diff options
Diffstat (limited to 'tdescreensaver/kdesavers/lines.cpp')
| -rw-r--r-- | tdescreensaver/kdesavers/lines.cpp | 401 |
1 files changed, 401 insertions, 0 deletions
diff --git a/tdescreensaver/kdesavers/lines.cpp b/tdescreensaver/kdesavers/lines.cpp new file mode 100644 index 00000000..a2692217 --- /dev/null +++ b/tdescreensaver/kdesavers/lines.cpp @@ -0,0 +1,401 @@ +//----------------------------------------------------------------------------- +// +// klines 0.1.1 - Basic screen saver for KDE +// by Dirk Staneker 1997 +// based on kpolygon from Martin R. Jones 1996 +// mailto:[email protected] +// +// layout management added 1998/04/19 by Mario Weilguni <[email protected]> +// 2001/03/04 Converted to libtdescreensaver by Martin R. Jones + +#include <config.h> +#include <stdlib.h> +#include <time.h> +#include <tqcolor.h> +#include <tqlabel.h> +#include <tqslider.h> +#include <kconfig.h> +#include <kapplication.h> +#include <kmessagebox.h> +#include <kcolorbutton.h> + +#include "kcolordialog.h" +#include "lines.h" +#include "lines.moc" + +#include <tqlayout.h> +#include <klocale.h> +#include <kglobal.h> +#include <tqpainter.h> + +#define MAXLENGTH 256 + +// libtdescreensaver interface +extern "C" +{ + KDE_EXPORT const char *kss_applicationName = "klines.kss"; + KDE_EXPORT const char *kss_description = I18N_NOOP( "KLines" ); + KDE_EXPORT const char *kss_version = "2.2.0"; + + KDE_EXPORT KScreenSaver *kss_create( WId id ) + { + return new kLinesSaver( id ); + } + + KDE_EXPORT TQDialog *kss_setup() + { + return new kLinesSetup(); + } +} + +// Methods of the Lines-class +Lines::Lines(int x){ + uint i; + numLn=x; + offx1=12; + offy1=16; + offx2=9; + offy2=10; + start=new Ln; + end=start; + for(i=1; i<numLn; i++){ + end->next=new Ln; + end=end->next; + } + end->next=start; + akt=start; +} + +Lines::~Lines(){ + uint i; + for(i=0; i<numLn; i++){ + end=start->next; + delete start; + start=end; + } +} + +inline void Lines::reset(){ akt=start; } + +inline void Lines::getKoord(int& a, int& b, int& c, int& d){ + a=akt->x1; b=akt->y1; + c=akt->x2; d=akt->y2; + akt=akt->next; +} + +inline void Lines::setKoord(const int& a, const int& b, const int& c, const int& d){ + akt->x1=a; akt->y1=b; + akt->x2=c; akt->y2=d; +} + +inline void Lines::next(void){ akt=akt->next; } + +void Lines::turn(const int& w, const int& h){ + start->x1=end->x1+offx1; + start->y1=end->y1+offy1; + start->x2=end->x2+offx2; + start->y2=end->y2+offy2; + if(start->x1>=w) offx1=-8; + if(start->x1<=0) offx1=7; + if(start->y1>=h) offy1=-11; + if(start->y1<=0) offy1=13; + if(start->x2>=w) offx2=-17; + if(start->x2<=0) offx2=15; + if(start->y2>=h) offy2=-10; + if(start->y2<=0) offy2=13; + end->next=start; + start=start->next; + end=end->next; +} + + +//----------------------------------------------------------------------------- +// dialog to setup screen saver parameters +// +kLinesSetup::kLinesSetup(TQWidget *parent, const char *name) + : KDialogBase(parent, name, true, i18n( "Setup Lines Screen Saver" ), + Ok|Cancel|Help, Ok, true ), saver( 0 ), length( 10 ), speed( 50 ) +{ + readSettings(); + + setButtonText( Help, i18n( "A&bout" ) ); + TQWidget *main = makeMainWidget(); + + TQHBoxLayout *tl = new TQHBoxLayout(main, 0, spacingHint()); + TQVBoxLayout *tl1 = new TQVBoxLayout; + tl->addLayout(tl1); + + TQLabel *label=new TQLabel(i18n("Length:"), main); + tl1->addWidget(label); + + TQSlider *sb= new TQSlider(1, MAXLENGTH+1, 16, length, Qt::Horizontal, + main); + sb->setMinimumSize(120, 20); + sb->setTickmarks(TQSlider::Below); + sb->setTickInterval(32); + connect(sb, TQT_SIGNAL(valueChanged(int)), TQT_SLOT(slotLength(int))); + tl1->addWidget(sb); + + label=new TQLabel(i18n("Speed:"), main); + tl1->addWidget(label); + + sb = new TQSlider(0, 100, 10, speed, Qt::Horizontal, main); + sb->setMinimumSize(120, 20); + sb->setTickmarks(TQSlider::Below); + sb->setTickInterval(10); + connect( sb, TQT_SIGNAL( valueChanged( int ) ), TQT_SLOT( slotSpeed( int ) ) ); + tl1->addWidget(sb); + + label=new TQLabel(i18n("Beginning:"), main); + tl1->addWidget(label); + + colorPush0=new KColorButton(colstart, main); + connect(colorPush0, TQT_SIGNAL(changed(const TQColor &)), + TQT_SLOT(slotColstart(const TQColor &))); + tl1->addWidget(colorPush0); + + label=new TQLabel(i18n("Middle:"), main); + tl1->addWidget(label); + + colorPush1=new KColorButton(colmid, main); + connect(colorPush1, TQT_SIGNAL(changed(const TQColor &)), + TQT_SLOT(slotColmid(const TQColor &))); + tl1->addWidget(colorPush1); + + label=new TQLabel(i18n("End:"), main); + tl1->addWidget(label); + + colorPush2=new KColorButton(colend, main); + connect(colorPush2, TQT_SIGNAL(changed(const TQColor &)), + TQT_SLOT(slotColend(const TQColor &))); + tl1->addWidget(colorPush2); + tl1->addStretch(); + + preview = new TQWidget( main ); + preview->setFixedSize( 220, 170 ); + preview->setBackgroundColor( black ); + preview->show(); // otherwise saver does not get correct size + saver=new kLinesSaver(preview->winId()); + tl->addWidget(preview); +} + +kLinesSetup::~kLinesSetup() +{ + delete saver; +} + +// read settings from config file +void kLinesSetup::readSettings(){ + TDEConfig *config = TDEGlobal::config(); + config->setGroup( "Settings" ); + + TQString str; + + length = config->readNumEntry("Length", length); + if(length>MAXLENGTH) length=MAXLENGTH; + else if(length<1) length=1; + + speed = config->readNumEntry("Speed", speed); + if(speed>100) speed=100; + else if(speed<50) speed=50; + + str=config->readEntry("StartColor"); + if(!str.isNull()) colstart.setNamedColor(str); + else colstart=white; + str=config->readEntry("MidColor"); + if(!str.isNull()) colmid.setNamedColor(str); + else colmid=blue; + str=config->readEntry("EndColor"); + if(!str.isNull()) colend.setNamedColor(str); + else colend=black; +} + +void kLinesSetup::slotLength(int len){ + length=len; + if(saver) saver->setLines(length); +} + +void kLinesSetup::slotSpeed(int num){ + speed=num; + if(saver) saver->setSpeed(speed); +} + +void kLinesSetup::slotColstart(const TQColor &col){ + colstart = col; + if(saver) saver->setColor(colstart, colmid, colend); +} + +void kLinesSetup::slotColmid(const TQColor &col){ + colmid = col; + if(saver) saver->setColor(colstart, colmid, colend); +} + +void kLinesSetup::slotColend(const TQColor &col){ + colend = col; + if(saver) saver->setColor(colstart, colmid, colend); +} + +void kLinesSetup::slotHelp(){ + KMessageBox::about(this, + i18n("Lines Version 2.2.0\n\n" + "Written by Dirk Staneker 1997\n" + "[email protected]")); +} + +// Ok pressed - save settings and exit +void kLinesSetup::slotOk(){ + TDEConfig *config = TDEGlobal::config(); + config->setGroup("Settings"); + + TQString slength; + slength.setNum(length); + config->writeEntry("Length", slength); + + TQString sspeed; + sspeed.setNum( speed ); + config->writeEntry( "Speed", sspeed ); + + TQString colName0, colName1, colName2; + colName0.sprintf("#%02x%02x%02x", colstart.red(), + colstart.green(), colstart.blue() ); + config->writeEntry( "StartColor", colName0 ); + + colName1.sprintf("#%02x%02x%02x", colmid.red(), + colmid.green(), colmid.blue() ); + config->writeEntry( "MidColor", colName1 ); + + colName2.sprintf("#%02x%02x%02x", colend.red(), + colend.green(), colend.blue() ); + config->writeEntry( "EndColor", colName2 ); + + config->sync(); + accept(); +} + +//----------------------------------------------------------------------------- + + +kLinesSaver::kLinesSaver( WId id ) : KScreenSaver( id ){ + readSettings(); + lines=new Lines(numLines); + colorContext=TQColor::enterAllocContext(); + blank(); + initialiseColor(); + initialiseLines(); + timer.start(speed); + connect(&timer, TQT_SIGNAL(timeout()), TQT_SLOT(slotTimeout())); +} + +kLinesSaver::~kLinesSaver(){ + timer.stop(); + TQColor::leaveAllocContext(); + TQColor::destroyAllocContext(colorContext); + delete lines; +} + +// set lines properties +void kLinesSaver::setLines(int len){ + timer.stop(); + numLines=len; + initialiseLines(); + initialiseColor(); + blank(); + timer.start(speed); +} + +// set the speed +void kLinesSaver::setSpeed(int spd){ + timer.stop(); + speed=100-spd; + timer.start(speed); +} + +void kLinesSaver::setColor(const TQColor& cs, const TQColor& cm, const TQColor& ce){ + colstart=cs; + colmid=cm; + colend=ce; + initialiseColor(); +} + +// read configuration settings from config file +void kLinesSaver::readSettings(){ + TDEConfig *config=TDEGlobal::config(); + config->setGroup("Settings"); + + numLines=config->readNumEntry("Length", 10); + speed = 100- config->readNumEntry("Speed", 50); + if(numLines>MAXLENGTH) numLines=MAXLENGTH; + else if(numLines<1) numLines = 1; + + colstart=config->readColorEntry("StartColor", &white); + colmid=config->readColorEntry("MidColor", &blue); + colend=config->readColorEntry("EndColor", &black); +} + +// draw next lines and erase tail +void kLinesSaver::slotTimeout(){ + uint i; + int x1,y1,x2,y2; + int col=0; + + lines->reset(); + TQPainter p( this ); + p.setPen( black ); + + for(i=0; i<numLines; i++){ + lines->getKoord(x1,y1,x2,y2); + p.drawLine( x1, y1, x2, y2 ); + p.setPen( colors[col] ); + col=(int)(i*colscale); + if(col>63) col=0; + } + lines->turn(width(), height()); +} + +void kLinesSaver::blank(){ + setBackgroundColor( black ); + erase(); +} + +// initialise the lines +void kLinesSaver::initialiseLines(){ + uint i; + int x1,y1,x2,y2; + delete lines; + lines=new Lines(numLines); + lines->reset(); + x1=rnd.getLong(width()); + y1=rnd.getLong(height()); + x2=rnd.getLong(width()); + y2=rnd.getLong(height()); + for(i=0; i<numLines; i++){ + lines->setKoord(x1,y1,x2,y2); + lines->next(); + } +} + +// create a color table of 64 colors +void kLinesSaver::initialiseColor(){ + int i; + double mr, mg, mb; + double cr, cg, cb; + mr=(double)(colmid.red()-colstart.red())/32; + mg=(double)(colmid.green()-colstart.green())/32; + mb=(double)(colmid.blue()-colstart.blue())/32; + cr=colstart.red(); + cg=colstart.green(); + cb=colstart.blue(); + for(i=0; i<32; i++){ + colors[63-i].setRgb((int)(mr*i+cr), (int)(mg*i+cg), (int)(mb*i+cb)); + } + mr=(double)(colend.red()-colmid.red())/32; + mg=(double)(colend.green()-colmid.green())/32; + mb=(double)(colend.blue()-colmid.blue())/32; + cr=colmid.red(); + cg=colmid.green(); + cb=colmid.blue(); + for(i=0; i<32; i++){ + colors[31-1].setRgb((int)(mr*i+cr), (int)(mg*i+cg), (int)(mb*i+cb)); + } + colscale=64.0/(double)numLines; +} |