X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fentry.cpp;h=11fd2423c8cffc3e6d25e4760f29bb33203b1eee;hb=cecc9edd95fea4728325575406deb866db8227ee;hp=16954a70f5774858b34b86622de200abe2a4376b;hpb=4b52d16bc895f9d969383d7a7d6a3558c1972cc5;p=libs%2Fgltk.git

diff --git a/source/entry.cpp b/source/entry.cpp
index 16954a7..11fd242 100644
--- a/source/entry.cpp
+++ b/source/entry.cpp
@@ -23,7 +23,10 @@ Entry::Entry(const string &t):
 	visible_rows(1),
 	text_part(0),
 	slider(0),
-	got_key_press(false)
+	got_key_press(false),
+	cursor_blink(true),
+	selection_active(false),
+	selection_pos(0)
 {
 	input_type = INPUT_TEXT;
 	set_text(t);
@@ -53,13 +56,88 @@ void Entry::autosize_special(const Part &part, Geometry &ageom) const
 
 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(unsigned pos, const string &t)
+{
+	if(t.empty())
+		return;
+
+	text.insert(pos, t);
+
+	unsigned old_edit_pos = edit_pos;
+	if(edit_pos>=pos)
+		edit_pos += t.size();
+	if(selection_active && selection_pos>=pos)
+		selection_pos += t.size();
+
+	signal_text_changed.emit(text.get());
+	if(edit_pos!=old_edit_pos)
+		signal_edit_position_changed.emit(edit_pos);
+
+	if(multiline)
+		check_view_range();
+
+	mark_rebuild();
+}
+
+void Entry::erase(unsigned pos, unsigned len)
+{
+	if(!len)
+		return;
+
+	text.erase(pos, len);
+
+	unsigned old_edit_pos = edit_pos;
+	if(edit_pos>=pos+len)
+		edit_pos -= len;
+	else if(edit_pos>=pos)
+		edit_pos = pos;
+	if(selection_active)
+	{
+		if(selection_pos>=pos+len)
+			selection_pos -= len;
+		else if(selection_pos>=pos)
+			selection_pos = pos;
+	}
+
+	signal_text_changed.emit(text.get());
+	if(edit_pos!=old_edit_pos)
+		signal_edit_position_changed.emit(edit_pos);
 
 	if(multiline)
 		check_view_range();
 
-	rebuild();
+	mark_rebuild();
+}
+
+bool Entry::get_selection(unsigned &start, unsigned &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(unsigned pos, unsigned &row, unsigned &col) const
+{
+	text.offset_to_coords(pos, row, col);
+}
+
+unsigned Entry::translate_position(unsigned row, unsigned col) const
+{
+	return text.coords_to_offset(row, col);
 }
 
 void Entry::set_edit_size(unsigned w, unsigned h)
@@ -80,7 +158,7 @@ void Entry::set_multiline(bool m)
 			add(*slider);
 			slider->set_step(1);
 			slider->signal_value_changed.connect(sigc::mem_fun(this, &Entry::slider_value_changed));
-			rebuild();
+			mark_rebuild();
 		}
 		check_view_range();
 	}
@@ -92,7 +170,8 @@ void Entry::rebuild_special(const Part &part)
 		text.build(part, state, geom, first_row, part_cache);
 	else if(part.get_name()=="cursor")
 	{
-		const Graphic *graphic = part.get_graphic(state);
+		State cursor_state = (cursor_blink ? ACTIVE : NORMAL);
+		const Graphic *graphic = part.get_graphic(state|cursor_state);
 		if(!text_part || !graphic || !graphic->get_texture())
 			return;
 
@@ -108,6 +187,55 @@ void Entry::rebuild_special(const Part &part)
 		bld.matrix() *= GL::Matrix::translation(rgeom.x, rgeom.y, 0);
 		graphic->build(part.get_geometry().w, part.get_geometry().h, bld);
 	}
+	else if(part.get_name()=="selection")
+	{
+		if(!selection_active)
+			return;
+
+		const Graphic *graphic = part.get_graphic(state);
+		if(!text_part || !graphic || !graphic->get_texture())
+			return;
+
+		unsigned start, end;
+		get_selection(start, end);
+
+		unsigned row, col;
+		text.offset_to_coords(start, row, col);
+		unsigned 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)
+		{
+			unsigned 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.matrix() *= 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)
@@ -126,51 +254,70 @@ void Entry::render_special(const Part &part, GL::Renderer &renderer) const
 		slider->render(renderer);
 }
 
-bool Entry::key_press(unsigned key, unsigned)
+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_LEFT)
+	if(key==Input::KEY_BACKSPACE)
 	{
-		if(edit_pos>0)
-			set_edit_position(edit_pos-1);
+		if(selection_active)
+			erase_selection(true);
+		else if(edit_pos>0)
+		{
+			unsigned start_pos = text.move_offset(edit_pos, -1);
+			erase(start_pos, edit_pos-start_pos);
+		}
 	}
-	else if(key==Input::KEY_RIGHT)
+	else if(key==Input::KEY_DELETE)
 	{
-		if(edit_pos<text.size())
-			set_edit_position(edit_pos+1);
+		if(selection_active)
+			erase_selection(true);
+		else
+		{
+			unsigned end_pos = text.move_offset(edit_pos, 1);
+			erase(edit_pos, end_pos-edit_pos);
+		}
 	}
-	else if(key==Input::KEY_DOWN && multiline)
+	else if(key==Input::KEY_ENTER && multiline)
+		insert(edit_pos, "\n");
+	else if(key==Input::KEY_END)
 	{
 		unsigned row, col;
 		text.offset_to_coords(edit_pos, row, col);
-		set_edit_position(text.coords_to_offset(row+1, col));
+		set_edit_position(text.coords_to_offset(row, text.get_line_length(row)), mod==MOD_SHIFT);
 	}
-	else if(key==Input::KEY_UP && multiline)
+	else if(key==Input::KEY_HOME)
 	{
 		unsigned row, col;
 		text.offset_to_coords(edit_pos, row, col);
-		set_edit_position(row>0 ? text.coords_to_offset(row-1, col) : 0);
+		set_edit_position(text.coords_to_offset(row, 0), mod==MOD_SHIFT);
 	}
-	else if(key==Input::KEY_BACKSPACE)
+	else if(key==Input::KEY_PGUP)
 	{
-		if(edit_pos>0)
-		{
-			text.erase(--edit_pos, 1);
-			check_view_range();
-			rebuild();
-		}
+		unsigned 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_ENTER)
+	else if(key==Input::KEY_PGDN)
 	{
-		if(multiline)
-		{
-			text.insert(edit_pos++, "\n");
-			check_view_range();
-			rebuild();
-		}
-		else
-			signal_enter.emit();
+		unsigned 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;
 
@@ -179,24 +326,50 @@ bool Entry::key_press(unsigned key, unsigned)
 
 bool Entry::character(wchar_t ch)
 {
-	if(got_key_press && ch>=' ')
+	if(got_key_press && ch>=' ' && ch!=0x7F)
 	{
-		text.insert(edit_pos, StringCodec::encode<StringCodec::Utf8>(StringCodec::ustring(1, ch)));
-		++edit_pos;
-		rebuild();
+		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();
 }
 
-void Entry::on_geometry_change()
+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 if(nav==NAV_ACCEPT && !signal_enter.empty())
+		signal_enter.emit();
+	else
+		return false;
+
+	return true;
+}
+
+void Entry::animate(const Time::TimeDelta &)
+{
+	cursor_blink = !cursor_blink;
+	mark_rebuild();
+}
+
+void Entry::on_size_change()
 {
 	if(multiline)
 		check_view_range();
@@ -216,13 +389,78 @@ void Entry::on_style_change()
 
 	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)
+	{
+		unsigned 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)
+	{
+		unsigned 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");
+}
+
+void Entry::set_edit_position(unsigned ep, bool select)
+{
+	if(select && !selection_active)
+		selection_pos = edit_pos;
+	selection_active = select;
+
+	unsigned old_edit_pos = edit_pos;
+	edit_pos = min(ep, text.size());
+
+	if(edit_pos!=old_edit_pos)
+		signal_edit_position_changed.emit(edit_pos);
+
+	if(multiline)
+		check_view_range();
+	mark_rebuild();
 }
 
-void Entry::set_edit_position(unsigned ep)
+void Entry::erase_selection(bool emit_change)
 {
-	edit_pos = ep;
-	check_view_range();
-	rebuild();
+	unsigned 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->get_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()
@@ -230,21 +468,24 @@ 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);
+	visible_rows = text.get_visible_lines(*text_part, geom, 0);
 
 	unsigned row, col;
 	text.offset_to_coords(edit_pos, row, col);
 
+	unsigned 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;
 
 	unsigned scroll = max(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_value(scroll-first_row);
 }
@@ -252,7 +493,13 @@ void Entry::check_view_range()
 void Entry::slider_value_changed(double value)
 {
 	if(text.get_n_lines()>visible_rows)
+	{
+		unsigned old_first_row = first_row;
 		first_row = text.get_n_lines()-visible_rows-static_cast<unsigned>(value);
+		if(first_row!=old_first_row)
+			signal_scroll_position_changed.emit(first_row);
+		mark_rebuild();
+	}
 }