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/* This file is part of the KDE libraries
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Copyright (C) 1998 Jörg Habenicht (j.habenicht@europemail.com)
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#define PAINT_BENCH
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#undef PAINT_BENCH
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#ifdef PAINT_BENCH
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#include <tqdatetime.h>
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#include <stdio.h>
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#endif
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#include <tqpainter.h>
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#include <tqimage.h>
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#include <tqcolor.h>
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#include <kapplication.h>
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#include <kpixmapeffect.h>
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#include "kled.h"
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class KLed::KLedPrivate
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{
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friend class KLed;
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int dark_factor;
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TQColor offcolor;
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TQPixmap *off_map;
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TQPixmap *on_map;
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};
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KLed::KLed(TQWidget *parent, const char *name)
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: TQWidget( parent, name),
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led_state(On),
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led_look(Raised),
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led_shape(Circular)
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{
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TQColor col(green);
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d = new KLed::KLedPrivate;
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d->dark_factor = 300;
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d->offcolor = col.dark(300);
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d->off_map = 0;
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d->on_map = 0;
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setColor(col);
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}
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KLed::KLed(const TQColor& col, TQWidget *parent, const char *name)
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: TQWidget( parent, name),
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led_state(On),
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led_look(Raised),
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led_shape(Circular)
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{
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d = new KLed::KLedPrivate;
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d->dark_factor = 300;
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d->offcolor = col.dark(300);
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d->off_map = 0;
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d->on_map = 0;
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setColor(col);
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//setShape(Circular);
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}
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KLed::KLed(const TQColor& col, KLed::State state,
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KLed::Look look, KLed::Shape shape, TQWidget *parent, const char *name )
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: TQWidget(parent, name),
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led_state(state),
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led_look(look),
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led_shape(shape)
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{
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d = new KLed::KLedPrivate;
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d->dark_factor = 300;
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d->offcolor = col.dark(300);
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d->off_map = 0;
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d->on_map = 0;
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//setShape(shape);
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setColor(col);
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}
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KLed::~KLed()
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{
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delete d->off_map;
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delete d->on_map;
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delete d;
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}
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void
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KLed::paintEvent(TQPaintEvent *)
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{
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#ifdef PAINT_BENCH
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const int rounds = 1000;
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TQTime t;
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t.start();
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for (int i=0; i<rounds; i++) {
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#endif
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switch(led_shape)
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{
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case Rectangular:
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switch (led_look)
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{
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case Sunken :
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paintRectFrame(false);
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break;
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case Raised :
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paintRectFrame(true);
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break;
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case Flat :
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paintRect();
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break;
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default :
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qWarning("%s: in class KLed: no KLed::Look set",qApp->argv()[0]);
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}
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break;
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case Circular:
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switch (led_look)
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{
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case Flat :
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paintFlat();
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break;
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case Raised :
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paintRound();
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break;
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case Sunken :
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paintSunken();
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break;
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default:
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qWarning("%s: in class KLed: no KLed::Look set",qApp->argv()[0]);
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}
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break;
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default:
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qWarning("%s: in class KLed: no KLed::Shape set",qApp->argv()[0]);
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break;
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}
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#ifdef PAINT_BENCH
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}
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int ready = t.elapsed();
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qWarning("elapsed: %d msec. for %d rounds", ready, rounds);
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#endif
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}
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int
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KLed::ensureRoundLed()
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{
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// Initialize coordinates, width, and height of the LED
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//
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int width = this->width();
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// Make sure the LED is round!
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if (width > this->height())
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width = this->height();
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width -= 2; // leave one pixel border
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if (width < 0)
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width = 0;
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return width;
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}
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bool
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KLed::paintCachedPixmap()
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{
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if (led_state) {
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if (d->on_map) {
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TQPainter paint(this);
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paint.drawPixmap(0, 0, *d->on_map);
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return true;
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}
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} else {
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if (d->off_map) {
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TQPainter paint(this);
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paint.drawPixmap(0, 0, *d->off_map);
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return true;
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}
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}
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return false;
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}
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void
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KLed::paintFlat() // paint a ROUND FLAT led lamp
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{
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if (paintCachedPixmap()) return;
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TQPainter paint;
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TQColor color;
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TQBrush brush;
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TQPen pen;
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int width = ensureRoundLed();
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int scale = 3;
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TQPixmap *tmpMap = 0;
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width *= scale;
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tmpMap = new TQPixmap(width + 6, width + 6);
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tmpMap->fill(paletteBackgroundColor());
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// start painting widget
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//
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paint.begin(tmpMap);
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// Set the color of the LED according to given parameters
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color = ( led_state ) ? led_color : d->offcolor;
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// Set the brush to SolidPattern, this fills the entire area
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// of the ellipse which is drawn with a thin gray "border" (pen)
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brush.setStyle( TQBrush::SolidPattern );
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brush.setColor( color );
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pen.setWidth( scale );
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color = colorGroup().dark();
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pen.setColor( color ); // Set the pen accordingly
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paint.setPen( pen ); // Select pen for drawing
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paint.setBrush( brush ); // Assign the brush to the painter
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// Draws a "flat" LED with the given color:
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paint.drawEllipse( scale, scale, width - scale * 2, width - scale * 2 );
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paint.end();
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//
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// painting done
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TQPixmap *&dest = led_state ? d->on_map : d->off_map;
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TQImage i = tmpMap->convertToImage();
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width /= 3;
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i = i.smoothScale(width, width);
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delete tmpMap;
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dest = new TQPixmap(i);
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paint.begin(this);
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paint.drawPixmap(0, 0, *dest);
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paint.end();
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}
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void
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KLed::paintRound() // paint a ROUND RAISED led lamp
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{
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if (paintCachedPixmap()) return;
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TQPainter paint;
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TQColor color;
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TQBrush brush;
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TQPen pen;
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// Initialize coordinates, width, and height of the LED
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int width = ensureRoundLed();
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int scale = 3;
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TQPixmap *tmpMap = 0;
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width *= scale;
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tmpMap = new TQPixmap(width + 6, width + 6);
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tmpMap->fill(paletteBackgroundColor());
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paint.begin(tmpMap);
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// Set the color of the LED according to given parameters
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color = ( led_state ) ? led_color : d->offcolor;
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// Set the brush to SolidPattern, this fills the entire area
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// of the ellipse which is drawn first
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brush.setStyle( TQBrush::SolidPattern );
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brush.setColor( color );
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paint.setBrush( brush ); // Assign the brush to the painter
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// Draws a "flat" LED with the given color:
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paint.drawEllipse( scale, scale, width - scale*2, width - scale*2 );
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// Draw the bright light spot of the LED now, using modified "old"
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// painter routine taken from KDEUI´s KLed widget:
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// Setting the new width of the pen is essential to avoid "pixelized"
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// shadow like it can be observed with the old LED code
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pen.setWidth( 2 * scale );
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// shrink the light on the LED to a size about 2/3 of the complete LED
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int pos = width/5 + 1;
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int light_width = width;
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light_width *= 2;
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light_width /= 3;
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// Calculate the LED´s "light factor":
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int light_quote = (130*2/(light_width?light_width:1))+100;
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// Now draw the bright spot on the LED:
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while (light_width) {
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color = color.light( light_quote ); // make color lighter
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pen.setColor( color ); // set color as pen color
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paint.setPen( pen ); // select the pen for drawing
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paint.drawEllipse( pos, pos, light_width, light_width ); // draw the ellipse (circle)
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light_width--;
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if (!light_width)
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break;
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paint.drawEllipse( pos, pos, light_width, light_width );
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light_width--;
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if (!light_width)
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break;
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paint.drawEllipse( pos, pos, light_width, light_width );
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pos++; light_width--;
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}
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// Drawing of bright spot finished, now draw a thin gray border
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// around the LED; it looks nicer that way. We do this here to
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// avoid that the border can be erased by the bright spot of the LED
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pen.setWidth( 2 * scale + 1 );
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color = colorGroup().dark();
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pen.setColor( color ); // Set the pen accordingly
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paint.setPen( pen ); // Select pen for drawing
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brush.setStyle( TQBrush::NoBrush ); // Switch off the brush
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paint.setBrush( brush ); // This avoids filling of the ellipse
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paint.drawEllipse( 2, 2, width, width );
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paint.end();
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//
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// painting done
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TQPixmap *&dest = led_state ? d->on_map : d->off_map;
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TQImage i = tmpMap->convertToImage();
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width /= 3;
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i = i.smoothScale(width, width);
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delete tmpMap;
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dest = new TQPixmap(i);
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paint.begin(this);
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paint.drawPixmap(0, 0, *dest);
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paint.end();
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}
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void
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KLed::paintSunken() // paint a ROUND SUNKEN led lamp
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{
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if (paintCachedPixmap()) return;
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TQPainter paint;
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TQColor color;
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TQBrush brush;
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TQPen pen;
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// First of all we want to know what area should be updated
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// Initialize coordinates, width, and height of the LED
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int width = ensureRoundLed();
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int scale = 3;
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TQPixmap *tmpMap = 0;
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width *= scale;
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tmpMap = new TQPixmap(width, width);
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tmpMap->fill(paletteBackgroundColor());
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paint.begin(tmpMap);
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// Set the color of the LED according to given parameters
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color = ( led_state ) ? led_color : d->offcolor;
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// Set the brush to SolidPattern, this fills the entire area
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// of the ellipse which is drawn first
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brush.setStyle( TQBrush::SolidPattern );
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brush.setColor( color );
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paint.setBrush( brush ); // Assign the brush to the painter
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// Draws a "flat" LED with the given color:
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paint.drawEllipse( scale, scale, width - scale*2, width - scale*2 );
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// Draw the bright light spot of the LED now, using modified "old"
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// painter routine taken from KDEUI´s KLed widget:
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// Setting the new width of the pen is essential to avoid "pixelized"
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// shadow like it can be observed with the old LED code
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pen.setWidth( 2 * scale );
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// shrink the light on the LED to a size about 2/3 of the complete LED
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int pos = width/5 + 1;
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int light_width = width;
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light_width *= 2;
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light_width /= 3;
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// Calculate the LED´s "light factor":
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int light_quote = (130*2/(light_width?light_width:1))+100;
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// Now draw the bright spot on the LED:
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while (light_width) {
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color = color.light( light_quote ); // make color lighter
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pen.setColor( color ); // set color as pen color
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paint.setPen( pen ); // select the pen for drawing
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paint.drawEllipse( pos, pos, light_width, light_width ); // draw the ellipse (circle)
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light_width--;
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if (!light_width)
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break;
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paint.drawEllipse( pos, pos, light_width, light_width );
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light_width--;
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if (!light_width)
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break;
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paint.drawEllipse( pos, pos, light_width, light_width );
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pos++; light_width--;
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}
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// Drawing of bright spot finished, now draw a thin border
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// around the LED which resembles a shadow with light coming
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// from the upper left.
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pen.setWidth( 2 * scale + 1 ); // ### shouldn't this value be smaller for smaller LEDs?
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brush.setStyle( TQBrush::NoBrush ); // Switch off the brush
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paint.setBrush( brush ); // This avoids filling of the ellipse
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// Set the initial color value to colorGroup().light() (bright) and start
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// drawing the shadow border at 45° (45*16 = 720).
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int angle = -720;
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color = colorGroup().light();
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for ( int arc = 120; arc < 2880; arc += 240 ) {
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pen.setColor( color );
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paint.setPen( pen );
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int w = width - pen.width()/2 - scale + 1;
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paint.drawArc( pen.width()/2, pen.width()/2, w, w, angle + arc, 240 );
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paint.drawArc( pen.width()/2, pen.width()/2, w, w, angle - arc, 240 );
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color = color.dark( 110 ); //FIXME: this should somehow use the contrast value
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} // end for ( angle = 720; angle < 6480; angle += 160 )
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paint.end();
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//
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// painting done
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TQPixmap *&dest = led_state ? d->on_map : d->off_map;
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TQImage i = tmpMap->convertToImage();
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width /= 3;
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i = i.smoothScale(width, width);
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delete tmpMap;
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dest = new TQPixmap(i);
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paint.begin(this);
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paint.drawPixmap(0, 0, *dest);
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paint.end();
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}
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void
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KLed::paintRect()
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{
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TQPainter painter(this);
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TQBrush lightBrush(led_color);
|
|
|
TQBrush darkBrush(d->offcolor);
|
|
|
TQPen pen(led_color.dark(300));
|
|
|
int w=width();
|
|
|
int h=height();
|
|
|
// -----
|
|
|
switch(led_state)
|
|
|
{
|
|
|
case On:
|
|
|
painter.setBrush(lightBrush);
|
|
|
painter.drawRect(0, 0, w, h);
|
|
|
break;
|
|
|
case Off:
|
|
|
painter.setBrush(darkBrush);
|
|
|
painter.drawRect(0, 0, w, h);
|
|
|
painter.setPen(pen);
|
|
|
painter.drawLine(0, 0, w, 0);
|
|
|
painter.drawLine(0, h-1, w, h-1);
|
|
|
// Draw verticals
|
|
|
int i;
|
|
|
for(i=0; i < w; i+= 4 /* dx */)
|
|
|
painter.drawLine(i, 1, i, h-1);
|
|
|
break;
|
|
|
default: break;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void
|
|
|
KLed::paintRectFrame(bool raised)
|
|
|
{
|
|
|
TQPainter painter(this);
|
|
|
TQBrush lightBrush(led_color);
|
|
|
TQBrush darkBrush(d->offcolor);
|
|
|
int w=width();
|
|
|
int h=height();
|
|
|
TQColor black=Qt::black;
|
|
|
TQColor white=Qt::white;
|
|
|
// -----
|
|
|
if(raised)
|
|
|
{
|
|
|
painter.setPen(white);
|
|
|
painter.drawLine(0, 0, 0, h-1);
|
|
|
painter.drawLine(1, 0, w-1, 0);
|
|
|
painter.setPen(black);
|
|
|
painter.drawLine(1, h-1, w-1, h-1);
|
|
|
painter.drawLine(w-1, 1, w-1, h-1);
|
|
|
painter.fillRect(1, 1, w-2, h-2,
|
|
|
(led_state==On)? lightBrush : darkBrush);
|
|
|
} else {
|
|
|
painter.setPen(black);
|
|
|
painter.drawRect(0,0,w,h);
|
|
|
painter.drawRect(0,0,w-1,h-1);
|
|
|
painter.setPen(white);
|
|
|
painter.drawRect(1,1,w-1,h-1);
|
|
|
painter.fillRect(2, 2, w-4, h-4,
|
|
|
(led_state==On)? lightBrush : darkBrush);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
KLed::State
|
|
|
KLed::state() const
|
|
|
{
|
|
|
return led_state;
|
|
|
}
|
|
|
|
|
|
KLed::Shape
|
|
|
KLed::shape() const
|
|
|
{
|
|
|
return led_shape;
|
|
|
}
|
|
|
|
|
|
QColor
|
|
|
KLed::color() const
|
|
|
{
|
|
|
return led_color;
|
|
|
}
|
|
|
|
|
|
KLed::Look
|
|
|
KLed::look() const
|
|
|
{
|
|
|
return led_look;
|
|
|
}
|
|
|
|
|
|
void
|
|
|
KLed::setState( State state )
|
|
|
{
|
|
|
if (led_state != state)
|
|
|
{
|
|
|
led_state = state;
|
|
|
update();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void
|
|
|
KLed::toggleState()
|
|
|
{
|
|
|
toggle();
|
|
|
}
|
|
|
|
|
|
void
|
|
|
KLed::setShape(KLed::Shape s)
|
|
|
{
|
|
|
if(led_shape!=s)
|
|
|
{
|
|
|
led_shape = s;
|
|
|
update();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void
|
|
|
KLed::setColor(const TQColor& col)
|
|
|
{
|
|
|
if(led_color!=col) {
|
|
|
if(d->on_map) { delete d->on_map; d->on_map = 0; }
|
|
|
if(d->off_map) { delete d->off_map; d->off_map = 0; }
|
|
|
led_color = col;
|
|
|
d->offcolor = col.dark(d->dark_factor);
|
|
|
update();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void
|
|
|
KLed::setDarkFactor(int darkfactor)
|
|
|
{
|
|
|
if (d->dark_factor != darkfactor) {
|
|
|
d->dark_factor = darkfactor;
|
|
|
d->offcolor = led_color.dark(darkfactor);
|
|
|
update();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
int
|
|
|
KLed::darkFactor() const
|
|
|
{
|
|
|
return d->dark_factor;
|
|
|
}
|
|
|
|
|
|
void
|
|
|
KLed::setLook( Look look )
|
|
|
{
|
|
|
if(led_look!=look)
|
|
|
{
|
|
|
led_look = look;
|
|
|
update();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void
|
|
|
KLed::toggle()
|
|
|
{
|
|
|
led_state = (led_state == On) ? Off : On;
|
|
|
// setColor(led_color);
|
|
|
update();
|
|
|
}
|
|
|
|
|
|
void
|
|
|
KLed::on()
|
|
|
{
|
|
|
setState(On);
|
|
|
}
|
|
|
|
|
|
void
|
|
|
KLed::off()
|
|
|
{
|
|
|
setState(Off);
|
|
|
}
|
|
|
|
|
|
QSize
|
|
|
KLed::sizeHint() const
|
|
|
{
|
|
|
return TQSize(16, 16);
|
|
|
}
|
|
|
|
|
|
QSize
|
|
|
KLed::minimumSizeHint() const
|
|
|
{
|
|
|
return TQSize(16, 16 );
|
|
|
}
|
|
|
|
|
|
void KLed::virtual_hook( int, void* )
|
|
|
{ /*BASE::virtual_hook( id, data );*/ }
|
|
|
|
|
|
#include "kled.moc"
|