From: Joel Holdsworth <redacted>
Date: Sat, 5 Oct 2013 11:24:23 +0000 (+0100)
Subject: Added pv::widgets::ColourButton
X-Git-Tag: pulseview-0.2.0~263
X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=a52fcc7685afca7c003c64150399262fd362de00;p=pulseview.git

Added pv::widgets::ColourButton
---

diff --git a/pv/widgets/colourbutton.cpp b/pv/widgets/colourbutton.cpp
new file mode 100644
index 00000000..c0cd7f28
--- /dev/null
+++ b/pv/widgets/colourbutton.cpp
@@ -0,0 +1,104 @@
+/*
+ * This file is part of the PulseView project.
+ *
+ * Copyright (C) 2013 Joel Holdsworth <joel@airwebreathe.org.uk>
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#include "colourbutton.h"
+
+namespace pv {
+namespace widgets {
+
+const int ColourButton::SwatchMargin = 7;
+
+ColourButton::ColourButton(int rows, int cols, QWidget *parent) :
+	QPushButton("", parent),
+	_popup(rows, cols, this)
+{
+	connect(this, SIGNAL(clicked(bool)), this, SLOT(on_clicked(bool)));
+	connect(&_popup, SIGNAL(selected(int, int)),
+		this, SLOT(on_selected(int, int)));
+}
+
+ColourPopup& ColourButton::popup()
+{
+	return _popup;
+}
+
+const QColor& ColourButton::colour() const
+{
+	return _cur_colour;
+}
+
+void ColourButton::set_colour(QColor colour)
+{
+	_cur_colour = colour;
+
+	const unsigned int rows = _popup.well_array().numRows();
+	const unsigned int cols = _popup.well_array().numCols();
+
+	for (unsigned int r = 0; r < rows; r++)
+		for (unsigned int c = 0; c < cols; c++)
+			if (_popup.well_array().cellBrush(r, c).color() ==
+				colour)
+			{
+				_popup.well_array().setSelected(r, c);
+				_popup.well_array().setCurrent(r, c);
+				return;
+			}	
+}
+
+void ColourButton::set_palette(const QColor *const palette)
+{
+	assert(palette);
+
+	const unsigned int rows = _popup.well_array().numRows();
+	const unsigned int cols = _popup.well_array().numCols();
+
+	for (unsigned int r = 0; r < rows; r++)
+		for (unsigned int c = 0; c < cols; c++)
+			_popup.well_array().setCellBrush(r, c,
+				QBrush(palette[r * cols + c]));
+}
+
+void ColourButton::on_clicked(bool)
+{
+	_popup.set_position(mapToGlobal(rect().center()), Popup::Bottom);
+	_popup.show();
+}
+
+void ColourButton::on_selected(int row, int col)
+{
+	_cur_colour = _popup.well_array().cellBrush(row, col).color();
+	selected(_cur_colour);
+}
+
+void ColourButton::paintEvent(QPaintEvent *e)
+{
+	QPushButton::paintEvent(e);
+
+	QPainter p(this);
+
+	const QRect r = rect().adjusted(SwatchMargin, SwatchMargin,
+		-SwatchMargin, -SwatchMargin);
+	p.setPen(QApplication::palette().color(QPalette::Dark));
+	p.setBrush(QBrush(_cur_colour));
+	p.drawRect(r);
+}
+
+} // widgets
+} // pv
diff --git a/pv/widgets/colourbutton.h b/pv/widgets/colourbutton.h
new file mode 100644
index 00000000..22f6bdbc
--- /dev/null
+++ b/pv/widgets/colourbutton.h
@@ -0,0 +1,66 @@
+/*
+ * This file is part of the PulseView project.
+ *
+ * Copyright (C) 2013 Joel Holdsworth <joel@airwebreathe.org.uk>
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#ifndef PULSEVIEW_PV_WIDGETS_COLOURBUTTON_H
+#define PULSEVIEW_PV_WIDGETS_COLOURBUTTON_H
+
+#include "colourpopup.h"
+
+namespace pv {
+namespace widgets {
+
+class ColourButton : public QPushButton
+{
+	Q_OBJECT;
+
+private:
+	static const int SwatchMargin;
+
+public:
+	ColourButton(int rows, int cols, QWidget *parent);
+
+	ColourPopup& popup();
+
+	const QColor& colour() const;
+
+	void set_colour(QColor colour);
+
+	void set_palette(const QColor *const palette);
+
+private:
+	void paintEvent(QPaintEvent *e);
+
+private slots:
+	void on_clicked(bool);
+
+	void on_selected(int row, int col);
+
+signals:
+	void selected(const QColor &colour);
+
+private:
+	ColourPopup _popup;
+	QColor _cur_colour;
+};
+
+} // widgets
+} // pv
+
+#endif // PULSEVIEW_PV_WIDGETS_COLOURBUTTON_H