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Clementine-audio-player-Mac.../src/smartplaylists/searchtermwidget.cpp

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/* This file is part of Clementine.
Copyright 2010, David Sansome <me@davidsansome.com>
Clementine 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.
Clementine 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 Clementine. If not, see <http://www.gnu.org/licenses/>.
*/
#include "searchterm.h"
#include "searchtermwidget.h"
#include "ui_searchtermwidget.h"
#include "core/utilities.h"
#include "playlist/playlist.h"
#include "playlist/playlistdelegates.h"
#include "ui/iconloader.h"
#include <QFile>
#include <QMessageBox>
#include <QPainter>
#include <QPropertyAnimation>
#include <QTimer>
#include <QtDebug>
// Exported by QtGui
void qt_blurImage(QPainter *p, QImage &blurImage, qreal radius, bool quality, bool alphaOnly, int transposed = 0);
namespace smart_playlists {
class SearchTermWidget::Overlay : public QWidget {
public:
Overlay(SearchTermWidget* parent);
void Grab();
void SetOpacity(float opacity);
float opacity() const { return opacity_; }
static const int kSpacing;
static const int kIconSize;
protected:
void paintEvent(QPaintEvent*);
void mouseReleaseEvent(QMouseEvent*);
private:
SearchTermWidget* parent_;
float opacity_;
QString text_;
QPixmap pixmap_;
QPixmap icon_;
};
const int SearchTermWidget::Overlay::kSpacing = 6;
const int SearchTermWidget::Overlay::kIconSize = 22;
SearchTermWidget::SearchTermWidget(LibraryBackend* library, QWidget* parent)
: QWidget(parent),
ui_(new Ui_SmartPlaylistSearchTermWidget),
library_(library),
overlay_(NULL),
animation_(new QPropertyAnimation(this, "overlay_opacity", this)),
active_(true),
initialized_(false),
current_field_type_(SearchTerm::Type_Invalid)
{
ui_->setupUi(this);
connect(ui_->field, SIGNAL(currentIndexChanged(int)), SLOT(FieldChanged(int)));
connect(ui_->op, SIGNAL(currentIndexChanged(int)), SLOT(OpChanged(int)));
connect(ui_->remove, SIGNAL(clicked()), SIGNAL(RemoveClicked()));
connect(ui_->value_date, SIGNAL(dateChanged(QDate)), SIGNAL(Changed()));
connect(ui_->value_number, SIGNAL(valueChanged(int)), SIGNAL(Changed()));
connect(ui_->value_rating, SIGNAL(RatingChanged(float)), SIGNAL(Changed()));
connect(ui_->value_text, SIGNAL(textChanged(QString)), SIGNAL(Changed()));
connect(ui_->value_time, SIGNAL(timeChanged(QTime)), SIGNAL(Changed()));
connect(ui_->value_date_numeric, SIGNAL(valueChanged(int)), SIGNAL(Changed()));
connect(ui_->value_date_numeric1, SIGNAL(valueChanged(int)), SLOT(RelativeValueChanged()));
connect(ui_->value_date_numeric2, SIGNAL(valueChanged(int)), SLOT(RelativeValueChanged()));
connect(ui_->date_type, SIGNAL(currentIndexChanged(int)), SIGNAL(Changed()));
connect(ui_->date_type_relative, SIGNAL(currentIndexChanged(int)), SIGNAL(Changed()));
ui_->value_date->setDate(QDate::currentDate());
// Populate the combo boxes
for (int i=0; i<SearchTerm::FieldCount; ++i) {
ui_->field->addItem(SearchTerm::FieldName(SearchTerm::Field(i)));
ui_->field->setItemData(i, i);
}
ui_->field->model()->sort(0);
// Populate the date type combo box
for (int i=0; i<5; ++i) {
ui_->date_type->addItem(SearchTerm::DateName(SearchTerm::DateType(i), false));
ui_->date_type->setItemData(i, i);
ui_->date_type_relative->addItem(SearchTerm::DateName(SearchTerm::DateType(i), false));
ui_->date_type_relative->setItemData(i, i);
}
// Icons on the buttons
ui_->remove->setIcon(IconLoader::Load("list-remove"));
// Set stylesheet
QFile stylesheet_file(":/smartplaylistsearchterm.css");
stylesheet_file.open(QIODevice::ReadOnly);
QString stylesheet = QString::fromAscii(stylesheet_file.readAll());
const QColor base(222, 97, 97, 128);
stylesheet.replace("%light2", Utilities::ColorToRgba(base.lighter(140)));
stylesheet.replace("%light", Utilities::ColorToRgba(base.lighter(120)));
stylesheet.replace("%dark", Utilities::ColorToRgba(base.darker(120)));
stylesheet.replace("%base", Utilities::ColorToRgba(base));
setStyleSheet(stylesheet);
}
SearchTermWidget::~SearchTermWidget() {
delete ui_;
}
void SearchTermWidget::FieldChanged(int index) {
SearchTerm::Field field = SearchTerm::Field(
ui_->field->itemData(index).toInt());
SearchTerm::Type type = SearchTerm::TypeOf(field);
// Populate the operator combo box
if (type != current_field_type_) {
ui_->op->clear();
foreach (SearchTerm::Operator op, SearchTerm::OperatorsForType(type)) {
const int i = ui_->op->count();
ui_->op->addItem(SearchTerm::OperatorText(type, op));
ui_->op->setItemData(i, op);
}
current_field_type_ = type;
}
// Show the correct value editor
QWidget* page = NULL;
switch (type) {
case SearchTerm::Type_Time: page = ui_->page_time; break;
case SearchTerm::Type_Number: page = ui_->page_number; break;
case SearchTerm::Type_Date: page = ui_->page_date; break;
case SearchTerm::Type_Rating: page = ui_->page_rating; break;
case SearchTerm::Type_Text: page = ui_->page_text; break;
case SearchTerm::Type_Invalid: page = NULL; break;
}
ui_->value_stack->setCurrentWidget(page);
// Maybe set a tag completer
switch (field) {
case SearchTerm::Field_Artist:
new TagCompleter(library_, Playlist::Column_Artist, ui_->value_text);
break;
case SearchTerm::Field_Album:
new TagCompleter(library_, Playlist::Column_Album, ui_->value_text);
break;
default:
ui_->value_text->setCompleter(NULL);
}
emit Changed();
}
void SearchTermWidget::OpChanged(int index) {
// We need to change the page only in the following case
if ((ui_->value_stack->currentWidget() == ui_->page_date) || (ui_->value_stack->currentWidget() == ui_->page_date_numeric) ||
(ui_->value_stack->currentWidget() == ui_->page_date_relative)) {
QWidget* page = NULL;
if (index == 4 || index == 5) {
page = ui_->page_date_numeric;
} else if (index == 6) {
page = ui_->page_date_relative;
} else {
page = ui_->page_date;
}
ui_->value_stack->setCurrentWidget(page);
}
emit Changed();
}
void SearchTermWidget::SetActive(bool active) {
active_ = active;
delete overlay_;
overlay_ = NULL;
if (!active) {
overlay_ = new Overlay(this);
}
}
void SearchTermWidget::enterEvent(QEvent*) {
if (!overlay_ || !isEnabled())
return;
animation_->stop();
animation_->setEndValue(1.0);
animation_->setDuration(80);
animation_->start();
}
void SearchTermWidget::leaveEvent(QEvent*) {
if (!overlay_)
return;
animation_->stop();
animation_->setEndValue(0.0);
animation_->setDuration(160);
animation_->start();
}
void SearchTermWidget::resizeEvent(QResizeEvent* e) {
QWidget::resizeEvent(e);
if (overlay_ && overlay_->isVisible()) {
QTimer::singleShot(0, this, SLOT(Grab()));
}
}
void SearchTermWidget::showEvent(QShowEvent* e) {
QWidget::showEvent(e);
if (overlay_) {
QTimer::singleShot(0, this, SLOT(Grab()));
}
}
void SearchTermWidget::Grab() {
overlay_->Grab();
}
void SearchTermWidget::set_overlay_opacity(float opacity) {
if (overlay_)
overlay_->SetOpacity(opacity);
}
float SearchTermWidget::overlay_opacity() const {
return overlay_ ? overlay_->opacity() : 0.0;
}
void SearchTermWidget::SetTerm(const SearchTerm& term) {
ui_->field->setCurrentIndex(ui_->field->findData(term.field_));
ui_->op->setCurrentIndex(ui_->op->findData(term.operator_));
// The value depends on the data type
switch (SearchTerm::TypeOf(term.field_)) {
case SearchTerm::Type_Text:
ui_->value_text->setText(term.value_.toString());
break;
case SearchTerm::Type_Number:
ui_->value_number->setValue(term.value_.toInt());
break;
case SearchTerm::Type_Date:
if (ui_->value_stack->currentWidget() == ui_->page_date_numeric) {
ui_->value_date_numeric->setValue(term.value_.toInt());
ui_->date_type->setCurrentIndex(term.date_);
}
else if (ui_->value_stack->currentWidget() == ui_->page_date_relative) {
ui_->value_date_numeric1->setValue(term.value_.toInt());
ui_->value_date_numeric2->setValue(term.second_value_.toInt());
ui_->date_type_relative->setCurrentIndex(term.date_);
}
else if (ui_->value_stack->currentWidget() == ui_->page_date) {
ui_->value_date->setDateTime(QDateTime::fromTime_t(term.value_.toInt()));
}
break;
case SearchTerm::Type_Time:
ui_->value_time->setTime(QTime(0,0).addSecs(term.value_.toInt()));
break;
case SearchTerm::Type_Rating:
ui_->value_rating->set_rating(term.value_.toFloat());
break;
case SearchTerm::Type_Invalid:
break;
}
}
SearchTerm SearchTermWidget::Term() const {
const int field = ui_->field->itemData(ui_->field->currentIndex()).toInt();
const int op = ui_->op->itemData(ui_->op->currentIndex()).toInt();
SearchTerm ret;
ret.field_ = SearchTerm::Field(field);
ret.operator_ = SearchTerm::Operator(op);
// The value depends on the data type
const QWidget* value_page = ui_->value_stack->currentWidget();
if (value_page == ui_->page_text) {
ret.value_ = ui_->value_text->text();
} else if (value_page == ui_->page_number) {
ret.value_ = ui_->value_number->value();
} else if (value_page == ui_->page_date) {
ret.value_ = ui_->value_date->dateTime().toTime_t();
} else if (value_page == ui_->page_time) {
ret.value_ = QTime(0,0).secsTo(ui_->value_time->time());
} else if (value_page == ui_->page_rating) {
ret.value_ = ui_->value_rating->rating();
} else if (value_page == ui_->page_date_numeric) {
ret.date_ = SearchTerm::DateType(ui_->date_type->currentIndex());
ret.value_ = ui_->value_date_numeric->value();
} else if (value_page == ui_->page_date_relative) {
ret.date_ = SearchTerm::DateType(ui_->date_type_relative->currentIndex());
ret.value_ = ui_->value_date_numeric1->value();
ret.second_value_ = ui_->value_date_numeric2->value();
}
return ret;
}
void SearchTermWidget::RelativeValueChanged() {
// Don't check for validity when creating the widget
if (!initialized_) {
initialized_ = true;
return;
}
// Explain the user why he can't proceed
if (ui_->value_date_numeric1->value() >= ui_->value_date_numeric2->value()) {
QMessageBox::warning(this, tr("Clementine"),
tr("The second value must be greater than the first one!"));
}
// Emit the signal in any case, so the Next button will be disabled
emit Changed();
}
SearchTermWidget::Overlay::Overlay(SearchTermWidget* parent)
: QWidget(parent),
parent_(parent),
opacity_(0.0),
text_(tr("Add search term")),
icon_(IconLoader::Load("list-add").pixmap(kIconSize))
{
raise();
}
void SearchTermWidget::Overlay::SetOpacity(float opacity) {
opacity_ = opacity;
update();
}
void SearchTermWidget::Overlay::Grab() {
hide();
// Take a "screenshot" of the window
QPixmap pixmap = QPixmap::grabWidget(parent_);
QImage image = pixmap.toImage();
// Blur it
QImage blurred(image.size(), QImage::Format_ARGB32_Premultiplied);
blurred.fill(Qt::transparent);
QPainter blur_painter(&blurred);
qt_blurImage(&blur_painter, image, 10.0, true, false);
blur_painter.end();
pixmap_ = QPixmap::fromImage(blurred);
resize(parent_->size());
show();
update();
}
void SearchTermWidget::Overlay::paintEvent(QPaintEvent*) {
QPainter p(this);
// Background
p.fillRect(rect(), palette().window());
// Blurred parent widget
p.setOpacity(0.25 + opacity_ * 0.25);
p.drawPixmap(0, 0, pixmap_);
// Draw a frame
p.setOpacity(1.0);
p.setPen(palette().color(QPalette::Mid));
p.setRenderHint(QPainter::Antialiasing);
p.drawRoundedRect(rect(), 5, 5);
// Geometry
const QSize contents_size(kIconSize + kSpacing + fontMetrics().width(text_),
qMax(kIconSize, fontMetrics().height()));
const QRect contents(QPoint((width() - contents_size.width()) / 2,
(height() - contents_size.height()) / 2),
contents_size);
const QRect icon(contents.topLeft(), QSize(kIconSize, kIconSize));
const QRect text(icon.right() + kSpacing, icon.top(),
contents.width() - kSpacing - kIconSize,
contents.height());
// Icon and text
p.setPen(palette().color(QPalette::Text));
p.drawPixmap(icon, icon_);
p.drawText(text, Qt::TextDontClip | Qt::AlignVCenter, text_);
}
void SearchTermWidget::Overlay::mouseReleaseEvent(QMouseEvent*) {
emit parent_->Clicked();
}
} // namespace
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