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-rw-r--r--chalk/ui/kis_ruler.cc367
1 files changed, 367 insertions, 0 deletions
diff --git a/chalk/ui/kis_ruler.cc b/chalk/ui/kis_ruler.cc
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+++ b/chalk/ui/kis_ruler.cc
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+/*
+ * Kivio - Visual Modelling and Flowcharting
+ * Copyright (C) 2000-2001 theKompany.com & Dave Marotti
+ * Copyright (C) 2002 Patrick Julien <freak@codepimps.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+#include <tqpainter.h>
+#include <tqstyle.h>
+
+#include "kdebug.h"
+
+#include "kis_ruler.h"
+
+#define MARKER_WIDTH 1
+#define MARKER_HEIGHT RULER_THICKNESS
+
+const char *KisRuler::m_nums[] = {
+ "70 7 2 1",
+ " c Black",
+ "X c None",
+ "XX XXXXXX XXXX XXXX XXXXXX XXX XXXX XXX XXX XXXX XX",
+ "X XXX XXXX XXX XXX XX XXX XXXX XXX XXXXXXX XXXXXXXXX XX XXX XX XXX X",
+ "X XXX XXXXX XXXXXXX XXXXXX XXX X XXX XXXXXX XXXXXXXXX XXX XXX XX XXX X",
+ "X XXX XXXXX XXXXX XXXXX XXX XX XXX XXX XXXXXX XXXX XXXX X",
+ "X XXX XXXXX XXXX XXXXXXXXX XX XXXXXX XX XXX XXXX XXXX XXX XXXXXX X",
+ "X XXX XXXXX XXX XXXXXX XXX XXXXX XXXXXXX XX XXX XXXX XXXX XXX XXXXX XX",
+ "XX XXXXXX XXX XXX XXXXXX XXX XXXX XXXXX XXXXX XXXX XXX"
+};
+
+KisRuler::KisRuler(Qt::Orientation o, TQWidget *tqparent, const char *name) : super(tqparent, name, WRepaintNoErase | WResizeNoErase), m_pixmapNums(m_nums)
+{
+ setBackgroundMode(NoBackground);
+ setFrameStyle(Box | Sunken);
+ setLineWidth(1);
+ setMidLineWidth(0);
+ m_orientation = o;
+ m_unit = KoUnit::U_PT;
+ m_zoom = 1.0;
+ m_firstVisible = 0;
+ m_pixmapBuffer = 0;
+ m_currentPosition = -1;
+
+ if (m_orientation == Qt::Horizontal) {
+ setFixedHeight(RULER_THICKNESS);
+ initMarker(MARKER_WIDTH, MARKER_HEIGHT);
+ } else {
+ setFixedWidth(RULER_THICKNESS);
+ initMarker(MARKER_HEIGHT, MARKER_WIDTH);
+ }
+}
+
+KisRuler::~KisRuler()
+{
+ delete m_pixmapBuffer;
+}
+
+void KisRuler::initMarker(TQ_INT32 w, TQ_INT32 h)
+{
+ TQPainter p;
+
+ m_pixmapMarker.resize(w, h);
+ p.begin(&m_pixmapMarker);
+ p.setPen(blue);
+ p.eraseRect(0, 0, w, h);
+ p.drawLine(0, 0, w - 1, h - 1);
+ p.end();
+}
+
+void KisRuler::recalculateSize()
+{
+ TQ_INT32 w;
+ TQ_INT32 h;
+
+ if (m_pixmapBuffer) {
+ delete m_pixmapBuffer;
+ m_pixmapBuffer = 0;
+ }
+
+ if (m_orientation == Qt::Horizontal) {
+ w = width();
+ h = RULER_THICKNESS;
+ } else {
+ w = RULER_THICKNESS;
+ h = height();
+ }
+
+ m_pixmapBuffer = new TQPixmap(w, h);
+ Q_CHECK_PTR(m_pixmapBuffer);
+
+ drawRuler();
+ updatePointer(m_currentPosition, m_currentPosition);
+}
+
+KoUnit::Unit KisRuler::unit() const
+{
+ return m_unit;
+}
+
+void KisRuler::setUnit(KoUnit::Unit u)
+{
+ m_unit = u;
+ drawRuler();
+ updatePointer(m_currentPosition, m_currentPosition);
+ update();
+}
+
+void KisRuler::setZoom(double zoom)
+{
+ m_zoom = zoom;
+ recalculateSize();
+ drawRuler();
+ updatePointer(m_currentPosition, m_currentPosition);
+ update();
+}
+
+void KisRuler::updatePointer(TQ_INT32 x, TQ_INT32 y)
+{
+ if (m_pixmapBuffer) {
+ if (m_orientation == Qt::Horizontal) {
+ if (m_currentPosition != -1)
+ tqrepaint(m_currentPosition, 1, MARKER_WIDTH, MARKER_HEIGHT);
+
+ if (x != -1) {
+ bitBlt(this, x, 1, &m_pixmapMarker, 0, 0, MARKER_WIDTH, MARKER_HEIGHT);
+ m_currentPosition = x;
+ }
+ } else {
+ if (m_currentPosition != -1)
+ tqrepaint(1, m_currentPosition, MARKER_HEIGHT, MARKER_WIDTH);
+
+ if (y != -1) {
+ bitBlt(this, 1, y, &m_pixmapMarker, 0, 0, MARKER_HEIGHT, MARKER_WIDTH);
+ m_currentPosition = y;
+ }
+ }
+ }
+}
+
+void KisRuler::updateVisibleArea(TQ_INT32 xpos, TQ_INT32 ypos)
+{
+ if (m_orientation == Qt::Horizontal)
+ m_firstVisible = xpos;
+ else
+ m_firstVisible = ypos;
+
+ drawRuler();
+ update();
+ updatePointer(m_currentPosition, m_currentPosition);
+}
+
+void KisRuler::paintEvent(TQPaintEvent *e)
+{
+ if (m_pixmapBuffer) {
+ const TQRect& rect = e->rect();
+
+ bitBlt(this, rect.topLeft(), m_pixmapBuffer, rect);
+ super::paintEvent(e);
+ }
+}
+
+void KisRuler::drawRuler()
+{
+ TQPainter p;
+ TQString buf;
+ TQ_INT32 st1 = 0;
+ TQ_INT32 st2 = 0;
+ TQ_INT32 st3 = 0;
+ TQ_INT32 st4 = 0;
+
+ if (!m_pixmapBuffer)
+ return;
+
+ p.begin(m_pixmapBuffer);
+ p.setPen(tqcolorGroup().text());
+ p.setBackgroundColor(tqcolorGroup().base());
+ p.eraseRect(0, 0, m_pixmapBuffer->width(), m_pixmapBuffer->height());
+
+ switch (m_unit) {
+ case KoUnit::U_PT:
+ case KoUnit::U_MM:
+ case KoUnit::U_DD:
+ case KoUnit::U_CC:
+ st1 = 1;
+ st2 = 5;
+ st3 = 10;
+ st4 = 25;
+ break;
+ case KoUnit::U_CM:
+ case KoUnit::U_PI:
+ case KoUnit::U_INCH:
+ default:
+ st1 = 1;
+ st2 = 2;
+ st3 = 5;
+ st4 = 10;
+ }
+
+ bool s1 = KoUnit::fromUserValue(st1, m_unit) * m_zoom > 3.0;
+ bool s2 = KoUnit::fromUserValue(st2, m_unit) * m_zoom > 3.0;
+ bool s3 = KoUnit::fromUserValue(st3, m_unit) * m_zoom > 3.0;
+ bool s4 = KoUnit::fromUserValue(st4, m_unit) * m_zoom > 3.0;
+
+ float cx = KoUnit::fromUserValue(100, m_unit) / m_zoom;
+ TQ_INT32 step = tqRound(cx);
+
+ if (step < 5) {
+ step = 1;
+ } else if (step < 10) {
+ step = 5;
+ } else if (step < 25) {
+ step = 10;
+ } else if (step < 50) {
+ step = 25;
+ } else if (step < 100) {
+ step = 50;
+ } else if (step < 250) {
+ step = 100;
+ } else if (step < 500) {
+ step = 250;
+ } else if (step < 1000) {
+ step = 500;
+ } else if (step < 2500) {
+ step = 1000;
+ } else if (step < 5000) {
+ step = 2500;
+ } else if (step < 10000) {
+ step = 5000;
+ } else if (step < 25000) {
+ step = 10000;
+ } else if (step < 50000) {
+ step = 25000;
+ } else if (step < 100000) {
+ step = 50000;
+ } else {
+ step = 100000;
+ }
+
+ TQ_INT32 start = (TQ_INT32)(KoUnit::fromUserValue(m_firstVisible, m_unit) / m_zoom);
+ TQ_INT32 pos = 0;
+
+ if (m_orientation == Qt::Horizontal) {
+ do {
+ pos = (TQ_INT32)(KoUnit::fromUserValue(start, m_unit) * m_zoom - m_firstVisible);
+
+ if (!s3 && s4 && start % st4 == 0)
+ p.drawLine(pos, RULER_THICKNESS - 9, pos, RULER_THICKNESS);
+
+ if (s3 && start % st3 == 0)
+ p.drawLine(pos, RULER_THICKNESS - 9, pos, RULER_THICKNESS);
+
+ if (s2 && start % st2 == 0)
+ p.drawLine(pos, RULER_THICKNESS - 7, pos, RULER_THICKNESS);
+
+ if (s1 && start % st1 == 0)
+ p.drawLine(pos, RULER_THICKNESS - 5, pos, RULER_THICKNESS);
+
+ if (start % step == 0) {
+ buf.setNum(TQABS(start));
+ drawNums(&p, pos, 4, buf, true);
+ }
+
+ start++;
+ } while (pos < m_pixmapBuffer->width());
+ } else {
+ do {
+ pos = (TQ_INT32)(KoUnit::fromUserValue(start, m_unit) * m_zoom - m_firstVisible);
+
+ if (!s3 && s4 && start % st4 == 0)
+ p.drawLine(RULER_THICKNESS - 9, pos, RULER_THICKNESS, pos);
+
+ if (s3 && start % st3 == 0)
+ p.drawLine(RULER_THICKNESS - 9, pos, RULER_THICKNESS, pos);
+
+ if (s2 && start % st2 == 0)
+ p.drawLine(RULER_THICKNESS - 7, pos, RULER_THICKNESS, pos);
+
+ if (s1 && start % st1 == 0)
+ p.drawLine(RULER_THICKNESS - 5, pos, RULER_THICKNESS, pos);
+
+ if (start % step == 0) {
+ buf.setNum(TQABS(start));
+ drawNums(&p, 4, pos, buf, false);
+ }
+
+ start++;
+ } while (pos < m_pixmapBuffer->height());
+ }
+
+ p.end();
+}
+
+void KisRuler::resizeEvent(TQResizeEvent *)
+{
+ recalculateSize();
+}
+
+void KisRuler::styleChange(TQStyle& oldStyle)
+{
+ Q_UNUSED(oldStyle);
+ updateGeometry();
+ drawRuler();
+}
+
+void KisRuler::paletteChange(const TQPalette& oldPalette)
+{
+ Q_UNUSED(oldPalette);
+ drawRuler();
+}
+
+void KisRuler::show()
+{
+ if (m_orientation == Qt::Horizontal) {
+ setFixedHeight(RULER_THICKNESS);
+ initMarker(MARKER_WIDTH, MARKER_HEIGHT);
+ } else {
+ setFixedWidth(RULER_THICKNESS);
+ initMarker(MARKER_HEIGHT, MARKER_WIDTH);
+ }
+
+ super::show();
+}
+
+void KisRuler::hide()
+{
+ /*
+ if (m_orientation == Qt::Horizontal)
+ setFixedHeight(1);
+ else
+ setFixedWidth(1);
+ */
+ super::hide();
+}
+
+void KisRuler::drawNums(TQPainter *p, TQ_INT32 x, TQ_INT32 y, TQString& num, bool orientationHoriz)
+{
+ if (orientationHoriz)
+ x -= 7;
+ else
+ y -= 8;
+
+ for (TQ_UINT32 k = 0; k < num.length(); k++) {
+ TQ_INT32 st = num.at(k).digitValue() * 7;
+
+ p->drawPixmap(x, y, m_pixmapNums, st, 0, 7, 7);
+
+ if (orientationHoriz)
+ x += 7;
+ else
+ y += 8;
+ }
+}
+
+#include "kis_ruler.moc"
+
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