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-rw-r--r--kdeui/kruler.cpp742
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diff --git a/kdeui/kruler.cpp b/kdeui/kruler.cpp
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+++ b/kdeui/kruler.cpp
@@ -0,0 +1,742 @@
+/* This file is part of the KDE libraries
+ Copyright (C) 1998 Jörg Habenicht (j.habenicht@europemail.com)
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License as published by the Free Software Foundation; either
+ version 2 of the License, or (at your option) any later version.
+
+ This library 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public License
+ along with this library; see the file COPYING.LIB. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+*/
+
+
+#include "kruler.h"
+
+#include <qpainter.h>
+#include <qfont.h>
+
+#define INIT_VALUE 0
+#define INIT_MIN_VALUE 0
+#define INIT_MAX_VALUE 100
+#define INIT_TINY_MARK_DISTANCE 1
+#define INIT_LITTLE_MARK_DISTANCE 5
+#define INIT_MIDDLE_MARK_DISTANCE (INIT_LITTLE_MARK_DISTANCE * 2)
+#define INIT_BIG_MARK_DISTANCE (INIT_LITTLE_MARK_DISTANCE * 10)
+#define INIT_SHOW_TINY_MARK false
+#define INIT_SHOW_LITTLE_MARK true
+#define INIT_SHOW_MEDIUM_MARK true
+#define INIT_SHOW_BIG_MARK true
+#define INIT_SHOW_END_MARK true
+#define INIT_SHOW_POINTER true
+#define INIT_SHOW_END_LABEL true
+
+#define INIT_PIXEL_PER_MARK (double)10.0 /* distance between 2 base marks in pixel */
+#define INIT_OFFSET (-20)
+#define INIT_LENGTH_FIX true
+#define INIT_END_OFFSET 0
+
+#define FIX_WIDTH 20 /* widget width in pixel */
+#define LINE_END (FIX_WIDTH - 3)
+#define END_MARK_LENGTH (FIX_WIDTH - 6)
+#define END_MARK_X2 LINE_END
+#define END_MARK_X1 (END_MARK_X2 - END_MARK_LENGTH)
+#define BIG_MARK_LENGTH (END_MARK_LENGTH*3/4)
+#define BIG_MARK_X2 LINE_END
+#define BIG_MARK_X1 (BIG_MARK_X2 - BIG_MARK_LENGTH)
+#define MIDDLE_MARK_LENGTH (END_MARK_LENGTH/2)
+#define MIDDLE_MARK_X2 LINE_END
+#define MIDDLE_MARK_X1 (MIDDLE_MARK_X2 - MIDDLE_MARK_LENGTH)
+#define LITTLE_MARK_LENGTH (MIDDLE_MARK_LENGTH/2)
+#define LITTLE_MARK_X2 LINE_END
+#define LITTLE_MARK_X1 (LITTLE_MARK_X2 - LITTLE_MARK_LENGTH)
+#define BASE_MARK_LENGTH (LITTLE_MARK_LENGTH/2)
+#define BASE_MARK_X2 LINE_END
+#define BASE_MARK_X1 (BASE_MARK_X2 - BASE_MARK_LENGTH)
+
+#define LABEL_SIZE 8
+#define END_LABEL_X 4
+#define END_LABEL_Y (END_LABEL_X + LABEL_SIZE - 2)
+
+#undef PROFILING
+
+#ifdef PROFILING
+# include <qdatetime.h>
+#endif
+
+class KRuler::KRulerPrivate
+{
+public:
+ bool showpointer;
+ bool showEndL;
+ bool lengthFix;
+ int endOffset_length; /* marks the offset at the end of the ruler
+ * i.e. right side at horizontal and down side
+ * at vertical rulers.
+ * the ruler end mark is moved endOffset_length
+ * ticks away from the widget end.
+ * positive offset moves end mark inside the ruler.
+ * if lengthFix is true, endOffset_length holds the
+ * length of the ruler.
+ */
+ int fontWidth; // ONLY valid for vertical rulers
+};
+
+
+
+KRuler::KRuler(QWidget *parent, const char *name)
+ : QFrame(parent, name),
+ range(INIT_MIN_VALUE, INIT_MAX_VALUE, 1, 10, INIT_VALUE),
+ dir(Horizontal)
+{
+ init();
+ setFixedHeight(FIX_WIDTH);
+}
+
+
+KRuler::KRuler(Orientation orient,
+ QWidget *parent, const char *name, WFlags f)
+ : QFrame(parent, name, f),
+ range(INIT_MIN_VALUE, INIT_MAX_VALUE, 1, 10, INIT_VALUE),
+ dir(orient)
+{
+ init();
+ if (orient == Horizontal)
+ setFixedHeight(FIX_WIDTH);
+ else
+ setFixedWidth(FIX_WIDTH);
+}
+
+
+KRuler::KRuler(Orientation orient, int widgetWidth,
+ QWidget *parent, const char *name, WFlags f)
+ : QFrame(parent, name, f),
+ range(INIT_MIN_VALUE, INIT_MAX_VALUE, 1, 10, INIT_VALUE),
+ dir(orient)
+{
+ init();
+
+ if (orient == Horizontal)
+ setFixedHeight(widgetWidth);
+ else
+ setFixedWidth(widgetWidth);
+}
+
+
+void KRuler::init()
+{
+ setFrameStyle(WinPanel | Raised);
+
+ tmDist = INIT_TINY_MARK_DISTANCE;
+ lmDist = INIT_LITTLE_MARK_DISTANCE;
+ mmDist = INIT_MIDDLE_MARK_DISTANCE;
+ bmDist = INIT_BIG_MARK_DISTANCE;
+ offset_= INIT_OFFSET;
+ showtm = INIT_SHOW_TINY_MARK;
+ showlm = INIT_SHOW_LITTLE_MARK;
+ showmm = INIT_SHOW_MEDIUM_MARK;
+ showbm = INIT_SHOW_BIG_MARK;
+ showem = INIT_SHOW_END_MARK;
+ ppm = INIT_PIXEL_PER_MARK;
+
+ d = new KRuler::KRulerPrivate;
+ d->showpointer = INIT_SHOW_POINTER;
+ d->showEndL = INIT_SHOW_END_LABEL;
+ d->lengthFix = INIT_LENGTH_FIX;
+ d->endOffset_length = INIT_END_OFFSET;
+}
+
+
+KRuler::~KRuler()
+{
+ delete d;
+}
+
+void
+KRuler::setMinValue(int value)
+{
+ if (range.minValue() != value) {
+ range.setRange( value, range.maxValue() );
+ update(contentsRect());
+ }
+}
+
+void
+KRuler::setMaxValue(int value)
+{
+ if (range.maxValue() != value) {
+ range.setRange( range.minValue(), value );
+ update(contentsRect());
+ }
+}
+
+void
+KRuler::setRange(int min, int max)
+{// debug("set range from %i to %i", min, max);
+ if ((range.minValue() != min) || (range.maxValue() != max)) {
+ range.setRange( min, max );
+ update(contentsRect());
+ }
+}
+
+void
+KRuler::setValue(int value)
+{
+ range.setValue(value);
+ update(contentsRect());
+}
+
+void
+KRuler::setTinyMarkDistance(int dist)
+{
+ if (dist != tmDist) {
+ tmDist = dist;
+ update(contentsRect());
+ }
+}
+
+void
+KRuler::setLittleMarkDistance(int dist)
+{
+ if (dist != lmDist) {
+ lmDist = dist;
+ update(contentsRect());
+ }
+}
+
+void
+KRuler::setMediumMarkDistance(int dist)
+{
+ if (dist != mmDist) {
+ mmDist = dist;
+ update(contentsRect());
+ }
+}
+
+void
+KRuler::setBigMarkDistance(int dist)
+{
+ if (dist != bmDist) {
+ bmDist = dist;
+ update(contentsRect());
+ }
+}
+
+void
+KRuler::setShowTinyMarks(bool show)
+{
+ if (show != showtm) {
+ showtm = show;
+ update(contentsRect());
+ }
+}
+
+bool
+KRuler::showTinyMarks() const
+{
+ return showtm;
+}
+
+void
+KRuler::setShowLittleMarks(bool show)
+{
+ if (show != showlm) {
+ showlm = show;
+ update(contentsRect());
+ }
+}
+
+bool
+KRuler::showLittleMarks() const
+{
+ return showlm;
+}
+
+void
+KRuler::setShowMediumMarks(bool show)
+{
+ if (show != showmm) {
+ showmm = show;
+ update(contentsRect());
+ }
+}
+
+bool
+KRuler::showMediumMarks() const
+{
+ return showmm;
+}
+
+void
+KRuler::setShowBigMarks(bool show)
+{
+ if (show != showbm) {
+ showbm = show;
+ update(contentsRect());
+ }
+}
+
+
+bool
+KRuler::showBigMarks() const
+{
+ return showbm;
+}
+
+void
+KRuler::setShowEndMarks(bool show)
+{
+ if (show != showem) {
+ showem = show;
+ update(contentsRect());
+ }
+}
+
+bool
+KRuler::showEndMarks() const
+{
+ return showem;
+}
+
+void
+KRuler::setShowPointer(bool show)
+{
+ if (show != d->showpointer) {
+ d->showpointer = show;
+ update(contentsRect());
+ }
+}
+
+
+bool
+KRuler::showPointer() const
+{
+ return d->showpointer;
+}
+
+void
+KRuler::setValuePerLittleMark(int)
+{
+ update(contentsRect());
+}
+
+void
+KRuler::setValuePerMediumMark(int)
+{
+ update(contentsRect());
+}
+
+void
+KRuler::setValuePerBigMark(int)
+{
+ update(contentsRect());
+}
+
+void
+KRuler::setShowEndLabel(bool show)
+{
+ if (d->showEndL != show) {
+ d->showEndL = show;
+ update(contentsRect());
+ }
+}
+
+
+bool
+KRuler::showEndLabel() const
+{
+ return d->showEndL;
+}
+
+
+void
+KRuler::setEndLabel(const QString& label)
+{
+ endlabel = label;
+
+ // premeasure the fontwidth and save it
+ if (dir == Vertical) {
+ QFont font = this->font();
+ font.setPointSize(LABEL_SIZE);
+ QFontMetrics fm(font);
+ d->fontWidth = fm.width(endlabel);
+ }
+ update(contentsRect());
+}
+
+QString KRuler::endLabel() const
+{
+ return endlabel;
+}
+
+void
+KRuler::setRulerMetricStyle(KRuler::MetricStyle style)
+{
+ switch (style) {
+ default: /* fall through */
+ case Custom:
+ return;
+ case Pixel:
+ setLittleMarkDistance(1);
+ setMediumMarkDistance(5);
+ setBigMarkDistance(10);
+
+ setShowTinyMarks(false);
+ setShowLittleMarks(true);
+ setShowMediumMarks(true);
+ setShowBigMarks(true);
+ setShowEndMarks(true);
+
+ update(contentsRect());
+ setPixelPerMark(10.0);
+
+ break;
+ case Inch:
+ setTinyMarkDistance(1);
+ setLittleMarkDistance(2);
+ setMediumMarkDistance(4);
+ setBigMarkDistance(8);
+
+ setShowTinyMarks(true);
+ setShowLittleMarks(true);
+ setShowMediumMarks(true);
+ setShowBigMarks(true);
+ setShowEndMarks(true);
+
+ update(contentsRect());
+ setPixelPerMark(9.0);
+
+ break;
+ case Millimetres: /* fall through */
+ case Centimetres: /* fall through */
+ case Metres:
+ setLittleMarkDistance(1);
+ setMediumMarkDistance(5);
+ setBigMarkDistance(10);
+
+ setShowTinyMarks(false);
+ setShowLittleMarks(true);
+ setShowMediumMarks(true);
+ setShowBigMarks(true);
+ setShowEndMarks(true);
+
+ update(contentsRect());
+ setPixelPerMark(3.0);
+ }
+ switch (style) {
+ case Pixel:
+ setEndLabel(QString::fromLatin1("pixel"));
+ break;
+ case Inch:
+ setEndLabel(QString::fromLatin1("inch"));
+ break;
+ case Millimetres:
+ setEndLabel(QString::fromLatin1("mm"));
+ break;
+ case Centimetres:
+ setEndLabel(QString::fromLatin1("cm"));
+ break;
+ case Metres:
+ setEndLabel(QString::fromLatin1("m"));
+ default: /* never reached, see above switch */
+ /* empty command */;
+ }
+ // if the style changes one of the values,
+ // update would have been called inside the methods
+ // -> no update() call needed here !
+}
+
+void
+KRuler::setPixelPerMark(double rate)
+{ // never compare floats against each other :)
+ ppm = rate;
+ update(contentsRect());
+}
+
+
+void
+KRuler::setLength(int length)
+{
+ int tmp;
+ if (d->lengthFix) {
+ tmp = length;
+ }
+ else {
+ tmp = this->width() - length;
+ }
+ if (tmp != d->endOffset_length) {
+ d->endOffset_length = tmp;
+ update(contentsRect());
+ }
+}
+
+int
+KRuler::length() const
+{
+ if (d->lengthFix) {
+ return d->endOffset_length;
+ }
+ return (this->width() - d->endOffset_length);
+}
+
+
+void
+KRuler::setLengthFixed(bool fix)
+{
+ d->lengthFix = fix;
+}
+
+bool
+KRuler::lengthFixed() const
+{
+ return d->lengthFix;
+}
+
+void
+KRuler::setOffset(int _offset)
+{// debug("set offset %i", _offset);
+ if (offset_ != _offset) {
+ offset_ = _offset;
+ update(contentsRect());
+ }
+}
+
+int
+KRuler::endOffset() const
+{
+ if (d->lengthFix) {
+ return (this->width() - d->endOffset_length);
+ }
+ return d->endOffset_length;
+}
+
+
+void
+KRuler::slideUp(int count)
+{
+ if (count) {
+ offset_ += count;
+ update(contentsRect());
+ }
+}
+
+void
+KRuler::slideDown(int count)
+{
+ if (count) {
+ offset_ -= count;
+ update(contentsRect());
+ }
+}
+
+
+void
+KRuler::slotNewValue(int _value)
+{
+ int oldvalue = range.value();
+ if (oldvalue == _value) {
+ return;
+ }
+ // setValue(_value);
+ range.setValue(_value);
+ if (range.value() == oldvalue) {
+ return;
+ }
+ // get the rectangular of the old and the new ruler pointer
+ // and repaint only him
+ if (dir == Horizontal) {
+ QRect oldrec(-5+oldvalue,10, 11,6);
+ QRect newrec(-5+_value,10, 11,6);
+ repaint( oldrec.unite(newrec) );
+ }
+ else {
+ QRect oldrec(10,-5+oldvalue, 6,11);
+ QRect newrec(10,-5+_value, 6,11);
+ repaint( oldrec.unite(newrec) );
+ }
+}
+
+void
+KRuler::slotNewOffset(int _offset)
+{
+ if (offset_ != _offset) {
+ //setOffset(_offset);
+ offset_ = _offset;
+ repaint(contentsRect());
+ }
+}
+
+
+void
+KRuler::slotEndOffset(int offset)
+{
+ int tmp;
+ if (d->lengthFix) {
+ tmp = this->width() - offset;
+ }
+ else {
+ tmp = offset;
+ }
+ if (d->endOffset_length != tmp) {
+ d->endOffset_length = tmp;
+ repaint(contentsRect());
+ }
+}
+
+void
+KRuler::drawContents(QPainter *p)
+{
+ // debug ("KRuler::drawContents, %s",(horizontal==dir)?"horizontal":"vertical");
+
+#ifdef PROFILING
+ QTime time;
+ time.start();
+ for (int profile=0; profile<10; profile++) {
+#endif
+
+ int value = range.value(),
+ minval = range.minValue(),
+ maxval;
+ if (dir == Horizontal) {
+ maxval = range.maxValue()
+ + offset_
+ - (d->lengthFix?(height()-d->endOffset_length):d->endOffset_length);
+ }
+ else
+ {
+ maxval = range.maxValue()
+ + offset_
+ - (d->lengthFix?(width()-d->endOffset_length):d->endOffset_length);
+ }
+ //ioffsetval = value-offset;
+ // pixelpm = (int)ppm;
+ // left = clip.left(),
+ // right = clip.right();
+ double f, fend,
+ offsetmin=(double)(minval-offset_),
+ offsetmax=(double)(maxval-offset_),
+ fontOffset = (((double)minval)>offsetmin)?(double)minval:offsetmin;
+
+ // draw labels
+ QFont font = p->font();
+ font.setPointSize(LABEL_SIZE);
+ p->setFont( font );
+ // draw littlemarklabel
+
+ // draw mediummarklabel
+
+ // draw bigmarklabel
+
+ // draw endlabel
+ if (d->showEndL) {
+ if (dir == Horizontal) {
+ p->translate( fontOffset, 0 );
+ p->drawText( END_LABEL_X, END_LABEL_Y, endlabel );
+ }
+ else { // rotate text +pi/2 and move down a bit
+ //QFontMetrics fm(font);
+#ifdef KRULER_ROTATE_TEST
+ p->rotate( -90.0 + rotate );
+ p->translate( -8.0 - fontOffset - d->fontWidth + xtrans,
+ ytrans );
+#else
+ p->rotate( -90.0 );
+ p->translate( -8.0 - fontOffset - d->fontWidth, 0.0 );
+#endif
+ p->drawText( END_LABEL_X, END_LABEL_Y, endlabel );
+ }
+ p->resetXForm();
+ }
+
+ // draw the tiny marks
+ if (showtm) {
+ fend = ppm*tmDist;
+ for ( f=offsetmin; f<offsetmax; f+=fend ) {
+ if (dir == Horizontal) {
+ p->drawLine((int)f, BASE_MARK_X1, (int)f, BASE_MARK_X2);
+ }
+ else {
+ p->drawLine(BASE_MARK_X1, (int)f, BASE_MARK_X2, (int)f);
+ }
+ }
+ }
+ if (showlm) {
+ // draw the little marks
+ fend = ppm*lmDist;
+ for ( f=offsetmin; f<offsetmax; f+=fend ) {
+ if (dir == Horizontal) {
+ p->drawLine((int)f, LITTLE_MARK_X1, (int)f, LITTLE_MARK_X2);
+ }
+ else {
+ p->drawLine(LITTLE_MARK_X1, (int)f, LITTLE_MARK_X2, (int)f);
+ }
+ }
+ }
+ if (showmm) {
+ // draw medium marks
+ fend = ppm*mmDist;
+ for ( f=offsetmin; f<offsetmax; f+=fend ) {
+ if (dir == Horizontal) {
+ p->drawLine((int)f, MIDDLE_MARK_X1, (int)f, MIDDLE_MARK_X2);
+ }
+ else {
+ p->drawLine(MIDDLE_MARK_X1, (int)f, MIDDLE_MARK_X2, (int)f);
+ }
+ }
+ }
+ if (showbm) {
+ // draw big marks
+ fend = ppm*bmDist;
+ for ( f=offsetmin; f<offsetmax; f+=fend ) {
+ if (dir == Horizontal) {
+ p->drawLine((int)f, BIG_MARK_X1, (int)f, BIG_MARK_X2);
+ }
+ else {
+ p->drawLine(BIG_MARK_X1, (int)f, BIG_MARK_X2, (int)f);
+ }
+ }
+ }
+ if (showem) {
+ // draw end marks
+ if (dir == Horizontal) {
+ p->drawLine(minval-offset_, END_MARK_X1, minval-offset_, END_MARK_X2);
+ p->drawLine(maxval-offset_, END_MARK_X1, maxval-offset_, END_MARK_X2);
+ }
+ else {
+ p->drawLine(END_MARK_X1, minval-offset_, END_MARK_X2, minval-offset_);
+ p->drawLine(END_MARK_X1, maxval-offset_, END_MARK_X2, maxval-offset_);
+ }
+ }
+
+ // draw pointer
+ if (d->showpointer) {
+ QPointArray pa(4);
+ if (dir == Horizontal) {
+ pa.setPoints(3, value-5, 10, value+5, 10, value/*+0*/,15);
+ }
+ else {
+ pa.setPoints(3, 10, value-5, 10, value+5, 15, value/*+0*/);
+ }
+ p->setBrush( p->backgroundColor() );
+ p->drawPolygon( pa );
+ }
+
+#ifdef PROFILING
+ }
+ int elapsed = time.elapsed();
+ debug("paint time %i",elapsed);
+#endif
+
+}
+
+void KRuler::virtual_hook( int, void* )
+{ /*BASE::virtual_hook( id, data );*/ }
+
+#include "kruler.moc"
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