/*
 * Copyright (c) Tony Bybell 1999-2016.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 */

#include "globals.h"
#include <config.h>
#include <gtk/gtk.h>
#include <string.h>
#include "gtk12compat.h"
#include "debug.h"
#include "analyzer.h"
#include "currenttime.h"

static void gtkwave_strrev(char *p)
{
char *q = p;
while(q && *q) ++q;
for(--q; p < q; ++p, --q)
        *p = *p ^ *q,
        *q = *p ^ *q,
        *p = *p ^ *q;
}


char *make_bijective_marker_id_string(char *buf, unsigned int value)
{
char *pnt = buf;

value++; /* bijective values start at one */
while (value)
        {
        value--;
        *(pnt++) = (char)('A' + value % ('Z'-'A'+1));
        value = value / ('Z'-'A'+1);
        }

*pnt = 0;
gtkwave_strrev(buf);
return(buf);
}


unsigned int bijective_marker_id_string_hash(const char *so)
{
unsigned int val=0;
int i;
int len = strlen(so);
char sn[16];
char *s = sn;

strcpy(sn, so);
gtkwave_strrev(sn);

s += len;
for(i=0;i<len;i++)
        {
	char c = toupper(*(--s));
	if((c < 'A') || (c > 'Z')) break;
        val *= ('Z'-'A'+1);
        val += ((unsigned char)c) - ('A' - 1);
        }

val--; /* bijective values start at one so decrement */
return(val);
}


unsigned int bijective_marker_id_string_len(const char *s)
{
int len = 0;

while(*s)
	{
	char c = toupper(*s);
	if((c >= 'A') && (c <= 'Z'))
		{
		len++;
		s++;
		continue;
		}
		else
		{
		break;
		}
	}

return(len);
}


static void str_change_callback(GtkWidget *entry, gpointer which)
{
G_CONST_RETURN gchar *entry_text;
int i;
uint32_t hashmask =  WAVE_NUM_NAMED_MARKERS;
hashmask |= hashmask >> 1;   
hashmask |= hashmask >> 2;
hashmask |= hashmask >> 4;
hashmask |= hashmask >> 8;
hashmask |= hashmask >> 16;

i = ((int) (((intptr_t) which) & hashmask)) % WAVE_NUM_NAMED_MARKERS;
GLOBALS->dirty_markerbox_c_1 = 1;

entry_text = gtk_entry_get_text(GTK_ENTRY(entry));
if(entry_text && strlen(entry_text))
	{
	if(GLOBALS->shadow_marker_names[i])
		{
		free_2(GLOBALS->shadow_marker_names[i]);
		}

	GLOBALS->shadow_marker_names[i] = strdup_2(entry_text);
	}
	else
	{
	if(GLOBALS->shadow_marker_names[i])
		{
		free_2(GLOBALS->shadow_marker_names[i]);
		GLOBALS->shadow_marker_names[i] = NULL;
		}
	}
}

static void str_enter_callback(GtkWidget *entry, gpointer which)
{
G_CONST_RETURN gchar *entry_text;
int i;
uint32_t hashmask =  WAVE_NUM_NAMED_MARKERS;
hashmask |= hashmask >> 1;   
hashmask |= hashmask >> 2;
hashmask |= hashmask >> 4;
hashmask |= hashmask >> 8;
hashmask |= hashmask >> 16;

i = ((int) (((intptr_t) which) & hashmask)) % WAVE_NUM_NAMED_MARKERS;
GLOBALS->dirty_markerbox_c_1 = 1;

entry_text = gtk_entry_get_text(GTK_ENTRY(entry));
if(entry_text && strlen(entry_text))
	{
	if(GLOBALS->shadow_marker_names[i])
		{
		free_2(GLOBALS->shadow_marker_names[i]);
		}

	GLOBALS->shadow_marker_names[i] = strdup_2(entry_text);
	gtk_entry_select_region (GTK_ENTRY (entry),
                             0, GTK_ENTRY(entry)->text_length);

	}
	else
	{
	if(GLOBALS->shadow_marker_names[i])
		{
		free_2(GLOBALS->shadow_marker_names[i]);
		GLOBALS->shadow_marker_names[i] = NULL;
		}
	}
}


static void change_callback(GtkWidget *widget, gpointer which)
{
(void)widget;

GtkWidget *entry;
TimeType temp;
G_CONST_RETURN gchar *entry_text;
char buf[49];
int i;
int ent_idx;
uint32_t hashmask =  WAVE_NUM_NAMED_MARKERS;
hashmask |= hashmask >> 1;   
hashmask |= hashmask >> 2;
hashmask |= hashmask >> 4;
hashmask |= hashmask >> 8;
hashmask |= hashmask >> 16;

ent_idx = ((int) (((intptr_t) which) & hashmask)) % WAVE_NUM_NAMED_MARKERS;

entry=GLOBALS->entries_markerbox_c_1[ent_idx];

entry_text = gtk_entry_get_text(GTK_ENTRY(entry));
entry_text = entry_text ? entry_text : "";
if(!strlen(entry_text)) goto failure;
if(entry_text[0] != '-')
	{
	if(!isdigit((int)(unsigned char)entry_text[0])) goto failure;
	}

temp=unformat_time(entry_text, GLOBALS->time_dimension);
temp -= GLOBALS->global_time_offset;
if((temp<GLOBALS->tims.start)||(temp>GLOBALS->tims.last)) goto failure;

for(i=0;i<WAVE_NUM_NAMED_MARKERS;i++)
        {
        if(temp==GLOBALS->shadow_markers_markerbox_c_1[i])
		{
		if(i!=ent_idx)
			{
			GLOBALS->shadow_markers_markerbox_c_1[ent_idx] = -1;
			}
		goto failure;
		}
        }

reformat_time_simple(buf, temp + GLOBALS->global_time_offset, GLOBALS->time_dimension);

GLOBALS->shadow_markers_markerbox_c_1[ent_idx]=temp;
GLOBALS->dirty_markerbox_c_1=1;

failure:
return;
}

static void enter_callback(GtkWidget *widget, gpointer which)
{
(void)widget;

GtkWidget *entry;
/* TimeType *modify; */ /* scan-build */
TimeType temp;
G_CONST_RETURN gchar *entry_text;
char buf[49];
int i;
int ent_idx;
uint32_t hashmask =  WAVE_NUM_NAMED_MARKERS;
hashmask |= hashmask >> 1;   
hashmask |= hashmask >> 2;
hashmask |= hashmask >> 4;
hashmask |= hashmask >> 8;
hashmask |= hashmask >> 16;

ent_idx = ((int) (((intptr_t) which) & hashmask)) % WAVE_NUM_NAMED_MARKERS;

entry=GLOBALS->entries_markerbox_c_1[ent_idx];

entry_text = gtk_entry_get_text(GTK_ENTRY(entry));
entry_text = entry_text ? entry_text : "";
if(!strlen(entry_text)) goto failure;

temp=unformat_time(entry_text, GLOBALS->time_dimension);
temp -= GLOBALS->global_time_offset;
if((temp<GLOBALS->tims.start)||(temp>GLOBALS->tims.last)) goto failure;

for(i=0;i<WAVE_NUM_NAMED_MARKERS;i++)
        {
        if(temp==GLOBALS->shadow_markers_markerbox_c_1[i]) goto failure;
        }

reformat_time_simple(buf, temp +  GLOBALS->global_time_offset, GLOBALS->time_dimension);
gtk_entry_set_text (GTK_ENTRY (entry), buf);

GLOBALS->shadow_markers_markerbox_c_1[ent_idx]=temp;
GLOBALS->dirty_markerbox_c_1=1;
gtk_entry_select_region (GTK_ENTRY (entry),
			     0, GTK_ENTRY(entry)->text_length);
return;

failure:
/* modify=(TimeType *)which; */ /* scan-build */
if(GLOBALS->shadow_markers_markerbox_c_1[ent_idx]==-1)
	{
	sprintf(buf,"<None>");
	}
	else
	{
	reformat_time_simple(buf, GLOBALS->shadow_markers_markerbox_c_1[ent_idx] + GLOBALS->global_time_offset, GLOBALS->time_dimension);
	}
gtk_entry_set_text (GTK_ENTRY (entry), buf);
}

static void ok_callback(GtkWidget *widget, GtkWidget *nothing)
{
(void)widget;
(void)nothing;

if(GLOBALS->dirty_markerbox_c_1)
	{
	int i;
	for(i=0;i<WAVE_NUM_NAMED_MARKERS;i++)
		{
		GLOBALS->named_markers[i]=GLOBALS->shadow_markers_markerbox_c_1[i];
		if(GLOBALS->marker_names[i]) free_2(GLOBALS->marker_names[i]);
		GLOBALS->marker_names[i] = GLOBALS->shadow_marker_names[i];
		GLOBALS->shadow_marker_names[i] = NULL;
		}
        MaxSignalLength();
        signalarea_configure_event(GLOBALS->signalarea, NULL);
        wavearea_configure_event(GLOBALS->wavearea, NULL);
	}

  wave_gtk_grab_remove(GLOBALS->window_markerbox_c_4);
  gtk_widget_destroy(GLOBALS->window_markerbox_c_4);
  GLOBALS->window_markerbox_c_4 = NULL;

  GLOBALS->cleanup_markerbox_c_4();
}

static void destroy_callback(GtkWidget *widget, GtkWidget *nothing)
{
(void)widget;
(void)nothing;

int i;
  for(i=0;i<WAVE_NUM_NAMED_MARKERS;i++)
	{
	if(GLOBALS->marker_names[i]) free_2(GLOBALS->marker_names[i]);
  	GLOBALS->marker_names[i] = GLOBALS->shadow_marker_names[i];
  	GLOBALS->shadow_marker_names[i] = NULL;
	}

  wave_gtk_grab_remove(GLOBALS->window_markerbox_c_4);
  gtk_widget_destroy(GLOBALS->window_markerbox_c_4);
  GLOBALS->window_markerbox_c_4 = NULL;
}

void markerbox(char *title, GtkSignalFunc func)
{
    GtkWidget *entry;
    GtkWidget *vbox, *hbox, *vbox_g, *label;
    GtkWidget *button1, *button2, *scrolled_win, *frame, *separator;
    GtkWidget *table;
    char labtitle[16];
    int i;

    GLOBALS->cleanup_markerbox_c_4=func;
    GLOBALS->dirty_markerbox_c_1=0;

    for(i=0;i<WAVE_NUM_NAMED_MARKERS;i++)
	{
	GLOBALS->shadow_markers_markerbox_c_1[i] = GLOBALS->named_markers[i];
	GLOBALS->shadow_marker_names[i] = strdup_2(GLOBALS->marker_names[i]);
	}

    /* fix problem where ungrab doesn't occur if button pressed + simultaneous accelerator key occurs */
    if(GLOBALS->in_button_press_wavewindow_c_1) { gdk_pointer_ungrab(GDK_CURRENT_TIME); }

    /* create a new modal window */
    GLOBALS->window_markerbox_c_4 = gtk_window_new(GLOBALS->disable_window_manager ? GTK_WINDOW_POPUP : GTK_WINDOW_TOPLEVEL);
    install_focus_cb(GLOBALS->window_markerbox_c_4, ((char *)&GLOBALS->window_markerbox_c_4) - ((char *)GLOBALS));

    gtk_window_set_title(GTK_WINDOW (GLOBALS->window_markerbox_c_4), title);
    gtkwave_signal_connect(GTK_OBJECT (GLOBALS->window_markerbox_c_4), "delete_event",(GtkSignalFunc) destroy_callback, NULL);

    vbox = gtk_vbox_new (FALSE, 0);
    gtk_widget_show (vbox);

    vbox_g = gtk_vbox_new (FALSE, 0);
    gtk_widget_show (vbox_g);

    table = gtk_table_new (256, 1, FALSE);
    gtk_widget_show (table);

    gtk_table_attach (GTK_TABLE (table), vbox, 0, 1, 0, 255,
                        GTK_FILL | GTK_EXPAND,
                        GTK_FILL | GTK_EXPAND | GTK_SHRINK, 1, 1);

    frame = gtk_frame_new (NULL);
    gtk_container_border_width (GTK_CONTAINER (frame), 3);
    gtk_widget_show(frame);

    scrolled_win = gtk_scrolled_window_new (NULL, NULL);
    gtk_widget_set_usize( GTK_WIDGET (scrolled_win), 400, 300);
    gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_win),
                                      GTK_POLICY_AUTOMATIC,
                                      GTK_POLICY_AUTOMATIC);
    gtk_widget_show(scrolled_win);
    gtk_container_add (GTK_CONTAINER (frame), scrolled_win);
    gtk_container_add (GTK_CONTAINER (vbox), frame);

    for(i=0;i<WAVE_NUM_NAMED_MARKERS;i++)
    {
    char buf[49];

    if(i)
	{
    	separator = gtk_hseparator_new ();
        gtk_widget_show (separator);
        gtk_box_pack_start (GTK_BOX (vbox_g), separator, TRUE, TRUE, 0);
	}


    make_bijective_marker_id_string(labtitle, i);
    label=gtk_label_new(labtitle);
    gtk_widget_show (label);
    gtk_box_pack_start (GTK_BOX (vbox_g), label, TRUE, TRUE, 0);

    hbox = gtk_hbox_new(FALSE, 0);
    gtk_widget_show (hbox);

    GLOBALS->entries_markerbox_c_1[i]=entry = gtk_entry_new_with_max_length (48);
    gtkwave_signal_connect(GTK_OBJECT(entry), "activate", GTK_SIGNAL_FUNC(enter_callback), (void *)((intptr_t) i));
    gtkwave_signal_connect(GTK_OBJECT(entry), "changed", GTK_SIGNAL_FUNC(change_callback), (void *)((intptr_t) i));
    if(GLOBALS->shadow_markers_markerbox_c_1[i]==-1)
	{
	sprintf(buf,"<None>");
	}
	else
	{
	reformat_time_simple(buf, GLOBALS->shadow_markers_markerbox_c_1[i] + GLOBALS->global_time_offset, GLOBALS->time_dimension);
	}

    gtk_entry_set_text (GTK_ENTRY (entry), buf);
    gtk_widget_show (entry);
    gtk_box_pack_start (GTK_BOX (hbox), entry, TRUE, TRUE, 0);

    /* string part */
    entry = gtk_entry_new_with_max_length (48);
    if(GLOBALS->shadow_marker_names[i]) gtk_entry_set_text (GTK_ENTRY (entry), GLOBALS->shadow_marker_names[i]);
    gtk_widget_show (entry);
    gtkwave_signal_connect(GTK_OBJECT(entry), "activate", GTK_SIGNAL_FUNC(str_enter_callback), (void *)((intptr_t) i));
    gtkwave_signal_connect(GTK_OBJECT(entry), "changed", GTK_SIGNAL_FUNC(str_change_callback), (void *)((intptr_t) i));

    gtk_box_pack_start (GTK_BOX (hbox), entry, TRUE, TRUE, 0);


    gtk_box_pack_start (GTK_BOX (vbox_g), hbox, TRUE, TRUE, 0);
    }

    gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(scrolled_win), vbox_g);

    hbox = gtk_hbox_new (FALSE, 1);
    gtk_widget_show (hbox);

    gtk_table_attach (GTK_TABLE (table), hbox, 0, 1, 255, 256,
                        GTK_FILL | GTK_EXPAND,
                        GTK_FILL | GTK_EXPAND | GTK_SHRINK, 1, 1);

    button1 = gtk_button_new_with_label ("OK");
    gtk_widget_set_usize(button1, 100, -1);
    gtkwave_signal_connect(GTK_OBJECT (button1), "clicked", GTK_SIGNAL_FUNC(ok_callback), NULL);
    gtk_widget_show (button1);
    gtk_container_add (GTK_CONTAINER (hbox), button1);
    GTK_WIDGET_SET_FLAGS (button1, GTK_CAN_DEFAULT);
    gtkwave_signal_connect_object (GTK_OBJECT (button1), "realize", (GtkSignalFunc) gtk_widget_grab_default, GTK_OBJECT (button1));


    button2 = gtk_button_new_with_label ("Cancel");
    gtk_widget_set_usize(button2, 100, -1);
    gtkwave_signal_connect(GTK_OBJECT (button2), "clicked", GTK_SIGNAL_FUNC(destroy_callback), NULL);
    GTK_WIDGET_SET_FLAGS (button2, GTK_CAN_DEFAULT);
    gtk_widget_show (button2);
    gtk_container_add (GTK_CONTAINER (hbox), button2);

    gtk_container_add (GTK_CONTAINER (GLOBALS->window_markerbox_c_4), table); /* need this table to keep ok/cancel buttons from stretching! */
    gtk_widget_show(GLOBALS->window_markerbox_c_4);
    wave_gtk_grab_add(GLOBALS->window_markerbox_c_4);
}