/***************************************************************************
* Copyright (C) 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 <QContextMenuEvent>
#include <QMenu>
#include <QLineEdit>
#include <QInputDialog>
#include <QIcon>
#include <qmmp/qmmp.h>
#include <qmmpui/qmmpuisettings.h>
#include <qmmpui/playlistheadermodel.h>
#include "skin.h"
#include "playlistheader.h"
PlayListHeader::PlayListHeader(QWidget *parent) :
QWidget(parent)
{
setMouseTracking(true);
m_metrics = 0;
m_padding = 0;
m_show_number = false;
m_align_numbres = false;
m_number_width = 0;
m_task = NO_TASK;
m_model = QmmpUiSettings::instance()->columnManager();
m_skin = Skin::instance();
m_menu = new QMenu(this);
m_menu->addAction(QIcon::fromTheme("list-add"), tr("Add column"), this, SLOT(addColumn()));
m_menu->addAction(QIcon::fromTheme("configure"), tr("Edit column"), this, SLOT(editColumn()));
m_autoResize = m_menu->addAction(tr("Auto-resize"), this, SLOT(setAutoResize(bool)));
m_autoResize->setCheckable(true);
m_menu->addSeparator();
m_menu->addAction(QIcon::fromTheme("list-remove"), tr("Remove column"), this, SLOT(removeColumn()));
connect(m_skin, SIGNAL(skinChanged()), this, SLOT(updateSkin()));
loadColors();
readSettings();
}
PlayListHeader::~PlayListHeader()
{
if (m_metrics)
delete m_metrics;
m_metrics = 0;
}
void PlayListHeader::readSettings()
{
QSettings settings(Qmmp::configFile(), QSettings::IniFormat);
settings.beginGroup("Skinned");
QFont pl_font;
pl_font.fromString(settings.value("pl_font", qApp->font().toString()).toString());
m_font.fromString(settings.value("header_font", qApp->font().toString()).toString());
if (m_metrics)
{
delete m_metrics;
m_metrics = 0;
}
m_metrics = new QFontMetrics(pl_font);
m_show_number = settings.value ("pl_show_numbers", true).toBool();
m_align_numbres = settings.value ("pl_align_numbers", false).toBool();
m_padding = m_metrics->width("9")/2;
settings.endGroup();
updateColumns();
}
void PlayListHeader::setNumberWidth(int width)
{
if(width != m_number_width)
{
m_number_width = width;
updateColumns();
}
}
void PlayListHeader::updateColumns()
{
m_rects.clear();
m_names.clear();
int sx = 5;
if(m_number_width)
sx += m_number_width + 2 * m_padding;
if(m_model->count() == 1)
{
m_rects << QRect(sx, 0, width() - sx - 5, height());
m_names << m_model->name(0);
return;
}
for(int i = 0; i < m_model->count(); ++i)
{
m_rects << QRect(sx, 0, m_model->size(i), height());
m_names << m_metrics->elidedText(m_model->name(i), Qt::ElideRight,
m_model->size(i) - 2 * m_padding);
sx += m_model->size(i);
}
update();
}
void PlayListHeader::updateSkin()
{
loadColors();
update();
}
void PlayListHeader::addColumn()
{
int column = findColumn(m_pressed_pos);
if(column < 0 && m_pressed_pos.x() > m_rects.last().right())
column = m_model->count();
else if(column < 0 && m_pressed_pos.x() < m_rects.first().x())
column = 0;
if(column < 0)
return;
m_model->insert(column, tr("Title"), "%t");
m_model->execEditor(column);
}
void PlayListHeader::editColumn()
{
if(m_pressed_column < 0)
return;
m_model->execEditor(m_pressed_column);
}
void PlayListHeader::removeColumn()
{
if(m_pressed_column < 0)
return;
m_model->remove(m_pressed_column);
}
void PlayListHeader::setAutoResize(bool yes)
{
if(m_pressed_column < 0)
return;
m_model->setAutoResize(yes ? m_pressed_column : -1);
}
void PlayListHeader::mousePressEvent(QMouseEvent *e)
{
if(e->button() == Qt::LeftButton)
{
m_pressed_column = findColumn(e->pos());
if(m_pressed_column >= 0)
{
m_pressed_pos = e->pos();
m_mouse_pos = e->pos();
if(e->pos().x() > m_rects[m_pressed_column].right() - m_metrics->width("9"))
{
m_old_size = m_model->size(m_pressed_column);
m_task = RESIZE;
}
else
{
m_press_offset = e->pos().x() - m_rects.at(m_pressed_column).x();
m_task = MOVE;
}
}
}
else
{
m_task = NO_TASK;
update();
}
}
void PlayListHeader::mouseReleaseEvent(QMouseEvent *)
{
m_task = NO_TASK;
update();
}
void PlayListHeader::mouseMoveEvent(QMouseEvent *e)
{
if(m_task == RESIZE && m_model->count() > 1)
{
m_model->resize(m_pressed_column, m_old_size + e->pos().x() - m_pressed_pos.x());
}
else if(m_task == MOVE)
{
m_mouse_pos = e->pos();
int dest = -1;
for(int i = 0; i < m_rects.count(); ++i)
{
int x_delta = m_mouse_pos.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_pressed_column < i) ||
(x_delta < m_rects.at(i).width()/2 && m_pressed_column > i))
{
dest = i;
break;
}
}
if(dest == -1 || dest == m_pressed_column)
{
update();
QWidget::mouseMoveEvent(e);
return;
}
m_model->move(m_pressed_column, dest);
m_pressed_column = dest;
update();
}
else if(e->button() == Qt::NoButton)
{
int column = findColumn(e->pos());
if(column >= 0 && e->pos().x() > m_rects[column].right() - m_metrics->width("9"))
setCursor(Qt::SplitHCursor);
else
setCursor(Qt::ArrowCursor);
}
}
void PlayListHeader::resizeEvent(QResizeEvent *e)
{
if(m_model->count() == 1)
{
updateColumns();
return;
}
if(e->oldSize().width() <= 10)
return;
int delta = e->size().width() - e->oldSize().width();
int index = m_model->autoResizeColumn();
if(index >= 0)
m_model->resize(index, m_model->size(index) + delta);
}
void PlayListHeader::contextMenuEvent(QContextMenuEvent *e)
{
m_pressed_pos = e->pos();
m_pressed_column = findColumn(e->pos());
if(m_pressed_column >= 0)
{
m_autoResize->setChecked(m_model->autoResizeColumn() == m_pressed_column);
m_autoResize->setEnabled(true);
foreach (QAction *action, m_menu->actions())
action->setVisible(true);
}
else
{
foreach (QAction *action, m_menu->actions())
{
if(action != m_menu->actions().first())
action->setVisible(false);
}
}
m_menu->exec(e->globalPos());
}
void PlayListHeader::paintEvent(QPaintEvent *)
{
QPainter painter(this);
painter.setBrush(m_normal);
painter.setPen(m_normal);
painter.setFont(m_font);
painter.drawRect(5,-1,width()-10,height()+1);
painter.setPen(m_normal_bg);
if(m_number_width)
{
painter.drawLine(m_rects.at(0).x(), 0,
m_rects.at(0).x(), height());
}
if(m_names.count() == 1)
{
painter.drawText(m_rects[0].x() + m_padding, m_metrics->ascent(), m_names[0]);
return;
}
for(int i = 0; i < m_rects.count(); ++i)
{
if(m_task == MOVE && i == m_pressed_column)
{
painter.setBrush(m_normal_bg);
painter.setPen(m_current);
painter.drawRect(m_rects[i].x(), 0,
m_rects[i].width(), height()-1);
painter.setBrush(m_normal);
painter.setPen(m_normal_bg);
continue;
}
painter.drawText(m_rects[i].x() + m_padding, m_metrics->ascent(), m_names[i]);
painter.drawLine(m_rects[i].right()+1, 0,
m_rects[i].right()+1, height()+1);
}
if(m_task == MOVE)
{
painter.setPen(m_normal);
painter.drawRect(m_mouse_pos.x() - m_press_offset, 0,
m_rects.at(m_pressed_column).width(), height());
painter.setPen(m_normal_bg);
painter.drawText(m_mouse_pos.x() - m_press_offset + m_padding,
m_metrics->ascent(), m_names.at(m_pressed_column));
}
}
void PlayListHeader::loadColors()
{
m_normal.setNamedColor(m_skin->getPLValue("normal"));
m_normal_bg.setNamedColor(m_skin->getPLValue("normalbg"));
m_current.setNamedColor(m_skin->getPLValue("current"));
}
int PlayListHeader::findColumn(QPoint pos)
{
for(int i = 0; i < m_rects.count(); ++i)
{
if(m_rects.at(i).contains(pos))
return i;
}
return -1;
}
