From 30741368102da5e5a8e4f8b897f2502edfa0165b Mon Sep 17 00:00:00 2001
From: deva <deva>
Date: Wed, 25 May 2005 12:31:59 +0000
Subject: Made info (error message system) work correctly.

---
 src/info_gui.cc | 92 +++++++++++++++++++++++++++------------------------------
 src/info_gui.h  | 21 +++++++++++++
 src/miav.cc     |  9 +++++-
 3 files changed, 73 insertions(+), 49 deletions(-)

(limited to 'src')

diff --git a/src/info_gui.cc b/src/info_gui.cc
index 52bfa5c..b084b00 100644
--- a/src/info_gui.cc
+++ b/src/info_gui.cc
@@ -41,12 +41,28 @@
 #include <stdio.h>
 #include <stdarg.h>
 
-#include "messagebox.h"
+#include <time.h>
+
+bool InfoEventHandler::eventFilter( QObject *o, QEvent *e )
+{
+  if ( e->type() == TYPE_SHOW_MESSAGEBOX ) {
+    fprintf(stderr, "Custom event!\n"); fflush(stderr);
+    MessageBox *msgbox = ((ShowMessageEvent*)e)->messagebox();
+    msgbox->exec();
+    delete msgbox;
+    return TRUE; // eat event
+  } else {
+    // standard event processing
+    return FALSE;
+  }
+}
 
 InfoGui::InfoGui(QApplication *a, QWidget *p): Info()
 {
   qapp = a;
   parent = p;
+
+  pthread_mutex_init (&mutex, NULL);
 }
 
 InfoGui::~InfoGui()
@@ -54,11 +70,34 @@ InfoGui::~InfoGui()
 }
 
 void InfoGui::setParent(QWidget *p)
+{
+  parent = p;
+}
+
+void InfoGui::showmsg(char *msg, char *title, msg_icon icon)
 {
   pthread_mutex_lock(&mutex);
   // Beginning of safezone
 
-  parent = p;
+  fprintf(stderr, "%s: %s\n", title, msg); fflush(stderr);
+
+  while( !parent ) {
+    struct timespec ts;
+
+    ts.tv_sec = 0;
+    ts.tv_nsec = 200000000L;	// 200ms
+    nanosleep(&ts, NULL);
+  }
+
+  MessageBox *msgbox = new MessageBox(parent, 
+                                      title,
+                                      msg, 
+                                      TYPE_OK, 
+                                      icon);
+
+  ShowMessageEvent *event = new ShowMessageEvent( msgbox );
+  
+  qapp->postEvent(parent, event);
 
   // End of safezone
   pthread_mutex_unlock(&mutex);
@@ -68,79 +107,36 @@ void InfoGui::error(char *fmt, ...)
 {
   char buf[1024];
 
-  pthread_mutex_lock(&mutex);
-  // Beginning of safezone
-
 	va_list argp;
 	va_start(argp, fmt);
-  fprintf(stderr, "Error: ["); vfprintf(stderr, fmt, argp); fprintf(stderr, "]\n"); fflush(stderr);
 	vsprintf(buf, fmt, argp);
 	va_end(argp);
 
-  fprintf(stderr, "<!"); fflush(stderr);
-  qapp->lock();
-  fprintf(stderr, "!"); fflush(stderr);
-  MessageBox(parent, 
-             TXT_ERROR_TITLE, 
-             buf, 
-             TYPE_OK, 
-             ICON_ERROR).exec();
-  fprintf(stderr, "!"); fflush(stderr);
-  qapp->unlock();
-  fprintf(stderr, "!>"); fflush(stderr);
-
-  // End of safezone
-  pthread_mutex_unlock(&mutex);
+  showmsg(buf, TXT_ERROR_TITLE, ICON_ERROR);
 }
 
 void InfoGui::warn(char *fmt, ...)
 {
   char buf[1024];
 
-  pthread_mutex_lock(&mutex);
-  // Beginning of safezone
-
 	va_list argp;
 	va_start(argp, fmt);
-  fprintf(stderr, "Warning: ["); vfprintf(stderr, fmt, argp); fprintf(stderr, "]\n"); fflush(stderr);
 	vsprintf(buf, fmt, argp);
 	va_end(argp);
 
-  qapp->lock();
-  MessageBox(parent, 
-             TXT_WARNING_TITLE, 
-             buf, 
-             TYPE_OK, 
-             ICON_WARNING).exec();
-  qapp->unlock();
-
-  // End of safezone
-  pthread_mutex_unlock(&mutex);
+  showmsg(buf, TXT_WARNING_TITLE, ICON_WARNING);
 }
 
 void InfoGui::info(char *fmt, ...)
 {
   char buf[1024];
 
-  pthread_mutex_lock(&mutex);
-  // Beginning of safezone
-
 	va_list argp;
 	va_start(argp, fmt);
-  fprintf(stderr, "Info: ["); vfprintf(stderr, fmt, argp); fprintf(stderr, "]\n"); fflush(stderr);
 	vsprintf(buf, fmt, argp);
 	va_end(argp);
 
-  qapp->lock();
-  MessageBox(parent, 
-             TXT_INFO_TITLE, 
-             buf, 
-             TYPE_OK, 
-             ICON_INFO).exec();
-  qapp->unlock();
-
-  // End of safezone
-  pthread_mutex_unlock(&mutex);
+  showmsg(buf, TXT_INFO_TITLE, ICON_INFO);
 }
 
 #endif/*USE_GUI*/
diff --git a/src/info_gui.h b/src/info_gui.h
index 6547496..8df1985 100644
--- a/src/info_gui.h
+++ b/src/info_gui.h
@@ -51,6 +51,25 @@
 #include <pthread.h>
 #include <semaphore.h>
 
+#include "messagebox.h"
+
+#define TYPE_SHOW_MESSAGEBOX 65432
+
+class ShowMessageEvent : public QCustomEvent {
+public:
+  ShowMessageEvent( MessageBox* msgbox )
+    : QCustomEvent( TYPE_SHOW_MESSAGEBOX ), m( msgbox ) {}
+  MessageBox *messagebox() const { return m; }
+private:
+  MessageBox *m;;
+};
+
+class InfoEventHandler : public QObject {
+protected:
+  bool eventFilter( QObject *o, QEvent *e );
+};
+
+
 class InfoGui: public Info {
 public:
   InfoGui(QApplication *a, QWidget *p);
@@ -63,6 +82,8 @@ public:
   void setParent(QWidget *p);
 
 private:
+  void showmsg(char *msg, char *title, msg_icon icon);
+
   QApplication *qapp;
   QWidget *parent;
   pthread_mutex_t mutex;
diff --git a/src/miav.cc b/src/miav.cc
index 12c63be..d1211f1 100644
--- a/src/miav.cc
+++ b/src/miav.cc
@@ -31,6 +31,10 @@
 
 /*
  * $Log$
+ * Revision 1.12  2005/05/25 12:31:59  deva
+ *
+ * Made info (error message system) work correctly.
+ *
  * Revision 1.11  2005/05/23 18:42:50  deva
  * Error message windows is now modal with mainwindow as its parent.
  *
@@ -89,7 +93,10 @@ int grab(int argc, char *argv[]) {
   InfoGui info(&miav_grab, NULL);
   config = new MiavConfig(ETC"/miav.conf", &info);
 
-  MainWindow mainwindow(&miav_grab);
+  InfoEventHandler *eventhandler = new InfoEventHandler( );
+  miav_grab.installEventFilter( eventhandler );
+  
+  MainWindow mainwindow( &miav_grab );
   miav_grab.setMainWidget( &mainwindow );
 
   info.setParent(&mainwindow);
-- 
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