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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commite2de64d6f1beb9e492daf5b886e19933c1fa41dd (patch)
tree9047cf9e6b5c43878d5bf82660adae77ceee097a /kmid/kdisptext.cpp
downloadtdemultimedia-e2de64d6f1beb9e492daf5b886e19933c1fa41dd.tar.gz
tdemultimedia-e2de64d6f1beb9e492daf5b886e19933c1fa41dd.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdemultimedia@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'kmid/kdisptext.cpp')
-rw-r--r--kmid/kdisptext.cpp640
1 files changed, 640 insertions, 0 deletions
diff --git a/kmid/kdisptext.cpp b/kmid/kdisptext.cpp
new file mode 100644
index 00000000..c871e55a
--- /dev/null
+++ b/kmid/kdisptext.cpp
@@ -0,0 +1,640 @@
+/**************************************************************************
+
+ kdisptext.cpp - The widget that displays the karaoke/lyrics text
+ Copyright (C) 1997,98 Antonio Larrosa Jimenez
+
+ 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+ Send comments and bug fixes to larrosa@kde.org
+ or to Antonio Larrosa, Rio Arnoya, 10 5B, 29006 Malaga, Spain
+
+***************************************************************************/
+#include "kdisptext.h"
+#include <qpainter.h>
+#include <qfont.h>
+#include <qfontmetrics.h>
+#include <qrect.h>
+#include <qtextcodec.h>
+
+#include <kconfig.h>
+#include <kglobal.h>
+#include <kglobalsettings.h>
+#include <kinstance.h>
+#include <klocale.h>
+#include "version.h"
+
+
+#define NUMPREVLINES 2
+//#define DRAW_BOUNDING_RECTS
+
+
+KDisplayText::KDisplayText(QWidget *parent,const char *name) : QScrollView(parent,name)
+{
+ first_line_[0]=first_line_[1]=NULL;
+ linked_list_[0]=linked_list_[1]=NULL;
+ cursor_line_[0]=cursor_line_[1]=NULL;
+ cursor_[0]=cursor_[1]=NULL;
+ nlines_[0]=nlines_[1]=0;
+ linked_list=NULL;
+ cursor_line=NULL;
+ first_line=NULL;
+ cursor=NULL;
+ nlines=0;
+ lyrics_codec=KGlobal::locale()->codecForEncoding();
+
+ viewport()->setBackgroundColor(QColor (110,110,110));
+// setBackgroundMode(NoBackground);
+ KConfig *kcfg=KGlobal::instance()->config();
+ kcfg->setGroup("KMid");
+ typeoftextevents=kcfg->readNumEntry("TypeOfTextEvents",1);
+ QFont *qtextfontdefault=new QFont(KGlobalSettings::fixedFont().family(),22);
+ qtextfont=new QFont(kcfg->readFontEntry("KaraokeFont",qtextfontdefault));
+ delete qtextfontdefault;
+ qfmetr=new QFontMetrics(*qtextfont);
+ nvisiblelines=height()/qfmetr->lineSpacing();
+ autoscrollv=0;
+}
+
+KDisplayText::~KDisplayText()
+{
+ RemoveLinkedList();
+}
+
+/*void KDisplayText::PreDestroyer(void)
+{
+ delete qfmetr;
+ delete qtextfont;
+}
+*/
+
+void KDisplayText::RemoveLine(kdispt_line *tmpl)
+{
+ kdispt_ev *tmpe;
+ while (tmpl->ev!=NULL)
+ {
+ tmpe=tmpl->ev;
+ tmpl->ev=tmpe->next;
+ // delete tmpe->spev; Remember that the Special Events that this pointer
+ // points to is the same that the Player object has instantiated
+ delete tmpe;
+ }
+}
+
+void KDisplayText::RemoveLinkedList(void)
+{
+ cursor=NULL;
+ cursor_line=NULL;
+ first_line=NULL;
+ linked_list=NULL;
+ nlines=0;
+ nlines_[0]=nlines_[1]=0;
+ first_line_[0]=first_line_[1]=NULL;
+ cursor_line_[0]=cursor_line_[1]=NULL;
+ cursor_[0]=cursor_[1]=NULL;
+
+ kdispt_line *tmpl;
+ for (int i=0;i<2;i++)
+ {
+ while (linked_list_[i]!=NULL)
+ {
+ RemoveLine(linked_list_[i]);
+ tmpl=linked_list_[i];
+ linked_list_[i]=linked_list_[i]->next;
+ delete tmpl;
+ }
+ }
+}
+
+void KDisplayText::ClearEv(bool totally)
+{
+ RemoveLinkedList();
+ if (totally)
+ {
+ killTimers();
+ autoscrollv=0;
+ resizeContents(0,0);
+ viewport()->repaint(TRUE);
+ }
+}
+
+int KDisplayText::IsLineFeed(char c,int type)
+{
+ switch (type)
+ {
+ case (1) : if (/*(c==0)||*/(c=='\\')||(c=='/')||(c=='@')) return 1;break;
+ case (5) : if (/*(c==0)||*/(c==10)||(c==13)) return 1;break;
+ default : if ((c==0)||(c==10)||(c==13)||(c=='\\')||(c=='/')||(c=='@')) return 1;break;
+ }
+ return 0;
+}
+
+void KDisplayText::AddEv(SpecialEvent *ev)
+{
+ if ((ev->type==1) || (ev->type==5))
+ {
+ int idx=(ev->type==1)? 0 : 1;
+ if (linked_list_[idx]==NULL)
+ {
+ linked_list_[idx]=new kdispt_line;
+ linked_list_[idx]->next=NULL;
+ linked_list_[idx]->num=1;
+ linked_list_[idx]->ev=new kdispt_ev;
+ cursor_line_[idx]=linked_list_[idx];
+ cursor_[idx]=cursor_line_[idx]->ev;
+ cursor_[idx]->spev=ev;
+ cursor_[idx]->next=NULL;
+ first_line_[idx]=linked_list_[idx];
+ first_line=first_line_[idx];
+ nlines_[idx]=1;
+ }
+ else
+ {
+ if (IsLineFeed(ev->text[0],ev->type))
+ {
+ nlines_[idx]++;
+ cursor_line_[idx]->next=new kdispt_line;
+ cursor_line_[idx]=cursor_line_[idx]->next;
+ cursor_line_[idx]->num=nlines_[idx];
+ cursor_line_[idx]->ev=new kdispt_ev;
+ cursor_line_[idx]->next=NULL;
+ cursor_[idx]=cursor_line_[idx]->ev;
+ }
+ else
+ {
+ cursor_[idx]->next=new kdispt_ev;
+ cursor_[idx]=cursor_[idx]->next;
+ }
+ cursor_[idx]->spev=ev;
+ cursor_[idx]->next=NULL;
+ }
+ }
+}
+
+void KDisplayText::calculatePositions(void)
+{
+ int typeoftextevents=1;
+ int fin=0;
+ kdispt_line *tmpl;
+ kdispt_ev *tmp;
+ int tmpx=0;
+ int tmpy=0;
+ int tmpw=0;
+ int maxx=0;
+ nlines=nlines_[(typeoftextevents==1)? 0:1];
+ int lineSpacing=qfmetr->lineSpacing();
+ int descent=qfmetr->descent();
+ while (!fin)
+ {
+ tmpl=linked_list_[(typeoftextevents==1)?0:1];
+ tmpy=lineSpacing;
+ maxx=0;
+ while (tmpl!=NULL)
+ {
+ tmp=tmpl->ev;
+ tmpx=5;
+ while (tmp!=NULL)
+ {
+ if (tmp->spev->type==typeoftextevents)
+ {
+ if (IsLineFeed(tmp->spev->text[0],typeoftextevents))
+ {
+ tmpy+=lineSpacing;
+ tmpx=5;
+
+ tmp->xpos=tmpx;
+ if (tmp->spev->text[0]!=0) tmpw=qfmetr->width(lyrics_codec->toUnicode(&tmp->spev->text[1]));
+ else tmpw=0;
+ tmp->r=qfmetr->boundingRect(lyrics_codec->toUnicode(&tmp->spev->text[1]));
+ }
+ else
+ {
+ tmp->xpos=tmpx;
+ tmpw=qfmetr->width(lyrics_codec->toUnicode(tmp->spev->text));
+ tmp->r=qfmetr->boundingRect(lyrics_codec->toUnicode(tmp->spev->text));
+ }
+ // We add 5 pixels above, below and to the right because of a
+ // problem with latest released Xft
+ tmp->r.moveBy(tmpx,tmpy-tmp->r.height()-tmp->r.y()-5);
+ tmp->r.setHeight(tmp->r.height()+descent+10);
+ tmp->r.setWidth(tmp->r.width()+5);
+ tmpx+=tmpw;
+ if (tmpx>maxx) maxx=tmpx;
+ }
+ tmp=tmp->next;
+ }
+ tmpl->ypos=tmpl->num*lineSpacing;
+ tmpy=tmpl->ypos;
+ tmpl=tmpl->next;
+ }
+ maxX[(typeoftextevents==1)?0:1]=maxx+10;
+ maxY[(typeoftextevents==1)?0:1]=
+ nlines_[(typeoftextevents==1)?0:1]*lineSpacing+descent+10;
+
+ if (typeoftextevents==1) typeoftextevents=5;
+ else fin=1;
+ }
+
+}
+
+kdispt_line *KDisplayText::searchYOffset(int y, kdispt_line *start)
+{
+kdispt_line *t=start;
+while (t!=NULL)
+ {
+// if (t->ypos+qfmetr->descent()>y) return start;
+ if (t->ypos+qfmetr->descent()+20>y) return start;
+ start=t;
+ t=t->next;
+ };
+return start;
+}
+
+void KDisplayText::drawContents(QPainter *p, int /*clipx*/, int clipy, int /*clipw*/, int cliph)
+{
+ p->setFont(*qtextfont);
+ if (linked_list==NULL) return;
+ int i=0;
+ p->setPen(yellow);
+ int colorplayed=1;
+ if (cursor==NULL) colorplayed=0; // Thus, the program doesn't change the color
+ kdispt_line *tmpl=linked_list;
+ kdispt_ev *tmp;
+
+#ifdef KDISPTEXTDEBUG
+ printf("events displayed %d\n",typeoftextevents);
+#endif
+
+ tmpl=searchYOffset(clipy,linked_list);
+ int nlinestodraw=1;
+ kdispt_line *t=tmpl;
+ while ((t!=NULL)&&(t->ypos+qfmetr->descent()<clipy+cliph))
+ {
+ nlinestodraw++;
+ t=t->next;
+ }
+
+ i=0;
+ while ((i<nlinestodraw)&&(tmpl!=NULL))
+ {
+ tmp=tmpl->ev;
+ while ((tmp!=NULL)&&(tmp->spev->type!=typeoftextevents)) tmp=tmp->next;
+ while (tmp!=NULL)
+ {
+ if ( colorplayed &&
+ // (tmp->spev->absmilliseconds>=cursor->spev->absmilliseconds))
+ (tmp->spev->id>=cursor->spev->id))
+ {
+ p->setPen(black);
+ colorplayed=0;
+ }
+
+ if (IsLineFeed(tmp->spev->text[0],tmp->spev->type))
+ p->drawText(tmp->xpos,tmpl->ypos,lyrics_codec->toUnicode(&tmp->spev->text[1]));
+ else
+ p->drawText(tmp->xpos,tmpl->ypos,lyrics_codec->toUnicode(tmp->spev->text));
+
+#ifdef DRAW_BOUNDING_RECTS
+ p->setPen(red);
+ p->drawRect(tmp->r);
+ p->setPen((colorplayed)?yellow:black);
+#endif
+ tmp=tmp->next;
+ while ((tmp!=NULL)&&(tmp->spev->type!=typeoftextevents)) tmp=tmp->next;
+ }
+ i++;
+ tmpl=tmpl->next;
+ }
+
+}
+
+
+void KDisplayText::resizeEvent(QResizeEvent *e)
+{
+ QScrollView::resizeEvent(e);
+ nvisiblelines=visibleHeight()/qfmetr->lineSpacing();
+ if ( (nlines>nvisiblelines) || (nvisiblelines==0) )
+ resizeContents(maxX[(typeoftextevents==1)?0:1],maxY[(typeoftextevents==1)?0:1]);
+ else
+ resizeContents(0,0);
+
+}
+
+void KDisplayText::CursorToHome(void)
+{
+/* KConfig *kcfg=KGlobal::instance()->config();
+ kcfg->setGroup("KMid");
+ typeoftextevents=kcfg->readNumEntry("TypeOfTextEvents",1);
+*/
+ linked_list=linked_list_[(typeoftextevents==1)? 0:1];
+ nlines=nlines_[(typeoftextevents==1)? 0:1];
+ cursor_line_[0]=linked_list_[0];
+ first_line_[0]=cursor_line_[0];
+ if (cursor_line_[0]!=NULL) cursor_[0]=cursor_line_[0]->ev;
+ cursor_line_[1]=linked_list_[1];
+ first_line_[1]=cursor_line_[1];
+ if (cursor_line_[1]!=NULL) cursor_[1]=cursor_line_[1]->ev;
+
+ if (linked_list==NULL)
+ {
+ cursor_line=NULL;
+ cursor=NULL;
+ first_line=NULL;
+ }
+ else
+ {
+ cursor_line=linked_list;
+ cursor=cursor_line->ev;
+ first_line=linked_list;
+ }
+
+ nvisiblelines=visibleHeight()/qfmetr->lineSpacing();
+ if (nlines>nvisiblelines)
+ resizeContents(maxX[(typeoftextevents==1)?0:1],maxY[(typeoftextevents==1)?0:1]);
+ else
+ resizeContents(0,0);
+
+
+ setContentsPos(0,0);
+ viewport()->repaint(true);
+}
+
+void KDisplayText::PaintIn(int type)
+{
+ bool paint=false;
+ if (type!=typeoftextevents)
+ {
+ int idx=(type==1)?0:1;
+ if (cursor_[idx]==NULL) return;
+ cursor_[idx]=cursor_[idx]->next;
+ while ((cursor_[idx]==NULL)&&(cursor_line_[idx]!=NULL))
+ {
+ cursor_line_[idx]=cursor_line_[idx]->next;
+ if (cursor_line_[idx]!=NULL)
+ {
+ cursor_[idx]=cursor_line_[idx]->ev;
+ if ((cursor_line_[idx]->num>first_line_[idx]->num+NUMPREVLINES)
+ &&(cursor_line_[idx]->num<first_line_[idx]->num+nvisiblelines+1))
+ if ((first_line_[idx]!=NULL)&&(first_line_[idx]->num+nvisiblelines<=nlines_[idx])) first_line_[idx]=first_line_[idx]->next;
+ }
+ }
+ return;
+ }
+
+ if ((cursor==NULL)||(cursor_line==NULL))
+ {
+ printf("KDispT : cursor == NULL !!!\n");
+ return;
+ }
+
+ kdispt_ev *tmp=cursor;
+ if (cursor->spev->type==typeoftextevents)
+ {
+// int x,y;
+// contentsToViewport(cursor->xpos,cursor_line->ypos,x,y);
+
+ cursor=cursor->next;
+ paint=true;
+
+ }
+ else
+ cursor=cursor->next;
+
+
+ while ((cursor==NULL)&&(cursor_line!=NULL))
+ {
+ cursor_line=cursor_line->next;
+ if (cursor_line!=NULL)
+ {
+ cursor=cursor_line->ev;
+ if ((cursor_line->ypos>contentsY()+(visibleHeight()*5/8))&&
+ (cursor_line->ypos<contentsY()+visibleHeight()+autoscrollv))
+ {
+ bool b=(autoscrollv==0);
+ autoscrollv+=qfmetr->lineSpacing();
+ if (b) startTimer(100);
+ else {
+ killTimers();
+ startTimer(100/(autoscrollv/qfmetr->lineSpacing()+1));
+ }
+ }
+// scrollBy(0,qfmetr->lineSpacing());
+ }
+ }
+ if (paint) repaintContents(tmp->r);
+}
+
+void KDisplayText::gotomsec(ulong i)
+{
+ int notidx=(typeoftextevents==1)?1:0;
+
+ if (linked_list_[notidx]!=NULL)
+ {
+ cursor_line_[notidx]=linked_list_[notidx];
+ first_line_[notidx]=cursor_line_[notidx];
+ cursor_[notidx]=cursor_line_[notidx]->ev;
+ while ((cursor_line_[notidx]!=NULL)&&(cursor_[notidx]->spev->absmilliseconds<i))
+ {
+ cursor_[notidx]=cursor_[notidx]->next;
+ while ((cursor_[notidx]==NULL)&&(cursor_line_[notidx]!=NULL))
+ {
+ cursor_line_[notidx]=cursor_line_[notidx]->next;
+ if (cursor_line_[notidx]!=NULL)
+ {
+ cursor_[notidx]=cursor_line_[notidx]->ev;
+ if ((cursor_line_[notidx]->num>first_line_[notidx]->num+NUMPREVLINES)
+ &&(cursor_line_[notidx]->num<first_line_[notidx]->num+nvisiblelines+1))
+ if ((first_line_[notidx]!=NULL)&&(first_line_[notidx]->num+nvisiblelines<=nlines_[notidx])) first_line_[notidx]=first_line_[notidx]->next;
+ }
+ }
+ }
+ }
+
+ if (linked_list!=NULL)
+ {
+ cursor_line=linked_list;
+ cursor=cursor_line->ev;
+ first_line=linked_list;
+ while ((cursor_line!=NULL)&&(cursor->spev->absmilliseconds<i))
+ {
+ cursor=cursor->next;
+ while ((cursor==NULL)&&(cursor_line!=NULL))
+ {
+ cursor_line=cursor_line->next;
+ if (cursor_line!=NULL)
+ {
+ cursor=cursor_line->ev;
+ if ((cursor_line->num>first_line->num+NUMPREVLINES)
+ &&(cursor_line->num<first_line->num+nvisiblelines+1))
+ if ((first_line!=NULL)&&(first_line->num+nvisiblelines<=nlines)) first_line=first_line->next;
+ }
+ }
+
+
+ }
+
+ killTimers();
+ autoscrollv=0;
+ setContentsPos(0,first_line->ypos);
+ viewport()->repaint();
+
+ }
+}
+
+QFont *KDisplayText::getFont(void)
+{
+ return qtextfont;
+}
+
+void KDisplayText::fontChanged(void)
+{
+ KConfig *kcfg=KGlobal::instance()->config();
+ kcfg->setGroup("KMid");
+ QFont *qtextfontdefault=new QFont(*qtextfont);
+ delete qtextfont;
+ qtextfont=new QFont(kcfg->readFontEntry("KaraokeFont",qtextfontdefault));
+ delete qtextfontdefault;
+ qfmetr=new QFontMetrics(*qtextfont);
+ calculatePositions();
+ nvisiblelines=height()/qfmetr->lineSpacing();
+ viewport()->repaint(TRUE);
+}
+
+void KDisplayText::ChangeTypeOfTextEvents(int type)
+{
+ int idxold=(typeoftextevents==1)?0:1;
+ int idxnew=(type==1)?0:1;
+ cursor_line_[idxold]=cursor_line;
+ first_line_[idxold]=first_line;
+ cursor_[idxold]=cursor;
+ linked_list=linked_list_[idxnew];
+ cursor_line=cursor_line_[idxnew];
+ first_line=first_line_[idxnew];
+ cursor=cursor_[idxnew];
+ nlines=nlines_[idxnew];
+ typeoftextevents=type;
+ if (first_line!=NULL)
+ {
+ nvisiblelines=height()/qfmetr->lineSpacing();
+ if (nlines>nvisiblelines)
+ resizeContents(maxX[(typeoftextevents==1)?0:1],maxY[(typeoftextevents==1)?0:1]);
+ else
+ resizeContents(0,0);
+
+ setContentsPos(0,first_line->ypos);
+ }
+ viewport()->repaint(TRUE);
+}
+
+int KDisplayText::ChooseTypeOfTextEvents(void)
+{
+ return (nlines_[0]>nlines_[1])? 1 : 5;
+}
+
+void KDisplayText::ScrollDown()
+{
+ scrollBy(0,2/**qfmetr->lineSpacing()*/);
+}
+
+void KDisplayText::ScrollUp()
+{
+ scrollBy(0,-2/**qfmetr->lineSpacing()*/);
+}
+
+void KDisplayText::ScrollPageDown()
+{
+ scrollBy(0,nvisiblelines*qfmetr->lineSpacing());
+}
+
+void KDisplayText::ScrollPageUp()
+{
+ scrollBy(0,-nvisiblelines*qfmetr->lineSpacing());
+}
+
+void KDisplayText::saveLyrics(FILE *fh)
+{
+ kdispt_line *Lptr=linked_list_[(typeoftextevents==1)? 0:1];
+ while (Lptr!=NULL)
+ {
+ kdispt_ev *Cptr=Lptr->ev;
+ if (Cptr!=NULL)
+ {
+ if (strcmp(Cptr->spev->text,"")!=0)
+ if (IsLineFeed(Cptr->spev->text[0],Cptr->spev->type))
+ fputs(&Cptr->spev->text[1],fh);
+ else
+ fputs(Cptr->spev->text,fh);
+ Cptr=Cptr->next;
+ }
+ while (Cptr!=NULL)
+ {
+ fputs(Cptr->spev->text,fh);
+ Cptr=Cptr->next;
+ }
+ fputs("\n",fh);
+ Lptr=Lptr->next;
+ }
+}
+
+void KDisplayText::timerEvent(QTimerEvent *e)
+{
+ int dy;
+ if (autoscrollv>0)
+ {
+ dy=2+autoscrollv/50;
+ scrollBy(0,dy);
+ autoscrollv-=dy;
+ if (autoscrollv<0)
+ {
+ killTimer(e->timerId());
+ autoscrollv=0;
+ }
+ }
+ else
+ if (autoscrollv<0)
+ {
+// dy=(autoscrollv<-2*qfmetr->lineSpacing())?-7:-2;
+ dy=-2+autoscrollv/50;
+ scrollBy(0,dy);
+ autoscrollv-=dy;
+ if (autoscrollv>0)
+ {
+ killTimer(e->timerId());
+ autoscrollv=0;
+ }
+ }
+ else
+ killTimer(e->timerId());
+
+}
+
+void KDisplayText::setLyricsEncoding(const QString &enc)
+{
+ QTextCodec *newcodec;
+ if (enc.isEmpty())
+ newcodec=KGlobal::locale()->codecForEncoding();
+ else
+ newcodec=QTextCodec::codecForName(enc.latin1());
+
+ if (newcodec!=lyrics_codec)
+ {
+ if (newcodec)
+ {
+ lyrics_codec=newcodec;
+ fontChanged();
+ }
+ }
+}
+
+#include "kdisptext.moc"