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253 lines
8.6 KiB
253 lines
8.6 KiB
15 years ago
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/***************************************************************************
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gradientselection.cpp - description
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-------------------
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begin : Wed Jul 12 2000
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copyright : (C) 2000 by Artur Rataj
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email : art@zeus.polsl.gliwice.pl
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***************************************************************************/
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/***************************************************************************
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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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***************************************************************************/
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#include <qlayout.h>
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#include <qframe.h>
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#include <qradiobutton.h>
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#include <qcolor.h>
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#include <klocale.h>
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#include "main.h"
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#include "gradientselection.h"
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GradientSelection::GradientSelection(QWidget *parent, const char *name ) : QWidget(parent,name) {
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QGridLayout* topLayout = new QGridLayout(this, 2, 2, 0);
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QHBoxLayout* layout = new QHBoxLayout(0);
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layout->setMargin(3);
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xyColorSelector = new KXYColorSelector(this);
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connect(xyColorSelector, SIGNAL( valueChanged(int, int) ),
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SLOT( slotXyColorSelectorPosChanged(int, int) ));
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layout->addWidget(xyColorSelector);
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topLayout->addLayout(layout, 0, 0);
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topLayout->setRowStretch(0, 10);
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topLayout->setRowStretch(1, 0);
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QVBoxLayout* xyColorSelectorLayout = new QVBoxLayout();
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QHBoxLayout* checkBoxLayout = new QHBoxLayout();
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checkBoxLayout->setMargin(0);
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variableCheckBox = new QCheckBox(i18n( "Variable" ), this);
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variableGlobalComponent = false;
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connect(variableCheckBox, SIGNAL( toggled(bool) ), SLOT( slotSetVariableGlobalComponent(bool) ));
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checkBoxLayout->addSpacing(2);
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checkBoxLayout->addWidget(variableCheckBox);
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xyColorSelectorLayout->addLayout(checkBoxLayout);
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xyColorSelectorLayout->addStretch(10);
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QHBoxLayout* buttonsLayout = new QHBoxLayout();
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synchronizeColorButton = new QPushButton(i18n( "Synchronize" ), this);
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connect(synchronizeColorButton, SIGNAL( clicked() ), SLOT( slotSynchronizeColor() ));
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buttonsLayout->addSpacing(2);
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buttonsLayout->addWidget(synchronizeColorButton);
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buttonsLayout->addStretch(10);
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xyColorSelectorLayout->addLayout(buttonsLayout);
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xyColorSelectorLayout->addSpacing(2);
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topLayout->addLayout(xyColorSelectorLayout, 1, 0);
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zColorSelector = new KZColorSelector(KZColorSelector::Vertical, this);
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connect(zColorSelector, SIGNAL( valueChanged(int) ),
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SLOT( slotZColorSelectorPosChanged(int) ));
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zColorSelector->setFixedWidth(36);
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topLayout->addWidget(zColorSelector, 0, 1);
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QVBoxLayout* zColorSelectorLayout = new QVBoxLayout(0);
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connect(&hsvButtons, SIGNAL( clicked(int) ), SLOT( slotSetColorSelectionMode(int) ));
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QRadioButton* hRadioButton = new QRadioButton("H", this);
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hsvButtons.insert(hRadioButton, H_COMPONENT);
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zColorSelectorLayout->addWidget(hRadioButton);
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QRadioButton* sRadioButton = new QRadioButton("S", this);
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hsvButtons.insert(sRadioButton, S_COMPONENT);
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zColorSelectorLayout->addWidget(sRadioButton);
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QRadioButton* vRadioButton = new QRadioButton("V", this);
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hsvButtons.insert(vRadioButton, V_COMPONENT);
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vRadioButton->toggle();
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zColorSelectorLayout->addWidget(vRadioButton);
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topLayout->addLayout(zColorSelectorLayout, 1, 1);
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color.setComponents(RGB_MAX_COMPONENT_VALUE, RGB_MAX_COMPONENT_VALUE, RGB_MAX_COMPONENT_VALUE);
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hComponent = -1;
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sComponent = 0;
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vComponent = HSV_MAX_V_VALUE;
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slotIgnoreSetValue(false);
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slotSetColorSelectionMode(V_COMPONENT);
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}
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GradientSelection::~GradientSelection(){
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}
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void GradientSelection::slotSetValue(Color* color) {
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if(!ignoreSetValue && !color->equals( this->color )) {
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this->color = *color;
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int newHComponent;
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int newSComponent;
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int newVComponent;
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QColor hsvColor(this->color.component(Color::RED_INDEX),
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this->color.component(Color::GREEN_INDEX),
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this->color.component(Color::BLUE_INDEX));
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hsvColor.hsv(&newHComponent, &newSComponent, &newVComponent);
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hComponent = newHComponent;
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sComponent = newSComponent;
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vComponent = newVComponent;
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updateXyColorSelector(false);
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updateZColorSelector();
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}
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}
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void GradientSelection::slotIgnoreSetValue(bool ignore) {
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ignoreSetValue = ignore;
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}
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void GradientSelection::updateXyColorSelector(const bool modeChanged) {
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int xPos;
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int yPos;
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int component;
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switch(zColorSelectorComponentIndex) {
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case H_COMPONENT:
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xPos = (int)(vComponent*( KXYColorSelector::COMPONENT_SELECTION_RESOLUTION - 1 )/
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HSV_MAX_V_VALUE + 0.5);
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yPos = (int)(sComponent*( KXYColorSelector::COMPONENT_SELECTION_RESOLUTION - 1 )/
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HSV_MAX_S_VALUE + 0.5);
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component = hComponent;
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break;
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case S_COMPONENT:
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xPos = (int)(hComponent*( KXYColorSelector::COMPONENT_SELECTION_RESOLUTION - 1 )/
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HSV_MAX_H_VALUE + 0.5);
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yPos = (int)(vComponent*( KXYColorSelector::COMPONENT_SELECTION_RESOLUTION - 1 )/
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HSV_MAX_V_VALUE + 0.5);
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if(variableGlobalComponent)
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component = sComponent;
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else
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component = 240;
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break;
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case V_COMPONENT:
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xPos = (int)(hComponent*( KXYColorSelector::COMPONENT_SELECTION_RESOLUTION - 1 )/
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HSV_MAX_H_VALUE + 0.5);
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yPos = (int)(sComponent*( KXYColorSelector::COMPONENT_SELECTION_RESOLUTION - 1 )/
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HSV_MAX_S_VALUE + 0.5);
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if(variableGlobalComponent)
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component = vComponent;
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else
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component = 192;
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break;
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default:
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xPos = 0;
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yPos = 0;
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component = 0;
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break;
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}
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if(xPos < 0)
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xPos = 0;
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if(yPos < 0)
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yPos = 0;
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if(modeChanged || xyColorSelector->globalComponent() != component) {
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xyColorSelector->setGlobalComponent(component);
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xyColorSelector->updateContents();
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}
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xyColorSelector->setValues(xPos, yPos);
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}
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void GradientSelection::updateZColorSelector() {
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zColorSelector->setBaseColorHsv(hComponent, sComponent, vComponent);
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zColorSelector->updatePointerPos();
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zColorSelector->updateContents();
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}
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void GradientSelection::slotSetColorSelectionMode(int mode) {
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zColorSelectorComponentIndex = mode;
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xyColorSelector->setType(zColorSelectorComponentIndex);
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updateXyColorSelector(true);
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switch(zColorSelectorComponentIndex) {
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case H_COMPONENT:
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zColorSelector->setType(KZColorSelector::TYPE_H);
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variableCheckBox->setEnabled(false);
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break;
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case S_COMPONENT:
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zColorSelector->setType(KZColorSelector::TYPE_S);
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variableCheckBox->setEnabled(true);
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break;
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case V_COMPONENT:
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zColorSelector->setType(KZColorSelector::TYPE_V);
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variableCheckBox->setEnabled(true);
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break;
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}
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updateZColorSelector();
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}
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void GradientSelection::slotSetVariableGlobalComponent(bool variable) {
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variableGlobalComponent = variable;
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updateXyColorSelector(false);
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}
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void GradientSelection::slotXyColorSelectorPosChanged(int x, int y) {
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switch(zColorSelectorComponentIndex) {
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case H_COMPONENT:
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vComponent = (int)(x*1.0*HSV_MAX_V_VALUE/( KXYColorSelector::COMPONENT_SELECTION_RESOLUTION - 1 ) + 0.5);
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sComponent = (int)(y*1.0*HSV_MAX_S_VALUE/( KXYColorSelector::COMPONENT_SELECTION_RESOLUTION - 1 ) + 0.5);
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break;
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case S_COMPONENT:
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hComponent = (int)(x*1.0*HSV_MAX_H_VALUE/( KXYColorSelector::COMPONENT_SELECTION_RESOLUTION - 1 ) + 0.5);
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vComponent = (int)(y*1.0*HSV_MAX_V_VALUE/( KXYColorSelector::COMPONENT_SELECTION_RESOLUTION - 1 ) + 0.5);
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break;
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case V_COMPONENT:
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hComponent = (int)(x*1.0*HSV_MAX_H_VALUE/( KXYColorSelector::COMPONENT_SELECTION_RESOLUTION - 1 ) + 0.5);
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sComponent = (int)(y*1.0*HSV_MAX_S_VALUE/( KXYColorSelector::COMPONENT_SELECTION_RESOLUTION - 1 ) + 0.5);
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break;
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}
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QColor rgbColor;
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rgbColor.setHsv(hComponent, sComponent, vComponent);
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color.setComponents(rgbColor.red(), rgbColor.green(), rgbColor.blue());
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updateZColorSelector();
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emit valueChanged(&color);
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}
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void GradientSelection::slotZColorSelectorPosChanged(int y) {
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bool repaintZColorSelector = false;
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switch(zColorSelectorComponentIndex) {
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case H_COMPONENT:
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hComponent = y;
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break;
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case S_COMPONENT:
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sComponent = y;
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break;
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case V_COMPONENT:
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vComponent = y;
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break;
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}
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QColor rgbColor;
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rgbColor.setHsv(hComponent, sComponent, vComponent);
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color.setComponents(rgbColor.red(), rgbColor.green(), rgbColor.blue());
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updateXyColorSelector(false);
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if(repaintZColorSelector)
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updateZColorSelector();
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emit valueChanged(&color);
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}
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void GradientSelection::slotSynchronizeColor() {
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emit synchronizeColor();
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}
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void GradientSelection::enableSynchronizeColorButton(bool enable) {
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synchronizeColorButton->setEnabled(enable);
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}
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#include "gradientselection.moc"
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