pcshareMgr/src/displayUpdate.c File Reference

control - application interface with the display manager More...

#include <config.h>
#include <stdio.h>
#include <gtk/gtk.h>
#include "liberdm/erdm.h"
#include "logging.h"
#include "displayUpdate.h"

Go to the source code of this file.

Functions
int	display_update_get_level (void)
void	display_update_reset_level (void)
gboolean	display_update_during_idle_handling (gpointer data)
gboolean	display_update_request_screen_refresh (int level, gpointer data)
void	display_update_increase_level (int level)
Variables
static int	g_currentLevel = LOWEST_LEVEL

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Detailed Description

control - application interface with the display manager

Copyright (C) 2005-2008 iRex Technologies B.V. All rights reserved.

<File description>="">

Definition in file displayUpdate.c.

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Function Documentation

gboolean display_update_during_idle_handling

(

gpointer

data

)

callback : called when GTK in idle mode

Parameters:

data

- indicates where the update request came from (DEBUG reasons)

Returns:

0 (to remove the "idle mode" handler)

Definition at line 53 of file displayUpdate.c.

{
    int     level = (int) data;
    int     nQuality;
    eDmQuality quality;

    //XImage *xi;

    // Extract 
    //   level from data
    //   waveform from data

    level = (int) data & 0x0000FFFF;
    nQuality = (int) data >> 16;
    switch (nQuality)
    {
        case WAVEFORM_BW:
            DL_DMPRINTF("Request for BW waveform");
            quality = dmQBW;
            break;
        case WAVEFORM_TYPING:
            DL_DMPRINTF("Request for Typing waveform");
            quality = dmQTyping;
            break;
        default:
            quality = dmQFull;
    }

    DL_DMPRINTF("\n________________request screen update (%d - %d)_____________", level, quality);

    // full screen update,

    gdk_threads_enter();
    gdk_flush();
    gdk_threads_leave();

    // full screen update,
    dmDisplay(dmCmdPriorNormal, quality);

    // return FALSE to remove handler
    return FALSE;
}

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int display_update_get_level

(

void

)

Definition at line 123 of file displayUpdate.c.

{
    return g_currentLevel;
}

void display_update_increase_level

(

int

level

)

Increase the level value of the screen refresh. Meaning that the screen refresh will only be requested to the displayManager for levels equal or larger then this level value.

Parameters:

level

screen refresh level

Returns:

TRUE on success

Definition at line 133 of file displayUpdate.c.

{
    if (level > g_currentLevel)
    {
        g_currentLevel = level;
    }
}

gboolean display_update_request_screen_refresh	(	int	level,
		gpointer	data
	)

set address of gtk idle callback, where the e-inkt display update is requested

Parameters:

	status	indicates whether or not not used
	data	not used

Returns:

TRUE on success

Definition at line 96 of file displayUpdate.c.

{
    int     theCurrentLevel = display_update_get_level();
    int     waveform;

    waveform = (int) data;

    DL_DMPRINTF("entry level %d currentlevel %d", level, theCurrentLevel);

    if (level >= theCurrentLevel)
    {
        if (waveform != 0)
        {
            DL_DMPRINTF("Special waveform request");
            level += waveform << 16;
        }


        gtk_idle_add(display_update_during_idle_handling, (gpointer) level);

        //reset the current level
        display_update_reset_level();

    }
    return TRUE;
}

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void display_update_reset_level

(

void

)

Definition at line 128 of file displayUpdate.c.

{
    g_currentLevel = LOWEST_LEVEL;
}

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Variable Documentation

int g_currentLevel = LOWEST_LEVEL [static]

Definition at line 40 of file displayUpdate.c.