X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fentry.cpp;h=3a91f50dad4e4178cf308aa88c1a40c603559a68;hb=7286d604956ddffcbfa2df6567de866f3d5df3a2;hp=af6fcc6d0fd31ed5cfdbdc03f4fda57e9db6c55c;hpb=608412d18b9c42871277911c11ae885a53d83990;p=libs%2Fgltk.git

diff --git a/source/entry.cpp b/source/entry.cpp
index af6fcc6..3a91f50 100644
--- a/source/entry.cpp
+++ b/source/entry.cpp
@@ -56,8 +56,60 @@ 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();
+
+	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();
@@ -65,6 +117,29 @@ void Entry::set_text(const string &t)
 	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)
 {
 	edit_width = w;
@@ -121,10 +196,8 @@ void Entry::rebuild_special(const Part &part)
 		if(!text_part || !graphic || !graphic->get_texture())
 			return;
 
-		unsigned start = selection_pos;
-		unsigned end = edit_pos;
-		if(start>end)
-			swap(start, end);
+		unsigned start, end;
+		get_selection(start, end);
 
 		unsigned row, col;
 		text.offset_to_coords(start, row, col);
@@ -194,27 +267,25 @@ bool Entry::key_press(unsigned key, unsigned mod)
 	if(key==Input::KEY_BACKSPACE)
 	{
 		if(selection_active)
-			erase_selection();
+			erase_selection(true);
 		else if(edit_pos>0)
 		{
-			text.erase(--edit_pos, 1);
-			check_view_range();
-			rebuild();
+			unsigned 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();
+			erase_selection(true);
 		else
-			text.erase(edit_pos, 1);
+		{
+			unsigned end_pos = text.move_offset(edit_pos, 1);
+			erase(edit_pos, end_pos-edit_pos);
+		}
 	}
 	else if(key==Input::KEY_ENTER && multiline)
-	{
-		text.insert(edit_pos++, "\n");
-		check_view_range();
-		rebuild();
-	}
+		insert(edit_pos, "\n");
 	else if(key==Input::KEY_END)
 	{
 		unsigned row, col;
@@ -227,6 +298,18 @@ bool Entry::key_press(unsigned key, unsigned mod)
 		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)
+	{
+		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_PGDN)
+	{
+		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)
@@ -246,10 +329,8 @@ bool Entry::character(wchar_t ch)
 	if(got_key_press && ch>=' ' && ch!=0x7F)
 	{
 		if(selection_active)
-			erase_selection();
-		text.insert(edit_pos, StringCodec::encode<StringCodec::Utf8>(StringCodec::ustring(1, ch)));
-		++edit_pos;
-		rebuild();
+			erase_selection(false);
+		insert(edit_pos, StringCodec::encode<StringCodec::Utf8>(StringCodec::ustring(1, ch)));
 		return true;
 	}
 
@@ -288,7 +369,7 @@ void Entry::animate(const Time::TimeDelta &)
 	rebuild();
 }
 
-void Entry::on_geometry_change()
+void Entry::on_size_change()
 {
 	if(multiline)
 		check_view_range();
@@ -315,15 +396,9 @@ void Entry::on_style_change()
 void Entry::move_edit_position(Navigation nav, bool select)
 {
 	if(nav==NAV_LEFT)
-	{
-		if(edit_pos>0)
-			set_edit_position(edit_pos-1, select);
-	}
+		set_edit_position(text.move_offset(edit_pos, -1), select);
 	else if(nav==NAV_RIGHT)
-	{
-		if(edit_pos<text.size())
-			set_edit_position(edit_pos+1, select);
-	}
+		set_edit_position(text.move_offset(edit_pos, 1), select);
 	else if(nav==NAV_DOWN)
 	{
 		unsigned row, col;
@@ -336,6 +411,8 @@ void Entry::move_edit_position(Navigation nav, bool select)
 		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)
@@ -344,22 +421,26 @@ void Entry::set_edit_position(unsigned ep, bool select)
 		selection_pos = edit_pos;
 	selection_active = select;
 
-	edit_pos = ep;
-	check_view_range();
+	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();
 	rebuild();
 }
 
-void Entry::erase_selection()
+void Entry::erase_selection(bool emit_change)
 {
-	if(!selection_active)
+	unsigned start, end;
+	if(!get_selection(start, end))
 		return;
 
-	unsigned start = selection_pos;
-	unsigned end = edit_pos;
-	if(start>end)
-		swap(start, end);
-
 	text.erase(start, end-start);
+	if(emit_change)
+		signal_text_changed.emit(text.get());
 	set_edit_position(start, false);
 }
 
@@ -384,21 +465,24 @@ 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);
 }
@@ -406,7 +490,12 @@ 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);
+	}
 }