#include <config.h>

#include <cstdlib>
#include FORMS_H_LOCATION

#include "layout_forms.h"
#include "LString.h"
#include "minibuffer.h"
#include "vspace.h"
#include "buffer.h"
#include "BufferView.h"
#include "lyxparagraph.h"
#include "gettext.h"
#include "lyxtext.h"

extern FD_form_paragraph_extra * fd_form_paragraph_extra;
extern MiniBuffer * minibuffer;
extern BufferView * current_view;
extern void BeforeChange();
static bool CheckInputWidth();

inline void DeactivateParagraphExtraButtons ()
{
	fl_deactivate_object(fd_form_paragraph_extra->button_ok);
	fl_deactivate_object(fd_form_paragraph_extra->button_apply);
	fl_set_object_lcol(fd_form_paragraph_extra->button_ok, FL_INACTIVE);
	fl_set_object_lcol(fd_form_paragraph_extra->button_apply, FL_INACTIVE);
}

inline void ActivateParagraphExtraButtons ()
{
	fl_activate_object(fd_form_paragraph_extra->button_ok);
	fl_activate_object(fd_form_paragraph_extra->button_apply);
	fl_set_object_lcol(fd_form_paragraph_extra->button_ok, FL_BLACK);
	fl_set_object_lcol(fd_form_paragraph_extra->button_apply, FL_BLACK);
}

inline void DisableParagraphExtra ()
{
        DeactivateParagraphExtraButtons();
	fl_deactivate_object(fd_form_paragraph_extra->input_pextra_width);
	fl_deactivate_object(fd_form_paragraph_extra->input_pextra_widthp);
	fl_deactivate_object(fd_form_paragraph_extra->group_alignment);
	fl_deactivate_object(fd_form_paragraph_extra->radio_pextra_top);
	fl_deactivate_object(fd_form_paragraph_extra->radio_pextra_middle);
	fl_deactivate_object(fd_form_paragraph_extra->radio_pextra_bottom);
	fl_deactivate_object(fd_form_paragraph_extra->text_warning);
	fl_deactivate_object(fd_form_paragraph_extra->group_extraopt);
	fl_deactivate_object(fd_form_paragraph_extra->radio_pextra_indent);
	fl_deactivate_object(fd_form_paragraph_extra->radio_pextra_minipage);
	fl_deactivate_object(fd_form_paragraph_extra->radio_pextra_floatflt);
	fl_deactivate_object(fd_form_paragraph_extra->radio_pextra_hfill);
	fl_deactivate_object(fd_form_paragraph_extra->radio_pextra_startmp);
}	

inline void EnableParagraphExtra ()
{
        ActivateParagraphExtraButtons();
	fl_activate_object(fd_form_paragraph_extra->input_pextra_width);
	fl_activate_object(fd_form_paragraph_extra->input_pextra_widthp);
	fl_activate_object(fd_form_paragraph_extra->group_alignment);
	fl_activate_object(fd_form_paragraph_extra->radio_pextra_top);
	fl_activate_object(fd_form_paragraph_extra->radio_pextra_middle);
	fl_activate_object(fd_form_paragraph_extra->radio_pextra_bottom);
	fl_activate_object(fd_form_paragraph_extra->text_warning);
	fl_activate_object(fd_form_paragraph_extra->group_extraopt);
	fl_activate_object(fd_form_paragraph_extra->radio_pextra_indent);
	fl_activate_object(fd_form_paragraph_extra->radio_pextra_minipage);
	fl_activate_object(fd_form_paragraph_extra->radio_pextra_floatflt);
	fl_activate_object(fd_form_paragraph_extra->radio_pextra_hfill);
	fl_activate_object(fd_form_paragraph_extra->radio_pextra_startmp);
}	

bool UpdateParagraphExtra()
{
    bool update = false;
    if (current_view->getScreen() && current_view->available()) {
        update = true;
        LyXParagraph * par = current_view->buffer()->text->cursor.par;

	EnableParagraphExtra();

        fl_activate_object(fd_form_paragraph_extra->input_pextra_width);
        fl_activate_object(fd_form_paragraph_extra->input_pextra_widthp);
        fl_set_input(fd_form_paragraph_extra->input_pextra_width,
                     par->pextra_width.c_str());
        fl_set_input(fd_form_paragraph_extra->input_pextra_widthp,
                     par->pextra_widthp.c_str());
        switch(par->pextra_alignment) {
          case LyXParagraph::MINIPAGE_ALIGN_TOP:
            fl_set_button(fd_form_paragraph_extra->radio_pextra_top, 1);
            break;
          case LyXParagraph::MINIPAGE_ALIGN_MIDDLE:
            fl_set_button(fd_form_paragraph_extra->radio_pextra_middle, 1);
            break;
          case LyXParagraph::MINIPAGE_ALIGN_BOTTOM:
            fl_set_button(fd_form_paragraph_extra->radio_pextra_bottom, 1);
            break;
        }
        fl_set_button(fd_form_paragraph_extra->radio_pextra_hfill,
                      par->pextra_hfill);
        fl_set_button(fd_form_paragraph_extra->radio_pextra_startmp,
                      par->pextra_start_minipage);
        CheckInputWidth();
        if (par->pextra_type == LyXParagraph::PEXTRA_INDENT) {
            fl_set_button(fd_form_paragraph_extra->radio_pextra_indent, 1);
            fl_set_button(fd_form_paragraph_extra->radio_pextra_minipage, 0);
            fl_set_button(fd_form_paragraph_extra->radio_pextra_floatflt, 0);
            fl_deactivate_object(fd_form_paragraph_extra->radio_pextra_top);
            fl_deactivate_object(fd_form_paragraph_extra->radio_pextra_middle);
            fl_deactivate_object(fd_form_paragraph_extra->radio_pextra_bottom);
        } else if (par->pextra_type == LyXParagraph::PEXTRA_MINIPAGE) {
            fl_set_button(fd_form_paragraph_extra->radio_pextra_indent, 0);
            fl_set_button(fd_form_paragraph_extra->radio_pextra_minipage, 1);
            fl_set_button(fd_form_paragraph_extra->radio_pextra_floatflt, 0);
            fl_activate_object(fd_form_paragraph_extra->radio_pextra_top);
            fl_activate_object(fd_form_paragraph_extra->radio_pextra_middle);
            fl_activate_object(fd_form_paragraph_extra->radio_pextra_bottom);
        } else if (par->pextra_type == LyXParagraph::PEXTRA_FLOATFLT) {
            fl_set_button(fd_form_paragraph_extra->radio_pextra_indent, 0);
            fl_set_button(fd_form_paragraph_extra->radio_pextra_minipage, 0);
            fl_set_button(fd_form_paragraph_extra->radio_pextra_floatflt, 1);
            fl_deactivate_object(fd_form_paragraph_extra->radio_pextra_top);
            fl_deactivate_object(fd_form_paragraph_extra->radio_pextra_middle);
            fl_deactivate_object(fd_form_paragraph_extra->radio_pextra_bottom);
        } else {
            fl_set_button(fd_form_paragraph_extra->radio_pextra_indent, 0);
            fl_set_button(fd_form_paragraph_extra->radio_pextra_minipage, 0);
            fl_deactivate_object(fd_form_paragraph_extra->input_pextra_width);
            fl_deactivate_object(fd_form_paragraph_extra->input_pextra_widthp);
            fl_deactivate_object(fd_form_paragraph_extra->radio_pextra_top);
            fl_deactivate_object(fd_form_paragraph_extra->radio_pextra_middle);
            fl_deactivate_object(fd_form_paragraph_extra->radio_pextra_bottom);
        }
        if (par->pextra_type == LyXParagraph::PEXTRA_NONE)
            ActivateParagraphExtraButtons();
    }
    fl_hide_object(fd_form_paragraph_extra->text_warning);

    if (current_view->buffer()->isReadonly()) {
      DisableParagraphExtra();
      fl_set_object_label(fd_form_paragraph_extra->text_warning,
			  _("Document is read-only. "
			    "No changes to layout permitted."));
      fl_show_object(fd_form_paragraph_extra->text_warning);
    }
    if (!update && fd_form_paragraph_extra->form_paragraph_extra->visible) {
      fl_hide_form(fd_form_paragraph_extra->form_paragraph_extra);
    }
    return update;
}


void ParagraphExtraOpen(FL_OBJECT *, long)
{
    if (UpdateParagraphExtra()) {
        if (fd_form_paragraph_extra->form_paragraph_extra->visible) {
            fl_raise_form(fd_form_paragraph_extra->form_paragraph_extra);
        } else {
            fl_show_form(fd_form_paragraph_extra->form_paragraph_extra,
                         FL_PLACE_MOUSE, FL_FULLBORDER,
                         _("ParagraphExtra Layout"));
        }
    }
}


void ParagraphExtraApplyCB(FL_OBJECT *, long)
{
    if (current_view->getScreen() && current_view->available()) {
        FD_form_paragraph_extra const * fd = fd_form_paragraph_extra;
        char const * width = fl_get_input(fd->input_pextra_width);
        char const * widthp = fl_get_input(fd->input_pextra_widthp);
        LyXText * text = current_view->buffer()->text;
        int type = LyXParagraph::PEXTRA_NONE;
	LyXParagraph::MINIPAGE_ALIGNMENT alignment =
		LyXParagraph::MINIPAGE_ALIGN_TOP;
        bool
            hfill = false,
            start_minipage = false;

        if (fl_get_button(fd_form_paragraph_extra->radio_pextra_indent)) {
            type = LyXParagraph::PEXTRA_INDENT;
        } else if (fl_get_button(fd_form_paragraph_extra->radio_pextra_minipage)) {
            type = LyXParagraph::PEXTRA_MINIPAGE;
            hfill = fl_get_button(fd_form_paragraph_extra->radio_pextra_hfill);
            start_minipage = 
                fl_get_button(fd_form_paragraph_extra->radio_pextra_startmp);
            if (fl_get_button(fd_form_paragraph_extra->radio_pextra_top))
                alignment = LyXParagraph::MINIPAGE_ALIGN_TOP;
            else if (fl_get_button(fd_form_paragraph_extra->radio_pextra_middle))
                alignment = LyXParagraph::MINIPAGE_ALIGN_MIDDLE;
            else if (fl_get_button(fd_form_paragraph_extra->radio_pextra_bottom))
                alignment = LyXParagraph::MINIPAGE_ALIGN_BOTTOM;
        } else if (fl_get_button(fd_form_paragraph_extra->radio_pextra_floatflt)) {
            type = LyXParagraph::PEXTRA_FLOATFLT;
        }
        text->SetParagraphExtraOpt(type, width, widthp, alignment, hfill,
                                   start_minipage);
	current_view->buffer()->update(1);
	minibuffer->Set(_("ParagraphExtra layout set"));
    }
    return;
}


void ParagraphExtraCancelCB(FL_OBJECT *, long)
{
    fl_hide_form(fd_form_paragraph_extra->form_paragraph_extra);
}


void ParagraphExtraOKCB(FL_OBJECT * ob, long data)
{
    ParagraphExtraCancelCB(ob, data);
    ParagraphExtraApplyCB(ob, data);
}


void CheckPExtraOptCB(FL_OBJECT * ob, long)
{
    ActivateParagraphExtraButtons();
    CheckInputWidth();
    if (ob == fd_form_paragraph_extra->radio_pextra_indent) {
        int n = fl_get_button(fd_form_paragraph_extra->radio_pextra_indent);
        if (n) {
            fl_set_button(fd_form_paragraph_extra->radio_pextra_minipage, 0);
            fl_set_button(fd_form_paragraph_extra->radio_pextra_floatflt, 0);
            fl_activate_object(fd_form_paragraph_extra->input_pextra_width);
            fl_activate_object(fd_form_paragraph_extra->input_pextra_widthp);
            fl_deactivate_object(fd_form_paragraph_extra->radio_pextra_top);
            fl_deactivate_object(fd_form_paragraph_extra->radio_pextra_middle);
            fl_deactivate_object(fd_form_paragraph_extra->radio_pextra_bottom);
        } else {
            fl_deactivate_object(fd_form_paragraph_extra->input_pextra_width);
            fl_deactivate_object(fd_form_paragraph_extra->input_pextra_widthp);
            ActivateParagraphExtraButtons();
        }
    } else if (ob == fd_form_paragraph_extra->radio_pextra_minipage) {
        int n = fl_get_button(fd_form_paragraph_extra->radio_pextra_minipage);
        if (n) {
            fl_set_button(fd_form_paragraph_extra->radio_pextra_indent, 0);
            fl_set_button(fd_form_paragraph_extra->radio_pextra_floatflt, 0);
            fl_activate_object(fd_form_paragraph_extra->input_pextra_width);
            fl_activate_object(fd_form_paragraph_extra->input_pextra_widthp);
            fl_activate_object(fd_form_paragraph_extra->radio_pextra_top);
            fl_activate_object(fd_form_paragraph_extra->radio_pextra_middle);
            fl_activate_object(fd_form_paragraph_extra->radio_pextra_bottom);
        } else {
            fl_deactivate_object(fd_form_paragraph_extra->input_pextra_width);
            fl_deactivate_object(fd_form_paragraph_extra->input_pextra_widthp);
            fl_deactivate_object(fd_form_paragraph_extra->radio_pextra_top);
            fl_deactivate_object(fd_form_paragraph_extra->radio_pextra_middle);
            fl_deactivate_object(fd_form_paragraph_extra->radio_pextra_bottom);
            ActivateParagraphExtraButtons();
        }
    } else if (ob == fd_form_paragraph_extra->radio_pextra_floatflt) {
        int n = fl_get_button(fd_form_paragraph_extra->radio_pextra_floatflt);
        if (n) {
            fl_set_button(fd_form_paragraph_extra->radio_pextra_indent, 0);
            fl_set_button(fd_form_paragraph_extra->radio_pextra_minipage, 0);
            fl_activate_object(fd_form_paragraph_extra->input_pextra_width);
            fl_activate_object(fd_form_paragraph_extra->input_pextra_widthp);
            fl_activate_object(fd_form_paragraph_extra->radio_pextra_top);
            fl_activate_object(fd_form_paragraph_extra->radio_pextra_middle);
            fl_activate_object(fd_form_paragraph_extra->radio_pextra_bottom);
        } else {
            fl_deactivate_object(fd_form_paragraph_extra->input_pextra_width);
            fl_deactivate_object(fd_form_paragraph_extra->input_pextra_widthp);
            fl_deactivate_object(fd_form_paragraph_extra->radio_pextra_top);
            fl_deactivate_object(fd_form_paragraph_extra->radio_pextra_middle);
            fl_deactivate_object(fd_form_paragraph_extra->radio_pextra_bottom);
            ActivateParagraphExtraButtons();
        }
    }
    return;
}


static bool CheckInputWidth()
{
    string s1 = fl_get_input(fd_form_paragraph_extra->input_pextra_width);
    string s2 = fl_get_input(fd_form_paragraph_extra->input_pextra_widthp);
    if (s1.empty() && s2.empty()) {
        fl_activate_object(fd_form_paragraph_extra->input_pextra_width);
        fl_activate_object(fd_form_paragraph_extra->input_pextra_widthp);
        fl_hide_object(fd_form_paragraph_extra->text_warning);
        DeactivateParagraphExtraButtons();
        return false;
    }
    if (!s1.empty()) { // LyXLength parameter
        fl_activate_object(fd_form_paragraph_extra->input_pextra_width);
        fl_deactivate_object(fd_form_paragraph_extra->input_pextra_widthp);
        if (!isValidLength(s1)) {
            DeactivateParagraphExtraButtons();
            fl_set_object_label(fd_form_paragraph_extra->text_warning,
                                _("Warning: Invalid Length (valid example: 10mm)"));
            fl_show_object(fd_form_paragraph_extra->text_warning);
            return false;
        }
    } else { // !s2.empty() % parameter
        fl_deactivate_object(fd_form_paragraph_extra->input_pextra_width);
        fl_activate_object(fd_form_paragraph_extra->input_pextra_widthp);
        if ((atoi(s2.c_str()) < 0 ) || (atoi(s2.c_str()) > 100)) {
            DeactivateParagraphExtraButtons();
            fl_set_object_label(fd_form_paragraph_extra->text_warning,
                                _("Warning: Invalid percent value (0-100)"));
            fl_show_object(fd_form_paragraph_extra->text_warning);
            return false;
        }
    }
    fl_hide_object(fd_form_paragraph_extra->text_warning);
    return true;
}