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329 lines
11 KiB
329 lines
11 KiB
/*
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* Copyright (c) 2006 Cyrille Berger <cberger@cberger.net>
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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.
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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 "kis_smudgeop.h"
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#include <string.h>
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#include <tqrect.h>
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#include <tqwidget.h>
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#include <tqlayout.h>
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#include <tqlabel.h>
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#include <tqcheckbox.h>
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#include <tqtabwidget.h>
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#include <tqtoolbutton.h>
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#include <tqslider.h>
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#include <kdebug.h>
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#include "kis_colorspace_factory_registry.h"
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#include "kcurve.h"
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#include "kis_brush.h"
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#include "kis_global.h"
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#include "kis_paint_device.h"
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#include "kis_layer.h"
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#include "kis_meta_registry.h"
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#include "kis_painter.h"
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#include "kis_types.h"
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#include "kis_paintop.h"
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#include "kis_input_device.h"
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#include "kis_selection.h"
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#include "kis_dlgbrushcurvecontrol.h"
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KisPaintOp * KisSmudgeOpFactory::createOp(const KisPaintOpSettings *settings, KisPainter * painter)
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{
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const KisSmudgeOpSettings *brushopSettings = dynamic_cast<const KisSmudgeOpSettings *>(settings);
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Q_ASSERT(settings == 0 || brushopSettings != 0);
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KisPaintOp * op = new KisSmudgeOp(brushopSettings, painter);
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TQ_CHECK_PTR(op);
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return op;
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}
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KisSmudgeOpSettings::KisSmudgeOpSettings(TQWidget *parent, bool isTablet)
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: super(parent)
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{
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m_optionsWidget = new TQWidget(parent, "brush option widget");
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TQHBoxLayout * l = new TQHBoxLayout(m_optionsWidget);
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l->setAutoAdd(true);
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m_rateLabel = new TQLabel(i18n("Rate: "), m_optionsWidget);
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m_rateSlider = new TQSlider(0,100,1, 50, Qt::Horizontal, m_optionsWidget);
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if(isTablet)
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{
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m_pressureVariation = new TQLabel(i18n("Pressure variation: "), m_optionsWidget);
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m_size = new TQCheckBox(i18n("Size"), m_optionsWidget);
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m_size->setChecked(true);
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m_opacity = new TQCheckBox(i18n("Opacity"), m_optionsWidget);
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m_rate = new TQCheckBox(i18n("Rate"), m_optionsWidget);
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m_curveControl = new WdgBrushCurveControl(m_optionsWidget);
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// We abuse the darken curve here for rate
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m_curveControl->tabWidget->setTabLabel(m_curveControl->tabWidget->page(2), i18n("Rate"));
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m_curveControl->tabWidget->setTabToolTip(m_curveControl->tabWidget->page(2),
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i18n("Modifies the rate. Bottom is 0% of the rate top is 100% of the original rate."));
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TQToolButton* moreButton = new TQToolButton(TQt::UpArrow, m_optionsWidget);
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moreButton->setSizePolicy(TQSizePolicy::Expanding, TQSizePolicy::Expanding);
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moreButton->setMinimumSize(TQSize(24,24)); // Bah, I had hoped the above line would make this unneeded
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connect(moreButton, TQT_SIGNAL(clicked()), this, TQT_SLOT(slotCustomCurves()));
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} else {
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m_pressureVariation = 0;
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m_size = 0;
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m_rate = 0;
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m_opacity = 0;
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m_curveControl = 0;
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}
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m_customRate = false;
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m_customSize = false;
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m_customOpacity = false;
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// the curves will get filled in when the slot gets accepted
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}
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void KisSmudgeOpSettings::slotCustomCurves() {
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if (m_curveControl->exec() == TQDialog::Accepted) {
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m_customRate = m_curveControl->darkenCheckbox->isChecked();
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m_customSize = m_curveControl->sizeCheckbox->isChecked();
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m_customOpacity = m_curveControl->opacityCheckbox->isChecked();
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if (m_customRate) {
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transferCurve(m_curveControl->darkenCurve, m_rateCurve);
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}
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if (m_customSize) {
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transferCurve(m_curveControl->sizeCurve, m_sizeCurve);
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}
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if (m_customOpacity) {
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transferCurve(m_curveControl->opacityCurve, m_opacityCurve);
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}
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}
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}
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void KisSmudgeOpSettings::transferCurve(KCurve* curve, double* target) {
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double value;
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for (int i = 0; i < 256; i++) {
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value = curve->getCurveValue( i / 255.0);
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if (value < PRESSURE_MIN)
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target[i] = PRESSURE_MIN;
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else if (value > PRESSURE_MAX)
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target[i] = PRESSURE_MAX;
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else
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target[i] = value;
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}
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}
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int KisSmudgeOpSettings::rate() const
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{
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return m_rateSlider->value();
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}
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bool KisSmudgeOpSettings::varyRate() const
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{
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return m_rate ? m_rate->isChecked() : false;
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}
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bool KisSmudgeOpSettings::varySize() const
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{
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return m_size ? m_size->isChecked() : true;
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}
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bool KisSmudgeOpSettings::varyOpacity() const
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{
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return m_opacity ? m_opacity->isChecked() : false;
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}
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KisPaintOpSettings* KisSmudgeOpFactory::settings(TQWidget * parent, const KisInputDevice& inputDevice)
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{
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if (inputDevice == KisInputDevice::mouse()) {
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// No options for mouse, only tablet devices
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return new KisSmudgeOpSettings(parent, false);
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} else {
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return new KisSmudgeOpSettings(parent, true);
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}
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}
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KisSmudgeOp::KisSmudgeOp(const KisSmudgeOpSettings *settings, KisPainter *painter)
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: super(painter)
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, m_firstRun(true)
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, m_rate(50)
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, m_pressureSize(true)
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, m_pressureRate(false)
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, m_pressureOpacity(false)
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, m_customRate(false)
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, m_customSize(false)
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, m_customOpacity(false)
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, m_target(0)
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, m_srcdev(0)
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{
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if (settings != 0) {
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m_rate = settings->rate();
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m_pressureRate = settings->varyRate();
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m_pressureSize = settings->varySize();
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m_pressureOpacity = settings->varyOpacity();
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m_customRate = settings->customRate();
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m_customSize = settings->customSize();
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m_customOpacity = settings->customOpacity();
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if (m_customSize) {
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memcpy(m_sizeCurve, settings->sizeCurve(), 256 * sizeof(double));
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}
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if (m_customOpacity) {
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memcpy(m_opacityCurve, settings->opacityCurve(), 256 * sizeof(double));
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}
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if (m_customRate) {
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memcpy(m_rateCurve, settings->rateCurve(), 256 * sizeof(double));
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}
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}
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KisPaintDeviceSP device = m_painter->device();
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m_srcdev = new KisPaintDevice(device->colorSpace(), "duplicate source dev");
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m_target = new KisPaintDevice(device->colorSpace(), "duplicate target dev");
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}
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KisSmudgeOp::~KisSmudgeOp()
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{
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}
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void KisSmudgeOp::paintAt(const KisPoint &pos, const KisPaintInformation& info)
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{
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KisPaintInformation adjustedInfo(info);
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if (!m_pressureSize)
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adjustedInfo.pressure = PRESSURE_DEFAULT;
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else if (m_customSize)
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adjustedInfo.pressure = scaleToCurve(adjustedInfo.pressure, m_sizeCurve);
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// Painting should be implemented according to the following algorithm:
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// retrieve brush
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// if brush == mask
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// retrieve mask
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// else if brush == image
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// retrieve image
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// subsample (mask | image) for position -- pos should be double!
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// apply filters to mask (colour | gradient | pattern | etc.
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// composite filtered mask into temporary layer
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// composite temporary layer into target layer
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// @see: doc/brush.txt
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if (!m_painter->device()) return;
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KisBrush *brush = m_painter->brush();
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Q_ASSERT(brush);
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if (!brush) return;
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if (! brush->canPaintFor(adjustedInfo) )
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return;
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KisPaintDeviceSP device = m_painter->device();
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KisPoint hotSpot = brush->hotSpot(adjustedInfo);
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KisPoint pt = pos - hotSpot;
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// Split the coordinates into integer plus fractional parts. The integer
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// is where the dab will be positioned and the fractional part determines
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// the sub-pixel positioning.
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TQ_INT32 x;
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double xFraction;
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TQ_INT32 y;
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double yFraction;
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splitCoordinate(pt.x(), &x, &xFraction);
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splitCoordinate(pt.y(), &y, &yFraction);
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KisPaintDeviceSP dab = 0;
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TQ_UINT8 origOpacity = m_painter->opacity();
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if (m_pressureOpacity) {
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if (!m_customOpacity)
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m_painter->setOpacity((TQ_INT8)(origOpacity * info.pressure));
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else
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m_painter->setOpacity((TQ_INT8)(origOpacity * scaleToCurve(info.pressure, m_opacityCurve)));
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}
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if (brush->brushType() == IMAGE || brush->brushType() == PIPE_IMAGE) {
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dab = brush->image(device->colorSpace(), adjustedInfo, xFraction, yFraction);
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dab->convertTo(KisMetaRegistry::instance()->csRegistry()->getAlpha8());
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}
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else {
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KisAlphaMaskSP mask = brush->mask(adjustedInfo, xFraction, yFraction);
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dab = computeDab(mask, KisMetaRegistry::instance()->csRegistry()->getAlpha8());
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}
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m_painter->setPressure(adjustedInfo.pressure);
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TQRect dabRect = TQRect(0, 0, brush->maskWidth(adjustedInfo),
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brush->maskHeight(adjustedInfo));
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TQRect dstRect = TQRect(x, y, dabRect.width(), dabRect.height());
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KisImage * image = device->image();
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if (image != 0) {
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dstRect &= image->bounds();
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}
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TQ_INT32 sw = dab->extent().width();
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TQ_INT32 sh = dab->extent().height();
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KisPainter copyPainter(m_srcdev);
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int opacity = OPACITY_OPAQUE;
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if(!m_firstRun)
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{
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opacity = rate();
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if (m_pressureRate) {
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if (m_customRate) {
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opacity = CLAMP((TQ_UINT8)(double(opacity) * scaleToCurve(info.pressure, m_rateCurve)), OPACITY_TRANSPARENT, OPACITY_OPAQUE);
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} else {
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opacity = CLAMP((TQ_UINT8)(double(opacity) * info.pressure), OPACITY_TRANSPARENT, OPACITY_OPAQUE);
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}
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}
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opacity = OPACITY_OPAQUE - opacity;
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} else {
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m_firstRun = false;
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}
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copyPainter.bitBlt(0, 0, COMPOSITE_OVER, device, opacity, pt.x(), pt.y(), sw, sh);
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copyPainter.end();
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m_target = new KisPaintDevice(device->colorSpace(), "duplicate target dev");
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copyPainter.begin(m_target);
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copyPainter.bltMask(0, 0, COMPOSITE_OVER, m_srcdev, dab,
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OPACITY_OPAQUE, 0, 0, sw, sh);
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copyPainter.end();
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if (dstRect.isNull() || dstRect.isEmpty() || !dstRect.isValid()) return;
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TQ_INT32 sx = dstRect.x() - x;
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TQ_INT32 sy = dstRect.y() - y;
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sw = dstRect.width();
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sh = dstRect.height();
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if (m_source->hasSelection()) {
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m_painter->bltSelection(dstRect.x(), dstRect.y(), m_painter->compositeOp(), m_target,
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m_source->selection(), m_painter->opacity(), sx, sy, sw, sh);
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}
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else {
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m_painter->bitBlt(dstRect.x(), dstRect.y(), m_painter->compositeOp(), m_target, m_painter->opacity(), sx, sy, sw, sh);
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}
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m_painter->addDirtyRect(dstRect);
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m_painter->setOpacity(origOpacity);
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}
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#include "kis_smudgeop.moc"
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