Index: trunk/src_plugins/cam/cam.c
===================================================================
--- trunk/src_plugins/cam/cam.c	(revision 24089)
+++ trunk/src_plugins/cam/cam.c	(revision 24090)
@@ -4,7 +4,7 @@
  *  pcb-rnd, interactive printed circuit board design
  *
  *  cam export jobs plugin
- *  pcb-rnd Copyright (C) 2018 Tibor 'Igor2' Palinkas
+ *  pcb-rnd Copyright (C) 2018,2019 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
@@ -62,10 +62,10 @@
 	gds_t tmp;
 } cam_ctx_t;
 
+#include "cam_gui.c"
+
 static void cam_init_inst(cam_ctx_t *ctx)
 {
-
-
 	memset(ctx, 0, sizeof(cam_ctx_t));
 	ctx->old_base = pcb_cam_base;
 
@@ -280,16 +280,16 @@
 	return 1;
 }
 
-static const char pcb_acts_cam[] = "cam(exec, script, [options])\ncam(call, jobname, [options])";
+static const char pcb_acts_cam[] = "cam(exec, script, [options])\ncam(call, jobname, [options])\ncam([gui])";
 static const char pcb_acth_cam[] = "Export jobs for feeding cam processes";
 static fgw_error_t pcb_act_cam(fgw_arg_t *res, int argc, fgw_arg_t *argv)
 {
 	cam_ctx_t ctx;
-	const char *cmd, *arg, *opt;
+	const char *cmd = "gui", *arg = NULL, *opt;
 	int n, rs = -1;
 
-	PCB_ACT_CONVARG(1, FGW_STR, cam, cmd = argv[1].val.str);
-	PCB_ACT_CONVARG(2, FGW_STR, cam, arg = argv[2].val.str);
+	PCB_ACT_MAY_CONVARG(1, FGW_STR, cam, cmd = argv[1].val.str);
+	PCB_ACT_MAY_CONVARG(2, FGW_STR, cam, arg = argv[2].val.str);
 
 	cam_init_inst(&ctx);
 	for(n = 3; n < argc; n++) {
@@ -302,10 +302,21 @@
 		}
 	}
 
-	if (pcb_strcasecmp(cmd, "exec") == 0)
-		rs = cam_exec(arg, cam_exec_inst, &ctx);
-	else if (pcb_strcasecmp(cmd, "call") == 0)
-		rs = cam_call(arg, &ctx);
+	if (pcb_strcasecmp(cmd, "gui") == 0) {
+		rs = cam_gui(arg);
+	}
+	else {
+		if (arg == NULL) {
+			pcb_message(PCB_MSG_ERROR, "cam: need one more argument for '%s'\n", cmd);
+			cam_uninit_inst(&ctx);
+			PCB_ACT_IRES(1);
+			return 0;
+		}
+		if (pcb_strcasecmp(cmd, "exec") == 0)
+			rs = cam_exec(arg, cam_exec_inst, &ctx);
+		else if (pcb_strcasecmp(cmd, "call") == 0)
+			rs = cam_call(arg, &ctx);
+	}
 
 	cam_uninit_inst(&ctx);
 	PCB_ACT_IRES(rs);
Index: trunk/src_plugins/cam/cam_gui.c
===================================================================
--- trunk/src_plugins/cam/cam_gui.c	(nonexistent)
+++ trunk/src_plugins/cam/cam_gui.c	(revision 24090)
@@ -0,0 +1,72 @@
+/*
+ *                            COPYRIGHT
+ *
+ *  pcb-rnd, interactive printed circuit board design
+ *
+ *  cam export jobs plugin: GUI dialog
+ *  pcb-rnd Copyright (C) 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 Street, 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")
+ */
+
+#include "hid_dad.h"
+
+typedef struct {
+	PCB_DAD_DECL_NOINIT(dlg)
+} cam_dlg_t;
+
+cam_dlg_t foo_ctx;
+
+static void cam_close_cb(void *caller_data, pcb_hid_attr_ev_t ev)
+{
+	cam_dlg_t *ctx = caller_data;
+	PCB_DAD_FREE(ctx->dlg);
+	memset(ctx, 0, sizeof(cam_dlg_t)); /* reset all states to the initial - includes ctx->active = 0; */
+}
+
+static int cam_gui(const char *arg)
+{
+	cam_dlg_t *ctx = calloc(sizeof(cam_dlg_t), 1);
+	pcb_hid_dad_buttons_t clbtn[] = {{"Close", 0}, {NULL, 0}};
+
+	PCB_DAD_BEGIN_VBOX(ctx->dlg);
+		PCB_DAD_COMPFLAG(ctx->dlg, PCB_HATF_EXPFILL);
+		PCB_DAD_BEGIN_HPANE(ctx->dlg);
+
+			PCB_DAD_BEGIN_VBOX(ctx->dlg); /* left */
+			PCB_DAD_END(ctx->dlg);
+
+			PCB_DAD_BEGIN_VBOX(ctx->dlg); /* right */
+				PCB_DAD_BEGIN_VPANE(ctx->dlg);
+					PCB_DAD_BEGIN_VBOX(ctx->dlg); /* top */
+					PCB_DAD_END(ctx->dlg);
+					PCB_DAD_BEGIN_VBOX(ctx->dlg); /* bottom */
+					PCB_DAD_END(ctx->dlg);
+				PCB_DAD_END(ctx->dlg);
+			PCB_DAD_END(ctx->dlg);
+
+		PCB_DAD_END(ctx->dlg);
+		PCB_DAD_BUTTON_CLOSES(ctx->dlg, clbtn);
+	PCB_DAD_END(ctx->dlg);
+
+	PCB_DAD_NEW("cam", ctx->dlg, "CAM export", ctx, pcb_false, cam_close_cb);
+
+	return 0;
+}