X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Flist.cpp;h=218b26bd1410b82d7f33fb80c0dd6cbfa3bf86f1;hb=43a75e4e9be56c58be5e224f19016bb14b56a7ef;hp=722e296edf9cae096b19e2c736f6075d439dc686;hpb=f21a56605f3534cb24e5912cd4f4ee28279dcddd;p=libs%2Fgltk.git

diff --git a/source/list.cpp b/source/list.cpp
index 722e296..218b26b 100644
--- a/source/list.cpp
+++ b/source/list.cpp
@@ -1,16 +1,10 @@
-/* $Id$
-
-This file is part of libmspgltk
-Copyright © 2007  Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
 #include <msp/gl/matrix.h>
-#include <msp/gl/transform.h>
+#include <msp/gl/meshbuilder.h>
 #include "graphic.h"
 #include "list.h"
 #include "part.h"
 #include "style.h"
+#include "text.h"
 #include "vslider.h"
 
 using namespace std;
@@ -18,250 +12,295 @@ using namespace std;
 namespace Msp {
 namespace GLtk {
 
-List::List(const Resources &r):
-	Widget(r),
+List::List():
 	sel_index(-1),
 	first(0),
 	n_visible(1),
-	items_part(0),
-	slider(new VSlider(res)),
-	slider_active(false)
+	row_height(1),
+	items_part(0)
 {
-	slider->set_step(1);
-	slider->signal_value_changed.connect(sigc::mem_fun(this, &List::slider_value_changed));
+	add(slider);
+	slider.set_step(1);
+	slider.signal_value_changed.connect(sigc::mem_fun(this, &List::slider_value_changed));
+}
 
-	update_style();
+void List::autosize()
+{
+	autosize_rows(5);
 }
 
-List::~List()
+void List::autosize_rows(unsigned n)
 {
-	delete slider;
+	if(!style)
+		return;
+
+	Widget::autosize();
+
+	if(items_part)
+	{
+		const Sides &margin = items_part->get_margin();
+		const GL::Font &font = style->get_font();
+		float font_size = style->get_font_size();
+
+		unsigned max_w = 0;
+		for(vector<string>::iterator i=items.begin(); i!=items.end(); ++i)
+		{
+			unsigned w = static_cast<unsigned>(font.get_string_width(*i)*font_size);
+			max_w = max(max_w, w);
+		}
+
+		geom.w = max(geom.w, max_w+margin.left+margin.right);
+		geom.h = max(geom.h, n*row_height+margin.top+margin.bottom);
+	}
+
+	if(const Part *slider_part = style->get_part("slider"))
+	{
+		Geometry sgeom = slider_part->get_geometry();
+		if(!sgeom.w || !sgeom.h)
+		{
+			slider.autosize();
+			if(!sgeom.w)
+				sgeom.w = slider.get_geometry().w;
+			if(!sgeom.h)
+				sgeom.h = slider.get_geometry().h;
+		}
+
+		const Sides &margin = slider_part->get_margin();
+		geom.w = max(geom.w, sgeom.w+margin.left+margin.right);
+		geom.h = max(geom.h, sgeom.h+margin.top+margin.bottom);
+
+		reposition_slider();
+	}
+
+	check_view_range();
+	rebuild();
+}
+
+void List::autosize_all()
+{
+	autosize_rows(items.size());
 }
 
 void List::append(const string &v)
 {
 	items.push_back(v);
-	recalculate_parameters();
+	items_changed();
 }
 
 void List::insert(unsigned i, const string &v)
 {
 	if(i>items.size())
-		throw InvalidParameterValue("Index out of range");
+		throw out_of_range("List::insert");
 
 	items.insert(items.begin()+i, v);
-	recalculate_parameters();
+	items_changed();
 }
 
 void List::remove(unsigned i)
 {
 	if(i>items.size())
-		throw InvalidParameterValue("Index out of range");
+		throw out_of_range("List::remove");
 
 	items.erase(items.begin()+i);
 	if(sel_index>static_cast<int>(i))
 		--sel_index;
 	else if(sel_index==static_cast<int>(i))
-		sel_index=-1;
+		sel_index = -1;
 
-	recalculate_parameters();
+	items_changed();
 }
 
 void List::clear()
 {
 	items.clear();
-	sel_index=-1;
+	sel_index = -1;
+	items_changed();
+}
+
+void List::items_changed()
+{
+	check_view_range();
+	signal_autosize_changed.emit();
+	rebuild();
 }
 
 void List::set_selected_index(int i)
 {
 	if(i<0)
-		sel_index=-1;
+		sel_index = -1;
 	else if(i<static_cast<int>(items.size()))
 	{
-		sel_index=i;
+		sel_index = i;
 		signal_item_selected.emit(sel_index, items[sel_index]);
+		rebuild();
 	}
 	else
-		throw InvalidParameterValue("Index out of range");
+		throw out_of_range("List::set_selected_index");
 }
 
 const string &List::get_selected() const
 {
 	if(sel_index<0)
-		throw InvalidState("No selection");
+		throw logic_error("sel_index<0");
 
 	return items[sel_index];
 }
 
-void List::button_press(int x, int y, unsigned btn)
+void List::rebuild_special(const Part &part, CachedPart &cache)
 {
-	if(slider->get_geometry().is_inside(x, y))
-	{
-		const Geometry &sgeom=slider->get_geometry();
-		slider->button_press(x-sgeom.x, y-sgeom.y, btn);
-		slider_active=true;
-	}
-	else if(btn==1)
+	if(part.get_name()=="items")
 	{
-		const GL::Font *const font=style->get_font();
-		const unsigned row_height=static_cast<unsigned>(font->get_default_size());
+		const Sides &margin = part.get_margin();
+		Geometry pgeom = geom;
+		pgeom.h = row_height+margin.top+margin.bottom;
 
-		if(items_part)
-			y+=items_part->get_margin().top;
+		const GL::Font &font = style->get_font();
+		cache.texture = &font.get_texture();
+		cache.clear_mesh();
 
-		unsigned i=(geom.h-1-y)/row_height;
-		if(i<n_visible && first+i<items.size())
+		GL::MeshBuilder bld(*cache.mesh);
+		bld.color(style->get_font_color());
+		bld.matrix() *= GL::Matrix::translation(margin.left, geom.h-pgeom.h-font.get_descent()*style->get_font_size(), 0);
+
+		for(unsigned i=0; (i<n_visible && first+i<items.size()); ++i)
 		{
-			sel_index=first+i;
+			if(i!=0)
+				bld.matrix() *= GL::Matrix::translation(0, -static_cast<int>(row_height), 0);
 
-			signal_item_selected.emit(sel_index, items[sel_index]);
+			GL::MatrixStack::Push _pushm(bld.matrix());
+			bld.matrix() *= GL::Matrix::scaling(style->get_font_size());
+
+			style->get_font().build_string(items[first+i], bld);
 		}
 	}
-}
-
-void List::button_release(int x, int y, unsigned btn)
-{
-	if(slider_active)
+	else if(part.get_name()=="selection")
 	{
-		const Geometry &sgeom=slider->get_geometry();
-		slider->button_release(x-sgeom.x, y-sgeom.y, btn);
-		slider_active=false;
+		if(sel_index>=static_cast<int>(first) && sel_index<static_cast<int>(first+n_visible))
+		{
+			const Sides &margin = part.get_margin();
+
+			Geometry pgeom = geom;
+			pgeom.h = row_height;
+			pgeom.w -= margin.left+margin.right;
+
+			Geometry rgeom = part.get_geometry();
+			rgeom.y += geom.h-margin.top-row_height*(sel_index-first+1);
+			rgeom.x += margin.left;
+			part.get_alignment().apply(rgeom, pgeom);
+
+			cache.texture = part.get_graphic(state)->get_texture();
+			cache.clear_mesh();
+
+			GL::MeshBuilder bld(*cache.mesh);
+			bld.matrix() *= GL::Matrix::translation(rgeom.x, rgeom.y, 0);
+			part.get_graphic(state)->build(rgeom.w, rgeom.h, bld);
+		}
+		else
+			cache.texture = 0;
 	}
 }
 
-void List::pointer_motion(int x, int y)
+void List::render_special(const Part &part, GL::Renderer &renderer) const
 {
-	if(slider_active)
-	{
-		const Geometry &sgeom=slider->get_geometry();
-		slider->pointer_motion(x-sgeom.x, y-sgeom.y);
-	}
+	if(part.get_name()=="slider")
+		slider.render(renderer);
 }
 
-void List::render_special(const Part &part) const
+void List::button_press(int x, int y, unsigned btn)
 {
-	if(part.get_name()=="items")
+	Container::button_press(x, y, btn);
+	if(!click_focus && btn==1)
 	{
-		const GL::Font *const font=style->get_font();
-		const float font_size=font->get_default_size();
-		const unsigned row_height=static_cast<unsigned>(font_size);
-		const Sides &margin=part.get_margin();
-
-		Geometry pgeom=geom;
-		pgeom.h=row_height;
-		pgeom.w-=margin.left+margin.right;
-
-		for(unsigned i=0; (i<n_visible && first+i<items.size()); ++i)
-		{
-			Geometry rgeom;
-			rgeom.w=static_cast<unsigned>(font->get_string_width(items[first+i])*font_size);
-			rgeom.h=static_cast<unsigned>((font->get_ascent()-font->get_descent())*font_size);
-			rgeom.y=geom.h-margin.top-(i+1)*row_height-static_cast<int>(font->get_descent()*font_size);
-			part.get_alignment().apply(rgeom, pgeom);
+		if(items_part)
+			y += items_part->get_margin().top;
 
-			GL::push_matrix();
-			GL::translate(rgeom.x, rgeom.y, 0);
-			GL::scale_uniform(font_size);
-			font->draw_string(items[first+i]);
-			GL::pop_matrix();
-		}
-	}
-	else if(part.get_name()=="selection")
-	{
-		if(sel_index>=static_cast<int>(first) && sel_index<static_cast<int>(first+n_visible))
+		unsigned i = (geom.h-1-y)/row_height;
+		if(i<n_visible && first+i<items.size())
 		{
-			const GL::Font *const font=style->get_font();
-			const float font_size=font->get_default_size();
-			const unsigned row_height=static_cast<unsigned>(font_size);
-			const Sides &margin=part.get_margin();
-
-			Geometry pgeom=geom;
-			pgeom.h=row_height;
-			pgeom.w-=margin.left+margin.right;
-
-			Geometry rgeom=part.get_geometry();
-			rgeom.y+=geom.h-margin.top-row_height*(sel_index-first+1);
-			rgeom.x+=margin.left;
-			part.get_alignment().apply(rgeom, pgeom);
+			sel_index = first+i;
 
-			GL::push_matrix();
-			GL::translate(rgeom.x, rgeom.y, 0);
-			part.get_graphic(state)->render(rgeom.w, rgeom.h);
-			GL::pop_matrix();
+			signal_item_selected.emit(sel_index, items[sel_index]);
+			rebuild();
 		}
 	}
-	else if(part.get_name()=="slider")
-		slider->render();
 }
 
 void List::on_geometry_change()
 {
 	reposition_slider();
 
-	recalculate_parameters();
+	check_view_range();
 }
 
 void List::on_style_change()
 {
+	if(!style)
+	{
+		items_part = 0;
+		return;
+	}
+
 	reposition_slider();
 
-	items_part=0;
-	for(list<Part>::const_iterator i=style->get_parts().begin(); i!=style->get_parts().end(); ++i)
-		if(i->get_name()=="items")
-			items_part=&*i;
+	items_part = style->get_part("items");
 
-	recalculate_parameters();
+	const GL::Font &font = style->get_font();
+	row_height = static_cast<unsigned>((font.get_ascent()-font.get_descent())*style->get_font_size());
+
+	check_view_range();
 }
 
 void List::reposition_slider()
 {
-	for(list<Part>::const_iterator i=style->get_parts().begin(); i!=style->get_parts().end(); ++i)
-		if(i->get_name()=="slider")
-		{
-			Geometry sgeom=i->get_geometry();
-			i->get_alignment().apply(sgeom, geom, i->get_margin());
-			slider->set_geometry(sgeom);
-		}
+	if(!style)
+		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 List::recalculate_parameters()
+void List::check_view_range()
 {
-	const GL::Font *font=style->get_font();
-	unsigned row_height=static_cast<unsigned>(font->get_default_size());
-
-	unsigned h=geom.h;
+	unsigned h = geom.h;
 	if(items_part)
 	{
-		const Sides &margin=items_part->get_margin();
-		h-=margin.top+margin.bottom;
+		const Sides &margin = items_part->get_margin();
+		h -= margin.top+margin.bottom;
 	}
 
-	n_visible=h/row_height;
+	n_visible = h/row_height;
 
 	if(first+n_visible>items.size())
 	{
 		if(items.size()>n_visible)
-			first=items.size()-n_visible;
+			first = items.size()-n_visible;
 		else
-			first=0;
+			first = 0;
 	}
 
 	if(items.size()>n_visible)
 	{
-		slider->set_range(0, items.size()-n_visible);
-		slider->set_value(items.size()-n_visible-first);
+		slider.set_range(0, items.size()-n_visible);
+		slider.set_value(items.size()-n_visible-first);
 	}
 	else
 	{
-		slider->set_range(0, 0);
-		slider->set_value(0);
+		slider.set_range(0, 0);
+		slider.set_value(0);
 	}
 }
 
 void List::slider_value_changed(double value)
 {
-	first=items.size()-n_visible-static_cast<unsigned>(value);
+	if(items.size()>n_visible)
+	{
+		first = items.size()-n_visible-static_cast<unsigned>(value);
+		rebuild();
+	}
 }
 
 
@@ -273,7 +312,7 @@ List::Loader::Loader(List &l):
 
 void List::Loader::item(const string &v)
 {
-	static_cast<List &>(wdg).append(v);
+	dynamic_cast<List &>(obj).append(v);
 }
 
 } // namespace GLtk