added context menu to labelslider
This commit is contained in:
itsmattkc
+246
-217
@@ -29,313 +29,342 @@
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#include <QMouseEvent>
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#include <QInputDialog>
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#include <QApplication>
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#include <QMenu>
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LabelSlider::LabelSlider(QWidget* parent) : QLabel(parent) {
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// set a default frame rate - fallback, shouldn't ever really be used
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frame_rate = 30;
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// set a default frame rate - fallback, shouldn't ever really be used
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frame_rate = 30;
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decimal_places = 1;
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drag_start = false;
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drag_proc = false;
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min_enabled = false;
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max_enabled = false;
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set_color();
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set_default_cursor();
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internal_value = -1;
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set = false;
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display_type = LABELSLIDER_NORMAL;
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decimal_places = 1;
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drag_start = false;
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drag_proc = false;
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min_enabled = false;
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max_enabled = false;
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set_color();
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set_default_cursor();
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internal_value = -1;
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set = false;
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display_type = LABELSLIDER_NORMAL;
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set_default_value(0);
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set_default_value(0);
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setContextMenuPolicy(Qt::CustomContextMenu);
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connect(this, SIGNAL(customContextMenuRequested(const QPoint&)), this, SLOT(show_context_menu(const QPoint&)));
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}
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void LabelSlider::set_frame_rate(double d) {
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frame_rate = d;
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frame_rate = d;
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}
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void LabelSlider::set_display_type(int type) {
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display_type = type;
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setText(valueToString());
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display_type = type;
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setText(valueToString());
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}
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void LabelSlider::set_value(double v, bool userSet) {
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set = true;
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if (!qFuzzyCompare(v, internal_value)) {
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if (min_enabled && v < min_value) {
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internal_value = min_value;
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} else if (max_enabled && v > max_value) {
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internal_value = max_value;
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} else {
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internal_value = v;
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}
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set = true;
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if (!qFuzzyCompare(v, internal_value)) {
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if (min_enabled && v < min_value) {
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internal_value = min_value;
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} else if (max_enabled && v > max_value) {
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internal_value = max_value;
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} else {
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internal_value = v;
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}
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setText(valueToString());
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if (userSet) emit valueChanged();
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}
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setText(valueToString());
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if (userSet) emit valueChanged();
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}
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}
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bool LabelSlider::is_set() {
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return set;
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return set;
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}
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bool LabelSlider::is_dragging() {
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return drag_proc;
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return drag_proc;
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}
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QString LabelSlider::valueToString() {
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double v = internal_value;
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if (qIsNaN(v)) {
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return "---";
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} else {
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switch (display_type) {
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case LABELSLIDER_FRAMENUMBER:
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return frame_to_timecode(long(v), olive::CurrentConfig.timecode_view, frame_rate);
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case LABELSLIDER_PERCENT:
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return QString::number((v*100), 'f', decimal_places).append("%");
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case LABELSLIDER_DECIBEL:
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{
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QString db_str;
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double v = internal_value;
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if (qIsNaN(v)) {
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return "---";
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} else {
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switch (display_type) {
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case LABELSLIDER_FRAMENUMBER:
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return frame_to_timecode(long(v), olive::CurrentConfig.timecode_view, frame_rate);
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case LABELSLIDER_PERCENT:
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return QString::number((v*100), 'f', decimal_places).append("%");
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case LABELSLIDER_DECIBEL:
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{
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QString db_str;
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// -96 dB is considered -infinity
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if (amplitude_to_db(v) <= -96) {
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// hex sequence for -infinity
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db_str = "-\xE2\x88\x9E";
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} else {
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db_str = QString::number(amplitude_to_db(v), 'f', decimal_places);
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}
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// -96 dB is considered -infinity
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if (amplitude_to_db(v) <= -96) {
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// hex sequence for -infinity
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db_str = "-\xE2\x88\x9E";
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} else {
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db_str = QString::number(amplitude_to_db(v), 'f', decimal_places);
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}
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// add "dB" suffix
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db_str.append(" dB");
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// add "dB" suffix
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db_str.append(" dB");
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return db_str;
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}
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}
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return QString::number(v, 'f', decimal_places);
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}
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return db_str;
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}
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}
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return QString::number(v, 'f', decimal_places);
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}
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}
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double LabelSlider::getPreviousValue() {
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return previous_value;
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return previous_value;
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}
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void LabelSlider::set_previous_value() {
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previous_value = internal_value;
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previous_value = internal_value;
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}
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void LabelSlider::set_color(QString c) {
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if (c.isEmpty()) c = "#ffc000";
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setStyleSheet("QLabel{color:" + c + ";text-decoration:underline;}QLabel:disabled{color:#808080;}");
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if (c.isEmpty()) c = "#ffc000";
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setStyleSheet("QLabel{color:" + c + ";text-decoration:underline;}QLabel:disabled{color:#808080;}");
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}
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double LabelSlider::value() {
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return internal_value;
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return internal_value;
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}
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void LabelSlider::set_default_value(double v) {
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default_value = v;
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if (!set) {
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set_value(v, false);
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set = false;
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}
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default_value = v;
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if (!set) {
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set_value(v, false);
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set = false;
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}
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}
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void LabelSlider::set_minimum_value(double v) {
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min_value = v;
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min_enabled = true;
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min_value = v;
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min_enabled = true;
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}
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void LabelSlider::set_maximum_value(double v) {
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max_value = v;
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max_enabled = true;
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max_value = v;
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max_enabled = true;
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}
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void LabelSlider::mousePressEvent(QMouseEvent *ev) {
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// if primary button is clicked
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if (ev->button() == Qt::LeftButton && !drag_start) {
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// if primary button is clicked
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if (ev->button() == Qt::LeftButton && !drag_start) {
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// store initial value to be compared while dragging
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drag_start_value = internal_value;
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// store initial value to be compared while dragging
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drag_start_value = internal_value;
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// alt + click sets labelslider to default value
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if (ev->modifiers() & Qt::AltModifier) {
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// alt + click sets labelslider to default value
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if (ev->modifiers() & Qt::AltModifier) {
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// if the value is not already default, and there is a default to set
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if (!qFuzzyCompare(internal_value, default_value)
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&& !qIsNaN(default_value)) {
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// cache current value
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set_previous_value();
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// set back to default
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set_value(default_value, true);
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}
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} else {
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// if value isn't valid, we set to a "default" of 0
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if (qIsNaN(internal_value)) internal_value = 0;
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// hide the cursor and store information about it for dragging
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set_active_cursor();
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drag_start = true;
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drag_start_x = cursor().pos().x();
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drag_start_y = cursor().pos().y();
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}
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emit clicked();
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// reset to default
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reset_to_default_value();
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} else {
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// handler if the user clicks with a non-primary button
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// prevents mouse from getting stuck in "dragging" mode
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mouseReleaseEvent(ev);
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// if value isn't valid, we set to a "default" of 0
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if (qIsNaN(internal_value)) internal_value = 0;
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// hide the cursor and store information about it for dragging
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set_active_cursor();
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drag_start = true;
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drag_start_x = cursor().pos().x();
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drag_start_y = cursor().pos().y();
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}
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emit clicked();
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} else {
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// handler if the user clicks with a non-primary button
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// prevents mouse from getting stuck in "dragging" mode
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mouseReleaseEvent(ev);
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}
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}
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void LabelSlider::mouseMoveEvent(QMouseEvent* event) {
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if (drag_start) {
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// if we're dragging
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if (drag_start) {
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// if we're dragging
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// we don't actually start fully dragging until the cursor has moved
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// while the mouse is down, this helps prevent accidental drags
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drag_proc = true;
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// we don't actually start fully dragging until the cursor has moved
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// while the mouse is down, this helps prevent accidental drags
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drag_proc = true;
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// get amount cursor moved by
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double diff = (cursor().pos().x()-drag_start_x) + (drag_start_y-cursor().pos().y());
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// get amount cursor moved by
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double diff = (cursor().pos().x()-drag_start_x) + (drag_start_y-cursor().pos().y());
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// ctrl + drag drags in smaller increments
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if (event->modifiers() & Qt::ControlModifier) diff *= 0.01;
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// ctrl + drag drags in smaller increments
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if (event->modifiers() & Qt::ControlModifier) diff *= 0.01;
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if (display_type == LABELSLIDER_PERCENT) {
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// we'll also need to drag in smaller increments for a percent value
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if (display_type == LABELSLIDER_PERCENT) {
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// we'll also need to drag in smaller increments for a percent value
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diff *= 0.01;
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}
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diff *= 0.01;
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}
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// determine what the new value will be
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double new_value;
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// determine what the new value will be
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double new_value;
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if (display_type == LABELSLIDER_DECIBEL) {
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// we move in terms of dB for decibel display
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if (display_type == LABELSLIDER_DECIBEL) {
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// we move in terms of dB for decibel display
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new_value = db_to_amplitude(amplitude_to_db(internal_value) + diff);
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new_value = db_to_amplitude(amplitude_to_db(internal_value) + diff);
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} else {
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// for most display types, just add the mouse difference
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} else {
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// for most display types, just add the mouse difference
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new_value = internal_value + diff;
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}
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new_value = internal_value + diff;
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}
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// set internal value
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set_value(new_value, true);
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// set internal value
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set_value(new_value, true);
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// keep the cursor in the same location while dragging
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cursor().setPos(drag_start_x, drag_start_y);
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}
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// keep the cursor in the same location while dragging
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cursor().setPos(drag_start_x, drag_start_y);
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}
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}
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void LabelSlider::mouseReleaseEvent(QMouseEvent*) {
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if (drag_start) {
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if (drag_start) {
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// unhide cursor
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set_default_cursor();
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// unhide cursor
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set_default_cursor();
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drag_start = false;
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drag_start = false;
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if (drag_proc) {
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// if we just finished fully dragging
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if (drag_proc) {
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// if we just finished fully dragging
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drag_proc = false;
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drag_proc = false;
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previous_value = drag_start_value;
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previous_value = drag_start_value;
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emit valueChanged();
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emit valueChanged();
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} else {
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} else {
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// if the user didn't actually drag, and just clicked in one place,
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// we instead present a dialog prompt for the user to enter a
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// specific value
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prompt_for_value();
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double d = internal_value;
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if (display_type == LABELSLIDER_FRAMENUMBER) {
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// ask the user to enter a timecode
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QString s = QInputDialog::getText(
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this,
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tr("Set Value"),
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tr("New value:"),
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QLineEdit::Normal,
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valueToString()
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);
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if (s.isEmpty()) return;
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// parse string timecode to a frame number
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d = timecode_to_frame(s, olive::CurrentConfig.timecode_view, frame_rate);
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} else {
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// ask the user to enter a normal number value
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bool ok;
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// value to show
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double shown_value = internal_value;
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if (display_type == LABELSLIDER_PERCENT) {
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shown_value *= 100;
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} else if (display_type == LABELSLIDER_DECIBEL) {
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shown_value = amplitude_to_db(shown_value);
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}
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// set correct minimum value
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double shown_minimum_value;
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if (min_enabled) {
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// if this field has a minimum value set, use it
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shown_minimum_value = min_value;
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} else if (display_type == LABELSLIDER_DECIBEL) {
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// minimum decibel amount is -96db
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shown_minimum_value = -96;
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} else {
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// lowest possible minimum integer
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shown_minimum_value = INT_MIN;
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}
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// percentages are stored 0.0 - 1.0 but displayed as 0% - 100%
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d = QInputDialog::getDouble(
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this,
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tr("Set Value"),
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tr("New value:"),
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shown_value,
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shown_minimum_value,
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(max_enabled) ? max_value : INT_MAX,
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decimal_places,
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&ok
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);
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if (!ok) return;
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// convert shown value back to internal value
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if (display_type == LABELSLIDER_PERCENT) {
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d *= 0.01;
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} else if (display_type == LABELSLIDER_DECIBEL) {
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d = db_to_amplitude(d);
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}
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}
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// if the value actually changed, trigger a change event
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if (!qFuzzyCompare(d, internal_value)) {
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set_previous_value();
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set_value(d, true);
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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 LabelSlider::set_default_cursor() {
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setCursor(Qt::SizeHorCursor);
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setCursor(Qt::SizeHorCursor);
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}
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void LabelSlider::set_active_cursor() {
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setCursor(Qt::BlankCursor);
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setCursor(Qt::BlankCursor);
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}
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void LabelSlider::show_context_menu(const QPoint &pos)
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{
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QMenu menu(this);
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menu.addAction(tr("&Edit"), this, SLOT(prompt_for_value()));
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menu.addSeparator();
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menu.addAction(tr("&Reset to Default"), this, SLOT(reset_to_default_value()));
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menu.exec(mapToGlobal(pos));
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}
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void LabelSlider::reset_to_default_value()
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{
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// if the value is not already default, and there is a default to set
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if (!qFuzzyCompare(internal_value, default_value)
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&& !qIsNaN(default_value)) {
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// cache current value
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set_previous_value();
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// set back to default
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set_value(default_value, true);
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}
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}
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void LabelSlider::prompt_for_value()
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{
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// if the user didn't actually drag, and just clicked in one place,
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// we instead present a dialog prompt for the user to enter a
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// specific value
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double d = internal_value;
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if (display_type == LABELSLIDER_FRAMENUMBER) {
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// ask the user to enter a timecode
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QString s = QInputDialog::getText(
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this,
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tr("Set Value"),
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tr("New value:"),
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QLineEdit::Normal,
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valueToString()
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);
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if (s.isEmpty()) return;
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// parse string timecode to a frame number
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d = timecode_to_frame(s, olive::CurrentConfig.timecode_view, frame_rate);
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} else {
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// ask the user to enter a normal number value
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bool ok;
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// value to show
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double shown_value = internal_value;
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if (display_type == LABELSLIDER_PERCENT) {
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shown_value *= 100;
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} else if (display_type == LABELSLIDER_DECIBEL) {
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shown_value = amplitude_to_db(shown_value);
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}
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// set correct minimum value
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double shown_minimum_value;
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if (min_enabled) {
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// if this field has a minimum value set, use it
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shown_minimum_value = min_value;
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} else if (display_type == LABELSLIDER_DECIBEL) {
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||||
// 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:"),
|
||||
shown_value,
|
||||
shown_minimum_value,
|
||||
(max_enabled) ? max_value : INT_MAX,
|
||||
decimal_places,
|
||||
&ok
|
||||
);
|
||||
if (!ok) return;
|
||||
|
||||
// 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 (!qFuzzyCompare(d, internal_value)) {
|
||||
set_previous_value();
|
||||
set_value(d, true);
|
||||
}
|
||||
}
|
||||
|
||||
+83
-60
@@ -25,10 +25,10 @@
|
||||
#include <QUndoCommand>
|
||||
|
||||
enum LabelSliderDisplayType {
|
||||
LABELSLIDER_NORMAL,
|
||||
LABELSLIDER_FRAMENUMBER,
|
||||
LABELSLIDER_PERCENT,
|
||||
LABELSLIDER_DECIBEL
|
||||
LABELSLIDER_NORMAL,
|
||||
LABELSLIDER_FRAMENUMBER,
|
||||
LABELSLIDER_PERCENT,
|
||||
LABELSLIDER_DECIBEL
|
||||
};
|
||||
|
||||
/**
|
||||
@@ -39,11 +39,11 @@ enum LabelSliderDisplayType {
|
||||
*/
|
||||
class LabelSlider : public QLabel
|
||||
{
|
||||
Q_OBJECT
|
||||
Q_OBJECT
|
||||
public:
|
||||
LabelSlider(QWidget* parent = nullptr);
|
||||
LabelSlider(QWidget* parent = nullptr);
|
||||
|
||||
/**
|
||||
/**
|
||||
* @brief Set the display frame rate
|
||||
*
|
||||
* If the `display_type` is set to LABELSLIDER_FRAMENUMBER, this function sets how many frames per second the
|
||||
@@ -51,9 +51,9 @@ public:
|
||||
*
|
||||
* @param d
|
||||
*/
|
||||
void set_frame_rate(double d);
|
||||
void set_frame_rate(double d);
|
||||
|
||||
/**
|
||||
/**
|
||||
* @brief Sets the way to display the value
|
||||
*
|
||||
* * `LABELSLIDER_NORMAL` - Shows the value as a normal number
|
||||
@@ -67,9 +67,9 @@ public:
|
||||
*
|
||||
* The display type to set to. Should be a member of `enum LabelSliderDisplayType`.
|
||||
*/
|
||||
void set_display_type(int type);
|
||||
void set_display_type(int type);
|
||||
|
||||
/**
|
||||
/**
|
||||
* @brief Set the value
|
||||
* @param v
|
||||
*
|
||||
@@ -81,9 +81,9 @@ public:
|
||||
* only difference is **TRUE** will emit a signal (valueChanged()) indicating that the value has changed, and
|
||||
* **FALSE** will not.
|
||||
*/
|
||||
void set_value(double v, bool userSet);
|
||||
void set_value(double v, bool userSet);
|
||||
|
||||
/**
|
||||
/**
|
||||
* @brief Set the default value
|
||||
*
|
||||
* If a default value is set, alt+clicking the LabelSlider will return to the default value.
|
||||
@@ -92,9 +92,9 @@ public:
|
||||
*
|
||||
* Value to set as default
|
||||
*/
|
||||
void set_default_value(double v);
|
||||
void set_default_value(double v);
|
||||
|
||||
/**
|
||||
/**
|
||||
* @brief Set the minimum value
|
||||
*
|
||||
* If a minimum value is set, the value will never go below it. If the user manually sets a value lower than
|
||||
@@ -104,9 +104,9 @@ public:
|
||||
*
|
||||
* Value to set as minimum
|
||||
*/
|
||||
void set_minimum_value(double v);
|
||||
void set_minimum_value(double v);
|
||||
|
||||
/**
|
||||
/**
|
||||
* @brief Set the maximum value
|
||||
*
|
||||
* If a maximum value is set, the value will never go above it. If the user manually sets a value higher than
|
||||
@@ -116,16 +116,16 @@ public:
|
||||
*
|
||||
* Value to set as maximum
|
||||
*/
|
||||
void set_maximum_value(double v);
|
||||
void set_maximum_value(double v);
|
||||
|
||||
/**
|
||||
/**
|
||||
* @brief Returns the internal value as a double
|
||||
* @return The internal value. This will not respect the `display_type`, i.e. 100% will return as 1.0, 12dB will
|
||||
* return as 400%, and a timecode will return as a frame number.
|
||||
*/
|
||||
double value();
|
||||
double value();
|
||||
|
||||
/**
|
||||
/**
|
||||
* @brief Returns whether a value has been set or not
|
||||
*
|
||||
* If a value has been entered by any means (i.e. if set_value() was called), this will be **TRUE**. If set_value()
|
||||
@@ -136,21 +136,21 @@ public:
|
||||
*
|
||||
* @return **TRUE** if a value has been set, **FALSE** if not.
|
||||
*/
|
||||
bool is_set();
|
||||
bool is_set();
|
||||
|
||||
/**
|
||||
/**
|
||||
* @brief Returns whether the user is currently dragging
|
||||
* @return **TRUE** if the user is dragging, **FALSE** if not.
|
||||
*/
|
||||
bool is_dragging();
|
||||
bool is_dragging();
|
||||
|
||||
/**
|
||||
/**
|
||||
* @brief Convert the internal value to a displayed string according to `display_type`
|
||||
* @return The internal value as a string
|
||||
*/
|
||||
QString valueToString();
|
||||
QString valueToString();
|
||||
|
||||
/**
|
||||
/**
|
||||
* @brief Returns whatever value was set before the last set_value()
|
||||
*
|
||||
* For various reasons (largely undo capabilities) it is helpful to retrieve whatever the value was before the
|
||||
@@ -159,79 +159,102 @@ public:
|
||||
*
|
||||
* @return The previous value
|
||||
*/
|
||||
double getPreviousValue();
|
||||
double getPreviousValue();
|
||||
|
||||
/**
|
||||
/**
|
||||
* @brief Updates previous value
|
||||
*
|
||||
* Called internally to store the current value as the previous value in anticipation of an upcoming value change.
|
||||
* Can also be called externally (mainly for dragged EffectGizmos) in anticipation of an external change.
|
||||
*/
|
||||
void set_previous_value();
|
||||
void set_previous_value();
|
||||
|
||||
/**
|
||||
/**
|
||||
* @brief Set the display color
|
||||
* @param c
|
||||
*
|
||||
* Color to set to
|
||||
*/
|
||||
void set_color(QString c = nullptr);
|
||||
void set_color(QString c = nullptr);
|
||||
|
||||
/**
|
||||
/**
|
||||
* @brief Set how many decimal places to show for a floating-point number
|
||||
*
|
||||
* Defaults to 1
|
||||
*/
|
||||
int decimal_places;
|
||||
int decimal_places;
|
||||
protected:
|
||||
void mousePressEvent(QMouseEvent *ev);
|
||||
void mouseMoveEvent(QMouseEvent *ev);
|
||||
void mouseReleaseEvent(QMouseEvent *ev);
|
||||
void mousePressEvent(QMouseEvent *ev);
|
||||
void mouseMoveEvent(QMouseEvent *ev);
|
||||
void mouseReleaseEvent(QMouseEvent *ev);
|
||||
private:
|
||||
double default_value;
|
||||
double internal_value;
|
||||
double drag_start_value;
|
||||
double previous_value;
|
||||
double default_value;
|
||||
double internal_value;
|
||||
double drag_start_value;
|
||||
double previous_value;
|
||||
|
||||
bool min_enabled;
|
||||
double min_value;
|
||||
bool max_enabled;
|
||||
double max_value;
|
||||
bool min_enabled;
|
||||
double min_value;
|
||||
bool max_enabled;
|
||||
double max_value;
|
||||
|
||||
bool drag_start;
|
||||
bool drag_proc;
|
||||
int drag_start_x;
|
||||
int drag_start_y;
|
||||
bool drag_start;
|
||||
bool drag_proc;
|
||||
int drag_start_x;
|
||||
int drag_start_y;
|
||||
|
||||
bool set;
|
||||
bool set;
|
||||
|
||||
int display_type;
|
||||
int display_type;
|
||||
|
||||
double frame_rate;
|
||||
double frame_rate;
|
||||
|
||||
/**
|
||||
/**
|
||||
* @brief Internal function to set the standard cursor (usually SizeHorCursor)
|
||||
*/
|
||||
void set_default_cursor();
|
||||
void set_default_cursor();
|
||||
|
||||
/**
|
||||
/**
|
||||
* @brief Internal function to set the cursor while dragging (usually NoCursor aka invisible)
|
||||
*/
|
||||
void set_active_cursor();
|
||||
void set_active_cursor();
|
||||
private slots:
|
||||
/**
|
||||
* @brief Context menu slot to be connected to QWidget::customContextMenuRequested(const QPoint&)
|
||||
*
|
||||
* @param pos
|
||||
*
|
||||
* Current cursor position
|
||||
*/
|
||||
void show_context_menu(const QPoint& pos);
|
||||
|
||||
/**
|
||||
* @brief Slot to reset current value to the default value
|
||||
*/
|
||||
void reset_to_default_value();
|
||||
|
||||
/**
|
||||
* @brief Show prompt asking for value
|
||||
*
|
||||
* Triggered when the user clicks on the LabelSlider without dragging or triggers right click > Edit.
|
||||
* Will show an input dialog asking for a new value to be entered manually. Asks for units in the selected
|
||||
* display type and converts them back to the internal value type.
|
||||
*/
|
||||
void prompt_for_value();
|
||||
signals:
|
||||
/**
|
||||
/**
|
||||
* @brief valueChanged signal
|
||||
*
|
||||
* Emitted if the value changed at it was instigated by the user.
|
||||
*/
|
||||
void valueChanged();
|
||||
void valueChanged();
|
||||
|
||||
/**
|
||||
/**
|
||||
* @brief clicked signal
|
||||
*
|
||||
* Emitted if the user clicks on the LabelSlider in any way
|
||||
*/
|
||||
void clicked();
|
||||
void clicked();
|
||||
};
|
||||
|
||||
#endif // LABELSLIDER_H
|
||||
|
||||
Reference in New Issue
Block a user