Initial commit.

2018-02-27 18:06:05 +01:00
parent 85d9664df7
commit b2b1ba7abe
1393 changed files with 177311 additions and 1 deletions
--- a/src/widgets/tracksliderslider.cpp
+++ b/src/widgets/tracksliderslider.cpp
@@ -0,0 +1,132 @@
+/*
+ * Strawberry Music Player
+ * This file was part of Clementine.
+ * Copyright 2010, David Sansome <me@davidsansome.com>
+ *
+ * Strawberry is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Strawberry is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
+ * 
+ */
+
+#include "config.h"
+
+#include "tracksliderpopup.h"
+#include "tracksliderslider.h"
+#include "core/timeconstants.h"
+#include "core/utilities.h"
+
+#include <QMouseEvent>
+#include <QStyle>
+#include <QStyleOptionSlider>
+#include <QtDebug>
+#include <QWheelEvent>
+
+TrackSliderSlider::TrackSliderSlider(QWidget* parent)
+    : QSlider(parent),
+      popup_(new TrackSliderPopup(window())),
+    mouse_hover_seconds_(0)
+{
+  setMouseTracking(true);
+
+  connect(this, SIGNAL(valueChanged(int)), SLOT(UpdateDeltaTime()));
+}
+
+void TrackSliderSlider::mousePressEvent(QMouseEvent* e) {
+  // QSlider asks QStyle which mouse button should do what (absolute move or
+  // page step).  We force our own behaviour here because it makes more sense
+  // for a music player IMO.
+
+  Qt::MouseButton new_button = e->button();
+  if (e->button() == Qt::LeftButton) {
+    int abs_buttons = style()->styleHint(QStyle::SH_Slider_AbsoluteSetButtons);
+    if (abs_buttons & Qt::LeftButton)
+      new_button = Qt::LeftButton;
+    else if (abs_buttons & Qt::MidButton)
+      new_button = Qt::MidButton;
+    else if (abs_buttons & Qt::RightButton)
+      new_button = Qt::RightButton;
+  }
+
+  QMouseEvent new_event(e->type(), e->pos(), new_button, new_button, e->modifiers());
+  QSlider::mousePressEvent(&new_event);
+
+  if (new_event.isAccepted())
+    e->accept();
+}
+
+void TrackSliderSlider::mouseReleaseEvent(QMouseEvent* e) {
+  QSlider::mouseReleaseEvent(e);
+}
+
+void TrackSliderSlider::mouseMoveEvent(QMouseEvent* e) {
+  QSlider::mouseMoveEvent(e);
+
+  // Borrowed from QSliderPrivate::pixelPosToRangeValue
+  QStyleOptionSlider opt;
+  initStyleOption(&opt);
+  QRect gr = style()->subControlRect(QStyle::CC_Slider, &opt, QStyle::SC_SliderGroove, this);
+  QRect sr = style()->subControlRect(QStyle::CC_Slider, &opt, QStyle::SC_SliderHandle, this);
+
+  int slider_length = sr.width();
+  int slider_min = gr.x();
+  int slider_max = gr.right() - slider_length + 1;
+
+  mouse_hover_seconds_ = QStyle::sliderValueFromPosition(minimum() / kMsecPerSec, maximum() / kMsecPerSec, e->x() - slider_length / 2 - slider_min + 1, slider_max - slider_min);
+
+  popup_->SetText(Utilities::PrettyTime(mouse_hover_seconds_));
+  UpdateDeltaTime();
+  popup_->SetPopupPosition(mapTo(window(), QPoint(e->x(), rect().center().y())));
+}
+
+void TrackSliderSlider::wheelEvent(QWheelEvent *e) {
+  if (e->delta() < 0) {
+    emit SeekBackward();
+  }
+  else {
+    emit SeekForward();
+  }
+  e->accept();
+}
+
+void TrackSliderSlider::enterEvent(QEvent* e) {
+  QSlider::enterEvent(e);
+  if (isEnabled()) {
+    popup_->show();
+  }
+}
+
+void TrackSliderSlider::leaveEvent(QEvent* e) {
+  QSlider::leaveEvent(e);
+  popup_->hide();
+}
+
+void TrackSliderSlider::keyPressEvent(QKeyEvent* event) {
+  if (event->key() == Qt::Key_Left || event->key() == Qt::Key_Down) {
+    emit SeekBackward();
+    event->accept();
+  }
+  else if (event->key() == Qt::Key_Right || event->key() == Qt::Key_Up) {
+    emit SeekForward();
+    event->accept();
+  }
+  else {
+    QSlider::keyPressEvent(event);
+  }
+}
+
+void TrackSliderSlider::UpdateDeltaTime() {
+  if (popup_->isVisible()) {
+    int delta_seconds = mouse_hover_seconds_ - value();
+    popup_->SetSmallText(Utilities::PrettyTimeDelta(delta_seconds));
+  }
+}