364af4f574
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27378 a1c6a512-1295-4272-9138-f99709370657
409 lines
11 KiB
C++
409 lines
11 KiB
C++
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2010 Robert Bieber
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include <QPainter>
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#include <QPainterPath>
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#include <cmath>
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#include "rbviewport.h"
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#include "rbscreen.h"
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#include "rbrenderinfo.h"
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#include "parsetreemodel.h"
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#include "tag_table.h"
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#include "skin_parser.h"
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/* Pixels/second of text scrolling */
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const double RBViewport::scrollRate = 30;
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RBViewport::RBViewport(skin_element* node, const RBRenderInfo& info)
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: QGraphicsItem(info.screen()), foreground(info.screen()->foreground()),
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background(info.screen()->background()), textOffset(0,0),
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screen(info.screen()), textAlign(Left), showStatusBar(false),
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statusBarTexture(":/render/statusbar.png"),
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leftGraphic(0), centerGraphic(0), rightGraphic(0), scrollTime(0)
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{
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if(!node->tag)
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{
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/* Default viewport takes up the entire screen */
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size = QRectF(0, 0, info.screen()->getWidth(),
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info.screen()->getHeight());
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customUI = false;
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font = screen->getFont(1);
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if(info.model()->rowCount(QModelIndex()) > 1)
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{
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/* If there is more than one viewport in the document */
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textOffset.setX(-1);
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}
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else
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{
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setVisible(true);
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}
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}
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else
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{
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int param = 0;
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QString ident;
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int x,y,w,h;
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/* Rendering one of the other types of viewport */
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switch(node->tag->name[1])
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{
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case '\0':
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customUI = false;
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param = 0;
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break;
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case 'l':
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/* A preloaded viewport definition */
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ident = node->params[0].data.text;
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customUI = false;
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if(!screen->viewPortDisplayed(ident))
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hide();
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info.screen()->loadViewport(ident, this);
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param = 1;
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break;
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case 'i':
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/* Custom UI Viewport */
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customUI = true;
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param = 1;
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if(node->params[0].type == skin_tag_parameter::DEFAULT)
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{
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setVisible(true);
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}
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else
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{
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hide();
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info.screen()->loadViewport(ident, this);
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}
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break;
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}
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/* Now we grab the info common to all viewports */
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x = node->params[param++].data.numeric;
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if(x < 0)
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x = info.screen()->boundingRect().right() + x;
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y = node->params[param++].data.numeric;
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if(y < 0)
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y = info.screen()->boundingRect().bottom() + y;
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if(node->params[param].type == skin_tag_parameter::DEFAULT)
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w = info.screen()->getWidth() - x;
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else
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w = node->params[param].data.numeric;
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if(w < 0)
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w = info.screen()->getWidth() + w - x;
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if(node->params[++param].type == skin_tag_parameter::DEFAULT)
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h = info.screen()->getHeight() - y;
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else
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h = node->params[param].data.numeric;
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if(h < 0)
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h = info.screen()->getHeight() + h - y;
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/* Adjusting to screen coordinates if necessary */
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if(screen->parentItem() != 0)
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{
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x -= screen->parentItem()->pos().x();
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y -= screen->parentItem()->pos().y();
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}
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if(node->params[++param].type == skin_tag_parameter::DEFAULT)
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font = screen->getFont(1);
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else
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font = screen->getFont(node->params[param].data.numeric);
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setPos(x, y);
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size = QRectF(0, 0, w, h);
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}
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debug = info.device()->data("showviewports").toBool();
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lineHeight = font->lineHeight();
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if(customUI)
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screen->setCustomUI(this);
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}
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RBViewport::~RBViewport()
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{
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}
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QPainterPath RBViewport::shape() const
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{
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QPainterPath retval;
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retval.addRect(size);
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return retval;
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}
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QRectF RBViewport::boundingRect() const
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{
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return size;
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}
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void RBViewport::paint(QPainter *painter,
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const QStyleOptionGraphicsItem *option, QWidget *widget)
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{
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if(!screen->hasBackdrop() && background != screen->background())
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{
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painter->fillRect(size, QBrush(background));
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}
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painter->setBrush(Qt::NoBrush);
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painter->setPen(customUI ? Qt::blue : Qt::red);
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if(debug)
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painter->drawRect(size);
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if(showStatusBar)
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painter->fillRect(QRectF(0, 0, size.width(), 8), statusBarTexture);
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}
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void RBViewport::newLine()
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{
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if(textOffset.x() < 0)
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return;
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if(leftText != "")
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alignLeft();
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if(centerText != "")
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alignCenter();
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if(rightText != "")
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alignRight();
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textOffset.setY(textOffset.y() + lineHeight);
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textOffset.setX(0);
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textAlign = Left;
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leftText.clear();
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rightText.clear();
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centerText.clear();
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leftGraphic = 0;
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centerGraphic = 0;
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rightGraphic = 0;
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scrollTime = 0;
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}
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void RBViewport::write(QString text)
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{
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if(textOffset.x() < 0)
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return;
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if(textAlign == Left)
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{
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leftText.append(text);
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}
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else if(textAlign == Center)
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{
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centerText.append(text);
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}
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else if(textAlign == Right)
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{
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rightText.append(text);
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}
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}
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void RBViewport::showPlaylist(const RBRenderInfo &info, int start,
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skin_element *id3, skin_element *noId3)
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{
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/* Determining whether ID3 info is available */
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skin_element* root = id3;
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/* The line will be a linked list */
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if(root->children_count > 0)
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root = root->children[0];
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int song = start + info.device()->data("pp").toInt();
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int numSongs = info.device()->data("pe").toInt();
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int halfWay = (numSongs - song) / 2 + 1 + song;
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while(song <= numSongs && textOffset.y() + lineHeight < size.height())
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{
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if(song == halfWay)
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{
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root = noId3;
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if(root->children_count > 0)
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root = root->children[0];
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}
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skin_element* current = root;
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while(current)
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{
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if(current->type == TEXT)
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{
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write(QString((char*)current->data));
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}
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if(current->type == TAG)
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{
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QString tag(current->tag->name);
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if(tag == "pp")
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{
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write(QString::number(song));
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}
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else if(tag == "pt")
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{
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write(QObject::tr("00:00"));
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}
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else if(tag[0] == 'i' || tag[0] == 'f')
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{
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if(song == info.device()->data("pp").toInt())
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{
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write(info.device()->data(tag).toString());
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}
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else
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{
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/* If we're not on the current track, use the next
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* track info
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*/
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if(tag[0] == 'i')
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tag = QString("I") + tag.right(1);
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else
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tag = QString("F") + tag.right(1);
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write(info.device()->data(tag).toString());
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}
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}
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}
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current = current->next;
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}
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newLine();
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song++;
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}
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}
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void RBViewport::alignLeft()
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{
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int y = textOffset.y();
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if(leftGraphic)
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delete leftGraphic;
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leftGraphic = font->renderText(leftText, foreground, size.width(), this);
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leftGraphic->setPos(0, y);
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/* Setting scroll position if necessary */
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int difference = leftGraphic->realWidth()
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- leftGraphic->boundingRect().width();
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if(difference > 0)
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{
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/* Subtracting out complete cycles */
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double totalTime = 2 * difference / scrollRate;
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scrollTime -= totalTime * std::floor(scrollTime / totalTime);
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/* Calculating the offset */
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if(scrollTime < static_cast<double>(difference) / scrollRate)
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{
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leftGraphic->setOffset(scrollRate * scrollTime);
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}
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else
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{
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scrollTime -= static_cast<double>(difference) / scrollRate;
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leftGraphic->setOffset(difference - scrollRate * scrollTime);
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}
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}
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}
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void RBViewport::alignCenter()
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{
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int y = textOffset.y();
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int x = 0;
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if(centerGraphic)
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delete centerGraphic;
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centerGraphic = font->renderText(centerText, foreground, size.width(),
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this);
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if(centerGraphic->boundingRect().width() < size.width())
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{
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x = size.width() - centerGraphic->boundingRect().width();
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x /= 2;
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}
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else
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{
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x = 0;
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}
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centerGraphic->setPos(x, y);
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/* Setting scroll position if necessary */
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int difference = centerGraphic->realWidth()
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- centerGraphic->boundingRect().width();
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if(difference > 0)
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{
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/* Subtracting out complete cycles */
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double totalTime = 2 * difference / scrollRate;
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scrollTime -= totalTime * std::floor(scrollTime / totalTime);
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/* Calculating the offset */
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if(scrollTime < static_cast<double>(difference) / scrollRate)
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{
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centerGraphic->setOffset(scrollRate * scrollTime);
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}
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else
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{
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scrollTime -= static_cast<double>(difference) / scrollRate;
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centerGraphic->setOffset(difference - scrollRate * scrollTime);
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}
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}
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}
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void RBViewport::alignRight()
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{
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int y = textOffset.y();
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int x = 0;
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if(rightGraphic)
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delete rightGraphic;
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rightGraphic = font->renderText(rightText, foreground, size.width(), this);
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if(rightGraphic->boundingRect().width() < size.width())
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x = size.width() - rightGraphic->boundingRect().width();
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else
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x = 0;
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rightGraphic->setPos(x, y);
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/* Setting scroll position if necessary */
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int difference = rightGraphic->realWidth()
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- rightGraphic->boundingRect().width();
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if(difference > 0)
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{
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/* Subtracting out complete cycles */
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double totalTime = 2 * difference / scrollRate;
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scrollTime -= totalTime * std::floor(scrollTime / totalTime);
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/* Calculating the offset */
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if(scrollTime < static_cast<double>(difference) / scrollRate)
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{
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rightGraphic->setOffset(scrollRate * scrollTime);
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}
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else
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{
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scrollTime -= static_cast<double>(difference) / scrollRate;
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rightGraphic->setOffset(difference - scrollRate * scrollTime);
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}
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}
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}
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