lyx_mirror/src/frontends/xforms/FormParagraph.C
Lars Gullik Bjønnes 043298544c Rename strip to rtrim
Rename frontStrip to ltrim
Add new trim function.

modify source for this change.


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@4801 a592a061-630c-0410-9148-cb99ea01b6c8
2002-07-28 22:50:13 +00:00

526 lines
15 KiB
C

/**
* \file FormParagraph.C
* Copyright 2000-2001 The LyX Team.
* See the file COPYING.
*
* \author Jürgen Vigna, jug@sad.it
*/
#include <config.h>
#ifdef __GNUG__
#pragma implementation
#endif
#include FORMS_H_LOCATION
#include "FormParagraph.h"
#include "forms/form_paragraph.h"
#include "ControlParagraph.h"
#include "ParagraphParameters.h"
#include "xforms_helpers.h"
#include "lyxrc.h" // to set the deafult length values
#include "input_validators.h"
#include "helper_funcs.h"
#include "gettext.h"
#include "xformsBC.h"
#include "layout.h" // LyXAlignment
#include "support/lstrings.h"
#include "support/LAssert.h"
#include FORMS_H_LOCATION
#include <functional>
using std::vector;
using std::bind2nd;
using std::remove_if;
typedef FormCB<ControlParagraph, FormDB<FD_paragraph> > base_class;
FormParagraph::FormParagraph(ControlParagraph & c, Dialogs & d)
: base_class(c, d, _("Paragraph Layout"), false)
{}
void FormParagraph::build()
{
// the tabbed folder
dialog_.reset(build_paragraph(this));
// Allow the base class to control messages
setMessageWidget(dialog_->text_warning);
fl_addto_choice(dialog_->choice_space_above,
_(" None | Defskip | Smallskip "
"| Medskip | Bigskip | VFill | Length "));
fl_addto_choice(dialog_->choice_space_below,
_(" None | Defskip | Smallskip "
"| Medskip | Bigskip | VFill | Length "));
fl_addto_choice(dialog_->choice_linespacing,
_(" Default | Single | OneHalf | Double | Custom "));
fl_set_input_return(dialog_->input_space_above, FL_RETURN_CHANGED);
fl_set_input_return(dialog_->input_space_below, FL_RETURN_CHANGED);
fl_set_input_return(dialog_->input_labelwidth, FL_RETURN_CHANGED);
fl_set_input_return(dialog_->input_linespacing, FL_RETURN_CHANGED);
fl_set_input_filter(dialog_->input_linespacing, fl_unsigned_float_filter);
setPrehandler(dialog_->input_space_above);
setPrehandler(dialog_->input_space_below);
setPrehandler(dialog_->input_labelwidth);
setPrehandler(dialog_->input_linespacing);
// Create the contents of the unit choices
// Don't include the "%" terms...
vector<string> units_vec = getLatexUnits();
vector<string>::iterator del =
remove_if(units_vec.begin(), units_vec.end(),
bind2nd(contains_functor(), "%"));
units_vec.erase(del, units_vec.end());
string units = getStringFromVector(units_vec, "|");
fl_addto_choice(dialog_->choice_value_space_above, units.c_str());
fl_addto_choice(dialog_->choice_value_space_below, units.c_str());
// Manage the ok, apply, restore and cancel/close buttons
bc().setOK(dialog_->button_ok);
bc().setApply(dialog_->button_apply);
bc().setCancel(dialog_->button_close);
bc().setRestore(dialog_->button_restore);
bc().addReadOnly(dialog_->radio_align_right);
bc().addReadOnly(dialog_->radio_align_left);
bc().addReadOnly(dialog_->radio_align_block);
bc().addReadOnly(dialog_->radio_align_center);
bc().addReadOnly(dialog_->check_lines_top);
bc().addReadOnly(dialog_->check_lines_bottom);
bc().addReadOnly(dialog_->check_pagebreaks_top);
bc().addReadOnly(dialog_->check_pagebreaks_bottom);
bc().addReadOnly(dialog_->choice_space_above);
bc().addReadOnly(dialog_->input_space_above);
bc().addReadOnly(dialog_->check_space_above);
bc().addReadOnly(dialog_->choice_space_below);
bc().addReadOnly(dialog_->input_space_below);
bc().addReadOnly(dialog_->check_space_below);
bc().addReadOnly(dialog_->choice_linespacing);
bc().addReadOnly(dialog_->input_linespacing);
bc().addReadOnly(dialog_->check_noindent);
bc().addReadOnly(dialog_->input_labelwidth);
}
namespace {
VSpace setVSpaceFromWidgets(FL_OBJECT * choice_type,
FL_OBJECT * input_length,
FL_OBJECT * choice_length,
FL_OBJECT * check_keep)
{
// Paranoia check!
lyx::Assert(choice_type && choice_type->objclass == FL_CHOICE &&
input_length && input_length->objclass == FL_INPUT &&
choice_length && choice_length->objclass == FL_CHOICE &&
check_keep && check_keep->objclass == FL_CHECKBUTTON);
VSpace space;
switch (fl_get_choice(choice_type)) {
case 1:
space = VSpace(VSpace::NONE);
break;
case 2:
space = VSpace(VSpace::DEFSKIP);
break;
case 3:
space = VSpace(VSpace::SMALLSKIP);
break;
case 4:
space = VSpace(VSpace::MEDSKIP);
break;
case 5:
space = VSpace(VSpace::BIGSKIP);
break;
case 6:
space = VSpace(VSpace::VFILL);
break;
case 7:
{
string const length =
getLengthFromWidgets(input_length, choice_length);
space = VSpace(LyXGlueLength(length));
break;
}
}
if (fl_get_button(check_keep))
space.setKeep(true);
return space;
}
void validateVSpaceWidgets(FL_OBJECT * choice_type, FL_OBJECT * input_length)
{
// Paranoia check!
lyx::Assert(choice_type && choice_type->objclass == FL_CHOICE &&
input_length && input_length->objclass == FL_INPUT);
if (fl_get_choice(choice_type) != 7)
return;
// If a vspace kind is "Length" but there's no text in
// the input field, reset the kind to "None".
string const input = rtrim(getString(input_length));
if (input.empty())
fl_set_choice(choice_type, 1);
}
} // namespace anon
void FormParagraph::apply()
{
if (!form()) return;
/* spacing */
// If a vspace kind is "Length" but there's no text in
// the input field, reset the kind to "None".
validateVSpaceWidgets(dialog_->choice_space_above,
dialog_->input_space_above);
VSpace const space_top =
setVSpaceFromWidgets(dialog_->choice_space_above,
dialog_->input_space_above,
dialog_->choice_value_space_above,
dialog_->check_space_above);
controller().params().spaceTop(space_top);
validateVSpaceWidgets(dialog_->choice_space_below,
dialog_->input_space_below);
VSpace const space_bottom =
setVSpaceFromWidgets(dialog_->choice_space_below,
dialog_->input_space_below,
dialog_->choice_value_space_below,
dialog_->check_space_below);
controller().params().spaceBottom(space_bottom);
/* lines and pagebreaks */
bool const line_top = fl_get_button(dialog_->check_lines_top);
controller().params().lineTop(line_top);
bool const line_bottom = fl_get_button(dialog_->check_lines_bottom);
controller().params().lineBottom(line_bottom);
bool const pagebreak_top = fl_get_button(dialog_->check_pagebreaks_top);
controller().params().pagebreakTop(pagebreak_top);
bool const pagebreak_bottom = fl_get_button(dialog_->check_pagebreaks_bottom);
controller().params().pagebreakBottom(pagebreak_bottom);
/* alignment */
LyXAlignment align;
if (fl_get_button(dialog_->radio_align_left))
align = LYX_ALIGN_LEFT;
else if (fl_get_button(dialog_->radio_align_right))
align = LYX_ALIGN_RIGHT;
else if (fl_get_button(dialog_->radio_align_center))
align = LYX_ALIGN_CENTER;
else
align = LYX_ALIGN_BLOCK;
controller().params().align(align);
/* label width */
string const labelwidthstring =
getString(dialog_->input_labelwidth);
controller().params().labelWidthString(labelwidthstring);
/* indendation */
bool const noindent = fl_get_button(dialog_->check_noindent);
controller().params().noindent(noindent);
/* get spacing */
Spacing::Space linespacing = Spacing::Default;
string other;
switch (fl_get_choice(dialog_->choice_linespacing)) {
case 1:
linespacing = Spacing::Default;
break;
case 2:
linespacing = Spacing::Single;
break;
case 3:
linespacing = Spacing::Onehalf;
break;
case 4:
linespacing = Spacing::Double;
break;
case 5:
linespacing = Spacing::Other;
other = getString(dialog_->input_linespacing);
break;
}
Spacing const spacing(linespacing, other);
controller().params().spacing(spacing);
}
namespace {
void setWidgetsFromVSpace(VSpace const & space,
FL_OBJECT * choice_type,
FL_OBJECT * input_length,
FL_OBJECT * choice_length,
FL_OBJECT * check_keep)
{
// Paranoia check!
lyx::Assert(choice_type && choice_type->objclass == FL_CHOICE &&
input_length && input_length->objclass == FL_INPUT &&
choice_length && choice_length->objclass == FL_CHOICE &&
check_keep && check_keep->objclass == FL_CHECKBUTTON);
fl_set_input(input_length, "");
setEnabled(input_length, false);
setEnabled(choice_length, false);
switch (space.kind()) {
case VSpace::NONE:
fl_set_choice(choice_type, 1);
break;
case VSpace::DEFSKIP:
fl_set_choice(choice_type, 2);
break;
case VSpace::SMALLSKIP:
fl_set_choice(choice_type, 3);
break;
case VSpace::MEDSKIP:
fl_set_choice(choice_type, 4);
break;
case VSpace::BIGSKIP:
fl_set_choice(choice_type, 5);
break;
case VSpace::VFILL:
fl_set_choice(choice_type, 6);
break;
case VSpace::LENGTH:
{
fl_set_choice(choice_type, 7);
setEnabled(input_length, true);
setEnabled(choice_length, true);
bool const metric = lyxrc.default_papersize > 3;
string const default_unit = metric ? "cm" : "in";
string const length = space.length().asString();
updateWidgetsFromLengthString(input_length, choice_length,
length, default_unit);
break;
}
}
fl_set_button(check_keep, space.keep());
}
} // namespace anon
void FormParagraph::update()
{
if (!dialog_.get())
return;
/* label width */
string labelwidth = controller().params().labelWidthString();
fl_set_input(dialog_->input_labelwidth, labelwidth.c_str());
setEnabled(dialog_->input_labelwidth,
labelwidth != _("Senseless with this layout!"));
/* alignment */
fl_set_button(dialog_->radio_align_right, 0);
fl_set_button(dialog_->radio_align_left, 0);
fl_set_button(dialog_->radio_align_center, 0);
fl_set_button(dialog_->radio_align_block, 0);
LyXAlignment align = controller().params().align();
switch (align) {
case LYX_ALIGN_RIGHT:
fl_set_button(dialog_->radio_align_right, 1);
break;
case LYX_ALIGN_LEFT:
fl_set_button(dialog_->radio_align_left, 1);
break;
case LYX_ALIGN_CENTER:
fl_set_button(dialog_->radio_align_center, 1);
break;
default:
fl_set_button(dialog_->radio_align_block, 1);
break;
}
LyXAlignment alignpos = controller().alignPossible();
setEnabled(dialog_->radio_align_block, bool(alignpos & LYX_ALIGN_BLOCK));
setEnabled(dialog_->radio_align_center, bool(alignpos & LYX_ALIGN_CENTER));
setEnabled(dialog_->radio_align_left, bool(alignpos & LYX_ALIGN_LEFT));
setEnabled(dialog_->radio_align_right, bool(alignpos & LYX_ALIGN_RIGHT));
// no inset-text-owned paragraph may have pagebreaks
bool ininset = controller().inInset();
setEnabled(dialog_->check_pagebreaks_top, !ininset);
setEnabled(dialog_->check_pagebreaks_bottom, !ininset);
/* lines, pagebreaks and indent */
fl_set_button(dialog_->check_lines_top,
controller().params().lineTop());
fl_set_button(dialog_->check_lines_bottom,
controller().params().lineBottom());
fl_set_button(dialog_->check_pagebreaks_top,
controller().params().pagebreakTop());
fl_set_button(dialog_->check_pagebreaks_bottom,
controller().params().pagebreakBottom());
fl_set_button(dialog_->check_noindent,
controller().params().noindent());
/* linespacing */
int linespacing;
Spacing const space = controller().params().spacing();
switch (space.getSpace()) {
default: linespacing = 1; break;
case Spacing::Single: linespacing = 2; break;
case Spacing::Onehalf: linespacing = 3; break;
case Spacing::Double: linespacing = 4; break;
case Spacing::Other: linespacing = 5; break;
}
fl_set_choice(dialog_->choice_linespacing, linespacing);
if (space.getSpace() == Spacing::Other) {
string const sp = tostr(space.getValue());
fl_set_input(dialog_->input_linespacing, sp.c_str());
setEnabled(dialog_->input_linespacing, true);
} else {
fl_set_input(dialog_->input_linespacing, "");
setEnabled(dialog_->input_linespacing, false);
}
/* vspace top */
setWidgetsFromVSpace(controller().params().spaceTop(),
dialog_->choice_space_above,
dialog_->input_space_above,
dialog_->choice_value_space_above,
dialog_->check_space_above);
/* vspace bottom */
setWidgetsFromVSpace(controller().params().spaceBottom(),
dialog_->choice_space_below,
dialog_->input_space_below,
dialog_->choice_value_space_below,
dialog_->check_space_below);
/* no indent */
fl_set_button(dialog_->check_noindent,
controller().params().noindent());
}
namespace {
void synchronizeSpaceWidgets(FL_OBJECT * choice_type,
FL_OBJECT * input_length,
FL_OBJECT * choice_length)
{
// Paranoia check!
lyx::Assert(choice_type && choice_type->objclass == FL_CHOICE &&
input_length && input_length->objclass == FL_INPUT &&
choice_length && choice_length->objclass == FL_CHOICE);
if (fl_get_choice(choice_type) != 7) {
fl_set_input(input_length, "");
setEnabled(input_length, false);
setEnabled(choice_length, false);
} else {
setEnabled(input_length, true);
setEnabled(choice_length, true);
string const length = getString(input_length);
if (rtrim(length).empty()) {
bool const metric = lyxrc.default_papersize > 3;
int const default_unit = metric ? 8 : 9;
fl_set_choice(choice_length, default_unit);
}
}
}
bool validSpaceWidgets(FL_OBJECT * choice_type, FL_OBJECT * input_length)
{
// Paranoia check!
lyx::Assert(choice_type && choice_type->objclass == FL_CHOICE &&
input_length && input_length->objclass == FL_INPUT);
if (fl_get_choice(choice_type) != 7)
return true;
string const input = getString(input_length);
return (input.empty() ||
isValidGlueLength(input) ||
isStrDbl(input));
}
} // namespace anon
ButtonPolicy::SMInput FormParagraph::input(FL_OBJECT * ob, long)
{
clearMessage();
// First check the buttons which are exclusive and you have to
// check only the actuall de/activated button.
//
// "Synchronize" the choices and input fields, making it
// impossible to commit senseless data.
if (ob == dialog_->choice_space_above) {
synchronizeSpaceWidgets(dialog_->choice_space_above,
dialog_->input_space_above,
dialog_->choice_value_space_above);
}
if (ob == dialog_->choice_space_below) {
synchronizeSpaceWidgets(dialog_->choice_space_below,
dialog_->input_space_below,
dialog_->choice_value_space_below);
}
// Display a warning if the input is senseless
bool valid = (validSpaceWidgets(dialog_->choice_space_above,
dialog_->input_space_above) &&
validSpaceWidgets(dialog_->choice_space_below,
dialog_->input_space_below));
if (!valid) {
postWarning(_("Invalid Length (valid example: 10mm)"));
}
int const choice_spacing = fl_get_choice(dialog_->choice_linespacing);
if (choice_spacing == 5)
setEnabled(dialog_->input_linespacing, true);
else {
fl_set_input(dialog_->input_linespacing, "");
setEnabled(dialog_->input_linespacing, false);
}
double const spacing =
strToDbl(getString(dialog_->input_linespacing));
if (choice_spacing == 5 && int(spacing) == 0)
valid = false;
return ButtonPolicy::SMI_VALID;
}