pulled the colour picker out into a LSColorPicker widget

1 files changed, 47 insertions, 0 deletions

diff --git a/lscolorpicker.cpp b/lscolorpicker.cpp
new file mode 100644
index 0000000..df911a2
--- /dev/null
+++ b/lscolorpicker.cpp
@@ -0,0 +1,47 @@
+#include "lscolorpicker.h"
+#include <QColorDialog>
+
+LSColorPicker::LSColorPicker(QWidget *parent) :
+	QToolButton(parent) {
+
+	connect(this, SIGNAL(clicked()), SLOT(tryAndChoose()));
+	setColor(QColor::fromRgb(255,255,255,255));
+}
+
+void LSColorPicker::setColor(QColor newCol) {
+	m_color = newCol;
+	refreshButton();
+}
+
+void LSColorPicker::tryAndChoose() {
+	QColor newCol = QColorDialog::getColor(
+				m_color, this,
+				"Pick a Colour",
+				QColorDialog::ShowAlphaChannel);
+
+	if (newCol.isValid() && newCol != m_color) {
+		QColor oldCol = m_color;
+		m_color = newCol;
+		refreshButton();
+		emit colorPicked(newCol, oldCol);
+	}
+}
+
+
+void LSColorPicker::refreshButton() {
+	setStyleSheet(QString("QToolButton { background-color: rgba(%1,%2,%3,%4); }")
+				  .arg(m_color.red())
+				  .arg(m_color.green())
+				  .arg(m_color.blue())
+				  .arg(m_color.alpha()));
+
+	setText(QString("RGBA %1,%2,%3,%4 (#%5%6%7%8)")
+			.arg(m_color.red())
+			.arg(m_color.green())
+			.arg(m_color.blue())
+			.arg(m_color.alpha())
+			.arg(m_color.red(), 2, 16, (QChar)'0')
+			.arg(m_color.green(), 2, 16, (QChar)'0')
+			.arg(m_color.blue(), 2, 16, (QChar)'0')
+			.arg(m_color.alpha(), 2, 16, (QChar)'0'));
+}