erbrowser/src/displayUpdate.cpp File Reference

#include <gdk/gdkx.h>
#include "liberdm/erdm.h"
#include "browserTypes.h"
#include "timingInfo.h"
#include "displayUpdate.h"
#include "browserLog.h"
#include "erbusy.h"

Go to the source code of this file.

Functions
int	display_update_get_level (void)
int	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

---

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.cpp.

{
    int        q = (int) data;
    eDmQuality quality = dmQFull;
        
    if (q == DM_QUALITY_TYPING)
    {
        quality = dmQTyping;
    }

    BR_DISPLAYPRINTF("request screen update (%d)", quality);

#ifdef TIMING_INFORMATION_ENABLED
    timing_display_time_elapsed();
#endif //TIMING_INFORMATION_ENABLED

    // full screen update,
    gdk_threads_enter();
    gdk_flush();
    gdk_flush();
    gdk_threads_leave();

    //not busy any more
    erbusy_off();

#ifdef TIMING_INFORMATION_ENABLED
    timing_display_time_elapsed();
#endif //TIMING_INFORMATION_ENABLED

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

    // return FALSE to remove handler
    return FALSE;
}

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int display_update_get_level

(

void

)

Definition at line 113 of file displayUpdate.cpp.

{
    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 123 of file displayUpdate.cpp.

{
    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 89 of file displayUpdate.cpp.

{
    int     theCurrentLevel = display_update_get_level();
    int     quality = (int) data;
    
    if (quality == 0)
    {
        quality = DM_QUALITY_FULL;
    }

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

    if (level >= theCurrentLevel)
    {
        
        gtk_idle_add(display_update_during_idle_handling, (gpointer) quality);

        //reset the current level
        display_update_reset_level();

    }
    return TRUE;
}

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int display_update_reset_level

(

void

)

Definition at line 118 of file displayUpdate.cpp.

{
    g_currentLevel = LOWEST_LEVEL;
}

---

Variable Documentation

int g_currentLevel = LOWEST_LEVEL [static]

Definition at line 40 of file displayUpdate.cpp.