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