X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fentry.cpp;h=b2c78004b233b6ad9243e781639a6756a417387e;hb=HEAD;hp=efb4b45c57d354ca4f11b453ff567fe58d108421;hpb=9b29612d1cde85fee9b3f011e86a5cabe5dbcce3;p=libs%2Fgltk.git

diff --git a/source/entry.cpp b/source/entry.cpp
index efb4b45..b2c7800 100644
--- a/source/entry.cpp
+++ b/source/entry.cpp
@@ -1,92 +1,521 @@
-/* $Id$
-
-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 "slider.h"
 #include "style.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)
 {
-	update_style();
+	input_type = INPUT_TEXT;
+	set_text(t);
+}
+
+void Entry::autosize_special(const Part &part, Geometry &ageom) const
+{
+	if(part.get_name()=="text")
+	{
+		const Sides &margin = 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());
+		ageom.w = max(ageom.w, edit_width*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;
+			ageom.h = max(ageom.h, line_height+line_spacing*(edit_height-1)+margin.top+margin.bottom);
+		}
+		else
+			ageom.h = max(ageom.h, line_height+margin.top+margin.bottom);
+	}
+	else if(part.get_name()=="slider" && multiline)
+		autosize_child(*slider, part, ageom);
 }
 
 void Entry::set_text(const string &t)
 {
-	text=t;
-	edit_pos=text.size();
+	if(t!=text.get())
+	{
+		text = t;
+		signal_text_changed.emit(text.get());
+	}
+	set_edit_position(text.size());
+}
+
+void Entry::insert(size_t pos, const string &t)
+{
+	if(t.empty())
+		return;
+
+	text.insert(pos, t);
+	signal_text_changed.emit(text.get());
+
+	adjust_edit_position_for_change(pos, t.size());
+	if(multiline)
+		check_view_range();
+
+	mark_rebuild();
 }
 
-void Entry::key_press(unsigned key, unsigned, wchar_t ch)
+void Entry::erase(size_t pos, size_t len)
 {
-	if(key==Input::KEY_LEFT)
+	if(!len)
+		return;
+
+	text.erase(pos, len);
+	signal_text_changed.emit(text.get());
+
+	adjust_edit_position_for_change(pos, -len);
+	if(multiline)
+		check_view_range();
+
+	mark_rebuild();
+}
+
+bool Entry::get_selection(size_t &start, size_t &end) const
+{
+	if(!selection_active)
+		return false;
+
+	start = selection_pos;
+	end = edit_pos;
+	if(start>end)
+		swap(start, end);
+
+	return true;
+}
+
+void Entry::translate_position(size_t pos, size_t &row, size_t &col) const
+{
+	text.offset_to_coords(pos, row, col);
+}
+
+size_t Entry::translate_position(size_t row, size_t col) const
+{
+	return text.coords_to_offset(row, col);
+}
+
+void Entry::set_edit_size(unsigned w, unsigned h)
+{
+	edit_width = w;
+	edit_height = h;
+	signal_autosize_changed.emit();
+}
+
+void Entry::set_multiline(bool m)
+{
+	multiline = m;
+	if(multiline)
 	{
-		if(edit_pos>0)
-			--edit_pos;
+		if(!slider)
+		{
+			unique_ptr<VSlider> s = make_unique<VSlider>();
+			slider = s.get();
+			add(move(s));
+			slider->set_step(1);
+			slider->signal_value_changed.connect(sigc::mem_fun(this, &Entry::slider_value_changed));
+			mark_rebuild();
+		}
+		check_view_range();
 	}
-	else if(key==Input::KEY_RIGHT)
+}
+
+void Entry::rebuild_special(const Part &part)
+{
+	if(part.get_name()=="text")
+		text.build(part, state, geom, first_row, part_cache);
+	else if(part.get_name()=="cursor")
 	{
-		if(edit_pos<text.size())
-			++edit_pos;
+		State cursor_state = (cursor_blink ? ACTIVE : NORMAL);
+		const Graphic *graphic = part.get_graphic(state|cursor_state);
+		if(!text_part || !graphic || !graphic->get_texture())
+			return;
+
+		size_t 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::MeshBuilder bld(part_cache.create_mesh(part, *graphic->get_texture()));
+		bld.transform(GL::Matrix::translation(rgeom.x, rgeom.y, 0));
+		graphic->build(part.get_geometry().w, part.get_geometry().h, bld);
 	}
-	else if(key==Input::KEY_BACKSPACE)
+	else if(part.get_name()=="selection")
 	{
-		if(edit_pos>0)
-			text.erase(--edit_pos, 1);
+		if(!selection_active)
+			return;
+
+		const Graphic *graphic = part.get_graphic(state);
+		if(!text_part || !graphic || !graphic->get_texture())
+			return;
+
+		size_t start, end;
+		get_selection(start, end);
+
+		size_t row, col;
+		text.offset_to_coords(start, row, col);
+		size_t end_row, end_col;
+		text.offset_to_coords(end, end_row, end_col);
+
+		if(end_row<first_row || row>=first_row+visible_rows)
+			return;
+
+		if(row<first_row)
+		{
+			row = first_row;
+			col = 0;
+		}
+
+		if(end_row>=first_row+visible_rows)
+		{
+			end_row = first_row+visible_rows-1;
+			end_col = text.get_line_length(end_row);
+		}
+
+		while(row<=end_row)
+		{
+			size_t ec = (row==end_row ? end_col : text.get_line_length(row));
+			if(ec>col)
+			{
+				Geometry rgeom = text.coords_to_geometry(*text_part, geom, first_row, row, col);
+				Geometry egeom = text.coords_to_geometry(*text_part, geom, first_row, row, ec);
+
+				GL::MeshBuilder bld(part_cache.create_mesh(part, *graphic->get_texture()));
+				bld.transform(GL::Matrix::translation(rgeom.x, rgeom.y, 0));
+				graphic->build(egeom.x-rgeom.x, part.get_geometry().h, bld);
+			}
+
+			++row;
+			col = 0;
+		}
+	}
+	else if(part.get_name()=="slider")
+	{
+		if(multiline)
+		{
+			reposition_child(*slider, part);
+			Widget::rebuild_special(part);
+		}
 	}
 	else
+		Widget::rebuild_special(part);
+}
+
+void Entry::render_special(const Part &part, GL::Renderer &renderer) const
+{
+	if(part.get_name()=="slider" && multiline)
+		slider->render(renderer);
+}
+
+void Entry::touch_press(int x, int y, unsigned finger)
+{
+	if(finger==0)
+		set_focus();
+	Widget::touch_press(x, y, finger);
+}
+
+bool Entry::key_press(unsigned key, unsigned mod)
+{
+	got_key_press = true;
+	if(key==Input::KEY_BACKSPACE)
 	{
-		text.insert(edit_pos, Codecs::encode<Codecs::Utf8>(Codecs::ustring(1, ch)));
-		++edit_pos;
+		if(selection_active)
+			erase_selection(true);
+		else if(edit_pos>0)
+		{
+			size_t start_pos = text.move_offset(edit_pos, -1);
+			erase(start_pos, edit_pos-start_pos);
+		}
 	}
+	else if(key==Input::KEY_DELETE)
+	{
+		if(selection_active)
+			erase_selection(true);
+		else
+		{
+			size_t end_pos = text.move_offset(edit_pos, 1);
+			erase(edit_pos, end_pos-edit_pos);
+		}
+	}
+	else if(key==Input::KEY_ENTER && multiline)
+		insert(edit_pos, "\n");
+	else if(key==Input::KEY_END)
+	{
+		size_t row, col;
+		text.offset_to_coords(edit_pos, row, col);
+		set_edit_position(text.coords_to_offset(row, text.get_line_length(row)), mod==MOD_SHIFT);
+	}
+	else if(key==Input::KEY_HOME)
+	{
+		size_t row, col;
+		text.offset_to_coords(edit_pos, row, col);
+		set_edit_position(text.coords_to_offset(row, 0), mod==MOD_SHIFT);
+	}
+	else if(key==Input::KEY_PGUP)
+	{
+		size_t row, col;
+		text.offset_to_coords(edit_pos, row, col);
+		set_edit_position(text.coords_to_offset((row<visible_rows ? 0 : row-visible_rows), col), mod==MOD_SHIFT);
+	}
+	else if(key==Input::KEY_PGDN)
+	{
+		size_t row, col;
+		text.offset_to_coords(edit_pos, row, col);
+		set_edit_position(text.coords_to_offset(row+visible_rows, col), mod==MOD_SHIFT);
+	}
+	else if(key==Input::KEY_LEFT && mod==MOD_SHIFT)
+		move_edit_position(NAV_LEFT, true);
+	else if(key==Input::KEY_RIGHT && mod==MOD_SHIFT)
+		move_edit_position(NAV_RIGHT, true);
+	else if(key==Input::KEY_UP && mod==MOD_SHIFT && multiline)
+		move_edit_position(NAV_UP, true);
+	else if(key==Input::KEY_DOWN && mod==MOD_SHIFT && multiline)
+		move_edit_position(NAV_DOWN, true);
+	else
+		return false;
+
+	return true;
 }
 
-void Entry::render_special(const Part &part) const
+bool Entry::character(wchar_t ch)
 {
-	if(part.get_name()=="text")
-		render_text(part, text);
-	else if(part.get_name()=="cursor")
+	if(got_key_press && ch>=' ' && ch!=0x7F)
 	{
-		if(!part.get_graphic(state))
-			return;
+		if(selection_active)
+			erase_selection(false);
+		insert(edit_pos, StringCodec::encode<StringCodec::Utf8>(StringCodec::ustring(1, ch)));
+		return true;
+	}
+
+	return false;
+}
+
+void Entry::focus_in()
+{
+	cursor_blink = true;
+	Widget::focus_in();
+	check_cursor_blink();
+}
+
+void Entry::focus_out()
+{
+	Widget::focus_out();
+	got_key_press = false;
+	check_cursor_blink();
+}
 
-		const GL::Font *const font=style->get_font();
-		const float font_size=font->get_default_size();
+bool Entry::navigate(Navigation nav)
+{
+	if(nav==NAV_LEFT || nav==NAV_RIGHT || ((nav==NAV_DOWN || nav==NAV_UP) && multiline))
+		move_edit_position(nav, false);
+	else
+		return false;
+
+	return true;
+}
 
-		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());
+void Entry::animate(const Time::TimeDelta &)
+{
+	cursor_blink = !cursor_blink;
+	mark_rebuild();
+}
+
+void Entry::on_size_change()
+{
+	if(multiline)
+		check_view_range();
+}
+
+void Entry::on_style_change()
+{
+	text.set_style(style);
 
-		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(!style)
+	{
+		text_part = nullptr;
+		return;
 	}
+
+	text_part = style->find_part("text");
+
+	if(multiline)
+		check_view_range();
+
+	check_cursor_blink();
 }
 
+void Entry::move_edit_position(Navigation nav, bool select)
+{
+	if(nav==NAV_LEFT)
+		set_edit_position(text.move_offset(edit_pos, -1), select);
+	else if(nav==NAV_RIGHT)
+		set_edit_position(text.move_offset(edit_pos, 1), select);
+	else if(nav==NAV_DOWN)
+	{
+		size_t row, col;
+		text.offset_to_coords(edit_pos, row, col);
+		set_edit_position(text.coords_to_offset(row+1, col), select);
+	}
+	else if(nav==NAV_UP)
+	{
+		size_t row, col;
+		text.offset_to_coords(edit_pos, row, col);
+		set_edit_position((row>0 ? text.coords_to_offset(row-1, col) : 0), select);
+	}
+	else
+		throw invalid_argument("Entry::move_edit_position");
+}
 
-Entry::Loader::Loader(Entry &ent):
-	Widget::Loader(ent)
-{ }
+void Entry::adjust_edit_position_for_change(size_t pos, ptrdiff_t change)
+{
+	size_t old_edit_pos = edit_pos;
+	size_t old_select_pos = selection_pos;
+
+	if(change>0)
+	{
+		if(edit_pos>=pos)
+			edit_pos += change;
+		if(selection_active && selection_pos>=pos)
+			selection_pos += change;
+	}
+	else if(change<0)
+	{
+		if(edit_pos>=pos)
+			edit_pos -= min<size_t>(edit_pos-pos, -change);
+		if(selection_active && selection_pos>=pos)
+			selection_pos -= min<size_t>(selection_pos-pos, -change);
+	}
+
+	if(edit_pos!=old_edit_pos)
+		signal_edit_position_changed.emit(edit_pos);
+	if(selection_active && (edit_pos!=old_edit_pos || selection_pos!=old_select_pos))
+	{
+		size_t start, end;
+		if(get_selection(start, end))
+			signal_selection_changed.emit(start, end);
+	}
+}
+
+void Entry::set_edit_position(size_t ep, bool select)
+{
+	bool selection_was_active = selection_active;
+	if(select && !selection_active)
+		selection_pos = edit_pos;
+	selection_active = select;
+
+	size_t old_edit_pos = edit_pos;
+	edit_pos = min(ep, text.size());
+
+	if(edit_pos!=old_edit_pos)
+	{
+		signal_edit_position_changed.emit(edit_pos);
+		size_t start, end;
+		if(get_selection(start, end))
+			signal_selection_changed.emit(start, end);
+		else if(selection_was_active)
+			signal_selection_changed.emit(edit_pos, edit_pos);
+	}
+
+	if(multiline)
+		check_view_range();
+	mark_rebuild();
+}
+
+void Entry::erase_selection(bool emit_change)
+{
+	size_t start, end;
+	if(!get_selection(start, end))
+		return;
+
+	text.erase(start, end-start);
+	if(emit_change)
+		signal_text_changed.emit(text.get());
+	set_edit_position(start, false);
+}
+
+void Entry::check_cursor_blink()
+{
+	const Part *cursor_part = style->find_part("cursor");
+	bool has_blink = (cursor_part && cursor_part->get_graphic(ACTIVE|FOCUS)!=cursor_part->get_graphic(NORMAL|FOCUS));
+
+	cursor_blink = (state&FOCUS);
+	if((state&FOCUS) && style && has_blink)
+	{
+		set_animation_interval(Time::sec/2);
+		mark_rebuild();
+	}
+	else
+	{
+		if(has_blink)
+			mark_rebuild();
+		stop_animation();
+	}
+}
+
+void Entry::check_view_range()
+{
+	if(!multiline || !text_part)
+		return;
+
+	visible_rows = text.get_visible_lines(*text_part, geom, nullptr);
+
+	size_t row, col;
+	text.offset_to_coords(edit_pos, row, col);
+
+	size_t old_first_row = first_row;
+	if(first_row>row)
+		first_row = row;
+	else if(row>=first_row+visible_rows)
+		first_row = row+1-visible_rows;
+
+	size_t scroll = max<size_t>(text.get_n_lines(), visible_rows)-visible_rows;
+	if(first_row>scroll)
+		first_row = scroll;
+
+	if(first_row!=old_first_row)
+		signal_scroll_position_changed.emit(first_row);
+
+	slider->set_range(0, scroll);
+	slider->set_page_size(visible_rows);
+	slider->set_value(scroll-first_row);
+}
+
+void Entry::slider_value_changed(double value)
+{
+	if(text.get_n_lines()>visible_rows)
+	{
+		size_t old_first_row = first_row;
+		first_row = text.get_n_lines()-visible_rows-static_cast<size_t>(value);
+		if(first_row!=old_first_row)
+			signal_scroll_position_changed.emit(first_row);
+		mark_rebuild();
+	}
+}
+
+
+Entry::Loader::Loader(Entry &e):
+	DataFile::DerivedObjectLoader<Entry, Widget::Loader>(e)
+{
+	add("edit_size", &Entry::edit_width, &Entry::edit_height);
+	add("multiline", &Loader::multiline);
+}
+
+void Entry::Loader::multiline(bool m)
+{
+	obj.set_multiline(m);
+}
 
 } // namespace GLtk
 } // namespace Msp