/* $Id$
This file is part of libmspgltk
-Copyright © 2007 Mikko Rasa, Mikkosoft Productions
+Copyright © 2007-2010 Mikko Rasa, Mikkosoft Productions
Distributed under the LGPL
*/
#include "graphic.h"
#include "part.h"
#include "style.h"
+#include "vslider.h"
using namespace std;
-#include <iostream>
-
namespace Msp {
namespace GLtk {
Entry::Entry(const Resources &r, const string &t):
Widget(r),
- text(t),
- edit_pos(text.size())
+ Container(r),
+ text(),
+ multiline(false),
+ edit_pos(0),
+ first_row(0),
+ visible_rows(1),
+ text_part(0),
+ slider(0)
{
update_style();
+ set_text(t);
}
void Entry::set_text(const string &t)
{
- text=t;
- edit_pos=text.size();
+ text = t;
+ edit_pos = text.size();
+}
+
+void Entry::set_multiline(bool m)
+{
+ multiline = m;
+ if(multiline && !slider)
+ {
+ slider = new VSlider(res);
+ add(*slider);
+ slider->set_step(1);
+ slider->signal_value_changed.connect(sigc::mem_fun(this, &Entry::slider_value_changed));
+ reposition_slider();
+ }
}
void Entry::key_press(unsigned key, unsigned, wchar_t ch)
if(key==Input::KEY_LEFT)
{
if(edit_pos>0)
+ {
--edit_pos;
+ check_view_range();
+ }
}
else if(key==Input::KEY_RIGHT)
{
if(edit_pos<text.size())
+ {
++edit_pos;
+ check_view_range();
+ }
+ }
+ else if(key==Input::KEY_DOWN && multiline)
+ {
+ unsigned row, col;
+ text.offset_to_coords(edit_pos, row, col);
+ edit_pos = text.coords_to_offset(row+1, col);
+ check_view_range();
+ }
+ else if(key==Input::KEY_UP && multiline)
+ {
+ unsigned row, col;
+ text.offset_to_coords(edit_pos, row, col);
+ if(row>0)
+ {
+ edit_pos = text.coords_to_offset(row-1, col);
+ check_view_range();
+ }
+ else
+ edit_pos = 0;
}
else if(key==Input::KEY_BACKSPACE)
{
if(edit_pos>0)
+ {
text.erase(--edit_pos, 1);
+ check_view_range();
+ }
}
- else
+ else if(key==Input::KEY_ENTER)
+ {
+ if(multiline)
+ {
+ text.insert(edit_pos++, "\n");
+ check_view_range();
+ }
+ else
+ signal_enter.emit();
+ }
+ else if(ch>=' ')
{
text.insert(edit_pos, Codecs::encode<Codecs::Utf8>(Codecs::ustring(1, ch)));
++edit_pos;
void Entry::render_special(const Part &part) const
{
if(part.get_name()=="text")
- render_text(part, text);
+ text.render(part, geom, first_row);
else if(part.get_name()=="cursor")
{
- if(!part.get_graphic(state))
+ if(!text_part || !part.get_graphic(state))
return;
- const GL::Font *const font=style->get_font();
- const float font_size=font->get_default_size();
+ unsigned row, col;
+ text.offset_to_coords(edit_pos, row, col);
- Geometry rgeom=part.get_geometry();
- rgeom.x=static_cast<unsigned>(font->get_string_width(text.substr(0, edit_pos))*font_size);
- rgeom.w=static_cast<unsigned>(font->get_string_width(text)*font_size);
- part.get_alignment().apply(rgeom, geom, part.get_margin());
+ if(row<first_row || row>=first_row+visible_rows)
+ return;
+
+ Geometry rgeom = text.coords_to_geometry(*text_part, geom, first_row, row, col);
GL::push_matrix();
GL::translate(rgeom.x, rgeom.y, 0);
- part.get_graphic(state)->render(part.get_geometry().w, rgeom.h);
+ part.get_graphic(state)->render(part.get_geometry().w, part.get_geometry().h);
GL::pop_matrix();
}
+ else if(part.get_name()=="slider")
+ slider->render();
+}
+
+void Entry::on_geometry_change()
+{
+ reposition_slider();
+}
+
+void Entry::on_style_change()
+{
+ text_part = 0;
+ for(list<Part>::const_iterator i=style->get_parts().begin(); i!=style->get_parts().end(); ++i)
+ if(i->get_name()=="text")
+ text_part = &*i;
+
+ text.set_style(style);
+ reposition_slider();
+}
+
+void Entry::reposition_slider()
+{
+ if(!slider)
+ return;
+
+ for(list<Part>::const_iterator i=style->get_parts().begin(); i!=style->get_parts().end(); ++i)
+ if(i->get_name()=="slider")
+ {
+ Geometry sgeom = i->get_geometry();
+ i->get_alignment().apply(sgeom, geom, i->get_margin());
+ slider->set_geometry(sgeom);
+ }
+}
+
+void Entry::slider_value_changed(double value)
+{
+ if(text.get_n_lines()>visible_rows)
+ first_row = text.get_n_lines()-visible_rows-static_cast<unsigned>(value);
+}
+
+void Entry::check_view_range()
+{
+ if(!multiline || !text_part)
+ return;
+
+ const GL::Font *font = style->get_font();
+ float font_size = font->get_default_size();
+ unsigned line_spacing = static_cast<unsigned>(font_size*6/5);
+
+ const Sides &margin = text_part->get_margin();
+ visible_rows = max((geom.h-margin.top-margin.bottom)/line_spacing, 1U);
+
+ unsigned row, col;
+ text.offset_to_coords(edit_pos, row, col);
+
+ if(first_row>row)
+ first_row = row;
+ else if(row>=first_row+visible_rows)
+ first_row = row+1-visible_rows;
+
+ if(slider)
+ {
+ unsigned scroll = max(text.get_n_lines(), visible_rows)-visible_rows;
+ slider->set_range(0, scroll);
+ slider->set_value(scroll-first_row);
+ }
}