ColorButton.cpp
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ColorButton.cpp
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	#include "ColorButton.h"

	#include <ColorDialog.h>
	#include <QPainter>
	#include <QProxyStyle>
	#include <QStyleOption>
	#include "common/misc.h"

	ColorButton::ColorButton(QWidget *parent)
	: QToolButton(parent)
	{
	color_ = Qt::red;

	connect(this, &ColorButton::clicked, [&](){
	QColor c = color();
	ColorDialog dlg(this, c);
	if (dlg.exec() == QDialog::Accepted) {
	c = dlg.color();
	setColor(c);
	}
	});
	}

	/**
	* @brief 色を取得
	* @return
	*/
	QColor ColorButton::color() const
	{
	return color_;
	}

	/**
	* @brief 色を設定
	* @param color
	*/
	void ColorButton::setColor(QColor const &color)
	{
	color_ = color;
	update();
	}

	/**
	* @brief 描画
	* @param event
	*/
	void ColorButton::paintEvent(QPaintEvent *event)
	{
	QPainter pr(this);
	QStyleOptionToolButton o;
	QStyleOptionButton o2;
	initStyleOption(&o);
	o2.rect = o.rect;
	o2.state = o.state;
	int h = o2.rect.height();

	// 色の矩形を描画
	misc::drawFrame(&pr, 0, 1, h - 2, h - 2, Qt::black);
	pr.fillRect(1, 2, h - 4, h - 4, color());

	// ボタン枠を描画
	o2.rect.adjust(h + 2, 0, 0, 0);
	style()->drawControl(QStyle::CE_PushButtonBevel, &o2, &pr, this);

	// ボタンテキストを描画
	o2.rect.adjust(4, 0, 0, 0);
	style()->drawItemText(&pr, o2.rect, Qt::AlignLeft \| Qt::AlignVCenter, palette(), isEnabled(), o.text);
	}