From dcecacbf52121d6f8adf076d2cebaeec1e141339 Mon Sep 17 00:00:00 2001
From: Bent Bisballe Nyeng <deva@aasimon.org>
Date: Thu, 23 Aug 2012 20:23:19 +0200
Subject: Implement automatic reset/reload when script file changes on disc.

---
 src/outputwindow.cc | 30 +++++++++++++++++++++++-------
 1 file changed, 23 insertions(+), 7 deletions(-)

(limited to 'src/outputwindow.cc')

diff --git a/src/outputwindow.cc b/src/outputwindow.cc
index 0f66a0b..faa4432 100644
--- a/src/outputwindow.cc
+++ b/src/outputwindow.cc
@@ -32,8 +32,12 @@
 
 #include <math.h>
 
+#define SCALE 2
+
 OutputWindow::OutputWindow()
 {
+  resize(1000, 1000);
+
   QPixmap img("gfx/kaiman.png");
   //QPixmap img("gfx/arrow.png");
   kaiman = img.toImage();
@@ -49,6 +53,11 @@ OutputWindow::OutputWindow()
   reset();
 }
 
+void OutputWindow::stopScript()
+{
+  stop = true;
+}
+
 void OutputWindow::timeout()
 {
   /*
@@ -64,12 +73,15 @@ void OutputWindow::paintEvent(QPaintEvent *)
 {
   //  sem.acquire();
   QPainter p(this);
+  //  QTransform tp; tp.scale(3, 3); p.setTransform(tp);
 
   QTransform t;
   t.rotate(-r + 90);
-  t.scale(100.0 / kaiman.width(), 100.0 / kaiman.width());
+  t.scale((100.0 / kaiman.width()) * SCALE,
+          (100.0 / kaiman.width()) * SCALE);
   QImage img = kaiman.transformed(t, Qt::SmoothTransformation);
-  p.drawImage(x - img.width()/2, y - img.height()/2, img);
+  p.drawImage((x * SCALE) - img.width()/2 ,
+              (y * SCALE)- img.height()/2, img);
 
   QPen pen(QColor(255,0,0,100));
   pen.setWidth(4);
@@ -82,9 +94,11 @@ void OutputWindow::paintEvent(QPaintEvent *)
 void OutputWindow::reset()
 {
   points.clear();
-  x = width() / 2;
-  y = height() / 2;
+  x = (width() / 2) / SCALE;
+  y = (height() / 2) / SCALE;
   r = 0;
+  stop = false;
+  while(sem.tryAcquire()) {}
 }
 
 static inline int sign(int x)
@@ -103,10 +117,11 @@ void OutputWindow::forward(int x)
   float source_y = this->y;
 
   for(int i = 0; i < abs(x); i++) {
+    if(stop) return;
     float d = (float)i / (float)x * sign(x);
     this->x = source_x + target_x * d;
     this->y = source_y + target_y * d;
-    points.append(QPointF(this->x, this->y));
+    points.append(QPointF(this->x * SCALE, this->y * SCALE));
     sem.acquire();
   }
 }
@@ -114,8 +129,9 @@ void OutputWindow::forward(int x)
 void OutputWindow::turn(int x)
 {
   sem.acquire();
-  for(int i = 0; i < abs(x) * 2; i++) {
-    this->r += sign(x) * 0.5;
+  for(int i = 0; i < abs(x)/2; i++) {
+    if(stop) return;
+    this->r += sign(x)*2;
     sem.acquire();
   }
 }
-- 
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