117 lines
3.0 KiB
C++
117 lines
3.0 KiB
C++
#include "labelslider.h"
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#include "project/undo.h"
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#include <QMouseEvent>
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#include <QInputDialog>
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#include <QApplication>
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LabelSlider::LabelSlider(QWidget* parent) : QLabel(parent) {
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drag_start = false;
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min_enabled = false;
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max_enabled = false;
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setStyleSheet("QLabel{color:#ffc000;text-decoration:underline;}QLabel:disabled{color:#808080;}");
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setCursor(Qt::SizeHorCursor);
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internal_value = -1;
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set_default_value(0);
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set_value(0, false);
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set = false;
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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 (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(QString::number(internal_value));
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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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}
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double LabelSlider::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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}
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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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}
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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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}
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void LabelSlider::mousePressEvent(QMouseEvent *ev) {
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if (ev->modifiers() & Qt::AltModifier) {
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ValueChangeCommand* vcc = new ValueChangeCommand();
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vcc->source = this;
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vcc->old_val = internal_value;
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vcc->new_val = default_value;
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undo_stack.push(vcc);
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set_value(default_value, true);
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} else {
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qApp->setOverrideCursor(Qt::BlankCursor);
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drag_start_value = internal_value;
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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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}
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void LabelSlider::mouseMoveEvent(QMouseEvent*) {
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if (drag_start) {
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set_value(internal_value + (cursor().pos().x()-drag_start_x) + (drag_start_y-cursor().pos().y()), true);
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cursor().setPos(drag_start_x, drag_start_y);
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drag_proc = true;
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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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qApp->restoreOverrideCursor();
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drag_start = false;
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if (drag_proc) {
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// send undo event
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ValueChangeCommand* vcc = new ValueChangeCommand();
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vcc->source = this;
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vcc->old_val = drag_start_value;
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vcc->new_val = internal_value;
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undo_stack.push(vcc);
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drag_proc = false;
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} else {
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double d = QInputDialog::getDouble(this, "Set Value", "New value:", internal_value);
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if (d != internal_value) {
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ValueChangeCommand* vcc = new ValueChangeCommand();
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vcc->source = this;
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vcc->old_val = internal_value;
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set_value(d, true);
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vcc->new_val = internal_value;
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undo_stack.push(vcc);
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}
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}
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}
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}
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