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333 lines
8.9 KiB
333 lines
8.9 KiB
15 years ago
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/*
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* Kivio - Visual Modelling and Flowcharting
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* Copyright (C) 2000-2001 theKompany.com & Dave Marotti
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* Copyright (C) 2002 Patrick Julien <freak@codepimps.org>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <qpainter.h>
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#include "kdebug.h"
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#include "vruler.h"
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#define MARKER_WIDTH 1
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#define MARKER_HEIGHT 20
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#define RULER_SIZE 20
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const char *VRuler::m_nums[] = {
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"70 7 2 1",
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" c Black",
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"X c None",
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"XX XXXXXX XXXX XXXX XXXXXX XXX XXXX XXX XXX XXXX XX",
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"X XXX XXXX XXX XXX XX XXX XXXX XXX XXXXXXX XXXXXXXXX XX XXX XX XXX X",
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"X XXX XXXXX XXXXXXX XXXXXX XXX X XXX XXXXXX XXXXXXXXX XXX XXX XX XXX X",
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"X XXX XXXXX XXXXX XXXXX XXX XX XXX XXX XXXXXX XXXX XXXX X",
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"X XXX XXXXX XXXX XXXXXXXXX XX XXXXXX XX XXX XXXX XXXX XXX XXXXXX X",
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"X XXX XXXXX XXX XXXXXX XXX XXXXX XXXXXXX XX XXX XXXX XXXX XXX XXXXX XX",
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"XX XXXXXX XXX XXX XXXXXX XXX XXXX XXXXX XXXXX XXXX XXX"
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};
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VRuler::VRuler(Qt::Orientation o, QWidget *parent, const char *name) : super(parent, name, WRepaintNoErase | WResizeNoErase), m_pixmapNums(m_nums)
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{
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setBackgroundMode(NoBackground);
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setFrameStyle(Box | Sunken);
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setLineWidth(1);
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setMidLineWidth(0);
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m_orientation = o;
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m_unit = KoUnit::U_PT;
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m_zoom = 1.0;
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m_firstVisible = 0;
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m_pixmapBuffer = 0;
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m_currentPosition = -1;
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if (m_orientation == Qt::Horizontal) {
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setFixedHeight(RULER_SIZE);
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initMarker(MARKER_WIDTH, MARKER_HEIGHT);
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} else {
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setFixedWidth(RULER_SIZE);
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initMarker(MARKER_HEIGHT, MARKER_WIDTH);
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}
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}
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VRuler::~VRuler()
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{
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delete m_pixmapBuffer;
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}
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void VRuler::initMarker(Q_INT32 w, Q_INT32 h)
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{
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QPainter p;
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m_pixmapMarker.resize(w, h);
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p.begin(&m_pixmapMarker);
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p.setPen(blue);
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p.eraseRect(0, 0, w, h);
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p.drawLine(0, 0, w - 1, h - 1);
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p.end();
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}
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void VRuler::recalculateSize()
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{
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Q_INT32 w;
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Q_INT32 h;
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if (m_pixmapBuffer) {
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delete m_pixmapBuffer;
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m_pixmapBuffer = 0;
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}
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if (m_orientation == Qt::Horizontal) {
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w = width();
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h = RULER_SIZE;
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} else {
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w = RULER_SIZE;
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h = height();
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}
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m_pixmapBuffer = new QPixmap(w, h);
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Q_CHECK_PTR(m_pixmapBuffer);
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drawRuler();
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updatePointer(m_currentPosition, m_currentPosition);
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}
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KoUnit::Unit VRuler::unit() const
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{
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return m_unit;
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}
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void VRuler::setUnit(KoUnit::Unit u)
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{
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m_unit = u;
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drawRuler();
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updatePointer(m_currentPosition, m_currentPosition);
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repaint();
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}
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void VRuler::setZoom(double zoom)
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{
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m_zoom = zoom;
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recalculateSize();
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drawRuler();
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updatePointer(m_currentPosition, m_currentPosition);
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repaint();
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}
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void VRuler::updatePointer(Q_INT32 x, Q_INT32 y)
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{
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if (m_pixmapBuffer) {
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if (m_orientation == Qt::Horizontal) {
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if (m_currentPosition != -1)
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repaint(m_currentPosition, 1, MARKER_WIDTH, MARKER_HEIGHT);
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if (x != -1) {
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bitBlt(this, x, 1, &m_pixmapMarker, 0, 0, MARKER_WIDTH, MARKER_HEIGHT);
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m_currentPosition = x;
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}
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} else {
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if (m_currentPosition != -1)
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repaint(1, m_currentPosition, MARKER_HEIGHT, MARKER_WIDTH);
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if (y != -1) {
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bitBlt(this, 1, y, &m_pixmapMarker, 0, 0, MARKER_HEIGHT, MARKER_WIDTH);
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m_currentPosition = y;
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}
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}
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}
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}
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void VRuler::updateVisibleArea(Q_INT32 xpos, Q_INT32 ypos)
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{
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if (m_orientation == Qt::Horizontal)
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m_firstVisible = xpos;
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else
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m_firstVisible = ypos;
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//kdDebug() << "--###-- VRuler::updateVisibleArea(" << xpos << ", " << ypos << ")" << endl;
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drawRuler();
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repaint();
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updatePointer(m_currentPosition, m_currentPosition);
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//kdDebug() << "--###-- VRuler::updatePointer(" << m_currentPosition << ", " << m_currentPosition << ")" << endl;
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}
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void VRuler::paintEvent(QPaintEvent *e)
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{
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if (m_pixmapBuffer) {
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const QRect& rect = e -> rect();
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bitBlt(this, rect.topLeft(), m_pixmapBuffer, rect);
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super::paintEvent(e);
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}
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}
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void VRuler::drawRuler()
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{
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QPainter p;
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QString buf;
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Q_INT32 st1 = 0;
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Q_INT32 st2 = 0;
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Q_INT32 st3 = 0;
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Q_INT32 st4 = 0;
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Q_INT32 stt = 0;
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if (!m_pixmapBuffer)
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return;
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p.begin(m_pixmapBuffer);
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p.setPen(QColor(0x70, 0x70, 0x70));
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p.setBackgroundColor(colorGroup().background());
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p.eraseRect(0, 0, m_pixmapBuffer -> width(), m_pixmapBuffer -> height());
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switch (m_unit) {
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case KoUnit::U_PT:
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case KoUnit::U_MM:
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case KoUnit::U_DD:
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case KoUnit::U_CC:
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st1 = 1;
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st2 = 5;
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st3 = 10;
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st4 = 25;
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stt = 100;
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break;
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case KoUnit::U_CM:
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case KoUnit::U_PI:
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case KoUnit::U_INCH:
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st1 = 1;
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st2 = 2;
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st3 = 5;
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st4 = 10;
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stt = 1;
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break;
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default:
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break;
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}
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Q_INT32 pos = 0;
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bool s1 = KoUnit::fromUserValue(st1, m_unit) * m_zoom > 3.0;
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bool s2 = KoUnit::fromUserValue(st2, m_unit) * m_zoom > 3.0;
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bool s3 = KoUnit::fromUserValue(st3, m_unit) * m_zoom > 3.0;
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bool s4 = KoUnit::fromUserValue(st4, m_unit) * m_zoom > 3.0;
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if (m_orientation == Qt::Horizontal) {
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// XXX: This was 7 * 4 -- why? what was the idea about having 30 point intervals?
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float cx = KoUnit::fromUserValue(100, m_unit) / m_zoom;
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Q_INT32 step = qRound(cx);//((Q_INT32)(cx / (float)stt) + 1) * stt;
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Q_INT32 start = (Q_INT32)(KoUnit::toUserValue(m_firstVisible, m_unit) / m_zoom);
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do {
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pos = (Q_INT32)(KoUnit::fromUserValue(start, m_unit) * m_zoom - m_firstVisible);
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if (!s3 && s4 && start % st4 == 0)
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p.drawLine(pos, RULER_SIZE - 9, pos, RULER_SIZE);
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if (s3 && start % st3 == 0)
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p.drawLine(pos, RULER_SIZE - 9, pos, RULER_SIZE);
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if (s2 && start % st2 == 0)
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p.drawLine(pos, RULER_SIZE - 7, pos, RULER_SIZE);
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if (s1 && start % st1 == 0)
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p.drawLine(pos, RULER_SIZE - 5, pos, RULER_SIZE);
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if (step && start % step == 0) {
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buf.setNum(QABS(start));
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drawNums(&p, pos, 4, buf, true);
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}
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start++;
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} while (pos < m_pixmapBuffer -> width());
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} else {
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m_firstVisible = 0;
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float cx = KoUnit::fromUserValue(100, m_unit) / m_zoom;
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Q_INT32 height = m_pixmapBuffer -> height() - 1;
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Q_INT32 step = qRound(cx);
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Q_INT32 start = (Q_INT32)(KoUnit::toUserValue(m_firstVisible, m_unit) / m_zoom);
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do {
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pos = height - (Q_INT32)(KoUnit::fromUserValue(start, m_unit) * m_zoom - m_firstVisible);
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if (!s3 && s4 && start % st4 == 0)
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p.drawLine(RULER_SIZE - 9, pos, RULER_SIZE, pos);
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if (s3 && start % st3 == 0)
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p.drawLine(RULER_SIZE - 9, pos, RULER_SIZE, pos);
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if (s2 && start % st2 == 0)
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p.drawLine(RULER_SIZE - 7, pos, RULER_SIZE, pos);
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if (s1 && start % st1 == 0)
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p.drawLine(RULER_SIZE - 5, pos, RULER_SIZE, pos);
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if (step && start % step == 0) {
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buf.setNum(QABS(start));
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drawNums(&p, 4, pos, buf, false);
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}
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start++;
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} while (pos > 0);
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}
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p.end();
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}
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void VRuler::resizeEvent(QResizeEvent *)
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{
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recalculateSize();
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}
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void VRuler::show()
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{
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if (m_orientation == Qt::Horizontal) {
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setFixedHeight(RULER_SIZE);
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initMarker(MARKER_WIDTH, MARKER_HEIGHT);
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} else {
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setFixedWidth(RULER_SIZE);
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initMarker(MARKER_HEIGHT, MARKER_WIDTH);
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}
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super::show();
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}
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void VRuler::hide()
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{
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if (m_orientation == Qt::Horizontal)
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setFixedHeight(1);
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else
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setFixedWidth(1);
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}
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void VRuler::drawNums(QPainter *p, Q_INT32 x, Q_INT32 y, QString& num, bool orientationHoriz)
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{
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if (orientationHoriz)
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x -= 7;
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else
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y -= 8;
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for (Q_UINT32 k = 0; k < num.length(); k++) {
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Q_INT32 st = num.at(k).digitValue() * 7;
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p -> drawPixmap(x, y, m_pixmapNums, st, 0, 7, 7);
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if (orientationHoriz)
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x += 7;
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else
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y += 8;
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}
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}
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#include "vruler.moc"
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