<horstretch>0</horstretch>
<verstretch>0</verstretch>
</sizepolicy>
</property>
<property name="toolTip">
<string notr="true"/>
</property>
<property name="text">
<string/>
</property>
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>