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             } else {
 164                 //toolBox->setCurrentIndex(0);
 165             }
 166         zValue->setValue((int)l[0]->zValue());
 167         itemzoom->setValue((int)transformations[l[0]].scalex*100);
 168         itemrotate->setValue((int)transformations[l[0]].rotate);
 169     }
 170 }
 171
 172 void TitleWidget::slotChangeBackground() {
 173     QColor color = kcolorbutton->color();
 174     color.setAlpha(horizontalSlider->value());
 175     graphicsView->scene()->setBackgroundBrush(QBrush(color));
 176 }
 177
 178 void TitleWidget::textChanged() {
 179     QList<QGraphicsItem*> l = graphicsView->scene()->selectedItems();
 180     if (l.size() == 1 && (l[0])->type() == 8 && !l[0]->hasFocus()) {
 181         kDebug() << ktextedit->document()->toHtml();
 182         ((QGraphicsTextItem*)l[0])->setHtml(ktextedit->toHtml());
 183     }
 184 }
 185
 186 void TitleWidget::rectChanged() {
 187     QList<QGraphicsItem*> l = graphicsView->scene()->selectedItems();
 188     if (l.size() == 1 && (l[0])->type() == 3 && !settingUp) {
 189         QGraphicsRectItem *rec = (QGraphicsRectItem*)l[0];
 190         QColor f = rectFColor->color();
 191         f.setAlpha(rectFAlpha->value());
 192         QPen penf(f);
 193         penf.setWidth(rectLineWidth->value());
 194         rec->setPen(penf);
 195         QColor b = rectBColor->color();
 196         b.setAlpha(rectBAlpha->value());
 197         rec->setBrush(QBrush(b));
 198     }
 199 }
 200
 201 void TitleWidget::fontBold() {
 202     QList<QGraphicsItem*> l = graphicsView->scene()->selectedItems();
 203     if (l.size() == 1 && (l[0])->type() == 8 && !l[0]->hasFocus()) {
 204         //ktextedit->document()->setTextOption();
 205     }
 206 }
 207
 208 void TitleWidget::svgSelected(const KUrl& u) {
 209     QGraphicsSvgItem *svg = new QGraphicsSvgItem(u.toLocalFile());
 210     svg->setFlags(QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemIsSelectable);
 211     graphicsView->scene()->addItem(svg);
 212 }
 213
 214 void TitleWidget::itemScaled(int val) {
 215     QList<QGraphicsItem*> l = graphicsView->scene()->selectedItems();
 216     if (l.size() == 1) {
 217         Transform x = transformations[l[0]];
 218         x.scalex = (double)val / 100.0;
 219         x.scaley = (double)val / 100.0;
 220         QTransform qtrans;
 221         qtrans.scale(x.scalex, x.scaley);
 222         qtrans.rotate(x.rotate);
 223         l[0]->setTransform(qtrans);
 224         transformations[l[0]] = x;
 225     }
 226 }
 227
 228 void TitleWidget::itemRotate(int val) {
 229     QList<QGraphicsItem*> l = graphicsView->scene()->selectedItems();
 230     if (l.size() == 1) {
 231         Transform x = transformations[l[0]];
 232         x.rotate = (double)val;
 233         QTransform qtrans;
 234         qtrans.scale(x.scalex, x.scaley);
 235         qtrans.rotate(x.rotate);
 236         l[0]->setTransform(qtrans);
 237         transformations[l[0]] = x;
 238     }
 239 }
 240
 241 void TitleWidget::setupViewports() {
 242     double aspect_ratio = 4.0 / 3.0;//read from project
 243
 244     QRectF sp(0, 0, 0, 0);
 245     QRectF ep(0, 0, 0, 0);
 246
 247     double sv_size = startViewportSize->value();
 248     double ev_size = endViewportSize->value();
 249     sp.adjust(-sv_size, -sv_size / aspect_ratio, sv_size, sv_size / aspect_ratio);
 250     ep.adjust(-ev_size, -ev_size / aspect_ratio, ev_size, ev_size / aspect_ratio);
 251
 252     startViewport->setPos(startViewportX->value(), startViewportY->value());
 253     endViewport->setPos(endViewportX->value(), endViewportY->value());
 254
 255     startViewport->setPolygon(QPolygonF(sp));
 256     endViewport->setPolygon(QPolygonF(ep));
 257
 258 }
 259
 260 void TitleWidget::loadTitle() {
 261     KUrl url = KFileDialog::getOpenUrl(KUrl(), "*.kdenlivetitle", this, tr("Save Title"));
 262     m_titledocument.loadDocument(url, startViewport, endViewport);
 263 }
 264
 265 void TitleWidget::saveTitle() {
 266     KUrl url = KFileDialog::getSaveUrl(KUrl(), "*.kdenlivetitle", this, tr("Save Title"));
 267     m_titledocument.saveDocument(url, startViewport, endViewport);
 268 }
 269
 270 #include "moc_titlewidget.cpp"
 271