diff options
Diffstat (limited to 'tdescreensaver/kdesavers/banner.cpp')
| -rw-r--r-- | tdescreensaver/kdesavers/banner.cpp | 509 |
1 files changed, 509 insertions, 0 deletions
diff --git a/tdescreensaver/kdesavers/banner.cpp b/tdescreensaver/kdesavers/banner.cpp new file mode 100644 index 00000000..5e907c25 --- /dev/null +++ b/tdescreensaver/kdesavers/banner.cpp @@ -0,0 +1,509 @@ +//----------------------------------------------------------------------------- +// +// kbanner - Basic screen saver for KDE +// +// Copyright (c) Martin R. Jones 1996 +// +// layout management added 1998/04/19 by Mario Weilguni <[email protected]> +// clock function and color cycling added 2000/01/09 by Alexander Neundorf <[email protected]> +// 2001/03/04 Converted to use libtdescreensaver by Martin R. Jones +// 2002/04/07 Added random vertical position of text, +// changed horizontal step size to reduce jerkyness, +// text will return to right margin immediately (and not be drawn half a screen width off-screen) +// Harald H.-J. Bongartz <[email protected]> +// 2003/09/06 Converted to use KDialogBase - Nadeem Hasan <[email protected]> +#include <stdlib.h> + +#include <tqlabel.h> +#include <tqlineedit.h> +#include <tqcombobox.h> +#include <tqcheckbox.h> +#include <tqgroupbox.h> +#include <tqslider.h> +#include <tqlayout.h> +#include <tqdatetime.h> +#include <tqfontdatabase.h> +#include <tqpainter.h> + +#include <kapplication.h> +#include <krandomsequence.h> +#include <kglobal.h> +#include <klocale.h> +#include <kconfig.h> +#include <kmessagebox.h> +#include <kcolorbutton.h> +#include <kfontcombo.h> + +#include "banner.h" +#include "banner.moc" + +// libtdescreensaver interface +extern "C" +{ + KDE_EXPORT const char *kss_applicationName = "kbanner.kss"; + KDE_EXPORT const char *kss_description = I18N_NOOP( "KBanner" ); + KDE_EXPORT const char *kss_version = "2.2.0"; + + KDE_EXPORT KScreenSaver *kss_create( WId id ) + { + return new KBannerSaver( id ); + } + + KDE_EXPORT TQDialog *kss_setup() + { + return new KBannerSetup(); + } +} + +//----------------------------------------------------------------------------- + +KBannerSetup::KBannerSetup( TQWidget *parent, const char *name ) + : KDialogBase( parent, name, true, i18n( "Setup Banner Screen Saver" ), + Ok|Cancel|Help, Ok, true ), saver( 0 ), ed(0), speed( 50 ) +{ + setButtonText( Help, i18n( "A&bout" ) ); + readSettings(); + + TQWidget *main = makeMainWidget(); + + TQLabel *label; + + TQVBoxLayout *tl = new TQVBoxLayout(main, 0, spacingHint()); + TQHBoxLayout *tl1 = new TQHBoxLayout( 0, 0, spacingHint() ); + tl->addLayout(tl1); + TQVBoxLayout *tl11 = new TQVBoxLayout( 0, 0, spacingHint() ); + tl1->addLayout(tl11); + + TQGroupBox *group = new TQGroupBox( 0,Qt::Vertical, i18n("Font"), main ); + TQGridLayout *gl = new TQGridLayout(group->layout(), 6, 2, spacingHint() ); + + label = new TQLabel( i18n("Family:"), group ); + gl->addWidget(label, 1, 0); + + KFontCombo* comboFonts = new KFontCombo( TQFontDatabase().families(), group ); + comboFonts->setCurrentFont( fontFamily ); + gl->addWidget(comboFonts, 1, 1); + connect( comboFonts, TQT_SIGNAL( activated( const TQString& ) ), + TQT_SLOT( slotFamily( const TQString& ) ) ); + + label = new TQLabel( i18n("Size:"), group ); + gl->addWidget(label, 2, 0); + + comboSizes = new TQComboBox( TRUE, group ); + fillFontSizes(); + gl->addWidget(comboSizes, 2, 1); + connect( comboSizes, TQT_SIGNAL( activated( int ) ), TQT_SLOT( slotSize( int ) ) ); + connect( comboSizes, TQT_SIGNAL( textChanged( const TQString & ) ), + TQT_SLOT( slotSizeEdit( const TQString & ) ) ); + + TQCheckBox *cb = new TQCheckBox( i18n("Bold"), + group ); + cb->setChecked( bold ); + connect( cb, TQT_SIGNAL( toggled( bool ) ), TQT_SLOT( slotBold( bool ) ) ); + gl->addWidget(cb, 3, 0); + + cb = new TQCheckBox( i18n("Italic"), group ); + cb->setChecked( italic ); + gl->addWidget(cb, 3, 1); + connect( cb, TQT_SIGNAL( toggled( bool ) ), TQT_SLOT( slotItalic( bool ) ) ); + + label = new TQLabel( i18n("Color:"), group ); + gl->addWidget(label, 4, 0); + + colorPush = new KColorButton( fontColor, group ); + gl->addWidget(colorPush, 4, 1); + connect( colorPush, TQT_SIGNAL( changed(const TQColor &) ), + TQT_SLOT( slotColor(const TQColor &) ) ); + + TQCheckBox *cyclingColorCb=new TQCheckBox(i18n("Cycling color"),group); + cyclingColorCb->setMinimumSize(cyclingColorCb->sizeHint()); + gl->addMultiCellWidget(cyclingColorCb,5,5,0,1); + connect(cyclingColorCb,TQT_SIGNAL(toggled(bool)),this,TQT_SLOT(slotCyclingColor(bool))); + cyclingColorCb->setChecked(cyclingColor); + + preview = new TQWidget( main ); + preview->setFixedSize( 220, 170 ); + preview->setBackgroundColor( black ); + preview->show(); // otherwise saver does not get correct size + saver = new KBannerSaver( preview->winId() ); + tl1->addWidget(preview); + + tl11->addWidget(group); + + label = new TQLabel( i18n("Speed:"), main ); + tl11->addStretch(1); + tl11->addWidget(label); + + TQSlider *sb = new TQSlider(0, 100, 10, speed, Qt::Horizontal, main ); + sb->setMinimumWidth( 180); + sb->setFixedHeight(20); + sb->setTickmarks(TQSlider::Below); + sb->setTickInterval(10); + tl11->addWidget(sb); + connect( sb, TQT_SIGNAL( valueChanged( int ) ), TQT_SLOT( slotSpeed( int ) ) ); + + TQHBoxLayout *tl2 = new TQHBoxLayout; + tl->addLayout(tl2); + + label = new TQLabel( i18n("Message:"), main ); + tl2->addWidget(label); + + ed = new TQLineEdit( main ); + tl2->addWidget(ed); + ed->setText( message ); + connect( ed, TQT_SIGNAL( textChanged( const TQString & ) ), + TQT_SLOT( slotMessage( const TQString & ) ) ); + + TQCheckBox *timeCb=new TQCheckBox( i18n("Show current time"), main); + timeCb->setFixedSize(timeCb->sizeHint()); + tl->addWidget(timeCb,0,TQt::AlignLeft); + connect(timeCb,TQT_SIGNAL(toggled(bool)),this,TQT_SLOT(slotTimeToggled(bool))); + timeCb->setChecked(showTime); + + tl->addStretch(); +} + +// read settings from config file +void KBannerSetup::readSettings() +{ + TDEConfig *config = TDEGlobal::config(); + config->setGroup( "Settings" ); + + speed=config->readNumEntry("Speed",50); +/* if ( speed > 100 ) + speed = 100; + else if ( speed < 50 ) + speed = 50;*/ + + message=config->readEntry("Message","KDE"); + showTime=config->readBoolEntry("ShowTime",FALSE); + fontFamily=config->readEntry("FontFamily",(TQApplication::font()).family()); + fontSize=config->readNumEntry("FontSize",48); + fontColor.setNamedColor(config->readEntry("FontColor","red")); + cyclingColor=config->readBoolEntry("CyclingColor",FALSE); + bold=config->readBoolEntry("FontBold",FALSE); + italic=config->readBoolEntry("FontItalic",FALSE); +} + +void KBannerSetup::fillFontSizes() +{ + bool block = comboSizes->signalsBlocked(); + comboSizes->blockSignals( true ); + comboSizes->clear(); + int i = 0; + sizes = TQFontDatabase().pointSizes( fontFamily ); + sizes << 96 << 128 << 156 << 0; + int current = 0; + while ( sizes[i] ) + { + TQString num; + num.setNum( sizes[i] ); + comboSizes->insertItem( num, i ); + if ( fontSize == sizes[i] ) // fontsize equals one of the defined ones + { + current = i; + comboSizes->setCurrentItem( current ); + slotSize( current ); + } + i++; + } + if ( current == 0 ) // fontsize seems to be entered by hand + { + TQString fsize; + fsize.setNum( fontSize ); + comboSizes->setEditText(fsize); + slotSizeEdit( fsize ); + } + comboSizes->blockSignals( block ); +} + +void KBannerSetup::slotFamily( const TQString& fam ) +{ + fontFamily = fam; + fillFontSizes(); // different font, different sizes + if ( saver ) + saver->setFont( fontFamily, fontSize, fontColor, bold, italic ); +} + +void KBannerSetup::slotSize( int indx ) +{ + fontSize = sizes[indx]; + if ( saver ) + saver->setFont( fontFamily, fontSize, fontColor, bold, italic ); +} + +void KBannerSetup::slotSizeEdit( const TQString& fs ) +{ + bool ok; + fontSize = fs.toInt( &ok, 10 ); + if ( ok ) + if ( saver ) + saver->setFont( fontFamily, fontSize, fontColor, bold, italic ); +} + +void KBannerSetup::slotColor( const TQColor &col ) +{ + fontColor = col; + if ( saver ) + saver->setColor(fontColor); +} + +void KBannerSetup::slotCyclingColor(bool on) +{ + colorPush->setEnabled(!on); + cyclingColor=on; + + if ( saver ) + { + saver->setCyclingColor( on ); + if ( !on ) + saver->setColor( fontColor ); + } +} + +void KBannerSetup::slotBold( bool state ) +{ + bold = state; + if ( saver ) + saver->setFont( fontFamily, fontSize, fontColor, bold, italic ); +} + +void KBannerSetup::slotItalic( bool state ) +{ + italic = state; + if ( saver ) + saver->setFont( fontFamily, fontSize, fontColor, bold, italic ); +} + +void KBannerSetup::slotSpeed( int num ) +{ + speed = num; + if ( saver ) + saver->setSpeed( speed ); +} + +void KBannerSetup::slotMessage( const TQString &msg ) +{ + message = msg; + if ( saver ) + saver->setMessage( message ); +} + +void KBannerSetup::slotTimeToggled( bool on ) +{ + ed->setEnabled(!on); + showTime=on; + if (saver) + { + if (showTime) + saver->setTimeDisplay(); + else + { + message=ed->text(); + saver->setMessage(message); + }; + }; +} + +// Ok pressed - save settings and exit +void KBannerSetup::slotOk() +{ + TDEConfig *config = TDEGlobal::config(); + config->setGroup( "Settings" ); + + config->writeEntry( "Speed", speed ); + config->writeEntry( "Message", message ); + config->writeEntry( "ShowTime", showTime ); + config->writeEntry( "FontFamily", fontFamily ); + + TQString fsize; + if (fontSize == 0) // an non-number was entered in the font size combo + { + fontSize = 48; + } + fsize.setNum( fontSize ); + config->writeEntry( "FontSize", fsize ); + + TQString colName; + colName.sprintf( "#%02x%02x%02x", fontColor.red(), fontColor.green(), + fontColor.blue() ); + config->writeEntry( "FontColor", colName ); + config->writeEntry( "CyclingColor", cyclingColor ); + config->writeEntry( "FontBold", bold ); + config->writeEntry( "FontItalic", italic ); + + config->sync(); + + accept(); +} + +void KBannerSetup::slotHelp() +{ + KMessageBox::about(this, + i18n("Banner Version 2.2.1\n\nWritten by Martin R. Jones 1996\[email protected]\nExtended by Alexander Neundorf 2000\[email protected]\n")); +} + +//----------------------------------------------------------------------------- + +KBannerSaver::KBannerSaver( WId id ) : KScreenSaver( id ) +{ + krnd = new KRandomSequence(); + readSettings(); + initialize(); + colorContext = TQColor::enterAllocContext(); + needBlank = TRUE; + timer.start( speed ); + connect( &timer, TQT_SIGNAL( timeout() ), TQT_SLOT( slotTimeout() ) ); +} + +KBannerSaver::~KBannerSaver() +{ + timer.stop(); + TQColor::leaveAllocContext(); + TQColor::destroyAllocContext( colorContext ); + delete krnd; +} + +void KBannerSaver::setSpeed( int spd ) +{ + timer.stop(); + int inv = 100 - spd; + speed = 1 + ((inv * inv) / 100); + timer.start( speed ); +} + +void KBannerSaver::setFont( const TQString& family, int size, const TQColor &color, + bool b, bool i ) +{ + fontFamily = family; + fontSize = size; + fontColor = color; + bold = b; + italic = i; + + initialize(); +} + +void KBannerSaver::setColor(TQColor &color) +{ + fontColor = color; + cyclingColor = FALSE; + needUpdate = TRUE; +} + +void KBannerSaver::setCyclingColor( bool on ) +{ + cyclingColor = on; + needUpdate = TRUE; +} + +void KBannerSaver::setMessage( const TQString &msg ) +{ + showTime = FALSE; + message = msg; + pixmapSize = TQSize(); + needBlank = TRUE; +} + +void KBannerSaver::setTimeDisplay() +{ + showTime = TRUE; + pixmapSize = TQSize(); + needBlank = TRUE; +} + +// read settings from config file +void KBannerSaver::readSettings() +{ + TDEConfig *config = TDEGlobal::config(); + config->setGroup( "Settings" ); + + setSpeed( config->readNumEntry("Speed",50) ); + + message=config->readEntry("Message","KDE"); + + showTime=config->readBoolEntry("ShowTime",FALSE); + + fontFamily=config->readEntry("FontFamily",(TQApplication::font()).family()); + + fontSize=config->readNumEntry("FontSize",48); + + fontColor.setNamedColor(config->readEntry("FontColor","red")); + + cyclingColor=config->readBoolEntry("CyclingColor",FALSE); + + bold=config->readBoolEntry("FontBold",FALSE); + italic=config->readBoolEntry("FontItalic",FALSE); + + if ( cyclingColor ) + { + currentHue=0; + fontColor.setHsv(0,SATURATION,VALUE); + } +} + +// initialize font +void KBannerSaver::initialize() +{ + fsize = fontSize * height() / TQApplication::desktop()->height(); + + font = TQFont( fontFamily, fsize, bold ? TQFont::Bold : TQFont::Normal, italic ); + + pixmapSize = TQSize(); + needBlank = TRUE; + + xpos = width(); + ypos = fsize + (int) ((double)(height()-fsize)*krnd->getDouble()); + step = 2 * width() / TQApplication::desktop()->width(); // 6 -> 2 -hhjb- + if ( step == 0 ) + step = 1; +} + +// erase old text and draw in new position +void KBannerSaver::slotTimeout() +{ + if (cyclingColor) + { + int hueStep = speed/10; + currentHue=(currentHue+hueStep)%360; + fontColor.setHsv(currentHue,SATURATION,VALUE); + } + if (showTime) + { + TQString new_message = TDEGlobal::locale()->formatTime(TQTime::currentTime(), true); + if( new_message != message ) + needUpdate = TRUE; + message = new_message; + } + if ( !pixmapSize.isValid() || cyclingColor || needUpdate || needBlank ) + { + TQRect rect = TQFontMetrics( font ).boundingRect( message ); + rect.setWidth( rect.width() + step ); + if ( rect.width() > pixmapSize.width() ) + pixmapSize.setWidth( rect.width() ); + if ( rect.height() > pixmapSize.height() ) + pixmapSize.setHeight( rect.height() ); + pixmap = TQPixmap( pixmapSize ); + pixmap.fill( black ); + TQPainter p( &pixmap ); + p.setFont( font ); + p.setPen( fontColor ); + p.drawText( -rect.x(), -rect.y(), message ); + needUpdate = FALSE; + } + xpos -= step; + if ( xpos < -pixmapSize.width() ) { + TQPainter p( this ); + p.fillRect( xpos + step, ypos, pixmapSize.width(), pixmapSize.height(), black ); + xpos = width(); + ypos = fsize + (int) ((double)(height()-2.0*fsize)*krnd->getDouble()); + } + + if ( needBlank ) + { + setBackgroundColor( black ); + erase(); + needBlank = FALSE; + } + bitBlt( this, xpos, ypos, &pixmap, 0, 0, pixmapSize.width(), pixmapSize.height()); +} |