/***************************************************************************
* Copyright (C) 2009-2015 by Ilya Kotov *
* forkotov02@hotmail.ru *
* *
* This program 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 2 of the License, or *
* (at your option) any later version. *
* *
* This program 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 this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#include <QPainter>
#include <QFont>
#include <QFontMetrics>
#include <QSettings>
#include <QApplication>
#include <QMouseEvent>
#include <QMenu>
#include <QLineEdit>
#include <QInputDialog>
#include <QIcon>
#include <qmmp/qmmp.h>
#include <qmmpui/playlistmanager.h>
#include "actionmanager.h"
#include "skin.h"
#include "playlistselector.h"
PlayListSelector::PlayListSelector(PlayListManager *manager, QWidget *parent) : QWidget(parent)
{
m_scrollable = false;
m_moving = false;
m_offset = 0;
m_offset_max = 0;
m_metrics = 0;
m_pressed_button = BUTTON_UNKNOWN;
m_skin = Skin::instance();
m_pl_manager = manager;
connect(m_pl_manager, SIGNAL(playListsChanged()), SLOT(updateTabs()));
connect(m_skin, SIGNAL(skinChanged()), this, SLOT(updateSkin()));
loadColors();
readSettings();
m_menu = new QMenu(this);
m_menu->addAction(ACTION(ActionManager::PL_LOAD));
m_menu->addAction(ACTION(ActionManager::PL_SAVE));
m_menu->addSeparator();
m_menu->addAction(ACTION(ActionManager::PL_RENAME));
m_menu->addAction(ACTION(ActionManager::PL_CLOSE));
}
PlayListSelector::~PlayListSelector()
{
if (m_metrics)
delete m_metrics;
m_metrics = 0;
}
void PlayListSelector::readSettings()
{
QSettings settings(Qmmp::configFile(), QSettings::IniFormat);
m_font.fromString(settings.value("Skinned/pl_font", QApplication::font().toString()).toString());
if (m_metrics)
{
delete m_metrics;
m_metrics = 0;
}
m_metrics = new QFontMetrics(m_font);
m_pl_separator = settings.value("Skinned/pl_separator", "::").toString();
m_show_new_pl_button = settings.value("Skinned/pl_show_create_button", false).toBool();
m_pl_button = "[+]";
m_pl_separator.append(" ");
m_pl_separator.prepend(" ");
resize(width(), m_metrics->height () +1);
drawButtons();
updateTabs();
}
void PlayListSelector::updateTabs()
{
m_rects.clear();
m_extra_rects.clear();
QRect rect;
foreach(QString text, m_pl_manager->playListNames())
{
if(m_rects.isEmpty())
rect.setX(9);
else
rect.setX(m_rects.last().x() + m_rects.last().width() + m_metrics->width(m_pl_separator));
rect.setY(0);
rect.setWidth(m_metrics->width(text));
rect.setHeight(m_metrics->ascent ());
m_rects.append(rect);
}
if(m_show_new_pl_button)
{
rect.setX(m_rects.last().x() + m_rects.last().width() + m_metrics->width(" "));
rect.setY(0);
rect.setWidth(m_metrics->width(m_pl_button));
rect.setHeight(m_metrics->ascent ());
m_extra_rects.append(rect);
}
updateScrollers();
update();
}
void PlayListSelector::updateSkin()
{
loadColors();
drawButtons();
updateTabs();
}
void PlayListSelector::paintEvent(QPaintEvent *)
{
QPainter painter(this);
painter.setFont(m_font);
painter.setBrush(QBrush(m_normal_bg));
painter.drawRect(-1,-1,width()+1,height()+1);
QStringList names = m_pl_manager->playListNames();
int current = m_pl_manager->indexOf(m_pl_manager->currentPlayList());
int selected = m_pl_manager->indexOf(m_pl_manager->selectedPlayList());
if(m_moving)
{
painter.setBrush(QBrush(m_normal_bg));
painter.setPen(m_current);
painter.drawRect(m_rects.at(selected).x() - 2 - m_offset, 0,
m_rects.at(selected).width() + 3, height()-1);
}
else
{
painter.setBrush(QBrush(m_selected_bg));
painter.setPen(m_selected_bg);
painter.drawRect(m_rects.at(selected).x() - 2 - m_offset, 0,
m_rects.at(selected).width() + 3, height()-1);
}
for (int i = 0; i < m_rects.size(); ++i)
{
if(i == current)
painter.setPen(m_current);
else
painter.setPen(m_normal);
if(!m_moving || i != selected)
painter.drawText(m_rects[i].x() - m_offset, m_metrics->ascent(), names.at(i));
if(i < m_rects.size() - 1)
{
painter.setPen(m_normal);
painter.drawText(m_rects[i].x() + m_rects[i].width() - m_offset, m_metrics->ascent(),
m_pl_separator);
}
}
for(int i = 0; i < m_extra_rects.size(); ++i)
{
painter.setPen(m_pressed_button == BUTTON_NEW_PL ? m_current : m_normal);
painter.drawText(m_extra_rects[i].x() - m_offset, m_metrics->ascent(), m_pl_button);
}
if(m_moving)
{
painter.setBrush(QBrush(m_selected_bg));
painter.setPen(m_selected_bg);
painter.drawRect(m_mouse_pos.x() - m_press_offset - 2, 0,
m_rects.at(selected).width() + 3, height());
painter.setPen(selected == current ? m_current : m_normal);
painter.drawText(m_mouse_pos.x() - m_press_offset,
m_metrics->ascent(), names.at(selected));
}
if(m_scrollable)
{
painter.drawPixmap(width()-40, 0, m_pixmap);
painter.setBrush(QBrush(m_normal_bg));
painter.setPen(m_normal_bg);
painter.drawRect(0,0,6,height());
}
}
void PlayListSelector::mousePressEvent (QMouseEvent *e)
{
m_pressed_button = findButton(e->pos());
if(m_pressed_button != BUTTON_UNKNOWN)
{
drawButtons();
update();
return;
}
bool selected = false;
int index = findPlayList(e->pos());
if(index != -1)
{
selected = true;
m_pl_manager->selectPlayList(index);
}
QPoint pp = e->pos();
pp.rx() += m_offset;
if(e->button() == Qt::RightButton)
{
m_moving = false;
update();
m_menu->exec(e->globalPos());
return;
}
else if(e->button() == Qt::MidButton && selected)
{
m_moving = false;
m_pl_manager->removePlayList(m_pl_manager->selectedPlayList());
}
else if(e->button() == Qt::LeftButton)
{
m_moving = true;
m_mouse_pos = e->pos();
m_press_offset = pp.x() - m_rects.at(m_pl_manager->selectedPlayListIndex()).x();
QWidget::mousePressEvent(e);
}
update();
}
void PlayListSelector::mouseReleaseEvent (QMouseEvent *e)
{
m_moving = false;
int released_button = findButton(e->pos());
if(released_button == m_pressed_button)
{
switch(released_button)
{
case BUTTON_NEW_PL:
m_pl_manager->createPlayList();
break;
case BUTTON_LEFT:
m_offset -= m_offset - firstVisible().x() + 9 + 2;
m_offset = qMax(0, m_offset);
break;
case BUTTON_RIGHT:
m_offset += lastVisible().right() - m_offset - width() + 42;
m_offset = qMin(m_offset, m_offset_max);
break;
default:
;
}
}
m_pressed_button = BUTTON_UNKNOWN;
drawButtons();
update();
QWidget::mouseReleaseEvent(e);
}
void PlayListSelector::mouseDoubleClickEvent (QMouseEvent *e)
{
if(e->button() == Qt::LeftButton && !(m_scrollable && (e->x() > width() - 40)))
ACTION(ActionManager::PL_RENAME)->trigger();
else
QWidget::mouseDoubleClickEvent(e);
}
void PlayListSelector::mouseMoveEvent(QMouseEvent *e)
{
if(!m_moving)
{
QWidget::mouseMoveEvent(e);
return;
}
m_mouse_pos = e->pos();
QPoint mp = e->pos();
mp.rx() += m_offset;
int dest = -1;
for(int i = 0; i < m_rects.count(); ++i)
{
int x_delta = mp.x() - m_rects.at(i).x();
if(x_delta < 0 || x_delta > m_rects.at(i).width())
continue;
if((x_delta > m_rects.at(i).width()/2 && m_pl_manager->selectedPlayListIndex() < i) ||
(x_delta < m_rects.at(i).width()/2 && m_pl_manager->selectedPlayListIndex() > i))
{
dest = i;
break;
}
}
if(dest == -1 || dest == m_pl_manager->selectedPlayListIndex())
{
update();
QWidget::mouseMoveEvent(e);
return;
}
m_pl_manager->move(m_pl_manager->selectedPlayListIndex(), dest);
update();
}
void PlayListSelector::resizeEvent (QResizeEvent *)
{
updateScrollers();
}
void PlayListSelector::loadColors()
{
m_normal.setNamedColor(m_skin->getPLValue("normal"));
m_current.setNamedColor(m_skin->getPLValue("current"));
m_normal_bg.setNamedColor(m_skin->getPLValue("normalbg"));
m_selected_bg.setNamedColor(m_skin->getPLValue("selectedbg"));
}
void PlayListSelector::drawButtons()
{
m_pixmap = QPixmap(40, height());
m_pixmap.fill(m_normal_bg);
QPainter painter(&m_pixmap);
painter.setRenderHint(QPainter::Antialiasing, true);
painter.setPen(m_pressed_button == BUTTON_LEFT ? m_current : m_normal);
painter.setBrush(QBrush(m_pressed_button == BUTTON_LEFT ? m_current : m_normal));
QPoint points[3] = {
QPoint(m_pixmap.width() - 25, height()/2 - 5),
QPoint(m_pixmap.width() - 35, height()/2-1),
QPoint(m_pixmap.width() - 25, height()/2 + 3),
};
painter.drawPolygon(points, 3);
painter.setPen(m_pressed_button == BUTTON_RIGHT ? m_current : m_normal);
painter.setBrush(QBrush(m_pressed_button == BUTTON_RIGHT ? m_current : m_normal));
QPoint points2[3] = {
QPoint(m_pixmap.width() - 20, height()/2 - 5),
QPoint(m_pixmap.width() - 10, height()/2-1),
QPoint(m_pixmap.width() - 20, height()/2 + 3),
};
painter.drawPolygon(points2, 3);
}
void PlayListSelector::updateScrollers()
{
int last_x = m_extra_rects.isEmpty() ? m_rects.last().right() : m_extra_rects.last().right();
m_scrollable = last_x > width();
if(m_scrollable)
{
m_offset_max = last_x - width() + 42;
m_offset = qMin(m_offset, m_offset_max);
}
else
{
m_offset = 0;
m_offset_max = 0;
}
}
QRect PlayListSelector::firstVisible()
{
for(int i = 0; i < m_rects.size(); ++i)
{
if(m_rects.at(i).right() + m_metrics->width(m_pl_separator) >= 9 + m_offset)
return m_rects.at(i);
}
return m_rects.at(0);
}
QRect PlayListSelector::lastVisible()
{
for(int i = m_extra_rects.size() - 1; i >= 0; --i)
{
if(m_extra_rects.at(i).x() - m_offset - m_metrics->width(" ") - 2 <= width() - 40)
return m_extra_rects.at(i);
}
for(int i = m_rects.size() - 1; i >= 0; --i)
{
if(m_rects.at(i).x() - m_offset - m_metrics->width(m_pl_separator) - 2 <= width() - 40)
return m_rects.at(i);
}
return m_extra_rects.isEmpty() ? m_rects.last() : m_extra_rects.last();
}
int PlayListSelector::findPlayList(QPoint pos)
{
pos.rx() += m_offset;
for(int i = 0; i < m_rects.count(); ++i)
{
if(m_rects.at(i).contains(pos))
return i;
}
return -1;
}
int PlayListSelector::findButton(QPoint pos)
{
if(m_scrollable)
{
if(pos.x() > width() - 20)
return BUTTON_RIGHT;
else if ((width() - 40 < pos.x()) && (pos.x() <= width() - 20))
return BUTTON_LEFT;
}
pos.rx() += m_offset;
for(int i = 0; i < m_extra_rects.count(); ++i)
{
if(m_extra_rects.at(i).contains(pos))
return BUTTON_NEW_PL;
}
return BUTTON_UNKNOWN;
}
