-/* $Id$
-
-This file is part of libmspgltk
-Copyright © 2007 Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
#include <msp/gl/matrix.h>
+#include <msp/gl/meshbuilder.h>
#include <msp/gl/texture.h>
-#include <msp/gl/transform.h>
#include <msp/input/keys.h>
#include "entry.h"
#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())
+Entry::Entry(const string &t):
+ text(),
+ multiline(false),
+ edit_pos(0),
+ first_row(0),
+ visible_rows(1),
+ text_part(0),
+ slider(0)
+{
+ set_text(t);
+}
+
+void Entry::autosize()
{
- update_style();
+ if(!style)
+ return;
+
+ Widget::autosize();
+
+ if(text_part)
+ {
+ const Sides &margin = text_part->get_margin();
+ const GL::Font &font = style->get_font();
+ unsigned en_width = static_cast<unsigned>(font.get_string_width("n")*style->get_font_size());
+ geom.w = max(geom.w, 10*en_width+margin.left+margin.right);
+
+ unsigned line_height = static_cast<unsigned>((font.get_ascent()-font.get_descent())*style->get_font_size());
+ if(multiline)
+ {
+ unsigned line_spacing = style->get_font_size()*6/5;
+ geom.h = max(geom.h, line_height+line_spacing*2+margin.top+margin.bottom);
+ }
+ else
+ geom.h = max(geom.h, line_height+margin.top+margin.bottom);
+ }
+
+ if(multiline)
+ {
+ if(const Part *slider_part = style->get_part("slider"))
+ {
+ Geometry sgeom = slider_part->get_geometry();
+ if(!sgeom.w || !sgeom.h)
+ {
+ slider->autosize();
+ if(!sgeom.w)
+ sgeom.w = slider->get_geometry().w;
+ if(!sgeom.h)
+ sgeom.h = slider->get_geometry().h;
+ }
+
+ const Sides &margin = slider_part->get_margin();
+ geom.w = max(geom.w, sgeom.w+margin.left+margin.right);
+ geom.h = max(geom.h, sgeom.h+margin.top+margin.bottom);
+
+ reposition_slider();
+ }
+
+ check_view_range();
+ }
+
+ rebuild();
}
void Entry::set_text(const string &t)
{
- text=t;
- edit_pos=text.size();
+ text = t;
+ edit_pos = text.size();
+
+ if(multiline)
+ check_view_range();
+
+ rebuild();
+}
+
+void Entry::set_multiline(bool m)
+{
+ multiline = m;
+ if(multiline)
+ {
+ if(!slider)
+ {
+ slider = new VSlider;
+ add(*slider);
+ slider->set_step(1);
+ slider->signal_value_changed.connect(sigc::mem_fun(this, &Entry::slider_value_changed));
+ reposition_slider();
+ }
+ check_view_range();
+ }
+}
+
+void Entry::rebuild_special(const Part &part, CachedPart &cache)
+{
+ if(part.get_name()=="text")
+ text.build(part, geom, first_row, cache);
+ else if(part.get_name()=="cursor")
+ {
+ if(!text_part || !part.get_graphic(state))
+ {
+ cache.texture = 0;
+ return;
+ }
+
+ unsigned row, col;
+ text.offset_to_coords(edit_pos, row, col);
+
+ if(row<first_row || row>=first_row+visible_rows)
+ {
+ cache.texture = 0;
+ return;
+ }
+
+ Geometry rgeom = text.coords_to_geometry(*text_part, geom, first_row, row, col);
+
+ cache.texture = part.get_graphic(state)->get_texture();
+ cache.clear_mesh();
+
+ GL::MeshBuilder bld(*cache.mesh);
+ bld.matrix() *= GL::Matrix::translation(rgeom.x, rgeom.y, 0);
+ part.get_graphic(state)->build(part.get_geometry().w, part.get_geometry().h, bld);
+ }
+}
+
+void Entry::render_special(const Part &part, GL::Renderer &renderer) const
+{
+ if(part.get_name()=="slider" && multiline)
+ slider->render(renderer);
}
-void Entry::key_press(unsigned key, unsigned, wchar_t ch)
+void Entry::key_press(unsigned key, unsigned)
{
if(key==Input::KEY_LEFT)
{
if(edit_pos>0)
- --edit_pos;
+ set_edit_position(edit_pos-1);
}
else if(key==Input::KEY_RIGHT)
{
if(edit_pos<text.size())
- ++edit_pos;
+ set_edit_position(edit_pos+1);
+ }
+ else if(key==Input::KEY_DOWN && multiline)
+ {
+ unsigned row, col;
+ text.offset_to_coords(edit_pos, row, col);
+ set_edit_position(text.coords_to_offset(row+1, col));
+ }
+ else if(key==Input::KEY_UP && multiline)
+ {
+ unsigned row, col;
+ text.offset_to_coords(edit_pos, row, col);
+ set_edit_position(row>0 ? text.coords_to_offset(row-1, col) : 0);
}
else if(key==Input::KEY_BACKSPACE)
{
if(edit_pos>0)
+ {
text.erase(--edit_pos, 1);
+ check_view_range();
+ rebuild();
+ }
}
else if(key==Input::KEY_ENTER)
- signal_enter.emit();
- else if(ch>=' ')
{
- text.insert(edit_pos, Codecs::encode<Codecs::Utf8>(Codecs::ustring(1, ch)));
+ if(multiline)
+ {
+ text.insert(edit_pos++, "\n");
+ check_view_range();
+ rebuild();
+ }
+ else
+ signal_enter.emit();
+ }
+}
+
+void Entry::character(wchar_t ch)
+{
+ if(ch>=' ')
+ {
+ text.insert(edit_pos, StringCodec::encode<StringCodec::Utf8>(StringCodec::ustring(1, ch)));
++edit_pos;
+ rebuild();
}
}
-void Entry::render_special(const Part &part) const
+void Entry::on_geometry_change()
{
- if(part.get_name()=="text")
- render_text(part, text);
- else if(part.get_name()=="cursor")
+ reposition_slider();
+
+ if(multiline)
+ check_view_range();
+}
+
+void Entry::on_style_change()
+{
+ text.set_style(style);
+
+ if(!style)
{
- if(!part.get_graphic(state))
- return;
+ text_part = 0;
+ return;
+ }
- const GL::Font *const font=style->get_font();
- const float font_size=font->get_default_size();
+ text_part = style->get_part("text");
- 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());
+ reposition_slider();
- GL::push_matrix();
- GL::translate(rgeom.x, rgeom.y, 0);
- part.get_graphic(state)->render(part.get_geometry().w, rgeom.h);
- GL::pop_matrix();
+ if(multiline)
+ check_view_range();
+}
+
+void Entry::set_edit_position(unsigned ep)
+{
+ edit_pos = ep;
+ check_view_range();
+ rebuild();
+}
+
+void Entry::reposition_slider()
+{
+ if(!style || !slider)
+ return;
+
+ if(const Part *slider_part = style->get_part("slider"))
+ {
+ Geometry sgeom = slider_part->get_geometry();
+ if(!sgeom.w || !sgeom.h)
+ {
+ slider->autosize();
+ if(!sgeom.w)
+ sgeom.w = slider->get_geometry().w;
+ if(!sgeom.h)
+ sgeom.h = slider->get_geometry().h;
+ }
+
+ slider_part->get_alignment().apply(sgeom, geom, slider_part->get_margin());
+ slider->set_geometry(sgeom);
}
}
+void Entry::check_view_range()
+{
+ if(!multiline || !text_part)
+ return;
+
+ float font_size = style->get_font_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;
+
+ unsigned scroll = max(text.get_n_lines(), visible_rows)-visible_rows;
+ slider->set_range(0, scroll);
+ slider->set_value(scroll-first_row);
+}
+
+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);
+}
+
Entry::Loader::Loader(Entry &ent):
Widget::Loader(ent)