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850 lines
19 KiB
850 lines
19 KiB
/*
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* Copyright (c) 2005 Adrian Page <adrian@pagenet.plus.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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.g
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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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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#ifdef HAVE_GL
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#include <kdebug.h>
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#include "kis_canvas.h"
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#include "kis_canvas_painter.h"
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#include "kis_opengl_canvas_painter.h"
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KisOpenGLCanvasPainter::KisOpenGLCanvasPainter()
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: m_active(false), m_widget(0)
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{
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}
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KisOpenGLCanvasPainter::KisOpenGLCanvasPainter(TQGLWidget *widget)
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: m_active(true), m_widget(widget)
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{
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prepareForDrawing();
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}
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KisOpenGLCanvasPainter::~KisOpenGLCanvasPainter()
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{
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if (m_widget) {
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if (m_active) {
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end();
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}
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m_widget->doneCurrent();
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}
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}
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bool KisOpenGLCanvasPainter::begin(KisCanvasWidget *canvasWidget, bool /*unclipped*/)
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{
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m_widget = dynamic_cast<TQGLWidget *>(canvasWidget);
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if (m_widget != 0) {
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prepareForDrawing();
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return true;
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} else {
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return false;
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}
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return false;
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}
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void KisOpenGLCanvasPainter::prepareForDrawing()
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{
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if (m_widget != 0) {
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m_widget->makeCurrent();
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m_active = true;
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save();
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glDrawBuffer(GL_FRONT);
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glBlendFunc(GL_ONE_MINUS_DST_COLOR, GL_ZERO);
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glEnable(GL_BLEND);
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glMatrixMode(GL_TEXTURE);
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glLoadIdentity();
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m_window = TQRect(0, 0, m_widget->width(), m_widget->height());
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m_viewport = m_window;
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updateViewTransformation();
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glMatrixMode(GL_MODELVIEW);
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glLoadIdentity();
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setPen(m_defaultPen);
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}
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}
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void KisOpenGLCanvasPainter::updateViewTransformation()
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{
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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// We don't set the GL viewport directly from the TQt one as the GL
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// has a limited size. Instead we fold it into the projection matrix.
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glViewport(0, 0, m_widget->width(), m_widget->height());
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glOrtho(0, m_widget->width(), m_widget->height(), 0, -1, 1);
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glTranslatef(m_viewport.x(), m_viewport.y(), 0.0);
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glScalef(static_cast<float>(m_viewport.width()) / m_window.width(),
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static_cast<float>(m_viewport.height()) / m_window.height(),
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1.0);
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glTranslatef(-m_window.x(), -m_window.y(), 0.0);
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}
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bool KisOpenGLCanvasPainter::end()
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{
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if (m_active) {
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restore();
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m_active = false;
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return true;
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} else {
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return false;
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}
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}
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void KisOpenGLCanvasPainter::save()
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{
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glPushAttrib(GL_ALL_ATTRIB_BITS);
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glMatrixMode(GL_PROJECTION);
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glPushMatrix();
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glMatrixMode(GL_MODELVIEW);
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glPushMatrix();
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glMatrixMode(GL_TEXTURE);
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glPushMatrix();
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}
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void KisOpenGLCanvasPainter::restore()
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{
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glPopAttrib();
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glMatrixMode(GL_PROJECTION);
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glPopMatrix();
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glMatrixMode(GL_MODELVIEW);
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glPopMatrix();
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glMatrixMode(GL_TEXTURE);
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glPopMatrix();
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}
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void KisOpenGLCanvasPainter::setPenStyle(TQt::PenStyle penStyle)
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{
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if (penStyle == TQt::SolidLine) {
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glDisable(GL_LINE_STIPPLE);
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} else {
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GLushort lineStipple;
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switch (penStyle) {
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case TQt::NoPen:
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lineStipple = 0;
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break;
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default:
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case TQt::DashLine:
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lineStipple = 0x3fff;
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break;
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case TQt::DotLine:
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lineStipple = 0x3333;
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break;
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case TQt::DashDotLine:
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lineStipple = 0x33ff;
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break;
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case TQt::DashDotDotLine:
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lineStipple = 0x333f;
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break;
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}
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glEnable(GL_LINE_STIPPLE);
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glLineStipple(1, lineStipple);
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}
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}
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TQFontMetrics KisOpenGLCanvasPainter::fontMetrics() const
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{
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return TQFontMetrics(TQFont());
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}
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TQFontInfo KisOpenGLCanvasPainter::fontInfo() const
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{
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return TQFontInfo(TQFont());
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}
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const TQFont& KisOpenGLCanvasPainter::font() const
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{
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return m_defaultFont;
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}
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void KisOpenGLCanvasPainter::setFont(const TQFont& /*font*/)
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{
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}
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const TQPen& KisOpenGLCanvasPainter::pen() const
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{
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return m_defaultPen;
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}
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void KisOpenGLCanvasPainter::setPen(const TQPen& pen)
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{
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setPenStyle(pen.style());
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}
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void KisOpenGLCanvasPainter::setPen(TQt::PenStyle penStyle)
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{
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setPenStyle(penStyle);
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}
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void KisOpenGLCanvasPainter::setPen(const TQColor& /*color*/)
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{
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}
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const TQBrush& KisOpenGLCanvasPainter::brush() const
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{
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return m_defaultBrush;
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}
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void KisOpenGLCanvasPainter::setBrush(const TQBrush& /*brush*/)
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{
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}
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void KisOpenGLCanvasPainter::setBrush(TQt::BrushStyle /*brushStyle*/)
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{
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}
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void KisOpenGLCanvasPainter::setBrush(const TQColor& /*color*/)
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{
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}
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TQPoint KisOpenGLCanvasPainter::pos() const
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{
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return TQPoint();
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}
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const TQColor& KisOpenGLCanvasPainter::backgroundColor() const
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{
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return m_defaultColor;
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}
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void KisOpenGLCanvasPainter::setBackgroundColor(const TQColor& /*color*/)
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{
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}
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TQt::BGMode KisOpenGLCanvasPainter::backgroundMode() const
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{
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return TQt::TransparentMode;
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}
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void KisOpenGLCanvasPainter::setBackgroundMode(TQt::BGMode /*bgMode*/)
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{
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}
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TQt::TQt::RasterOp KisOpenGLCanvasPainter::rasterOp() const
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{
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return TQt::CopyROP;
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}
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void KisOpenGLCanvasPainter::setRasterOp(TQt::RasterOp /*rasterOp*/)
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{
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}
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const TQPoint& KisOpenGLCanvasPainter::brushOrigin() const
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{
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return m_defaultBrushOrigin;
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}
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void KisOpenGLCanvasPainter::setBrushOrigin(int /*x*/, int /*y*/)
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{
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}
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void KisOpenGLCanvasPainter::setBrushOrigin(const TQPoint& /*origin*/)
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{
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}
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bool KisOpenGLCanvasPainter::hasViewXForm() const
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{
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return false;
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}
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bool KisOpenGLCanvasPainter::hasWorldXForm() const
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{
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return false;
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}
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void KisOpenGLCanvasPainter::setViewXForm(bool /*enable*/)
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{
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}
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TQRect KisOpenGLCanvasPainter::window() const
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{
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return m_window;
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}
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void KisOpenGLCanvasPainter::setWindow(const TQRect& r)
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{
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m_window = r;
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updateViewTransformation();
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}
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void KisOpenGLCanvasPainter::setWindow(int x, int y, int w, int h)
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{
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setWindow(TQRect(x, y, w, h));
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}
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TQRect KisOpenGLCanvasPainter::viewport() const
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{
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return m_viewport;
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}
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void KisOpenGLCanvasPainter::setViewport(const TQRect& r)
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{
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m_viewport = r;
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updateViewTransformation();
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}
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void KisOpenGLCanvasPainter::setViewport(int x, int y, int w, int h)
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{
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setViewport(TQRect(x, y, w, h));
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}
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void KisOpenGLCanvasPainter::setWorldXForm(bool /*enable*/)
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{
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}
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const TQWMatrix& KisOpenGLCanvasPainter::worldMatrix() const
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{
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return m_defaultWorldMatrix;
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}
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void KisOpenGLCanvasPainter::setWorldMatrix(const TQWMatrix& /*matrix*/, bool /*combine*/)
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{
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}
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void KisOpenGLCanvasPainter::saveWorldMatrix()
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{
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}
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void KisOpenGLCanvasPainter::restoreWorldMatrix()
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{
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}
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void KisOpenGLCanvasPainter::scale(double /*sx*/, double /*sy*/)
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{
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}
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void KisOpenGLCanvasPainter::shear(double /*sh*/, double /*sv*/)
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{
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}
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void KisOpenGLCanvasPainter::rotate(double /*a*/)
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{
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}
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void KisOpenGLCanvasPainter::translate(double dx, double dy)
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{
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glMatrixMode(GL_MODELVIEW);
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glTranslated(dx, dy, 0.0);
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}
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void KisOpenGLCanvasPainter::resetXForm()
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{
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}
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double KisOpenGLCanvasPainter::translationX() const
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{
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return 0;
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}
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double KisOpenGLCanvasPainter::translationY() const
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{
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return 0;
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}
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TQPoint KisOpenGLCanvasPainter::xForm(const TQPoint& point) const
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{
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return point;
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}
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TQRect KisOpenGLCanvasPainter::xForm(const TQRect& r) const
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{
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return r;
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}
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TQPointArray KisOpenGLCanvasPainter::xForm(const TQPointArray& pointArray) const
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{
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return pointArray;
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}
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TQPointArray KisOpenGLCanvasPainter::xForm(const TQPointArray& pointArray, int /*index*/, int /*npoints*/) const
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{
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return pointArray;
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}
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TQPoint KisOpenGLCanvasPainter::xFormDev(const TQPoint& point) const
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{
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return point;
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}
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TQRect KisOpenGLCanvasPainter::xFormDev(const TQRect& r) const
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{
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return r;
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}
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TQPointArray KisOpenGLCanvasPainter::xFormDev(const TQPointArray& pointArray) const
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{
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return pointArray;
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}
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TQPointArray KisOpenGLCanvasPainter::xFormDev(const TQPointArray& pointArray, int /*index*/, int /*npoints*/) const
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{
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return pointArray;
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}
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void KisOpenGLCanvasPainter::setClipping(bool /*enable*/)
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{
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}
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bool KisOpenGLCanvasPainter::hasClipping() const
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{
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return true;
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}
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TQRegion KisOpenGLCanvasPainter::clipRegion(TQPainter::CoordinateMode /*mode*/) const
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{
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return TQRegion();
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}
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void KisOpenGLCanvasPainter::setClipRect(const TQRect& /*r*/, TQPainter::CoordinateMode /*mode*/)
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{
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}
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void KisOpenGLCanvasPainter::setClipRect(int /*x*/, int /*y*/, int /*w*/, int /*h*/, TQPainter::CoordinateMode /*mode*/)
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{
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}
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void KisOpenGLCanvasPainter::setClipRegion(const TQRegion& /*rgn*/, TQPainter::CoordinateMode /*mode*/)
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{
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}
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void KisOpenGLCanvasPainter::drawPoint(int x, int y)
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{
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glBegin(GL_POINTS);
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glVertex2i(x, y);
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glEnd();
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}
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void KisOpenGLCanvasPainter::drawPoint(const TQPoint& point)
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{
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drawPoint(point.x(), point.y());
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}
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void KisOpenGLCanvasPainter::drawPoints(const TQPointArray& pointArray, int index, int npoints)
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{
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int firstPointIndex = index;
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if (firstPointIndex < 0) {
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firstPointIndex = 0;
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}
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if (firstPointIndex > (int)pointArray.count() - 1) {
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return;
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}
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int lastPointIndex;
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if (npoints < 0) {
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lastPointIndex = pointArray.count() - 1;
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} else {
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lastPointIndex = firstPointIndex + npoints;
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if (lastPointIndex > (int)pointArray.count() - 1) {
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lastPointIndex = pointArray.count() - 1;
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}
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}
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glBegin(GL_POINTS);
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for (int pointIndex = firstPointIndex; pointIndex <= lastPointIndex; pointIndex++) {
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TQPoint point = pointArray.point(pointIndex);
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glVertex2i(point.x(), point.y());
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}
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glEnd();
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}
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void KisOpenGLCanvasPainter::moveTo(int /*x*/, int /*y*/)
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{
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}
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void KisOpenGLCanvasPainter::moveTo(const TQPoint& /*point*/)
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{
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}
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void KisOpenGLCanvasPainter::lineTo(int /*x*/, int /*y*/)
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{
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}
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void KisOpenGLCanvasPainter::lineTo(const TQPoint& /*point*/)
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{
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}
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void KisOpenGLCanvasPainter::drawLine(int x1, int y1, int x2, int y2)
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{
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glBegin(GL_LINES);
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glVertex2i(x1, y1);
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glVertex2i(x2, y2);
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glEnd();
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}
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void KisOpenGLCanvasPainter::drawLine(const TQPoint& start, const TQPoint& end)
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{
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drawLine(start.x(), start.y(), end.x(), end.y());
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}
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void KisOpenGLCanvasPainter::drawRect(int x, int y, int w, int h)
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{
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glBegin(GL_LINES);
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glVertex2i(x, y);
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glVertex2i(x + w - 1, y);
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glVertex2i(x + w - 1, y);
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glVertex2i(x + w - 1, y + h - 1);
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glVertex2i(x + w - 1, y + h - 1);
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glVertex2i(x, y + h - 1);
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glVertex2i(x, y + h - 1);
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glVertex2i(x, y);
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glEnd();
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}
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void KisOpenGLCanvasPainter::drawRect(const TQRect& r)
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{
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drawRect(r.x(), r.y(), r.width(), r.height());
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}
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void KisOpenGLCanvasPainter::drawWinFocusRect(int /*x*/, int /*y*/, int /*w*/, int /*h*/)
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{
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}
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void KisOpenGLCanvasPainter::drawWinFocusRect(int /*x*/, int /*y*/, int /*w*/, int /*h*/, const TQColor& /*bgColor*/)
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{
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}
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void KisOpenGLCanvasPainter::drawWinFocusRect(const TQRect& /*r*/)
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{
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}
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void KisOpenGLCanvasPainter::drawWinFocusRect(const TQRect& /*r*/, const TQColor& /*bgColor*/)
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{
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}
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void KisOpenGLCanvasPainter::drawRoundRect(int x, int y, int w, int h, int /*xRnd*/, int /*yRnd*/)
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{
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glBegin(GL_LINES);
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glVertex2i(x, y);
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glVertex2i(x + w - 1, y);
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glVertex2i(x + w - 1, y);
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glVertex2i(x + w - 1, y + h - 1);
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glVertex2i(x + w - 1, y + h - 1);
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glVertex2i(x, y + h - 1);
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glVertex2i(x, y + h - 1);
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glVertex2i(x, y);
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glEnd();
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}
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void KisOpenGLCanvasPainter::drawRoundRect(const TQRect& r, int /*xRnd*/, int /*yRnd*/)
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{
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drawRoundRect(r.x(), r.y(), r.width(), r.height());
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}
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// void KisOpenGLCanvasPainter::drawRoundRect(int /*x*/, int /*y*/, int /*w*/, int /*h*/, int /*xRnd*/, int /*yRnd*/)
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// {
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// }
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//
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// void KisOpenGLCanvasPainter::drawRoundRect(const TQRect& /*r*/, int /*xRnd*/, int /*yRnd*/)
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// {
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// }
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void KisOpenGLCanvasPainter::drawEllipse(int x, int y, int w, int h)
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{
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TQRect r(x, y, w, h);
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r = r.normalize();
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TQPointArray points;
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points.makeEllipse(r.x(), r.y(), r.width(), r.height());
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drawPoints(points);
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}
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void KisOpenGLCanvasPainter::drawEllipse(const TQRect& r)
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{
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drawEllipse(r.x(), r.y(), r.width(), r.height());
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}
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void KisOpenGLCanvasPainter::drawArc(int /*x*/, int /*y*/, int /*w*/, int /*h*/, int /*a*/, int /*alen*/)
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{
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}
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void KisOpenGLCanvasPainter::drawArc(const TQRect& /*r*/, int /*a*/, int /*alen*/)
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{
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}
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void KisOpenGLCanvasPainter::drawPie(int /*x*/, int /*y*/, int /*w*/, int /*h*/, int /*a*/, int /*alen*/)
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{
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}
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void KisOpenGLCanvasPainter::drawPie(const TQRect& /*r*/, int /*a*/, int /*alen*/)
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{
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}
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void KisOpenGLCanvasPainter::drawChord(int /*x*/, int /*y*/, int /*w*/, int /*h*/, int /*a*/, int /*alen*/)
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{
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}
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void KisOpenGLCanvasPainter::drawChord(const TQRect& /*r*/, int /*a*/, int /*alen*/)
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{
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}
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void KisOpenGLCanvasPainter::drawLineSegments(const TQPointArray& /*pointArray*/, int /*index*/, int /*nlines*/)
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{
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}
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void KisOpenGLCanvasPainter::drawPolyline(const TQPointArray& pointArray, int index, int npoints)
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{
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int firstPointIndex = index;
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if (firstPointIndex < 0) {
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firstPointIndex = 0;
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}
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if (firstPointIndex > (int)pointArray.count() - 2) {
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return;
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}
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int lastPointIndex;
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if (npoints < 0) {
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lastPointIndex = pointArray.count() - 1;
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} else {
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lastPointIndex = firstPointIndex + npoints - 1;
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if (lastPointIndex > (int)pointArray.count() - 1) {
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lastPointIndex = pointArray.count() - 1;
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}
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}
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if (firstPointIndex >= lastPointIndex) {
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return;
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}
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glBegin(GL_LINES);
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for (int pointIndex = firstPointIndex; pointIndex <= lastPointIndex; pointIndex++) {
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TQPoint point = pointArray.point(pointIndex);
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glVertex2i(point.x(), point.y());
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}
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glEnd();
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}
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void KisOpenGLCanvasPainter::drawPolygon(const TQPointArray& /*pointArray*/, bool /*winding*/, int /*index*/, int /*npoints*/)
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{
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}
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void KisOpenGLCanvasPainter::drawConvexPolygon(const TQPointArray& /*pointArray*/, int /*index*/, int /*npoints*/)
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{
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}
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TQPoint midpoint (const TQPoint& P1, const TQPoint& P2)
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{
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TQPoint temp;
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temp.setX((P1.x()+P2.x())/2);
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temp.setY((P1.y()+P2.y())/2);
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return temp;
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}
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#define MAX_LEVEL 5
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void recursiveCurve (const TQPoint& P1, const TQPoint& P2, const TQPoint& P3,
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const TQPoint& P4, int level, TQValueList<TQPoint>& dest)
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{
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if (level > MAX_LEVEL) {
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dest.append(midpoint(P1,P4));
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return;
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}
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TQPoint L1, L2, L3, L4;
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TQPoint H, R1, R2, R3, R4;
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L1 = P1;
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L2 = midpoint(P1, P2);
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H = midpoint(P2, P3);
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R3 = midpoint(P3, P4);
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R4 = P4;
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L3 = midpoint(L2, H);
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R2 = midpoint(R3, H);
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L4 = midpoint(L3, R2);
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R1 = L4;
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recursiveCurve(L1, L2, L3, L4, level + 1, dest);
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recursiveCurve(R1, R2, R3, R4, level + 1, dest);
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}
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void KisOpenGLCanvasPainter::drawCubicBezier(const TQPointArray& pointArray, int index)
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{
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TQPoint P1, P2, P3, P4;
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TQValueList<TQPoint> dest;
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P1 = pointArray[index++];
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P2 = pointArray[index++];
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P3 = pointArray[index++];
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P4 = pointArray[index];
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recursiveCurve(P1, P2, P3, P4, 1, dest);
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glBegin(GL_LINE_STRIP);
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glVertex2i(P1.x(), P1.y());
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for (TQValueList<TQPoint>::iterator it = dest.begin(); it != dest.end(); it++) {
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TQPoint point = (*it);
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glVertex2i(point.x(), point.y());
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}
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glVertex2i(P4.x(), P4.y());
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glEnd();
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}
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void KisOpenGLCanvasPainter::drawPixmap(int /*x*/, int /*y*/, const TQPixmap& /*pixmap*/, int /*sx*/, int /*sy*/, int /*sw*/, int /*sh*/)
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{
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}
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void KisOpenGLCanvasPainter::drawPixmap(const TQPoint& /*point*/, const TQPixmap& /*pixmap*/, const TQRect& /*sr*/)
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{
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}
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void KisOpenGLCanvasPainter::drawPixmap(const TQPoint& /*point*/, const TQPixmap& /*pixmap*/)
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{
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}
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void KisOpenGLCanvasPainter::drawPixmap(const TQRect& /*r*/, const TQPixmap& /*pixmap*/)
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{
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}
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void KisOpenGLCanvasPainter::drawImage(int /*x*/, int /*y*/, const TQImage& /*image*/, int /*sx*/, int /*sy*/, int /*sw*/, int /*sh*/, int /*conversionFlags*/)
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{
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}
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void KisOpenGLCanvasPainter::drawImage(const TQPoint& /*point*/, const TQImage& /*image*/, const TQRect& /*sr*/, int /*conversionFlags*/)
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{
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}
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void KisOpenGLCanvasPainter::drawImage(const TQPoint& /*point*/, const TQImage& /*image*/, int /*conversion_flags*/)
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{
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}
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void KisOpenGLCanvasPainter::drawImage(const TQRect& /*r*/, const TQImage& /*image*/)
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{
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}
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void KisOpenGLCanvasPainter::drawTiledPixmap(int /*x*/, int /*y*/, int /*w*/, int /*h*/, const TQPixmap& /*pixmap*/, int /*sx*/, int /*sy*/)
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{
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}
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void KisOpenGLCanvasPainter::drawTiledPixmap(const TQRect& /*r*/, const TQPixmap& /*pixmap*/, const TQPoint& /*point*/)
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{
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}
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void KisOpenGLCanvasPainter::drawTiledPixmap(const TQRect& /*r*/, const TQPixmap& /*pixmap*/)
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{
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}
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void KisOpenGLCanvasPainter::fillRect(int x, int y, int w, int h, const TQBrush& /*brush*/)
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{
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// XXX: Set brush
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glRecti(x, y, x + w, y + h);
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}
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void KisOpenGLCanvasPainter::fillRect(const TQRect& r, const TQBrush& brush)
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{
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fillRect(r.x(), r.y(), r.width(), r.height(), brush);
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}
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void KisOpenGLCanvasPainter::eraseRect(int /*x*/, int /*y*/, int /*w*/, int /*h*/)
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{
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}
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void KisOpenGLCanvasPainter::eraseRect(const TQRect& /*r*/)
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{
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}
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void KisOpenGLCanvasPainter::drawText(int /*x*/, int /*y*/, const TQString& /*text*/, int /*len*/, TQPainter::TextDirection /*dir*/)
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{
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}
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void KisOpenGLCanvasPainter::drawText(const TQPoint& /*point*/, const TQString& /*text*/, int /*len*/, TQPainter::TextDirection /*dir*/)
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{
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}
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void KisOpenGLCanvasPainter::drawText(int /*x*/, int /*y*/, const TQString& /*text*/, int /*pos*/, int /*len*/, TQPainter::TextDirection /*dir*/)
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{
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}
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void KisOpenGLCanvasPainter::drawText(const TQPoint& /*point*/, const TQString& /*text*/, int /*pos*/, int /*len*/, TQPainter::TextDirection /*dir*/)
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{
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}
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void KisOpenGLCanvasPainter::drawText(int /*x*/, int /*y*/, int /*w*/, int /*h*/, int /*flags*/, const TQString& /*text*/, int /*len*/, TQRect */*br*/, TQTextParag **/*intern*/)
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{
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}
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void KisOpenGLCanvasPainter::drawText(const TQRect& /*r*/, int /*flags*/, const TQString& /*text*/, int /*len*/, TQRect */*br*/, TQTextParag **/*intern*/)
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{
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}
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void KisOpenGLCanvasPainter::drawTextItem(int /*x*/, int /*y*/, const TQTextItem& /*ti*/, int /*textflags*/)
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{
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}
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void KisOpenGLCanvasPainter::drawTextItem(const TQPoint& /*p*/, const TQTextItem& /*ti*/, int /*textflags*/)
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{
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}
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TQRect KisOpenGLCanvasPainter::boundingRect(int /*x*/, int /*y*/, int /*w*/, int /*h*/, int /*flags*/, const TQString& /*text*/, int /*len*/, TQTextParag **/*intern*/)
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{
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return TQRect();
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}
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TQRect KisOpenGLCanvasPainter::boundingRect(const TQRect& /*r*/, int /*flags*/, const TQString& /*text*/, int /*len*/, TQTextParag **/*intern*/)
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{
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return TQRect();
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}
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int KisOpenGLCanvasPainter::tabStops() const
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{
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return 0;
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}
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void KisOpenGLCanvasPainter::setTabStops(int /*ts*/)
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{
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}
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int *KisOpenGLCanvasPainter::tabArray() const
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{
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return 0;
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}
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void KisOpenGLCanvasPainter::setTabArray(int */*ts*/)
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{
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}
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#endif // HAVE_GL
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