X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fentry.cpp;h=271c49a4b6cda21ca063f9e7e7339ea460c96de5;hb=73afd124ab87e8bace98db55517a56c797a9b8c7;hp=efb4b45c57d354ca4f11b453ff567fe58d108421;hpb=9b29612d1cde85fee9b3f011e86a5cabe5dbcce3;p=libs%2Fgltk.git

diff --git a/source/entry.cpp b/source/entry.cpp
index efb4b45..271c49a 100644
--- a/source/entry.cpp
+++ b/source/entry.cpp
@@ -1,7 +1,7 @@
 /* $Id$
 
 This file is part of libmspgltk
-Copyright © 2007  Mikko Rasa, Mikkosoft Productions
+Copyright © 2007-2011  Mikko Rasa, Mikkosoft Productions
 Distributed under the LGPL
 */
 
@@ -13,26 +13,75 @@ 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())
+Entry::Entry(const string &t):
+	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();
+
+	if(multiline)
+		check_view_range();
+}
+
+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::render_special(const Part &part) const
+{
+	if(part.get_name()=="text")
+		text.render(part, geom, first_row);
+	else if(part.get_name()=="cursor")
+	{
+		if(!text_part || !part.get_graphic(state))
+			return;
+
+		unsigned row, col;
+		text.offset_to_coords(edit_pos, row, col);
+
+		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, part.get_geometry().h);
+		GL::pop_matrix();
+	}
+	else if(part.get_name()=="slider")
+		slider->render();
 }
 
 void Entry::key_press(unsigned key, unsigned, wchar_t ch)
@@ -40,49 +89,136 @@ 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
+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::reposition_slider()
+{
+	if(!style || !slider)
+		return;
+
+	if(const Part *slider_part = style->get_part("slider"))
+	{
+		Geometry sgeom = slider_part->get_geometry();
+		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;
+
+	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);
+	}
+}
+
+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)