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authorAnne Jan Brouwer <brouwer@annejan.com>2016-12-13 00:05:58 +0100
committerAnne Jan Brouwer <brouwer@annejan.com>2016-12-13 00:05:58 +0100
commit109958c1a14bbfab79bb30e72f2a706bcada4c60 (patch)
tree26de8388b1587c962a039c42efc93361a70f09c8 /src/qprogressindicator.cpp
parent641598e971bda056aea618bb67c8ab88e7b9da26 (diff)
Moved sources to src
Diffstat (limited to 'src/qprogressindicator.cpp')
-rw-r--r--src/qprogressindicator.cpp114
1 files changed, 114 insertions, 0 deletions
diff --git a/src/qprogressindicator.cpp b/src/qprogressindicator.cpp
new file mode 100644
index 00000000..009981f3
--- /dev/null
+++ b/src/qprogressindicator.cpp
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+#include "qprogressindicator.h"
+#include <QPainter>
+
+/**
+ * @brief QProgressIndicator::QProgressIndicator constructor.
+ * @param parent widget the indicator is placed in.
+ */
+QProgressIndicator::QProgressIndicator(QWidget *parent)
+ : QWidget(parent), m_angle(0), m_timerId(-1), m_delay(40),
+ m_displayedWhenStopped(false), m_color(Qt::black) {
+ setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
+ setFocusPolicy(Qt::NoFocus);
+}
+
+bool QProgressIndicator::isAnimated() const { return m_timerId != -1; }
+
+void QProgressIndicator::setDisplayedWhenStopped(bool state) {
+ m_displayedWhenStopped = state;
+
+ update();
+}
+
+bool QProgressIndicator::isDisplayedWhenStopped() const {
+ return m_displayedWhenStopped;
+}
+
+void QProgressIndicator::startAnimation() {
+ m_angle = 0;
+
+ if (m_timerId == -1)
+ m_timerId = startTimer(m_delay);
+}
+
+void QProgressIndicator::stopAnimation() {
+ if (m_timerId != -1)
+ killTimer(m_timerId);
+
+ m_timerId = -1;
+
+ update();
+}
+
+void QProgressIndicator::setAnimationDelay(int delay) {
+ if (m_timerId != -1)
+ killTimer(m_timerId);
+
+ m_delay = delay;
+
+ if (m_timerId != -1)
+ m_timerId = startTimer(m_delay);
+}
+
+void QProgressIndicator::setColor(const QColor &color) {
+ m_color = color;
+
+ update();
+}
+
+/**
+ * @brief QProgressIndicator::sizeHint default minimum size.
+ * @return QSize(20, 20)
+ */
+QSize QProgressIndicator::sizeHint() const { return QSize(20, 20); }
+
+/**
+ * @brief QProgressIndicator::heightForWidth square ratio.
+ * @param w requested width
+ * @return w returned height
+ */
+int QProgressIndicator::heightForWidth(int w) const { return w; }
+
+/**
+ * @brief QProgressIndicator::timerEvent do the actual animation.
+ */
+void QProgressIndicator::timerEvent(QTimerEvent * /*event*/) {
+ m_angle = (m_angle + 30) % 360;
+
+ update();
+}
+
+/**
+ * @brief QProgressIndicator::paintEvent draw the spinner.
+ */
+void QProgressIndicator::paintEvent(QPaintEvent * /*event*/) {
+ if (!m_displayedWhenStopped && !isAnimated())
+ return;
+
+ int width = qMin(this->width(), this->height());
+
+ QPainter p(this);
+ p.setRenderHint(QPainter::Antialiasing);
+
+ int outerRadius = int((width - 1) * 0.5);
+ int innerRadius = int((width - 1) * 0.5 * 0.38);
+
+ int capsuleHeight = outerRadius - innerRadius;
+ int capsuleWidth =
+ (width > 32) ? int(capsuleHeight * 0.23) : int(capsuleHeight * 0.35);
+ int capsuleRadius = capsuleWidth / 2;
+
+ for (int i = 0; i < 12; ++i) {
+ QColor color = m_color;
+ color.setAlphaF(int(1.0f - (i / 12.0f)));
+ p.setPen(Qt::NoPen);
+ p.setBrush(color);
+ p.save();
+ p.translate(rect().center());
+ p.rotate(int(m_angle - i * 30.0f));
+ p.drawRoundedRect(int(-capsuleWidth * 0.5), -(innerRadius + capsuleHeight),
+ capsuleWidth, capsuleHeight, capsuleRadius,
+ capsuleRadius);
+ p.restore();
+ }
+}