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