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Diffstat (limited to 'kmid/kdisptext.cpp')
| -rw-r--r-- | kmid/kdisptext.cpp | 640 |
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" |