git.sesse.net Git - kdenlive/blob - src/titlewidget.cpp

   1 /***************************************************************************
   2                           titlewidget.h  -  description
   3                              -------------------
   4     begin                : Feb 28 2008
   5     copyright            : (C) 2008 by Marco Gittler
   6     email                : g.marco@freenet.de
   7  ***************************************************************************/
   8
   9 /***************************************************************************
  10  *                                                                         *
  11  *   This program is free software; you can redistribute it and/or modify  *
  12  *   it under the terms of the GNU General Public License as published by  *
  13  *   the Free Software Foundation; either version 2 of the License, or     *
  14  *   (at your option) any later version.                                   *
  15  *                                                                         *
  16  ***************************************************************************/
  17
  18 #include "titlewidget.h"
  19 #include "graphicsscenerectmove.h"
  20 #include <QGraphicsView>
  21 #include <QDomDocument>
  22 #include <KDebug>
  23 #include <QGraphicsItem>
  24 #include <QGraphicsSvgItem>
  25 #include <KFileDialog>
  26
  27 int settingUp=false;
  28
  29 TitleWidget::TitleWidget (QDialog *parent):QDialog(parent){
  30         setupUi(this);
  31         connect (newTextButton,SIGNAL(clicked()), this, SLOT( slotNewText()));
  32         connect (newRectButton,SIGNAL(clicked()), this, SLOT( slotNewRect()));
  33         connect (kcolorbutton, SIGNAL ( clicked()), this, SLOT( slotChangeBackground()) ) ;
  34         connect (horizontalSlider, SIGNAL ( valueChanged(int) ), this, SLOT( slotChangeBackground()) ) ;
  35         connect (ktextedit, SIGNAL(textChanged()), this , SLOT (textChanged()));
  36         connect (fontColorButton, SIGNAL ( clicked()), this, SLOT( textChanged()) ) ;
  37         //connect (fontBold, SIGNAL ( clicked()), this, SLOT( setBold()) ) ;
  38         connect (loadButton, SIGNAL ( clicked()), this, SLOT( loadTitle() ) ) ;
  39         connect (saveButton, SIGNAL ( clicked()), this, SLOT( saveTitle() ) ) ;
  40
  41
  42         connect (kfontrequester, SIGNAL ( fontSelected(const QFont &)), this, SLOT( textChanged()) ) ;
  43         connect(textAlpha, SIGNAL( valueChanged(int) ), this, SLOT (textChanged()));
  44         //connect (ktextedit, SIGNAL(selectionChanged()), this , SLOT (textChanged()));
  45
  46         connect(rectFAlpha, SIGNAL( valueChanged(int) ), this, SLOT (rectChanged()));
  47         connect(rectBAlpha, SIGNAL( valueChanged(int) ), this, SLOT (rectChanged()));
  48         connect(rectFColor, SIGNAL( clicked() ), this, SLOT (rectChanged()));
  49         connect(rectBColor, SIGNAL( clicked() ), this, SLOT (rectChanged()));
  50         connect(rectLineWidth, SIGNAL( valueChanged(int) ), this, SLOT (rectChanged()));
  51
  52         connect (startViewportX,SIGNAL(valueChanged(int)), this, SLOT( setupViewports()));
  53         connect (startViewportY,SIGNAL(valueChanged(int)), this, SLOT( setupViewports()));
  54         connect (startViewportSize,SIGNAL(valueChanged(int)), this, SLOT( setupViewports()));
  55         connect (endViewportX,SIGNAL(valueChanged(int)), this, SLOT( setupViewports()));
  56         connect (endViewportY,SIGNAL(valueChanged(int)), this, SLOT( setupViewports()));
  57         connect (endViewportSize,SIGNAL(valueChanged(int)), this, SLOT( setupViewports()));
  58
  59         connect (zValue, SIGNAL (valueChanged(int)), this, SLOT (zIndexChanged(int)));
  60         connect (svgfilename, SIGNAL (urlSelected(const KUrl&) ), this,SLOT( svgSelected(const KUrl &)) );
  61         connect (itemzoom, SIGNAL (valueChanged(int) ), this,SLOT( itemScaled(int)) );
  62         connect (itemrotate, SIGNAL (valueChanged(int) ), this,SLOT( itemRotate(int)) );
  63
  64         GraphicsSceneRectMove *scene=new GraphicsSceneRectMove(this);
  65
  66         // a gradient background
  67         QRadialGradient *gradient=new QRadialGradient(0, 0, 10);
  68         gradient->setSpread(QGradient::ReflectSpread);
  69         //scene->setBackgroundBrush(*gradient);
  70
  71         graphicsView->setScene(scene);
  72         m_titledocument.setScene(scene);
  73         connect (graphicsView->scene(), SIGNAL (selectionChanged()), this , SLOT( selectionChanged()));
  74         initViewports();
  75
  76         graphicsView->show();
  77         graphicsView->setRenderHint(QPainter::Antialiasing);
  78         graphicsView->setInteractive(true);
  79         graphicsView->resize(400, 300);
  80
  81         toolBox->setItemEnabled(2,false);
  82         toolBox->setItemEnabled(3,false);
  83 }
  84
  85 void TitleWidget::initViewports(){
  86         startViewport=new QGraphicsPolygonItem(QPolygonF(QRectF(0,0,0,0)));
  87         endViewport=new QGraphicsPolygonItem(QPolygonF(QRectF(0,0,0,0)));
  88
  89         QPen startpen(Qt::DotLine);
  90         QPen endpen(Qt::DashDotLine);
  91         startpen.setColor(QColor(100,200,100,140));
  92         endpen.setColor(QColor(200,100,100,140));
  93
  94         startViewport->setPen(startpen);
  95         endViewport->setPen(endpen);
  96
  97         startViewportSize->setValue(40);
  98         endViewportSize->setValue(40);
  99
 100         startViewport->setZValue(-1000);
 101         endViewport->setZValue(-1000);
 102
 103         startViewport->setFlags(/*QGraphicsItem::ItemIsMovable|*/QGraphicsItem::ItemIsSelectable);
 104         endViewport->setFlags(/*QGraphicsItem::ItemIsMovable|*/QGraphicsItem::ItemIsSelectable);
 105
 106         graphicsView->scene()->addItem(startViewport);
 107         graphicsView->scene()->addItem(endViewport);
 108 }
 109
 110 void TitleWidget::slotNewRect(){
 111
 112         QGraphicsRectItem * ri=graphicsView->scene()->addRect(-50,-50,100,100);
 113         ri->setFlags(QGraphicsItem::ItemIsMovable|QGraphicsItem::ItemIsSelectable);
 114 }
 115
 116 void TitleWidget::slotNewText(){
 117         QGraphicsTextItem *tt=graphicsView->scene()->addText("Text here");
 118         tt->setFlags(QGraphicsItem::ItemIsMovable|QGraphicsItem::ItemIsSelectable);
 119         tt->setTextInteractionFlags (Qt::TextEditorInteraction);
 120         connect (tt->document(), SIGNAL (contentsChanged()), this, SLOT(selectionChanged()));
 121         kDebug() << tt->metaObject()->className();
 122         /*QGraphicsRectItem * ri=graphicsView->scene()->addRect(-50,-50,100,100);
 123         ri->setFlags(QGraphicsItem::ItemIsMovable|QGraphicsItem::ItemIsSelectable);*/
 124
 125 }
 126
 127 void TitleWidget::zIndexChanged(int v){
 128         QList<QGraphicsItem*> l=graphicsView->scene()->selectedItems();
 129         if (l.size()>=1){
 130                 l[0]->setZValue(v);
 131         }
 132 }
 133
 134 void TitleWidget::selectionChanged(){
 135         QList<QGraphicsItem*> l=graphicsView->scene()->selectedItems();
 136         toolBox->setItemEnabled(2,false);
 137         toolBox->setItemEnabled(3,false);
 138         if (l.size()==1){
 139
 140                 if ((l[0])->type()==8  ){
 141                         QGraphicsTextItem* i=((QGraphicsTextItem*)l[0]);
 142                         if (l[0]->hasFocus() )
 143                         ktextedit->setHtml(i->toHtml());
 144                         toolBox->setCurrentIndex(2);
 145                         toolBox->setItemEnabled(2,true);
 146                 }else
 147                 if ((l[0])->type()==3){
 148                         settingUp=true;
 149                         QGraphicsRectItem *rec=((QGraphicsRectItem*)l[0]);
 150                         toolBox->setCurrentIndex(3);
 151                         toolBox->setItemEnabled(3,true);
 152                         rectFAlpha->setValue(rec->pen().color().alpha());
 153                         rectBAlpha->setValue(rec->brush().isOpaque() ? rec->brush().color().alpha() : 0);
 154                         kDebug() << rec->brush().color().alpha();
 155                         QColor fcol=rec->pen().color();
 156                         QColor bcol=rec->brush().color();
 157                         //fcol.setAlpha(255);
 158                         //bcol.setAlpha(255);
 159                         rectFColor->setColor(fcol);
 160                         rectBColor->setColor(bcol);
 161                         settingUp=false;
 162                         rectLineWidth->setValue(rec->pen().width());
 163                 }
 164                 else{
 165                         //toolBox->setCurrentIndex(0);
 166                 }
 167                 zValue->setValue((int)l[0]->zValue());
 168                 itemzoom->setValue((int)transformations[l[0]].scalex*100);
 169                 itemrotate->setValue((int)transformations[l[0]].rotate);
 170         }
 171 }
 172
 173 void TitleWidget::slotChangeBackground(){
 174         QColor color=kcolorbutton->color();
 175         color.setAlpha(horizontalSlider->value());
 176         graphicsView->scene()->setBackgroundBrush(QBrush(color));
 177 }
 178
 179 void TitleWidget::textChanged(){
 180         QList<QGraphicsItem*> l=graphicsView->scene()->selectedItems();
 181         if (l.size()==1 && (l[0])->type()==8 && !l[0]->hasFocus()){
 182                 kDebug() << ktextedit->document()->toHtml();
 183                 ((QGraphicsTextItem*)l[0])->setHtml(ktextedit->toHtml());
 184         }
 185 }
 186
 187 void TitleWidget::rectChanged(){
 188         QList<QGraphicsItem*> l=graphicsView->scene()->selectedItems();
 189         if (l.size()==1 && (l[0])->type()==3 && !settingUp){
 190                 QGraphicsRectItem *rec=(QGraphicsRectItem*)l[0];
 191                 QColor f=rectFColor->color();
 192                 f.setAlpha(rectFAlpha->value());
 193                 QPen penf(f);
 194                 penf.setWidth(rectLineWidth->value());
 195                 rec->setPen(penf);
 196                 QColor b=rectBColor->color();
 197                 b.setAlpha(rectBAlpha->value());
 198                 rec->setBrush(QBrush(b));
 199         }
 200 }
 201
 202 void TitleWidget::fontBold(){
 203         QList<QGraphicsItem*> l=graphicsView->scene()->selectedItems();
 204         if (l.size()==1 && (l[0])->type()==8 && !l[0]->hasFocus()){
 205                 //ktextedit->document()->setTextOption();
 206         }
 207 }
 208
 209 void TitleWidget::svgSelected(const KUrl& u){
 210         QGraphicsSvgItem *svg=new QGraphicsSvgItem(u.toLocalFile());
 211         svg->setFlags(QGraphicsItem::ItemIsMovable|QGraphicsItem::ItemIsSelectable);
 212         graphicsView->scene()->addItem(svg);
 213 }
 214
 215 void TitleWidget::itemScaled(int val) {
 216         QList<QGraphicsItem*> l=graphicsView->scene()->selectedItems();
 217         if (l.size()==1){
 218                 Transform x=transformations[l[0]];
 219                 x.scalex=(double)val/100.0;
 220                 x.scaley=(double)val/100.0;
 221                 QTransform qtrans;
 222                 qtrans.scale(x.scalex,x.scaley);
 223                 qtrans.rotate(x.rotate);
 224                 l[0]->setTransform(qtrans);
 225                 transformations[l[0]]=x;
 226         }
 227 }
 228
 229 void TitleWidget::itemRotate(int val) {
 230         QList<QGraphicsItem*> l=graphicsView->scene()->selectedItems();
 231         if (l.size()==1){
 232                 Transform x=transformations[l[0]];
 233                 x.rotate=(double)val;
 234                 QTransform qtrans;
 235                 qtrans.scale(x.scalex,x.scaley);
 236                 qtrans.rotate(x.rotate);
 237                 l[0]->setTransform(qtrans);
 238                 transformations[l[0]]=x;
 239         }
 240 }
 241
 242 void TitleWidget::setupViewports(){
 243         double aspect_ratio=4.0/3.0;//read from project
 244
 245         QRectF sp(0,0,0,0);
 246         QRectF ep(0,0,0,0);
 247
 248         double sv_size=startViewportSize->value();
 249         double ev_size=endViewportSize->value();
 250         sp.adjust(-sv_size,-sv_size/aspect_ratio,sv_size,sv_size/aspect_ratio);
 251         ep.adjust(-ev_size,-ev_size/aspect_ratio,ev_size,ev_size/aspect_ratio);
 252
 253         startViewport->setPos(startViewportX->value(), startViewportY->value());
 254         endViewport->setPos(endViewportX->value(),endViewportY->value());
 255
 256         startViewport->setPolygon(QPolygonF(sp));
 257         endViewport->setPolygon(QPolygonF(ep));
 258
 259 }
 260
 261 void TitleWidget::loadTitle(){
 262         KUrl url= KFileDialog::getOpenUrl( KUrl(), "*.kdenlivetitle",this,tr("Save Title"));
 263         m_titledocument.loadDocument(url,startViewport,endViewport);
 264 }
 265
 266 void TitleWidget::saveTitle(){
 267         KUrl url= KFileDialog::getSaveUrl( KUrl(), "*.kdenlivetitle",this,tr("Save Title"));
 268         m_titledocument.saveDocument(url,startViewport,endViewport);
 269 }
 270
 271 #include "moc_titlewidget.cpp"
 272