From 9db54180133bb7598fff3f702c37163f4f5d4c9e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Karel=20Ko=C4=8D=C3=AD?= <cynerd@email.cz>
Date: Sun, 7 Jan 2018 19:32:28 +0100
Subject: Animate time wedge in latch with step

---
 qtmips_gui/coreview/latch.cpp | 27 +++++++++++++++++++++++----
 qtmips_gui/coreview/latch.h   | 10 ++++++++++
 2 files changed, 33 insertions(+), 4 deletions(-)

(limited to 'qtmips_gui')

diff --git a/qtmips_gui/coreview/latch.cpp b/qtmips_gui/coreview/latch.cpp
index 5f2727b..13351a2 100644
--- a/qtmips_gui/coreview/latch.cpp
+++ b/qtmips_gui/coreview/latch.cpp
@@ -7,8 +7,15 @@ using namespace coreview;
 #define PENW 1
 //////////////////////
 
-Latch::Latch(machine::QtMipsMachine *machine, qreal height) {
+Latch::Latch(machine::QtMipsMachine *machine, qreal height) : QGraphicsObject(nullptr) {
     this->height = height;
+
+    wedge_animation = new QPropertyAnimation(this, "wedge_clr");
+    wedge_animation->setDuration(100);
+    wedge_animation->setStartValue(QColor(0, 0, 0));
+    wedge_animation->setEndValue(QColor(255, 255, 255));
+    wedge_clr = QColor(255, 255, 255);
+
     connect(machine, SIGNAL(tick()), this, SLOT(tick()));
 }
 
@@ -21,12 +28,22 @@ void Latch::paint(QPainter *painter, const QStyleOptionGraphicsItem *option __at
     // Now tick rectangle
     const QPointF tickPolygon[] = {
         QPointF(0, 0),
-        QPointF(WIDTH/2, WIDTH/2),
-        QPointF(WIDTH, 0)
+        QPointF(WIDTH, 0),
+        QPointF(WIDTH/2, WIDTH/2)
     };
+    painter->setBrush(QBrush(wedge_color()));
     painter->drawPolygon(tickPolygon, sizeof(tickPolygon) / sizeof(QPointF));
 }
 
+QColor Latch::wedge_color() {
+    return wedge_clr;
+}
+
+void Latch::set_wedge_color(QColor &c) {
+    wedge_clr = c;
+    update();
+}
+
 void Latch::setPos(qreal x, qreal y) {
     QGraphicsObject::setPos(x, y);
     for (int i = 0; i < connectors.size(); i++) {
@@ -47,5 +64,7 @@ struct Latch::ConnectorPair Latch::new_connector(qreal cy) {
 }
 
 void Latch::tick() {
-    // TODO animate
+    wedge_clr = QColor(0, 0, 0);
+    wedge_animation->start();
+    update();
 }
diff --git a/qtmips_gui/coreview/latch.h b/qtmips_gui/coreview/latch.h
index ff1ff6e..951f16a 100644
--- a/qtmips_gui/coreview/latch.h
+++ b/qtmips_gui/coreview/latch.h
@@ -3,6 +3,7 @@
 
 #include <QGraphicsObject>
 #include <QList>
+#include <QPropertyAnimation>
 #include "qtmipsexception.h"
 #include "qtmipsmachine.h"
 #include "../coreview.h"
@@ -12,18 +13,25 @@ namespace coreview {
 
 class Latch : public QGraphicsObject {
     Q_OBJECT
+    Q_PROPERTY(QColor wedge_clr READ wedge_color WRITE set_wedge_color)
 public:
     Latch(machine::QtMipsMachine *machine, qreal height);
 
     QRectF boundingRect() const;
     void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
 
+    QColor wedge_color();
+    void set_wedge_color(QColor &c);
+
     void setPos(qreal x, qreal y);
 
     struct ConnectorPair { Connector *in, *out; };
 
     struct ConnectorPair new_connector(qreal y); // Create new connectors pair that is given y from top of latch
 
+protected:
+    void updateCurrentValue(const QColor &color);
+
 private slots:
     void tick();
 
@@ -32,6 +40,8 @@ private:
     QList<ConnectorPair> connectors;
     QList<qreal> connectors_off;
 
+    QPropertyAnimation *wedge_animation;
+    QColor wedge_clr;
 };
 
 }
-- 
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