X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fentry.cpp;h=b2c78004b233b6ad9243e781639a6756a417387e;hb=HEAD;hp=87f88c75eadd39f94929f21745b131f363a394e6;hpb=d309eb8633be1d9f08d1e9cd9930d68d8b169367;p=libs%2Fgltk.git

diff --git a/source/entry.cpp b/source/entry.cpp
index 87f88c7..b2c7800 100644
--- a/source/entry.cpp
+++ b/source/entry.cpp
@@ -5,26 +5,15 @@
 #include "entry.h"
 #include "graphic.h"
 #include "part.h"
+#include "slider.h"
 #include "style.h"
-#include "vslider.h"
 
 using namespace std;
 
 namespace Msp {
 namespace GLtk {
 
-Entry::Entry(const string &t):
-	text(),
-	multiline(false),
-	edit_width(10),
-	edit_height(1),
-	edit_pos(0),
-	first_row(0),
-	visible_rows(1),
-	text_part(0),
-	slider(0),
-	got_key_press(false),
-	cursor_blink(true)
+Entry::Entry(const string &t)
 {
 	input_type = INPUT_TEXT;
 	set_text(t);
@@ -54,13 +43,65 @@ 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(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::erase(size_t pos, size_t len)
+{
+	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();
 
-	rebuild();
+	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)
@@ -77,11 +118,12 @@ void Entry::set_multiline(bool m)
 	{
 		if(!slider)
 		{
-			slider = new VSlider;
-			add(*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));
-			rebuild();
+			mark_rebuild();
 		}
 		check_view_range();
 	}
@@ -98,7 +140,7 @@ void Entry::rebuild_special(const Part &part)
 		if(!text_part || !graphic || !graphic->get_texture())
 			return;
 
-		unsigned row, col;
+		size_t row, col;
 		text.offset_to_coords(edit_pos, row, col);
 
 		if(row<first_row || row>=first_row+visible_rows)
@@ -107,9 +149,58 @@ void Entry::rebuild_special(const Part &part)
 		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.matrix() *= GL::Matrix::translation(rgeom.x, rgeom.y, 0);
+		bld.transform(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;
+
+		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)
@@ -135,24 +226,63 @@ void Entry::touch_press(int x, int y, unsigned finger)
 	Widget::touch_press(x, y, finger);
 }
 
-bool Entry::key_press(unsigned key, unsigned)
+bool Entry::key_press(unsigned key, unsigned mod)
 {
 	got_key_press = true;
 	if(key==Input::KEY_BACKSPACE)
 	{
-		if(edit_pos>0)
+		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
 		{
-			text.erase(--edit_pos, 1);
-			check_view_range();
-			rebuild();
+			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)
 	{
-		text.insert(edit_pos++, "\n");
-		check_view_range();
-		rebuild();
+		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;
 
@@ -161,11 +291,11 @@ 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;
 	}
 
@@ -188,30 +318,8 @@ void Entry::focus_out()
 
 bool Entry::navigate(Navigation nav)
 {
-	if(nav==NAV_LEFT)
-	{
-		if(edit_pos>0)
-			set_edit_position(edit_pos-1);
-	}
-	else if(nav==NAV_RIGHT)
-	{
-		if(edit_pos<text.size())
-			set_edit_position(edit_pos+1);
-	}
-	else if(nav==NAV_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(nav==NAV_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(nav==NAV_ACCEPT && !signal_enter.empty())
-		signal_enter.emit();
+	if(nav==NAV_LEFT || nav==NAV_RIGHT || ((nav==NAV_DOWN || nav==NAV_UP) && multiline))
+		move_edit_position(nav, false);
 	else
 		return false;
 
@@ -221,10 +329,10 @@ bool Entry::navigate(Navigation nav)
 void Entry::animate(const Time::TimeDelta &)
 {
 	cursor_blink = !cursor_blink;
-	rebuild();
+	mark_rebuild();
 }
 
-void Entry::on_geometry_change()
+void Entry::on_size_change()
 {
 	if(multiline)
 		check_view_range();
@@ -236,11 +344,11 @@ void Entry::on_style_change()
 
 	if(!style)
 	{
-		text_part = 0;
+		text_part = nullptr;
 		return;
 	}
 
-	text_part = style->get_part("text");
+	text_part = style->find_part("text");
 
 	if(multiline)
 		check_view_range();
@@ -248,27 +356,112 @@ void Entry::on_style_change()
 	check_cursor_blink();
 }
 
-void Entry::set_edit_position(unsigned ep)
+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");
+}
+
+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)
 {
-	edit_pos = ep;
-	check_view_range();
-	rebuild();
+	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)
+	if((state&FOCUS) && style && has_blink)
 	{
-		const Part *cursor_part = style->get_part("cursor");
-		if(cursor_part && cursor_part->get_graphic(ACTIVE|FOCUS)!=cursor_part->get_graphic(NORMAL|FOCUS))
-		{
-			set_animation_interval(Time::sec/2);
-			return;
-		}
+		set_animation_interval(Time::sec/2);
+		mark_rebuild();
+	}
+	else
+	{
+		if(has_blink)
+			mark_rebuild();
+		stop_animation();
 	}
-
-	stop_animation();
 }
 
 void Entry::check_view_range()
@@ -276,29 +469,39 @@ 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);
+	visible_rows = text.get_visible_lines(*text_part, geom, nullptr);
 
-	const Sides &margin = text_part->get_margin();
-	visible_rows = max((geom.h-margin.top-margin.bottom)/line_spacing, 1U);
-
-	unsigned row, col;
+	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;
 
-	unsigned scroll = max(text.get_n_lines(), visible_rows)-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)
-		first_row = text.get_n_lines()-visible_rows-static_cast<unsigned>(value);
+	{
+		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();
+	}
 }