//
// FLUID template support for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2020 by Bill Spitzak and others.
//
// This library is free software. Distribution and use rights are outlined in
// the file "COPYING" which should have been included with this file.  If this
// file is missing or damaged, see the license at:
//
//     https://www.fltk.org/COPYING.php
//
// Please see the following page on how to report bugs and issues:
//
//     https://www.fltk.org/bugs.php
//

// generated by Fast Light User Interface Designer (fluid) version 1.0400

#include "template_panel.h"
#include "fluid.h"
#include <FL/Fl_Shared_Image.H>
#include <FL/fl_ask.H>
#include <FL/fl_string_functions.h>
#include "fluid_filename.h"
#include "../src/flstring.h"
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#if defined(_WIN32) && !defined(__CYGWIN__)
#include <io.h>
#else
#include <unistd.h>
#endif // _WIN32 && !__CYGWIN__

Fl_Double_Window *template_panel=(Fl_Double_Window *)0;

static void cb_template_panel(Fl_Double_Window*, void*) {
  Fl_Shared_Image *img = (Fl_Shared_Image *)template_preview->image();
  if (img) img->release();
  template_preview->image(0);

  template_browser->deselect();
  template_name->value("");
  template_instance->value("");
  template_panel->hide();
}

Fl_Browser *template_browser=(Fl_Browser *)0;

static void cb_template_browser(Fl_Browser*, void*) {
  if (Fl::event_clicks()) {
    template_panel->hide();
    return;
  }
  Fl_Shared_Image *img = (Fl_Shared_Image *)template_preview->image();
  if (img) img->release();
  template_preview->image(0);
  template_preview->redraw();

  int item = template_browser->value();

  if (item <= 1) template_instance->deactivate();
  else template_instance->activate();

  if (item < 1) {
    template_submit->deactivate();
    template_delete->deactivate();
    return;
  }

  template_submit->activate();

  const char *flfile = (const char *)template_browser->data(item);
  if (!flfile) {
    template_delete->deactivate();
    return;
  }

  template_name->value(template_browser->text(item));

  template_delete->activate();

  char pngfile[1024], *ext;

  strlcpy(pngfile, flfile, sizeof(pngfile));
  if ((ext = strrchr(pngfile, '.')) == NULL) return;
  strcpy(ext, ".png");

  img = Fl_Shared_Image::get(pngfile);

  if (img) {
    template_preview->image(img);
    template_preview->redraw();
  }
}

Fl_Box *template_preview=(Fl_Box *)0;

Fl_Input *template_name=(Fl_Input *)0;

static void cb_template_name(Fl_Input*, void*) {
  if (strlen(template_name->value())) {
    template_submit->activate();
    if (Fl::event_key() == FL_Enter) template_panel->hide();
  } else template_submit->deactivate();
}

Fl_Input *template_instance=(Fl_Input *)0;

Fl_Button *template_delete=(Fl_Button *)0;

static void cb_Cancel(Fl_Button*, void*) {
  Fl_Shared_Image *img = (Fl_Shared_Image *)template_preview->image();
  if (img) img->release();
  template_preview->image(0);

  template_browser->deselect();
  template_name->value("");
  template_instance->value("");
  template_panel->hide();
}

Fl_Return_Button *template_submit=(Fl_Return_Button *)0;

static void cb_template_submit(Fl_Return_Button*, void*) {
  Fl_Shared_Image *img = (Fl_Shared_Image *)template_preview->image();
  if (img) img->release();
  template_preview->image(0);

  template_panel->hide();
}

Fl_Double_Window* make_template_panel() {
  { template_panel = new Fl_Double_Window(460, 355, "New/Save Template");
    template_panel->callback((Fl_Callback*)cb_template_panel);
    { template_browser = new Fl_Browser(10, 28, 180, 250, "Available Templates:");
      template_browser->type(2);
      template_browser->labelfont(1);
      template_browser->callback((Fl_Callback*)cb_template_browser);
      template_browser->align(Fl_Align(FL_ALIGN_TOP_LEFT));
      template_browser->when(FL_WHEN_CHANGED | FL_WHEN_NOT_CHANGED);
    } // Fl_Browser* template_browser
    { template_preview = new Fl_Box(200, 28, 250, 250, "no preview...");
      template_preview->box(FL_THIN_DOWN_BOX);
      template_preview->align(Fl_Align(FL_ALIGN_CLIP|FL_ALIGN_INSIDE));
      Fl_Group::current()->resizable(template_preview);
    } // Fl_Box* template_preview
    { template_name = new Fl_Input(198, 288, 252, 25, "Template Name:");
      template_name->labelfont(1);
      template_name->textfont(4);
      template_name->callback((Fl_Callback*)cb_template_name);
      template_name->when(FL_WHEN_CHANGED | FL_WHEN_NOT_CHANGED);
    } // Fl_Input* template_name
    { template_instance = new Fl_Input(198, 288, 252, 25, "Instance Name:");
      template_instance->labelfont(1);
      template_instance->textfont(4);
      template_instance->hide();
    } // Fl_Input* template_instance
    { Fl_Group* o = new Fl_Group(10, 323, 440, 25);
      { template_delete = new Fl_Button(10, 323, 143, 25, "Delete Template");
        template_delete->callback((Fl_Callback*)template_delete_cb);
      } // Fl_Button* template_delete
      { Fl_Box* o = new Fl_Box(153, 323, 126, 25);
        Fl_Group::current()->resizable(o);
      } // Fl_Box* o
      { Fl_Button* o = new Fl_Button(289, 323, 72, 25, "Cancel");
        o->callback((Fl_Callback*)cb_Cancel);
      } // Fl_Button* o
      { template_submit = new Fl_Return_Button(371, 323, 79, 25, "Save");
        template_submit->callback((Fl_Callback*)cb_template_submit);
      } // Fl_Return_Button* template_submit
      o->end();
    } // Fl_Group* o
    template_panel->set_modal();
    template_panel->end();
  } // Fl_Double_Window* template_panel
  return template_panel;
}

void template_clear() {
  int i;
  void *filename;

  for (i = 1; i <= template_browser->size(); i ++) {
    if ((filename = template_browser->data(i)) != NULL) free(filename);
  }

  template_browser->deselect();
  template_browser->clear();
}

void template_delete_cb(Fl_Button *, void *) {
  int item = template_browser->value();
  if (item < 1) return;

  const char *name = template_browser->text(item);
  const char *flfile = (const char *)template_browser->data(item);
  if (!flfile) return;

  if (!fl_choice("Are you sure you want to delete the template \"%s\"?",
                 "Cancel", "Delete", 0, name)) return;

  if (fl_unlink(flfile)) {
    fl_alert("Unable to delete template \"%s\":\n%s", name, strerror(errno));
    return;
  }

  template_browser->remove(item);
  template_browser->do_callback();
}

void template_load() {
  int i;
  char name[1024], filename[1400], path[1024], *ptr;
  struct dirent **files;
  int num_files;

  fluid_prefs.getUserdataPath(path, sizeof(path));
  strlcat(path, "templates", sizeof(path));

  int sample_templates_generated = 0;
  fluid_prefs.get("sample_templates_generated", sample_templates_generated, 0);

  if (sample_templates_generated < 2) {
    strcpy(filename, path);
    strcat(filename, "/FLTK_License.fl");
    FILE *f = fopen(filename, "wb");
    if (f) {
      fputs(
  "# data file for the Fltk User Interface Designer (fluid)\nversion 1.0400\nheader_name {.h}\n"
  "code_name {.cxx}\ncomment {//\n// @INSTANCE@ for the Fast Light Tool Kit (FLT"
  "K).\n//\n// Copyright 1998-2023 by Bill Spitzak and others.\n//\n// This library is free sof"
  "tware. Distribution and use rights are outlined in\n// the file \"COPYING\" which should have "
  "been included with this file.  If this\n// file is missing or damaged, see the license at:\n"
  "//\n//     https://www.fltk.org/COPYING.php\n//\n// Please see the following page on how to report "
  "bugs and issues:\n//\n//     https://www.fltk.org/bugs.php\n//\n} {selected in_source in_head"
  "er\n}\n", f);
      fclose(f);
    }
    strcpy(filename, path);
    strcat(filename, "/1of7GUIs.fl");
    f = fopen(filename, "wb");
    if (f) {
      fputs(
  "# data file for the Fltk User Interface Designer (fluid)\n version 1.0400\n header_name {.h}\n"
  "code_name {.cxx}\n comment {\n1 of 7GUIs\n\n7GUIs was been created as a spin-off of the master’s\n"
  "thesis Comparison of Object-Oriented and Functional\nProgramming for GUI Development by Eugen Kiss at the\n"
  "Human-Computer Interaction group of the Leibniz\nUniversität Hannover in 2014.\n\n"
  "https://7guis.github.io/7guis/\n} {selected in_source not_in_header\n}\n\nFunction {} {open\n"
  "} {\nFl_Window {} {\nlabel Counter open\nxywh {486 292 194 55} type Double resizable visible\n"
  "} {\nFl_Output counter_widget {\nxywh {15 15 80 22}\ncode0 {counter_widget->value(0);}\n"
  "}\nFl_Button {} {\nlabel Count\ncallback {int i = counter_widget->ivalue();\ni++;\n"
  "counter_widget->value(i);}\nxywh {99 15 80 22}\n}\n}\n}\n", f);
      fclose(f);
    }  
    sample_templates_generated = 2;
    fluid_prefs.set("sample_templates_generated", sample_templates_generated);
    fluid_prefs.flush();
  }

  num_files = fl_filename_list(path, &files);

  for (i = 0; i < num_files; i ++) {
    if (fl_filename_match(files[i]->d_name, "*.fl")) {
      // Format the name as the filename with "_" replaced with " "
      // and without the trailing ".fl"...
      strlcpy(name, files[i]->d_name, sizeof(name));
      *strstr(name, ".fl") = '\0';

      for (ptr = name; *ptr; ptr ++) {
        if (*ptr == '_') *ptr = ' ';
      }

      // Add the template to the browser...
      snprintf(filename, sizeof(filename), "%s/%s", path, files[i]->d_name);
      template_browser->add(name, fl_strdup(filename));
    }

    free(files[i]);
  }

  if (num_files > 0) free(files);
}