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made volume effect use decibels

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This commit is contained in:
itsmattkc
2019-02-09 22:09:42 -08:00
parent 95ed9617b2
commit ca4e39449b
14 changed files with 117 additions and 33 deletions
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ui/labelslider.cpp
+77 -12
View File
@@ -3,6 +3,7 @@
#include "project/undo.h"
#include "panels/viewer.h"
#include "io/config.h"
#include "io/math.h"
#include "debug.h"
#include <QMouseEvent>
@@ -38,7 +39,7 @@ void LabelSlider::set_display_type(int type) {
void LabelSlider::set_value(double v, bool userSet) {
set = true;
if (v != internal_value) {
if (!qFuzzyCompare(v, internal_value)) {
if (min_enabled && v < min_value) {
internal_value = min_value;
} else if (max_enabled && v > max_value) {
@@ -65,8 +66,27 @@ QString LabelSlider::valueToString(double v) {
return "---";
} else {
switch (display_type) {
case LABELSLIDER_FRAMENUMBER: return frame_to_timecode(v, config.timecode_view, frame_rate);
case LABELSLIDER_PERCENT: return QString::number((v*100), 'f', decimal_places) + "%";
case LABELSLIDER_FRAMENUMBER:
return frame_to_timecode(long(v), config.timecode_view, frame_rate);
case LABELSLIDER_PERCENT:
return QString::number((v*100), 'f', decimal_places).append("%");
case LABELSLIDER_DECIBEL:
{
QString db_str;
// -96 dB is considered -infinity
if (amplitude_to_db(v) <= -96) {
// hex sequence for -infinity
db_str = "-\xE2\x88\x9E";
} else {
db_str = QString::number(amplitude_to_db(v), 'f', decimal_places);
}
// add "dB" suffix
db_str.append(" dB");
return db_str;
}
}
return QString::number(v, 'f', decimal_places);
}
@@ -118,7 +138,8 @@ void LabelSlider::mousePressEvent(QMouseEvent *ev) {
if (ev->modifiers() & Qt::AltModifier) {
// if the value is not already default, and there is a default to set
if (internal_value != default_value && !qIsNaN(default_value)) {
if (!qFuzzyCompare(internal_value, default_value)
&& !qIsNaN(default_value)) {
// cache current value
set_previous_value();
@@ -166,11 +187,28 @@ void LabelSlider::mouseMoveEvent(QMouseEvent* event) {
// ctrl + drag drags in smaller increments
if (event->modifiers() & Qt::ControlModifier) diff *= 0.01;
// we'll also need to drag in smaller increments for a percent value
if (display_type == LABELSLIDER_PERCENT) diff *= 0.01;
if (display_type == LABELSLIDER_PERCENT) {
// we'll also need to drag in smaller increments for a percent value
// sets the value
set_value(internal_value + diff, true);
diff *= 0.01;
}
// determine what the new value will be
double new_value;
if (display_type == LABELSLIDER_DECIBEL) {
// we move in terms of dB for decibel display
new_value = db_to_amplitude(amplitude_to_db(internal_value) + diff);
} else {
// for most display types, just add the mouse difference
new_value = internal_value + diff;
}
// set internal value
set_value(new_value, true);
// keep the cursor in the same location while dragging
cursor().setPos(drag_start_x, drag_start_y);
@@ -222,23 +260,50 @@ void LabelSlider::mouseReleaseEvent(QMouseEvent*) {
// ask the user to enter a normal number value
bool ok;
// value to show
double shown_value = internal_value;
if (display_type == LABELSLIDER_PERCENT) {
shown_value *= 100;
} else if (display_type == LABELSLIDER_DECIBEL) {
shown_value = amplitude_to_db(shown_value);
}
// set correct minimum value
double shown_minimum_value;
if (min_enabled) {
// if this field has a minimum value set, use it
shown_minimum_value = min_value;
} else if (display_type == LABELSLIDER_DECIBEL) {
// minimum decibel amount is -96db
shown_minimum_value = -96;
} else {
// lowest possible minimum integer
shown_minimum_value = INT_MIN;
}
// percentages are stored 0.0 - 1.0 but displayed as 0% - 100%
d = QInputDialog::getDouble(
this,
tr("Set Value"),
tr("New value:"),
(display_type == LABELSLIDER_PERCENT) ? internal_value * 100 : internal_value,
(min_enabled) ? min_value : INT_MIN,
shown_value,
shown_minimum_value,
(max_enabled) ? max_value : INT_MAX,
decimal_places,
&ok
);
if (!ok) return;
if (display_type == LABELSLIDER_PERCENT) d *= 0.01;
// convert shown value back to internal value
if (display_type == LABELSLIDER_PERCENT) {
d *= 0.01;
} else if (display_type == LABELSLIDER_DECIBEL) {
d = db_to_amplitude(d);
}
}
// if the value actually changed, trigger a change event
if (d != internal_value) {
if (!qFuzzyCompare(d, internal_value)) {
set_previous_value();
set_value(d, true);
}