/*
 *                            COPYRIGHT
 *
 *  pcb-rnd, interactive printed circuit board design
 *  Copyright (C) 1994,1995,1996 Thomas Nau
 *  Copyright (C) 1997, 1998, 1999, 2000, 2001 Harry Eaton
 *  Copyright (C) 2017,2019 Tibor 'Igor2' Palinkas
 *
 *  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.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 *  Contact:
 *    Project page: http://repo.hu/projects/pcb-rnd
 *    lead developer: http://repo.hu/projects/pcb-rnd/contact.html
 *    mailing list: pcb-rnd (at) list.repo.hu (send "subscribe")
 *
 *
 *  Old contact info:
 *  Harry Eaton, 6697 Buttonhole Ct, Columbia, MD 21044, USA
 *  haceaton@aplcomm.jhuapl.edu
 *
 */

#include "config.h"

#include "conf_core.h"
#include <librnd/core/rnd_conf.h>

#include "board.h"
#include "crosshair.h"
#include "data.h"
#include "draw.h"
#include "draw_wireframe.h"
#include "find.h"
#include "obj_line.h"
#include "obj_subc.h"
#include "search.h"
#include <librnd/hid/tool.h>
#include "undo.h"
#include "netlist.h"
#include "tool_logic.h"

#include "obj_line_draw.h"
#include "obj_pstk_draw.h"
#include "obj_rat_draw.h"
#include "route_draw.h"

static pcb_layer_t *last_layer;

void pcb_tool_line_init(void)
{
	rnd_hid_notify_crosshair_change(&PCB->hidlib, rnd_false);
	if (rnd_tool_prev_id == pcb_crosshair.tool_arc && pcb_crosshair.AttachedBox.State != PCB_CH_STATE_FIRST) {
		pcb_crosshair.AttachedBox.State = PCB_CH_STATE_FIRST;
		pcb_crosshair.AttachedLine.State = PCB_CH_STATE_SECOND;
		pcb_crosshair.AttachedLine.Point1.X = pcb_crosshair.AttachedLine.Point2.X = pcb_crosshair.AttachedBox.Point1.X;
		pcb_crosshair.AttachedLine.Point1.Y = pcb_crosshair.AttachedLine.Point2.Y = pcb_crosshair.AttachedBox.Point1.Y;
		rnd_tool_adjust_attached(NULL);
	}
	else {
		if (conf_core.editor.auto_drc) {
			if (pcb_data_clear_flag(PCB->Data, PCB_FLAG_FOUND, 1, 1) > 0) {
				pcb_undo_inc_serial();
				pcb_draw();
			}
		}
	}
	rnd_hid_notify_crosshair_change(&PCB->hidlib, rnd_true);
}

void pcb_tool_line_uninit(void)
{
	rnd_hid_notify_crosshair_change(&PCB->hidlib, rnd_false);
	pcb_added_lines = 0;
	pcb_route_reset(&pcb_crosshair.Route);
	if (rnd_tool_next_id != pcb_crosshair.tool_arc) {
		pcb_crosshair.AttachedLine.State = PCB_CH_STATE_FIRST;
		if (!pcb_marked.user_placed)
			pcb_crosshair_set_local_ref(0, 0, rnd_false);
	}
	rnd_hid_notify_crosshair_change(&PCB->hidlib, rnd_true);
}

/* creates points of a line (when clicked) */
static void notify_line(rnd_design_t *hl)
{
	int type = PCB_OBJ_VOID;
	void *ptr1, *ptr2, *ptr3;
	pcb_board_t *pcb = (pcb_board_t *)hl;

	if ((!pcb_marked.status || conf_core.editor.local_ref) && !pcb_marked.user_placed)
			pcb_crosshair_set_local_ref(pcb_crosshair.X, pcb_crosshair.Y, rnd_true);
	switch (pcb_crosshair.AttachedLine.State) {
	case PCB_CH_STATE_FIRST:						/* first point */
		if (pcb->RatDraw) {
			/* prefer light terminal but also check for heavy terminals */
			if ((type = pcb_search_screen(pcb_crosshair.X, pcb_crosshair.Y, PCB_OBJ_PSTK | PCB_OBJ_SUBC_PART, &ptr1, &ptr2, &ptr3)) == PCB_OBJ_VOID)
				type = pcb_search_screen(pcb_crosshair.X, pcb_crosshair.Y, PCB_OBJ_LINE | PCB_OBJ_ARC | PCB_OBJ_POLY | PCB_OBJ_SUBC_PART, &ptr1, &ptr2, &ptr3);
			/* but make sure it is a terminal, not a via or plain object */
			if ((type == PCB_OBJ_VOID) || (((pcb_any_obj_t *)ptr2)->term == NULL))
				break;
		}
		if (conf_core.editor.auto_drc) {
			pcb_find_t fctx;
			if (type == PCB_OBJ_VOID)
				type = pcb_search_screen(pcb_crosshair.X, pcb_crosshair.Y, PCB_OBJ_PSTK | PCB_OBJ_SUBC_PART, &ptr1, &ptr2, &ptr3);
			memset(&fctx, 0, sizeof(fctx));
			fctx.flag_set = PCB_FLAG_FOUND;
			fctx.flag_chg_undoable = 1;
				fctx.consider_rats = 1;
			pcb_find_from_xy(&fctx, pcb->Data, pcb_crosshair.X, pcb_crosshair.Y);
			pcb_find_free(&fctx);
		}
		if (type == PCB_OBJ_PSTK) {
			pcb_pstk_t *pstk = (pcb_pstk_t *)ptr2;
			pcb_crosshair.AttachedLine.Point1.X = pstk->x;
			pcb_crosshair.AttachedLine.Point1.Y = pstk->y;
		}
		else {
			pcb_crosshair.AttachedLine.Point1.X = pcb_crosshair.AttachedLine.Point2.X = pcb_crosshair.X;
			pcb_crosshair.AttachedLine.Point1.Y = pcb_crosshair.AttachedLine.Point2.Y = pcb_crosshair.Y;
		}
		pcb_crosshair.AttachedLine.State = PCB_CH_STATE_SECOND;
		break;

	case PCB_CH_STATE_SECOND:
		/* fall through to third state too */
		last_layer = PCB_CURRLAYER(pcb);
	default:											/* all following points */
		pcb_crosshair.AttachedLine.State = PCB_CH_STATE_THIRD;
		break;
	}
}

void pcb_tool_line_notify_mode(rnd_design_t *hl)
{
	void *ptr1, *ptr2, *ptr3;
	pcb_board_t *pcb = (pcb_board_t *)hl;

	/* do update of position */
	notify_line(hl);
	if (pcb_crosshair.AttachedLine.State != PCB_CH_STATE_THIRD)
		return;
	/* Remove anchor if clicking on start point;
	 * this means we can't paint 0 length lines
	 * which could be used for square SMD pads.
	 * Instead use a very small delta, or change
	 * the file after saving.
	 */
	if (pcb_crosshair.X == pcb_crosshair.AttachedLine.Point1.X && pcb_crosshair.Y == pcb_crosshair.AttachedLine.Point1.Y) {
		rnd_tool_select_by_name(hl, "line");
		return;
	}

	if (pcb->RatDraw) {
		pcb_rat_t *line = pcb_net_create_by_rat_coords(pcb, pcb_crosshair.AttachedLine.Point1.X, pcb_crosshair.AttachedLine.Point1.Y, pcb_crosshair.AttachedLine.Point2.X, pcb_crosshair.AttachedLine.Point2.Y, 1);

		if (line != NULL) {
			pcb_added_lines++;
			pcb_undo_add_obj_to_create(PCB_OBJ_RAT, line, line, line);
			pcb_undo_inc_serial();
			pcb_rat_invalidate_draw(line);
			pcb_crosshair.AttachedLine.Point1.X = pcb_crosshair.AttachedLine.Point2.X;
			pcb_crosshair.AttachedLine.Point1.Y = pcb_crosshair.AttachedLine.Point2.Y;
			pcb_draw();
		}
		return;
	}
	else if(pcb_crosshair.Route.size > 0)
	{
		pcb_pstk_t *ps = NULL;
		rnd_coord_t via_dia2 = pcb_pstk_pen_dia(PCB) / 2;

		/* place a via if vias are visible, the layer is
			 in a new group since the last line and there
			 isn't a pin already here */
		if (conf_core.editor.auto_via && pcb->pstk_on
				&& pcb_layer_get_group_(PCB_CURRLAYER(pcb)) != pcb_layer_get_group_(last_layer)
				&& pcb_search_obj_by_location(PCB_OBJ_CLASS_PIN, &ptr1, &ptr2, &ptr3,
																			pcb_crosshair.AttachedLine.Point1.X,
																			pcb_crosshair.AttachedLine.Point1.Y,
																			via_dia2) ==
																				PCB_OBJ_VOID
				&& (pcb_layer_flags_(PCB_CURRLAYER(pcb)) & PCB_LYT_COPPER)
				&& (pcb_layer_flags_(last_layer) & PCB_LYT_COPPER)
				&& (!pcb->is_footprint)
				&& ((ps = pcb_pstk_new(pcb->Data, -1, conf_core.design.via_proto, pcb_crosshair.AttachedLine.Point1.X, pcb_crosshair.AttachedLine.Point1.Y, conf_core.design.clearance, pcb_flag_make(PCB_FLAG_CLEARLINE))) != NULL)) {
					pcb_obj_add_attribs((pcb_any_obj_t *)ps, pcb->pen_attr, NULL);
					pcb_undo_add_obj_to_create(PCB_OBJ_PSTK, ps, ps, ps);
		}

		/* Add the route to the design */
		pcb_route_apply(&pcb_crosshair.Route);

		/* move to new start point */
		pcb_crosshair.AttachedLine.Point1.X = pcb_crosshair.Route.end_point.X;
		pcb_crosshair.AttachedLine.Point1.Y = pcb_crosshair.Route.end_point.Y;
		pcb_crosshair.AttachedLine.Point2.X = pcb_crosshair.Route.end_point.X;
		pcb_crosshair.AttachedLine.Point2.Y = pcb_crosshair.Route.end_point.Y;

		/* automatic swap of line refraction after each click - should work only if refraction is in effect (no ortho, no alldir) */
		if (conf_core.editor.swap_start_direction && (conf_core.editor.line_refraction != 0) && !conf_core.editor.all_direction_lines)
			rnd_conf_setf(RND_CFR_DESIGN,"editor/line_refraction", -1, "%d",conf_core.editor.line_refraction ^ 3);

		if (conf_core.editor.orthogonal_moves) {
			/* set the mark to the new starting point so ortho works as expected and we can draw a perpendicular line from here */
			hl->tool_grabbed.X = pcb_crosshair.Route.end_point.X;
			hl->tool_grabbed.Y = pcb_crosshair.Route.end_point.Y;
			hl->tool_grabbed.status = rnd_true;
		}

		if (ps)
			pcb_pstk_invalidate_draw(ps);

		pcb_draw();
		pcb_undo_inc_serial();
		last_layer = PCB_CURRLAYER(pcb);
	}
	else
		/* create line if both ends are determined && length != 0 */
	{
		pcb_line_t *line;
		int maybe_found_flag;

		if (conf_core.editor.line_refraction
				&& pcb_crosshair.AttachedLine.Point1.X ==
				pcb_crosshair.AttachedLine.Point2.X
				&& pcb_crosshair.AttachedLine.Point1.Y ==
				pcb_crosshair.AttachedLine.Point2.Y
				&& (pcb_crosshair.AttachedLine.Point2.X != hl->tool_x || pcb_crosshair.AttachedLine.Point2.Y != hl->tool_y)) {
			/* We will only need to paint the second line segment.
				 Since we only check for vias on the first segment,
				 swap them so the non-empty segment is the first segment. */
			pcb_crosshair.AttachedLine.Point2.X = hl->tool_x;
			pcb_crosshair.AttachedLine.Point2.Y = hl->tool_y;
		}

		if (conf_core.editor.auto_drc
				&& (pcb_layer_flags_(PCB_CURRLAYER(pcb)) & PCB_LYT_COPPER))
			maybe_found_flag = PCB_FLAG_FOUND;
		else
			maybe_found_flag = 0;

		if ((pcb_crosshair.AttachedLine.Point1.X !=
				 pcb_crosshair.AttachedLine.Point2.X || pcb_crosshair.AttachedLine.Point1.Y != pcb_crosshair.AttachedLine.Point2.Y)
				&& (line =
						pcb_line_new_merge(pcb_loose_subc_layer(pcb, PCB_CURRLAYER(pcb), rnd_true),
																	 pcb_crosshair.AttachedLine.Point1.X,
																	 pcb_crosshair.AttachedLine.Point1.Y,
																	 pcb_crosshair.AttachedLine.Point2.X,
																	 pcb_crosshair.AttachedLine.Point2.Y,
																	 conf_core.design.line_thickness,
																	 2 * conf_core.design.clearance,
																	 pcb_flag_make(maybe_found_flag |
																						 (conf_core.editor.clear_line ? PCB_FLAG_CLEARLINE : 0)))) != NULL) {
			pcb_pstk_t *ps = NULL;
			rnd_coord_t via_dia2 = pcb_pstk_pen_dia(PCB) / 2;

			pcb_added_lines++;
			pcb_obj_add_attribs((pcb_any_obj_t *)line, pcb->pen_attr, NULL);
			pcb_undo_add_obj_to_create(PCB_OBJ_LINE, PCB_CURRLAYER(pcb), line, line);
			pcb_line_invalidate_draw(PCB_CURRLAYER(pcb), line);
			/* place a via if vias are visible, the layer is
				 in a new group since the last line and there
				 isn't a pin already here */
			if (pcb->pstk_on
					&& pcb_layer_get_group_(PCB_CURRLAYER(pcb)) != pcb_layer_get_group_(last_layer) 
					&& (pcb_layer_flags_(PCB_CURRLAYER(pcb)) & PCB_LYT_COPPER)
					&& (pcb_layer_flags_(last_layer) & PCB_LYT_COPPER)
					&& (!pcb->is_footprint)
					&& pcb_search_obj_by_location(PCB_OBJ_CLASS_PIN, &ptr1, &ptr2, &ptr3,
																 pcb_crosshair.AttachedLine.Point1.X,
																 pcb_crosshair.AttachedLine.Point1.Y,
																 via_dia2) == PCB_OBJ_VOID
					&& ((ps = pcb_pstk_new(pcb->Data, -1, conf_core.design.via_proto, pcb_crosshair.AttachedLine.Point1.X, pcb_crosshair.AttachedLine.Point1.Y, conf_core.design.clearance, pcb_flag_make(PCB_FLAG_CLEARLINE))) != NULL)) {
				pcb_obj_add_attribs((pcb_any_obj_t *)ps, pcb->pen_attr, NULL);
				pcb_undo_add_obj_to_create(PCB_OBJ_PSTK, ps, ps, ps);
				pcb_pstk_invalidate_draw(ps);
			}
			/* copy the coordinates */
			pcb_crosshair.AttachedLine.Point1.X = pcb_crosshair.AttachedLine.Point2.X;
			pcb_crosshair.AttachedLine.Point1.Y = pcb_crosshair.AttachedLine.Point2.Y;
			pcb_undo_inc_serial();
			last_layer = PCB_CURRLAYER(pcb);
			pcb_subc_as_board_update(PCB);
		}
		if (conf_core.editor.line_refraction && (hl->tool_x != pcb_crosshair.AttachedLine.Point2.X || hl->tool_y != pcb_crosshair.AttachedLine.Point2.Y)
				&& (line =
						pcb_line_new_merge(pcb_loose_subc_layer(pcb, PCB_CURRLAYER(pcb), rnd_true),
																	 pcb_crosshair.AttachedLine.Point2.X,
																	 pcb_crosshair.AttachedLine.Point2.Y,
																	 hl->tool_x, hl->tool_y,
																	 conf_core.design.line_thickness,
																	 2 * conf_core.design.clearance,
																	 pcb_flag_make((conf_core.editor.auto_drc ? PCB_FLAG_FOUND : 0) |
																						 (conf_core.editor.clear_line ? PCB_FLAG_CLEARLINE : 0)))) != NULL) {
			pcb_added_lines++;
			pcb_obj_add_attribs((pcb_any_obj_t *)line, pcb->pen_attr, NULL);
			pcb_undo_add_obj_to_create(PCB_OBJ_LINE, PCB_CURRLAYER(pcb), line, line);
			pcb_undo_inc_serial();
			pcb_line_invalidate_draw(PCB_CURRLAYER(pcb), line);
			/* move to new start point */
			pcb_crosshair.AttachedLine.Point1.X = hl->tool_x;
			pcb_crosshair.AttachedLine.Point1.Y = hl->tool_y;
			pcb_crosshair.AttachedLine.Point2.X = hl->tool_x;
			pcb_crosshair.AttachedLine.Point2.Y = hl->tool_y;


			if (conf_core.editor.swap_start_direction) {
				rnd_conf_setf(RND_CFR_DESIGN,"editor/line_refraction", -1, "%d",conf_core.editor.line_refraction ^ 3);
			}
			pcb_subc_as_board_update(PCB);
		}
		if (conf_core.editor.orthogonal_moves) {
			/* set the mark to the new starting point so ortho works as expected and we can draw a perpendicular line from here */
			pcb_marked.X = hl->tool_x;
			pcb_marked.Y = hl->tool_y;
		}
		pcb_draw();
	}
}

void pcb_tool_line_adjust_attached_objects(rnd_design_t *hl)
{
	/* don't draw outline when ctrl key is pressed */
	if (rnd_gui->control_is_pressed(rnd_gui)) {
		pcb_crosshair.AttachedLine.draw = rnd_false;
	}
	else {
		pcb_crosshair.AttachedLine.draw = rnd_true;
		pcb_line_adjust_attached();
	}
}

void pcb_tool_line_draw_attached(rnd_design_t *hl)
{
	pcb_board_t *pcb = (pcb_board_t *)hl;

	if (pcb->RatDraw) {
		/* draw only if starting point exists and the line has length */
		if (pcb_crosshair.AttachedLine.State != PCB_CH_STATE_FIRST && pcb_crosshair.AttachedLine.draw) 
			pcb_draw_wireframe_line(pcb_crosshair.GC,
				pcb_crosshair.AttachedLine.Point1.X, pcb_crosshair.AttachedLine.Point1.Y,
				pcb_crosshair.AttachedLine.Point2.X, pcb_crosshair.AttachedLine.Point2.Y,
				10, 0);
	}
	else if (pcb_crosshair.Route.size > 0) {
		pcb_route_draw(&pcb_crosshair.Route,pcb_crosshair.GC);
		if (conf_core.editor.show_drc)
			pcb_route_draw_drc(&pcb_crosshair.Route,pcb_crosshair.GC);
		rnd_render->set_color(pcb_crosshair.GC, &conf_core.appearance.color.attached);
	}
	else {
		/* Draw a circle (0 length line) to show where the line will be placed */
		if (PCB_CURRLAYER(pcb))
			rnd_render->set_color(pcb_crosshair.GC, &PCB_CURRLAYER(pcb)->meta.real.color);

		pcb_draw_wireframe_line(pcb_crosshair.GC,
			pcb_crosshair.X, pcb_crosshair.Y,
			pcb_crosshair.X, pcb_crosshair.Y, 
			conf_core.design.line_thickness,0 );

		if (conf_core.editor.show_drc) {
			rnd_render->set_color(pcb_crosshair.GC, &conf_core.appearance.color.drc);
			pcb_draw_wireframe_line(pcb_crosshair.GC,
				pcb_crosshair.X, pcb_crosshair.Y,
				pcb_crosshair.X, pcb_crosshair.Y, 
				conf_core.design.line_thickness + (2 * conf_core.design.clearance), 0);
			rnd_render->set_color(pcb_crosshair.GC, &conf_core.appearance.color.attached);
		}
	}
}

rnd_bool pcb_tool_line_undo_act(rnd_design_t *hl)
{
	pcb_board_t *pcb = (pcb_board_t *)hl;

	if (pcb_crosshair.AttachedLine.State == PCB_CH_STATE_SECOND) {
		if (conf_core.editor.auto_drc)
			pcb_undo(rnd_true);	  /* undo the connection find */
		pcb_crosshair.AttachedLine.State = PCB_CH_STATE_FIRST;
		pcb_route_reset(&pcb_crosshair.Route);
		if (!pcb_marked.user_placed)
			pcb_crosshair_set_local_ref(0, 0, rnd_false);
		return rnd_false;
	}
	if (pcb_crosshair.AttachedLine.State == PCB_CH_STATE_THIRD) {
		int type;
		void *ptr1, *ptr3, *ptrtmp;
		pcb_line_t *ptr2;
		ptrtmp = &pcb_crosshair.AttachedLine; /* a workaround for the line undo bug */
		/* this search is guaranteed to succeed */
		pcb_search_obj_by_location(PCB_OBJ_LINE | PCB_OBJ_RAT, &ptr1,
			&ptrtmp, &ptr3, pcb_crosshair.AttachedLine.Point1.X, pcb_crosshair.AttachedLine.Point1.Y, 0);
		ptr2 = (pcb_line_t *) ptrtmp;

		/* save both ends of line */
		pcb_crosshair.AttachedLine.Point2.X = ptr2->Point1.X;
		pcb_crosshair.AttachedLine.Point2.Y = ptr2->Point1.Y;
		if ((type = pcb_undo(rnd_true)) == 0)
			pcb_board_set_changed_flag(pcb, rnd_true);
		/* check that the undo was of the right type */
		if ((type & PCB_UNDO_CREATE) == 0) {
			/* wrong undo type, restore anchor points */
			pcb_crosshair.AttachedLine.Point2.X = pcb_crosshair.AttachedLine.Point1.X;
			pcb_crosshair.AttachedLine.Point2.Y = pcb_crosshair.AttachedLine.Point1.Y;
			return rnd_false;
		}
		/* move to new anchor */
		pcb_crosshair.AttachedLine.Point1.X = pcb_crosshair.AttachedLine.Point2.X;
		pcb_crosshair.AttachedLine.Point1.Y = pcb_crosshair.AttachedLine.Point2.Y;
		/* check if an intermediate point was removed */
		if (type & PCB_UNDO_REMOVE) {
			/* this search should find the restored line */
			pcb_search_obj_by_location(PCB_OBJ_LINE | PCB_OBJ_RAT, &ptr1, &ptrtmp, &ptr3, pcb_crosshair.AttachedLine.Point2.X, pcb_crosshair.AttachedLine.Point2.Y, 0);
			ptr2 = (pcb_line_t *) ptrtmp;
			if (conf_core.editor.auto_drc) {
				/* undo loses PCB_FLAG_FOUND */
				PCB_FLAG_SET(PCB_FLAG_FOUND, ptr2);
				pcb_line_invalidate_draw(PCB_CURRLAYER(pcb), ptr2);
			}
			pcb_crosshair.AttachedLine.Point1.X = pcb_crosshair.AttachedLine.Point2.X = ptr2->Point2.X;
			pcb_crosshair.AttachedLine.Point1.Y = pcb_crosshair.AttachedLine.Point2.Y = ptr2->Point2.Y;
		}
		pcb_crosshair_grid_fit(pcb, pcb_crosshair.X, pcb_crosshair.Y);
		rnd_tool_adjust_attached(hl);
		if (--pcb_added_lines == 0) {
			pcb_crosshair.AttachedLine.State = PCB_CH_STATE_SECOND;
			last_layer = PCB_CURRLAYER(pcb);
		}
		else {
			/* this search is guaranteed to succeed too */
			pcb_search_obj_by_location(PCB_OBJ_LINE | PCB_OBJ_RAT, &ptr1, &ptrtmp, &ptr3, pcb_crosshair.AttachedLine.Point1.X, pcb_crosshair.AttachedLine.Point1.Y, 0);
			ptr2 = (pcb_line_t *) ptrtmp;
			last_layer = (pcb_layer_t *) ptr1;
		}
		return rnd_false;
	}
	return rnd_true;
}

rnd_bool pcb_tool_line_redo_act(rnd_design_t *hl)
{
	pcb_board_t *pcb = (pcb_board_t *)hl;

	if (pcb_crosshair.AttachedLine.State == PCB_CH_STATE_SECOND)
		return rnd_false;
	if (pcb_redo(rnd_true)) {
		pcb_board_set_changed_flag(pcb, rnd_true);
		if (pcb_crosshair.AttachedLine.State != PCB_CH_STATE_FIRST) {
			pcb_line_t *line = linelist_last(&PCB_CURRLAYER(pcb)->Line);
			pcb_crosshair.AttachedLine.Point1.X = pcb_crosshair.AttachedLine.Point2.X = line->Point2.X;
			pcb_crosshair.AttachedLine.Point1.Y = pcb_crosshair.AttachedLine.Point2.Y = line->Point2.Y;
			pcb_added_lines++;
		}
	}
	return rnd_false;
}

void pcb_tool_line_escape(rnd_design_t *hl)
{
	if (pcb_crosshair.AttachedLine.State == PCB_CH_STATE_FIRST)
		rnd_tool_select_by_name(hl, "arrow");
	else
		rnd_tool_select_by_name(hl, "line");
}

/* XPM */
static const char *line_icon[] = {
/* columns rows colors chars-per-pixel */
"21 21 4 1",
"  c #000000",
". c #7A8584",
"X c #6EA5D7",
"O c None",
/* pixels */
"OOOOOOOOOOOOOOOOOOOOO",
"OO...OOOOOOOOOOOOOOOO",
"O.OOO.OOOOOOOOOOOOOOO",
"O.OXXXOOOOOOOOOOOOOOO",
"O.OOO.XXXOOOOOOOOOOOO",
"OO...OOOOXXXOOOO...OO",
"OOOOOOOOOOOOXXX.OOO.O",
"OOOOOOOOOOOOOOOXXXO.O",
"OOOOOOOOOOOOOOO.OOO.O",
"OOOOOOOOOOOOOOOO...OO",
"OOOOOOOOOOOOOOOOOOOOO",
"OOOOOOOOOOOOOOOOOOOOO",
" OOOO   O OOOO O    O",
" OOOOO OO  OOO O OOOO",
" OOOOO OO O OO O OOOO",
" OOOOO OO O OO O OOOO",
" OOOOO OO OO O O   OO",
" OOOOO OO OO O O OOOO",
" OOOOO OO OOO  O OOOO",
"    O   O OOOO O    O",
"OOOOOOOOOOOOOOOOOOOOO"
};


rnd_tool_t pcb_tool_line = {
	"line", NULL, NULL, 100, line_icon, RND_TOOL_CURSOR_NAMED("pencil"), 0,
	pcb_tool_line_init,
	pcb_tool_line_uninit,
	pcb_tool_line_notify_mode,
	NULL,
	pcb_tool_line_adjust_attached_objects,
	pcb_tool_line_draw_attached,
	pcb_tool_line_undo_act,
	pcb_tool_line_redo_act,
	pcb_tool_line_escape,

	PCB_TLF_RAT
};