Added clear button

Optimized the frame handling a little (very little!).

4 files changed, 82 insertions, 21 deletions

diff --git a/src/decoder.cc b/src/decoder.cc
index ec3f695..7b3dd97 100644
--- a/src/decoder.cc
+++ b/src/decoder.cc
@@ -39,6 +39,11 @@
 
 /*
  * $Log$
+ * Revision 1.31  2005/06/02 20:45:01  deva
+ *
+ * Added clear button
+ * Optimized the frame handling a little (very little!).
+ *
  * Revision 1.30  2005/06/02 15:03:23  deva
  *
  * Fixed crash in network.cc if socket not connected.
@@ -171,21 +176,11 @@ void Decoder::decode()
       pthread_mutex_unlock(&shot_mutex);
     }
 
-    if(local_record | (local_record != old_record) | local_shoot | local_freeze) {
-      Frame *eframe = new Frame(ptr, DVPACKAGE_SIZE);
-      eframe->shoot = local_shoot;
-      eframe->freeze = local_freeze;
-      eframe->record = local_record;
-    
-      encode_queue->push(eframe);
-      
-      sem_post(encode_sem);
-    }
-    
     static int showframe = 1;
     if(skip_frames != 0) showframe = 1 - showframe;
     if(showframe) {
       Frame *pframe = new Frame(ptr, DVPACKAGE_SIZE);
+
       pframe->shoot = local_shoot;
       pframe->freeze = local_freeze;
       pframe->record = local_record;
@@ -200,7 +195,21 @@ void Decoder::decode()
       SDL_PushEvent(&user_event);
     }
 
-    free(ptr);
+    if(local_record | (local_record != old_record) | local_shoot | local_freeze) {
+      Frame *eframe = new Frame(NULL, 0);
+      eframe->data = ptr;
+      eframe->size = DVPACKAGE_SIZE;
+
+      eframe->shoot = local_shoot;
+      eframe->freeze = local_freeze;
+      eframe->record = local_record;
+    
+      encode_queue->push(eframe);
+      
+      sem_post(encode_sem);
+    } else {
+      free(ptr);
+    }
   }
 
   // Kick the others so they wake up with empty queues
diff --git a/src/frame.cc b/src/frame.cc
index ee5451d..c6a2848 100644
--- a/src/frame.cc
+++ b/src/frame.cc
@@ -31,6 +31,11 @@
 
 /*
  * $Log$
+ * Revision 1.8  2005/06/02 20:45:01  deva
+ *
+ * Added clear button
+ * Optimized the frame handling a little (very little!).
+ *
  * Revision 1.7  2005/05/22 15:49:22  deva
  * Added multithreaded encoding support.
  *
@@ -51,8 +56,8 @@
 
 Frame::Frame(unsigned char *d, int sz)
 {
-  data = (unsigned char *)malloc(sz);
-  if(d) memcpy(data, d, sz);
+  if(sz) data = (unsigned char *)malloc(sz);
+  if(sz && d) memcpy(data, d, sz);
   size = sz;
   number = 0;
 }
diff --git a/src/mainwindow.cc b/src/mainwindow.cc
index 4acf391..c127585 100644
--- a/src/mainwindow.cc
+++ b/src/mainwindow.cc
@@ -31,6 +31,11 @@
 
 /*
  * $Log$
+ * Revision 1.28  2005/06/02 20:45:01  deva
+ *
+ * Added clear button
+ * Optimized the frame handling a little (very little!).
+ *
  * Revision 1.27  2005/05/23 19:30:36  deva
  * Made some cleanup in the status bar.
  *
@@ -133,15 +138,18 @@ MainWindow::MainWindow(QApplication *qApp, QWidget* parent, const char* name )
   pix_cpr = new QPixmap();
   pix_cpr->load( PIXMAP_CPR );
 
+  pix_clear = new QPixmap();
+  pix_clear->load( PIXMAP_CLEAR );
+
   pix_snapshot = new QPixmap();
   pix_snapshot->load( PIXMAP_SNAPSHOT );
 
-  pix_dummy = new QPixmap();
-  pix_dummy->load( PIXMAP_DUMMY );
-  
   pix_logo = new QPixmap();
   pix_logo->load( PIXMAP_LOGO_SMALL );
 
+  pix_dummy = new QImage();
+  pix_dummy->load( PIXMAP_DUMMY );
+  
   timer = new QTimer(this);
   connect(timer, SIGNAL(timeout()), SLOT(redraw_edge()));
   rec_edge_counter = 0.0f;
@@ -231,11 +239,17 @@ void MainWindow::createGui()
   btn_cpr->setPixmap(*pix_cpr);
   QObject::connect( btn_cpr, SIGNAL(clicked()), this, SLOT(cpr_clicked()) );
   // Will also be connected in the MGUI code
-  g1->addWidget(btn_cpr, 1, 2);
+  g1->addWidget(btn_cpr, 1, 1);
 
   lbl_name = createLabel("", 18, 2);
   g1->addMultiCellWidget ( lbl_name, 2, 2, 0, 2);
 
+  btn_clear = createButton("Clear", 8, 3);
+  //  btn_clear->setPixmap(*pix_clear);
+  QObject::connect( btn_clear, SIGNAL(clicked()), this, SLOT(clear_clicked()) );
+  // Will also be connected in the MGUI code
+  g1->addWidget(btn_clear, 1, 2);
+
   // Rec + Shot + Freeze buttons
   btn_rec = createButton("", 8, 3);
   btn_rec->setPixmap(*pix_record);
@@ -253,9 +267,11 @@ void MainWindow::createGui()
   g1->addWidget(btn_freeze, 3, 2);
   
   // History widgets
+  QImage dummy_resized = pix_dummy->smoothScale(240, 192);
+
   for(int i = 0; i < NUM_HISTORY; i++) {
     img_history[i] = new QLabel(gb);
-    img_history[i]->setPixmap(*pix_dummy);
+    img_history[i]->setPixmap(dummy_resized);
     img_history[i]->setFixedSize(240,192);
     //    g2->addWidget(img_history[i], i, 0, Qt::AlignHCenter & Qt::AlignVCenter);
     //    g2->addWidget(img_history[i]);
@@ -339,6 +355,23 @@ void MainWindow::message(char *msg)
   status->message(msg);
 }
 
+void MainWindow::clear_clicked()
+{
+  if(MessageBox(this, 
+                TXT_ASK_CLEAR_SCREEN_TITLE, 
+                TXT_ASK_CLEAR_SCREEN, 
+                TYPE_YES_NO, 
+                ICON_QUESTION).exec() == MSG_YES) {
+
+    // History widgets
+    QImage dummy_resized = pix_dummy->smoothScale(240, 192);
+
+    for(int i = 0; i < NUM_HISTORY; i++) {
+      img_history[i]->setPixmap(dummy_resized);
+    }
+  }
+}
+
 void MainWindow::cpr_clicked()
 {
   char oldcpr[256];
diff --git a/src/mainwindow.h b/src/mainwindow.h
index 1348b5f..790097e 100644
--- a/src/mainwindow.h
+++ b/src/mainwindow.h
@@ -31,6 +31,11 @@
 
 /*
  * $Log$
+ * Revision 1.15  2005/06/02 20:45:01  deva
+ *
+ * Added clear button
+ * Optimized the frame handling a little (very little!).
+ *
  * Revision 1.14  2005/05/23 19:30:36  deva
  * Made some cleanup in the status bar.
  *
@@ -71,6 +76,8 @@ using namespace std;
 #include <qpushbutton.h>
 #include <qstatusbar.h>
 #include <qtimer.h>
+#include <qpixmap.h>
+#include <qimage.h>
 
 #include "videowidget.h"
 #include "camera.h"
@@ -93,7 +100,9 @@ using namespace std;
 Optagelsen standses ved tryk på den røde cirkel med gul streg over."
 #define TXT_TIME "Tid:"
 #define TXT_QUEUELENGTH "Buffer størelse:"
-
+#define TXT_ASK_CLEAR_SCREEN_TITLE "Tøm billedlisten"
+#define TXT_ASK_CLEAR_SCREEN "Er du sikker på at du vil tømme billedlisten?"
+   
 /** 
  * Images
  */
@@ -104,6 +113,7 @@ Optagelsen standses ved tryk på den røde cirkel med gul streg over."
 #define PIXMAP_UNFREEZE   PIXMAPS"/unfreeze.png"
 
 #define PIXMAP_CPR        PIXMAPS"/cpr.png"
+#define PIXMAP_CLEAR      PIXMAPS"/clear.png"
 
 #define PIXMAP_SNAPSHOT   PIXMAPS"/snapshot.png"
 #define PIXMAP_DUMMY      PIXMAPS"/dummy.png"
@@ -120,6 +130,7 @@ public:
 
 public slots:
   void cpr_clicked();
+  void clear_clicked();
   void rec_clicked();
   void shoot_clicked();
   void freeze_clicked();
@@ -138,10 +149,12 @@ private:
   QPixmap *pix_freeze;
   QPixmap *pix_snapshot;
   QPixmap *pix_cpr;
+  QPixmap *pix_clear;
   QPixmap *pix_record;
   QPixmap *pix_stop;
-  QPixmap *pix_dummy;
   QPixmap *pix_logo;
+
+  QImage *pix_dummy;
   
   QLabel *lbl_version;
   QLabel *lbl_cpr;
@@ -159,6 +172,7 @@ private:
   QLabel *img_history[NUM_HISTORY];
   
   QPushButton *btn_logo;
+  QPushButton *btn_clear;
   QPushButton *btn_cpr;
   QPushButton *btn_rec;
   QPushButton *btn_shoot;