diff options
Diffstat (limited to 'tdescreensaver/kdesavers/kclock.cpp')
| -rw-r--r-- | tdescreensaver/kdesavers/kclock.cpp | 588 |
1 files changed, 588 insertions, 0 deletions
diff --git a/tdescreensaver/kdesavers/kclock.cpp b/tdescreensaver/kdesavers/kclock.cpp new file mode 100644 index 00000000..5201f222 --- /dev/null +++ b/tdescreensaver/kdesavers/kclock.cpp @@ -0,0 +1,588 @@ +// $Id$ +// +// kclock - Clock screen saver for KDE +// Copyright (c) 2003 Melchior FRANZ +// +// License: GPL v2 +// Author: Melchior FRANZ <[email protected]> +// Dependencies: libart_lgpl_2 http://www.levien.com/libart/ +// +#include <stdlib.h> +#include <string.h> + +#include <tqcheckbox.h> +#include <tqcolor.h> +#include <tqdatetime.h> +#include <tqgroupbox.h> +#include <tqhbox.h> +#include <tqimage.h> +#include <tqlabel.h> +#include <tqlayout.h> +#include <tqpainter.h> +#include <tqslider.h> + +#include <kapplication.h> +#include <kcolorbutton.h> +#include <kconfig.h> +#include <kglobal.h> +#include <klocale.h> +#include <kmessagebox.h> + +#include <libart_lgpl/art_affine.h> +#include <libart_lgpl/art_misc.h> +#include <libart_lgpl/art_rgb.h> +#include <libart_lgpl/art_rgb_svp.h> +#include <libart_lgpl/art_svp_vpath.h> +#include <libart_lgpl/art_svp_vpath_stroke.h> +#include <libart_lgpl/art_vpath.h> + +#include "kclock.h" +#include "kclock.moc" + + +const int COLOR_BUTTON_WIDTH = 80; +const int TIMER_INTERVALL = 100; +const int MAX_CLOCK_SIZE = 10; +const int DEFAULT_CLOCK_SIZE = 3; +const bool DEFAULT_KEEP_CENTERED = false; + + + + +extern "C" { + KDE_EXPORT const char *kss_applicationName = "kclock.kss"; + KDE_EXPORT const char *kss_description = I18N_NOOP("Clock"); + KDE_EXPORT const char *kss_version = "1.0"; + + KDE_EXPORT KScreenSaver *kss_create(WId id) { + return new KClockSaver(id); + } + + KDE_EXPORT TQDialog *kss_setup() { + return new KClockSetup(); + } +} + + + + +//----------------------------------------------------------------------------- + +KClockSetup::KClockSetup(TQWidget *parent, const char *name) + : KDialogBase(parent, name, true, i18n( "Setup Clock Screen Saver" ), + Ok|Cancel|Help, Ok, true), + m_saver(0) +{ + readSettings(); + + setButtonText( Help, i18n( "A&bout" ) ); + TQWidget *main = makeMainWidget(); + + TQVBoxLayout *top = new TQVBoxLayout(main, 0, spacingHint()); + + TQHBoxLayout *hbox = new TQHBoxLayout; + top->addLayout( hbox ); + + TQGroupBox *colgroup = new TQGroupBox(i18n("Colors"), main); + colgroup->setColumnLayout( 0,Qt::Horizontal ); + TQGridLayout *grid = new TQGridLayout( colgroup->layout(), + 5, 2, spacingHint() ); + + TQLabel *label = new TQLabel(i18n("&Hour-hand:"), colgroup); + KColorButton *colorButton = new KColorButton(m_hourColor, colgroup); + colorButton->setFixedWidth(COLOR_BUTTON_WIDTH); + label->setBuddy(colorButton); + connect(colorButton, TQT_SIGNAL(changed(const TQColor &)), + TQT_SLOT(slotHourColor(const TQColor &))); + grid->addWidget( label, 1, 1 ); + grid->addWidget( colorButton, 1, 2 ); + + label = new TQLabel(i18n("&Minute-hand:"), colgroup); + colorButton = new KColorButton(m_minColor, colgroup); + colorButton->setFixedWidth(COLOR_BUTTON_WIDTH); + label->setBuddy(colorButton); + connect(colorButton, TQT_SIGNAL(changed(const TQColor &)), + TQT_SLOT(slotMinColor(const TQColor &))); + grid->addWidget( label, 2, 1 ); + grid->addWidget( colorButton, 2, 2 ); + + label = new TQLabel(i18n("&Second-hand:"), colgroup); + colorButton = new KColorButton(m_secColor, colgroup); + colorButton->setFixedWidth(COLOR_BUTTON_WIDTH); + label->setBuddy(colorButton); + connect(colorButton, TQT_SIGNAL(changed(const TQColor &)), + TQT_SLOT(slotSecColor(const TQColor &))); + grid->addWidget( label, 3, 1 ); + grid->addWidget( colorButton, 3, 2 ); + + label = new TQLabel(i18n("Scal&e:"), colgroup); + colorButton = new KColorButton(m_scaleColor, colgroup); + colorButton->setFixedWidth(COLOR_BUTTON_WIDTH); + label->setBuddy(colorButton); + connect(colorButton, TQT_SIGNAL(changed(const TQColor &)), + TQT_SLOT(slotScaleColor(const TQColor &))); + grid->addWidget( label, 4, 1 ); + grid->addWidget( colorButton, 4, 2 ); + + label = new TQLabel(i18n("&Background:"), colgroup); + colorButton = new KColorButton(m_bgndColor, colgroup); + colorButton->setFixedWidth(COLOR_BUTTON_WIDTH); + label->setBuddy(colorButton); + connect(colorButton, TQT_SIGNAL(changed(const TQColor &)), + TQT_SLOT(slotBgndColor(const TQColor &))); + grid->addWidget( label, 5, 1 ); + grid->addWidget( colorButton, 5, 2 ); + + hbox->addWidget(colgroup); + + TQWidget *m_preview = new TQWidget(main); + m_preview->setFixedSize(220, 165); + m_preview->show(); + m_saver = new KClockSaver(m_preview->winId()); + hbox->addWidget(m_preview); + + label = new TQLabel( i18n( "Si&ze:" ), main ); + top->addWidget( label ); + TQSlider *qs = new TQSlider(0, MAX_CLOCK_SIZE, 1, m_size,Qt::Horizontal, main); + label->setBuddy( qs ); + qs->setTickInterval(1); + qs->setTickmarks(TQSlider::Below); + connect(qs, TQT_SIGNAL(valueChanged(int)), this, TQT_SLOT(slotSliderMoved(int))); + top->addWidget( qs ); + + bool rtl = kapp->reverseLayout(); + TQHBox *qsscale = new TQHBox(main); + label = new TQLabel(i18n("Small"), qsscale); + label->setAlignment(rtl ? AlignRight : AlignLeft); + label = new TQLabel(i18n("Medium"), qsscale); + label->setAlignment(AlignHCenter); + label = new TQLabel(i18n("Big"), qsscale); + label->setAlignment(rtl ? AlignLeft : AlignRight); + top->addWidget(qsscale); + + TQCheckBox *keepCentered = new TQCheckBox(i18n("&Keep clock centered"), main); + keepCentered->setChecked(m_keepCentered); + connect(keepCentered, TQT_SIGNAL(stateChanged(int)), TQT_SLOT(slotKeepCenteredChanged(int))); + top->addWidget(keepCentered); + top->addStretch(); +} + +KClockSetup::~KClockSetup() +{ + delete m_saver; +} + +void KClockSetup::readSettings() +{ + TDEConfig *config = TDEGlobal::config(); + + config->setGroup("Settings"); + m_keepCentered = config->readBoolEntry("KeepCentered", DEFAULT_KEEP_CENTERED); + m_size = config->readUnsignedNumEntry("Size", DEFAULT_CLOCK_SIZE); + if (m_size > MAX_CLOCK_SIZE) + m_size = MAX_CLOCK_SIZE; + + config->setGroup("Colors"); + TQColor c = TQt::black; + m_bgndColor = config->readColorEntry("Background", &c); + + c = TQt::white; + m_scaleColor = config->readColorEntry("Scale", &c); + m_hourColor = config->readColorEntry("HourHand", &c); + m_minColor = config->readColorEntry("MinuteHand", &c); + + c = TQt::red; + m_secColor = config->readColorEntry("SecondHand", &c); + + if (m_saver) { + m_saver->setBgndColor(m_bgndColor); + m_saver->setScaleColor(m_scaleColor); + m_saver->setHourColor(m_hourColor); + m_saver->setMinColor(m_minColor); + m_saver->setSecColor(m_secColor); + } +} + + +void KClockSetup::slotOk() +{ + TDEConfig *config = TDEGlobal::config(); + config->setGroup("Settings"); + config->writeEntry("Size", m_size); + config->writeEntry("KeepCentered", m_keepCentered); + + config->setGroup("Colors"); + config->writeEntry("Background", m_bgndColor); + config->writeEntry("Scale", m_scaleColor); + config->writeEntry("HourHand", m_hourColor); + config->writeEntry("MinuteHand", m_minColor); + config->writeEntry("SecondHand", m_secColor); + config->sync(); + accept(); +} + + +void KClockSetup::slotHelp() +{ + KMessageBox::about(this, "<qt>" + i18n( + "Clock Screen Saver<br>" + "Version 1.0<br>" + "<nobr>Melchior FRANZ (c) 2003</nobr>") + + "<br><a href=\"mailto:[email protected]\">[email protected]</a>" + "</qt>", TQString(), KMessageBox::AllowLink); +} + + +void KClockSetup::slotBgndColor(const TQColor &color) +{ + m_bgndColor = color; + if (m_saver) + m_saver->setBgndColor(m_bgndColor); +} + + +void KClockSetup::slotScaleColor(const TQColor &color) +{ + m_scaleColor = color; + if (m_saver) + m_saver->setScaleColor(m_scaleColor); +} + + +void KClockSetup::slotHourColor(const TQColor &color) +{ + m_hourColor = color; + if (m_saver) + m_saver->setHourColor(m_hourColor); +} + + +void KClockSetup::slotMinColor(const TQColor &color) +{ + m_minColor = color; + if (m_saver) + m_saver->setMinColor(m_minColor); +} + + +void KClockSetup::slotSecColor(const TQColor &color) +{ + m_secColor = color; + if (m_saver) + m_saver->setSecColor(m_secColor); +} + + +void KClockSetup::slotSliderMoved(int v) +{ + if (m_saver) + m_saver->restart(m_size = v); +} + + +void KClockSetup::slotKeepCenteredChanged(int c) +{ + if (m_saver) + m_saver->setKeepCentered(m_keepCentered = c); +} + + + + + +//----------------------------------------------------------------------------- + +KClockPainter::KClockPainter(int width, int height) + : m_width(width), + m_height(height) +{ + m_buf = new TQ_UINT8[m_width * m_height * 3]; + // build Cartesian coordinate system ranging from -1000 to +1000; + // points with positive x and y are in the top right quarter + m_matrix[0] = m_width / 2000.0; + m_matrix[1] = 0; + m_matrix[2] = 0; + m_matrix[3] = m_height / -2000.0; + m_matrix[4] = m_width / 2.0; + m_matrix[5] = m_height / 2.0; +} + + +KClockPainter::~KClockPainter() +{ + delete[] m_buf; +} + + +void KClockPainter::copy(KClockPainter *p) +{ + memcpy(m_buf, p->image(), m_width * m_height * 3); +} + + +void KClockPainter::drawToImage(TQImage *q, int xoffs = 0, int yoffs = 0) +{ + unsigned char *src = (unsigned char *)image(); + for (int y = 0; y < m_height; y++) { + TQRgb *dest = reinterpret_cast<TQRgb *>(q->scanLine(y + yoffs)) + xoffs; + for (int x = 0; x < m_width; x++, src += 3) + *dest++ = tqRgba(src[0], src[1], src[2], 255); + } +} + + +void KClockPainter::setColor(const TQColor &c) +{ + m_color = (c.red() << 24) | (c.green() << 16) | (c.blue() << 8) | 255; +} + + +void KClockPainter::setShadowColor(const TQColor &c) +{ + m_shadow = (c.red() << 24) | (c.green() << 16) | (c.blue() << 8) | 255; +} + + +void KClockPainter::fill(const TQColor &c) +{ + art_rgb_fill_run(m_buf, c.red(), c.green(), c.blue(), m_width * m_height); +} + + +void KClockPainter::drawRadial(double alpha, double r0, double r1, double width) +{ + ArtVpath *vx, *v = art_new(ArtVpath, 3); + v[0].code = ART_MOVETO_OPEN; + v[0].x = r0; + v[0].y = 0; + v[1].code = ART_LINETO; + v[1].x = r1; + v[1].y = 0; + v[2].code = ART_END; + + double m[6] = {0, 0, 0, 0, 0, 0}; + art_affine_rotate(m, 90 - alpha); + vx = art_vpath_affine_transform(v, m); + art_free(v); + v = art_vpath_affine_transform(vx, m_matrix); + art_free(vx); + + double w = width * m_matrix[0]; + if (w < 1.0) + w = 1.0; + + ArtSVP *path = art_svp_vpath_stroke(v, ART_PATH_STROKE_JOIN_MITER, + ART_PATH_STROKE_CAP_BUTT, w, 4, .5); + art_rgb_svp_alpha(path, 0, 0, m_width, m_height, m_color, m_buf, 3 * m_width, 0); + art_svp_free(path); + art_free(v); +} + + +void KClockPainter::drawDisc(double r) +{ + ArtVpath *v, *vx = art_vpath_new_circle(0, 0, r); + v = art_vpath_affine_transform(vx, m_matrix); + art_free(vx); + + ArtSVP *path = art_svp_from_vpath(v); + art_rgb_svp_alpha(path, 0, 0, m_width, m_height, m_color, m_buf, 3 * m_width, 0); + art_svp_free(path); + + path = art_svp_vpath_stroke(v, ART_PATH_STROKE_JOIN_MITER, + ART_PATH_STROKE_CAP_BUTT, 2, 4, .5); + art_free(v); + + art_rgb_svp_alpha(path, 0, 0, m_width, m_height, m_color, m_buf, 3 * m_width, 0); + art_svp_free(path); +} + + +void KClockPainter::drawHand(const TQColor &c, double angle, double length, + double width, bool disc = true) +{ + const double shadow_width = 1.0; + setColor(m_shadow); + if (disc) + drawDisc(width * 1.3 + shadow_width); + drawRadial(angle, .75 * width, length + shadow_width, width + shadow_width); + + setColor(c); + if (disc) + drawDisc(width * 1.3); + drawRadial(angle, .75 * width, length, width); +} + + + + + + +//----------------------------------------------------------------------------- + +KClockSaver::KClockSaver(WId id) + : KScreenSaver(id), + m_showSecond(true) +{ + readSettings(); + setBackgroundColor(m_bgndColor); + connect(&m_timer, TQT_SIGNAL(timeout()), TQT_SLOT(slotTimeout())); + start(m_size); + m_timer.start(TIMER_INTERVALL); +} + + +KClockSaver::~KClockSaver() +{ + m_timer.stop(); + stop(); +} + + +void KClockSaver::start(int size) +{ + m_diameter = int(TQMIN(width(), height()) * (size + 4) / 14.0); + m_x = (width() - m_diameter) / 2; + m_y = (height() - m_diameter) / 2; + + m_image = new TQImage(m_diameter, m_diameter, 32); + m_scale = new KClockPainter(m_diameter, m_diameter); + m_clock = new KClockPainter(m_diameter, m_diameter); + + m_clock->setShadowColor(tqRgb((m_bgndColor.red() + m_scaleColor.red()) / 2, + (m_bgndColor.green() + m_scaleColor.green()) / 2, + (m_bgndColor.blue() + m_scaleColor.blue()) / 2)); + drawScale(); + forceRedraw(); +} + + +void KClockSaver::stop() +{ + delete m_clock; + delete m_scale; + delete m_image; +} + + +void KClockSaver::restart(int size) +{ + m_timer.stop(); + stop(); + start(size); + drawScale(); + m_timer.start(TIMER_INTERVALL); +} + + +void KClockSaver::setKeepCentered(bool b) +{ + m_keepCentered = b; + if (b) { + m_x = (width() - m_diameter) / 2; + m_y = (height() - m_diameter) / 2; + } + forceRedraw(); +} + + +void KClockSaver::readSettings() +{ + TDEConfig *config = TDEGlobal::config(); + + config->setGroup("Settings"); + m_keepCentered = config->readBoolEntry("KeepCentered", DEFAULT_KEEP_CENTERED); + m_size = config->readUnsignedNumEntry("Size", DEFAULT_CLOCK_SIZE); + if (m_size > MAX_CLOCK_SIZE) + m_size = MAX_CLOCK_SIZE; + + config->setGroup("Colors"); + TQColor c = TQt::black; + m_bgndColor = config->readColorEntry("Background", &c); + + c = TQt::white; + m_scaleColor = config->readColorEntry("Scale", &c); + m_hourColor = config->readColorEntry("HourHand", &c); + m_minColor = config->readColorEntry("MinuteHand", &c); + + c = TQt::red; + m_secColor = config->readColorEntry("SecondHand", &c); +} + + +void KClockSaver::drawScale() +{ + m_scale->fill(m_bgndColor); + m_scale->setColor(m_scaleColor); + + for (int i = 0; i < 360; i += 6) + if (i % 30) + m_scale->drawRadial(i, 920, 980, 15); + else + m_scale->drawRadial(i, 825, 980, 40); + + forceRedraw(); +} + + +void KClockSaver::drawClock() +{ + double hour_angle = m_hour * 30.0 + m_minute * .5; + double minute_angle = m_minute * 6.0 + m_second * .1; + double second_angle = m_second * 6.0; + + m_clock->copy(m_scale); + m_clock->drawHand(m_hourColor, hour_angle, 600, 55, false); + m_clock->drawHand(m_minColor, minute_angle, 900, 40); + + if (m_showSecond) + m_clock->drawHand(m_secColor, second_angle, 900, 30); +} + + +void KClockSaver::slotTimeout() +{ + TQTime t = TQTime::currentTime(); + int s = t.second(); + if (s == m_second) + return; + + m_second = m_showSecond ? s : 0; + m_hour = t.hour(); + m_minute = t.minute(); + + drawClock(); + TQPainter p(this); + + if (width() < 256) { + // intended for the control module preview: always fill the whole area + TQImage *img = new TQImage(width(), height(), 32); + img->fill(tqRgb(m_bgndColor.red(), m_bgndColor.green(), m_bgndColor.blue())); + m_clock->drawToImage(img, m_x, m_y); + p.drawImage(0, 0, *img); + delete img; + } else { + m_clock->drawToImage(m_image); + p.drawImage(m_x, m_y, *m_image); + } + + if (!m_keepCentered) { + static int xstep = 1; + static int ystep = -1; + int i; + + m_x += xstep; + if (m_x <= 0) + m_x = 0, xstep = 1; + else if (m_x >= (i = width() - m_diameter)) + m_x = i, xstep = -1; + + m_y += ystep; + if (m_y <= 0) + m_y = 0, ystep = 1; + else if (m_y >= (i = height() - m_diameter)) + m_y = i, ystep = -1; + } +} + + |