X-Git-Url: http://git.tdb.fi/?p=libs%2Fgltk.git;a=blobdiff_plain;f=source%2Fwidget.cpp;h=8b7f1cbd88b351305a83f6dd56b2c9d5e32ac69b;hp=7f153eb5540e4462bfa57645fab2b113cfb06a8b;hb=85e27a9f4678a20dc197d1f29fae3d0370e402d9;hpb=bcdbb414c5f1abe860cad6bb67fd5da7c0122cfd

diff --git a/source/widget.cpp b/source/widget.cpp
index 7f153eb..8b7f1cb 100644
--- a/source/widget.cpp
+++ b/source/widget.cpp
@@ -1,90 +1,277 @@
 #include <msp/gl/matrix.h>
-#include <msp/gl/transform.h>
+#include <msp/strings/format.h>
+#include "container.h"
 #include "resources.h"
+#include "root.h"
 #include "widget.h"
 
-#include <iostream>
 using namespace std;
 
 namespace Msp {
 namespace GLtk {
 
+Widget::Widget():
+	style(0),
+	state(NORMAL),
+	visible(true),
+	focusable(true),
+	parent(0)
+{ }
+
+Widget::~Widget()
+{
+	if(parent)
+	{
+		Container *p = parent;
+		parent = 0;
+		p->remove(*this);
+	}
+}
+
 void Widget::set_position(int x, int y)
 {
-	geom.x=x;
-	geom.y=y;
+	set_geometry(Geometry(x, y, geom.w, geom.h));
 }
 
 void Widget::set_size(unsigned w, unsigned h)
 {
-	geom.w=w;
-	geom.h=h;
+	set_geometry(Geometry(geom.x, geom.y, w, h));
+}
+
+void Widget::autosize()
+{
+	Geometry ageom;
+	autosize(ageom);
+	set_geometry(ageom);
+}
+
+void Widget::autosize(Geometry &ageom) const
+{
+	if(!style)
+		return;
+
+	ageom = Geometry(geom.x, geom.y, 0, 0);
+	const Style::PartSeq &parts = style->get_parts();
+	for(Style::PartSeq::const_iterator i=parts.begin(); i!=parts.end(); ++i)
+	{
+		if(i->get_name().empty())
+		{
+			const Geometry &pgeom = i->get_geometry();
+			const Sides &pmargin = i->get_margin();
+			ageom.w = max(ageom.w, pgeom.w+pmargin.left+pmargin.right);
+			ageom.h = max(ageom.h, pgeom.h+pmargin.top+pmargin.bottom);
+		}
+		else
+			autosize_special(*i, ageom);
+	}
 }
 
 void Widget::set_geometry(const Geometry &g)
 {
-	geom=g;
+	bool size_changed = (g.w!=geom.w || g.h!=geom.h);
+	geom = g;
+	if(size_changed)
+	{
+		// TODO maybe rename this to on_size_change
+		on_geometry_change();
+		rebuild();
+	}
+}
+
+void Widget::map_coords_to_ancestor(int &x, int &y, const Widget &ancestor) const
+{
+	for(const Widget *w=this; w; w=w->get_parent())
+	{
+		if(w==&ancestor)
+			return;
+
+		const Geometry &wgeom = w->get_geometry();
+		x += wgeom.x;
+		y += wgeom.y;
+	}
+
+	throw hierarchy_error("not an ancestor");
+}
+
+void Widget::set_parent(Container *p)
+{
+	if(parent && p)
+		throw hierarchy_error("widget already parented");
+	else if(p==parent)
+		return;
+
+	try
+	{
+		parent = p;
+
+		on_reparent();
+		update_style();
+	}
+	catch(...)
+	{
+		// The container has not yet added the widget as its child
+		parent = 0;
+		throw;
+	}
 }
 
 void Widget::set_style(const string &s)
 {
-	style_name=s;
+	style_name = s;
 	update_style();
 }
 
-void Widget::render() const
+void Widget::update_style()
+{
+	Widget *top;
+	for(top=this; top->parent; top=top->parent) ;
+	Root *root = dynamic_cast<Root *>(top);
+	if(!root)
+		style = 0;
+	else
+	{
+		string sname = get_class();
+		if(!style_name.empty())
+		{
+			sname += '-';
+			sname += style_name;
+		}
+
+		style = &root->get_resources().get<Style>(sname);
+	}
+
+	on_style_change();
+	signal_autosize_changed.emit();
+	rebuild();
+}
+
+void Widget::set_tooltip(const string &t)
+{
+	tooltip = t;
+}
+
+void Widget::set_visible(bool v)
+{
+	if(v==visible)
+		return;
+
+	visible = v;
+
+	signal_visibility_changed.emit(visible);
+}
+
+void Widget::set_focusable(bool f)
+{
+	focusable = f;
+}
+
+void Widget::set_focus()
+{
+	if(!parent)
+		throw hierarchy_error("no parent");
+	if(!visible)
+		throw logic_error("!visible");
+
+	signal_request_focus.emit();
+}
+
+void Widget::set_enabled(bool e)
+{
+	set_state(DISABLED, (e ? NORMAL : DISABLED));
+}
+
+void Widget::set_state(State mask, State bits)
+{
+	State old_state = state;
+	state = (state&~mask)|bits;
+	if(style && style->compare_states(old_state, state))
+		rebuild();
+}
+
+void Widget::rebuild()
 {
 	if(!style)
-		throw InvalidState("Attempt to render a widget without a style");
+		return;
 
-	GL::push_matrix();
-	GL::translate(geom.x, geom.y, 0);
-	for(PartSeq::const_iterator i=style->get_parts().begin(); i!=style->get_parts().end(); ++i)
-		render_part(*i);
-	GL::pop_matrix();
+	part_cache.clear();
+	const Style::PartSeq &parts = style->get_parts();
+	for(Style::PartSeq::const_iterator i=parts.begin(); i!=parts.end(); ++i)
+	{
+		if(i->get_name().empty())
+			i->build(geom, state, part_cache);
+		else
+			rebuild_special(*i);
+	}
 }
 
-Widget::Widget(const Resources &r):
-	res(r),
-	style(0),
-	state(NORMAL)
-{ }
+void Widget::rebuild_special(const Part &part)
+{
+	part_cache.insert_special(part);
+}
 
-void Widget::update_style()
+void Widget::render(GL::Renderer &renderer) const
 {
-	style=&res.get_style(get_class(), style_name);
+	if(!style)
+		throw logic_error(format("Attempt to render a widget with null style (class=\"%s\", style_name=\"%s\")", get_class(), style_name));
+
+	GL::MatrixStack::Push _pushm(renderer.matrix_stack());
+	renderer.matrix_stack() *= GL::Matrix::translation(geom.x, geom.y, 0);
+	const PartCache::PartList &parts = part_cache.get_parts();
+	for(PartCache::PartList::const_iterator i=parts.begin(); i!=parts.end(); ++i)
+	{
+		if(i->mesh && i->texture)
+		{
+			renderer.set_texture(i->texture);
+			i->mesh->draw(renderer);
+		}
+		else if(i->part)
+			render_special(*i->part, renderer);
+	}
 }
 
-void Widget::render_part(const Part &part) const
+void Widget::pointer_enter()
 {
-	render_graphic(part);
+	set_state(HOVER);
 }
 
-void Widget::render_graphic(const Part &part) const
+void Widget::pointer_leave()
 {
-	GL::push_matrix();
-	part.render(geom, state);
-	GL::pop_matrix();
+	clear_state(HOVER);
 }
 
-void Widget::render_text(const Part &part, const string &text) const
+void Widget::focus_in()
 {
-	const GL::Font *const font=style->get_font();
+	set_state(FOCUS);
+}
 
-	const float font_size=font->get_default_size();
-	unsigned text_w=static_cast<unsigned>(font->get_string_width(text)*font_size);
+void Widget::focus_out()
+{
+	clear_state(FOCUS);
+}
 
-	GL::push_matrix();
 
-	part.get_alignment().apply(geom, text_w, static_cast<unsigned>(font->get_ascent()*font_size));
-	GL::scale_uniform(font_size);
+Widget::Loader::Loader(Widget &w):
+	DataFile::ObjectLoader<Widget>(w)
+{
+	add("position", &Loader::position);
+	add("size",     &Loader::size);
+	add("style",    &Loader::style);
+	add("visible",  &Widget::visible);
+}
+
+void Widget::Loader::position(int x, int y)
+{
+	obj.set_position(x, y);
+}
 
-	const Color &color=style->get_font_color();
-	glColor3f(color.r, color.g, color.b);
-	font->draw_string(text);
-	glColor3f(1, 1, 1);
+void Widget::Loader::size(unsigned w, unsigned h)
+{
+	obj.set_size(w, h);
+}
 
-	GL::pop_matrix();
+void Widget::Loader::style(const string &s)
+{
+	obj.set_style(s);
 }
 
 } // namespace GLtk