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#include "labelslider.h"
#include "project/undo.h"
#include "panels/viewer.h"
#include "io/config.h"
#include "debug.h"
#include <QMouseEvent>
#include <QInputDialog>
#include <QApplication>
LabelSlider::LabelSlider(QWidget* parent) : QLabel(parent) {
frame_rate = 30;
decimal_places = 1;
drag_start = false;
drag_proc = false;
min_enabled = false;
max_enabled = false;
setStyleSheet("QLabel{color:#ffc000;text-decoration:underline;}QLabel:disabled{color:#808080;}");
setCursor(Qt::SizeHorCursor);
internal_value = -1;
set = false;
display_type = LABELSLIDER_NORMAL;
set_default_value(0);
}
void LabelSlider::set_frame_rate(double d) {
frame_rate = d;
}
void LabelSlider::set_display_type(int type) {
display_type = type;
setText(valueToString(internal_value));
}
void LabelSlider::set_value(double v, bool userSet) {
set = true;
if (v != internal_value) {
if (min_enabled && v < min_value) {
internal_value = min_value;
} else if (max_enabled && v > max_value) {
internal_value = max_value;
} else {
internal_value = v;
}
setText(valueToString(internal_value));
if (userSet) emit valueChanged();
}
}
bool LabelSlider::is_set() {
return set;
}
bool LabelSlider::is_dragging() {
return drag_proc;
}
QString LabelSlider::valueToString(double v) {
if (qIsNaN(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) + "%";
}
return QString::number(v, 'f', decimal_places);
}
}
double LabelSlider::getPreviousValue() {
return previous_value;
}
void LabelSlider::set_previous_value() {
previous_value = internal_value;
}
double LabelSlider::value() {
return internal_value;
}
void LabelSlider::set_default_value(double v) {
default_value = v;
if (!set) {
set_value(v, false);
set = false;
}
}
void LabelSlider::set_minimum_value(double v) {
min_value = v;
min_enabled = true;
}
void LabelSlider::set_maximum_value(double v) {
max_value = v;
max_enabled = true;
}
void LabelSlider::mousePressEvent(QMouseEvent *ev) {
drag_start_value = internal_value;
if (ev->modifiers() & Qt::AltModifier) {
if (internal_value != default_value && !qIsNaN(default_value)) {
set_previous_value();
set_value(default_value, true);
}
} else {
if (qIsNaN(internal_value)) internal_value = 0;
qApp->setOverrideCursor(Qt::BlankCursor);
drag_start = true;
drag_start_x = cursor().pos().x();
drag_start_y = cursor().pos().y();
}
}
void LabelSlider::mouseMoveEvent(QMouseEvent* event) {
if (drag_start) {
drag_proc = true;
double diff = (cursor().pos().x()-drag_start_x) + (drag_start_y-cursor().pos().y());
if (event->modifiers() & Qt::ControlModifier) diff *= 0.01;
if (display_type == LABELSLIDER_PERCENT) diff *= 0.01;
set_value(internal_value + diff, true);
cursor().setPos(drag_start_x, drag_start_y);
}
}
void LabelSlider::mouseReleaseEvent(QMouseEvent*) {
if (drag_start) {
qApp->restoreOverrideCursor();
drag_start = false;
if (drag_proc) {
drag_proc = false;
previous_value = drag_start_value;
emit valueChanged();
} else {
double d = internal_value;
if (display_type == LABELSLIDER_FRAMENUMBER) {
QString s = QInputDialog::getText(
this,
"Set Value",
"New value:",
QLineEdit::Normal,
valueToString(internal_value)
);
if (s.isEmpty()) return;
d = timecode_to_frame(s, config.timecode_view, frame_rate); // string to frame number
} else {
bool ok;
d = QInputDialog::getDouble(
this,
"Set Value",
"New value:",
(display_type == LABELSLIDER_PERCENT) ? internal_value * 100 : internal_value,
(min_enabled) ? min_value : INT_MIN,
(max_enabled) ? max_value : INT_MAX,
decimal_places,
&ok
);
if (!ok) return;
if (display_type == LABELSLIDER_PERCENT) d *= 0.01;
}
if (d != internal_value) {
set_previous_value();
set_value(d, true);
}
}
}
}
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