WinGtkMsg.cxx File Reference

GTK dialog and status windowing functions. More...

#include <sys/types.h>
#include <stdarg.h>
#include <libgen.h>
#include <stdlib.h>
#include <unistd.h>
#include <cstring>
#include <iostream>
#include <fstream>
#include <cmath>
#include "rnr/rnrconfig.h"
#include "rnr/log.h"
#include "opencv2/core/core.hpp"
#include "opencv/highgui/highgui.hpp"
#include <gtk/gtk.h>
#include "rnr/appkit/Win.h"

Go to the source code of this file.

Functions
static gboolean	SBTimerAlarm (gpointer user_data)
static void	SBTimerStart (uint_t uMSec)
	Start the Status Bar timer. More...
static void	SBTimerStop ()
	Stop the Status Bar timer.
void	SBFrameEvent (GtkWindow *window, GdkEvent *event, gpointer data)
	Capture frame event for status bar. More...
gboolean	SBOnWindowState (GtkWidget *w, GdkEventKey *event, gpointer *user_data)
	Window state change event handler. More...
static void	CreateStatusBar (rnrWindow *pWin)
	Create status bar. More...

Variables
static GtkWidget *	SBWidget = NULL
	status bar gtk widget
static bool	SBIsVisible = false
	status bar is [not] visible
static GtkWindow *	SBWindow = NULL
	status bar gtk window
static GtkWidget *	SBLabelWidget = NULL
	status bar label gtk widget
static CvRect	SBWinGeom = {0, }
	status bar window geometry
guint	SBTimerId = 0
	statue bar timer

Detailed Description

GTK dialog and status windowing functions.

LastChangedDate

2013-05-03 07:45:13 -0600 (Fri, 03 May 2013)

Rev

2904

Author

Robin Knight (robin.nosp@m..kni.nosp@m.ght@r.nosp@m.oadn.nosp@m.arrow.nosp@m.s.co.nosp@m.m)

Daniel Packard (danie.nosp@m.l@ro.nosp@m.adnar.nosp@m.rows.nosp@m..com)

Copyright

© 2011-2017. RoadNarrows LLC.
http://www.roadnarrows.com
All Rights Reserved

Definition in file WinGtkMsg.cxx.

Function Documentation

static void CreateStatusBar ( rnrWindow *  pWin )

static

Create status bar.

Parameters

pWin	Application window.

Definition at line 281 of file WinGtkMsg.cxx.

References SBIsVisible, SBLabelWidget, SBOnWindowState(), SBTimerId, SBTimerStart(), SBTimerStop(), SBWidget, SBWindow, and SBWinGeom.

{
  static int  h_status = 20;  // status window height

  GtkWindow  *wWindow;    // gtk window
  GdkColor    color;      // background color
  int         x_root;     // parent screen x position
  int         y_root;     // parent screen y position
  int         w_root;     // parent width
  int         h_root;     // parent height

  // get parent position and size
  wWindow = pWin->GetMainWindowWidget();
  gtk_window_get_position(wWindow, &x_root, &y_root);
  gtk_window_get_size(wWindow, &w_root, &h_root);

  // background color
  gdk_color_parse("#ffffcf", &color);

  // status bar window
  SBWidget          = gtk_window_new(GTK_WINDOW_POPUP);
  SBWindow          = GTK_WINDOW(SBWidget);
  SBWinGeom.x       = x_root;
  SBWinGeom.y       = y_root + h_root - h_status;
  SBWinGeom.width   = w_root;
  SBWinGeom.height  = h_status;

  gtk_window_set_keep_above(SBWindow, true);
  gtk_window_resize(SBWindow, SBWinGeom.width, SBWinGeom.height);
  gtk_window_move(SBWindow, SBWinGeom.x, SBWinGeom.y);
  //gtk_window_set_resizable(SBWindow, false); // cannot use
  gtk_window_set_decorated(SBWindow, false);
  gtk_widget_modify_bg(SBWidget, GTK_STATE_NORMAL, &color);
  gtk_widget_modify_base(SBWidget, GTK_STATE_NORMAL, &color);

  // status bar label widget
  SBLabelWidget = gtk_label_new(NULL);
  gtk_container_add(GTK_CONTAINER(SBWindow), SBLabelWidget);

  //g_signal_connect(G_OBJECT(SBLabelWidget), "frame-event", 
  //    G_CALLBACK(SBFrameEvent), (void *)"frame-event");
 
  gtk_signal_connect(GTK_OBJECT(SBWidget), "window-state-event",
                        GTK_SIGNAL_FUNC(SBOnWindowState), NULL);

  gtk_widget_add_events(SBWidget, GDK_EXPOSURE_MASK |
                                  GDK_BUTTON_RELEASE_MASK |
                                  GDK_BUTTON_PRESS_MASK |
                                  GDK_POINTER_MOTION_MASK);
}

void SBFrameEvent	(	GtkWindow *	window,
		GdkEvent *	event,
		gpointer	data
	)

Capture frame event for status bar.

Note

Cannot seem to get this to work.

Parameters

window	GTK window.
event	The event (e.g. mouse click)
data	Application data.

Definition at line 254 of file WinGtkMsg.cxx.

{
  char *s = (char *)data;
  //cerr << "dbg: " << event << ", " << s << endl;
}

gboolean SBOnWindowState	(	GtkWidget *	w,
		GdkEventKey *	event,
		gpointer *	user_data
	)

Window state change event handler.

Parameters

w	Widget where keyboard event occurred.
event	State change event.
user_data	Supplied user data.

Returns

Returns FALSE.

Definition at line 269 of file WinGtkMsg.cxx.

Referenced by CreateStatusBar().

{
  //cerr << "dbg: " << event << endl;
}

static void SBTimerStart ( uint_t  uMSec )

static

Start the Status Bar timer.

Parameters

uMSec

Timeout in milliseconds.

Definition at line 226 of file WinGtkMsg.cxx.

References SBTimerId.

Referenced by CreateStatusBar().

{
  SBTimerId = g_timeout_add(uMSec, SBTimerAlarm, NULL);
}