#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::set_style(const string &s)
+void Widget::map_coords_to_ancestor(int &x, int &y, const Widget &ancestor) const
{
- style_name=s;
- update_style();
+ 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::render() const
+void Widget::set_parent(Container *p)
{
- if(!style)
- throw InvalidState("Attempt to render a widget without a style");
+ if(parent && p)
+ throw hierarchy_error("widget already parented");
+ else if(p==parent)
+ return;
+
+ try
+ {
+ parent = p;
- 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();
+ on_reparent();
+ update_style();
+ }
+ catch(...)
+ {
+ // The container has not yet added the widget as its child
+ parent = 0;
+ throw;
+ }
}
-Widget::Widget(const Resources &r):
- res(r),
- style(0),
- state(NORMAL)
-{ }
+void Widget::set_style(const string &s)
+{
+ style_name = s;
+ update_style();
+}
void Widget::update_style()
{
- string sname=get_class();
- if(!style_name.empty())
+ Widget *top;
+ for(top=this; top->parent; top=top->parent) ;
+ Root *root = dynamic_cast<Root *>(top);
+ if(!root)
+ style = 0;
+ else
{
- sname+='-';
- sname+=style_name;
+ string sname = get_class();
+ if(!style_name.empty())
+ {
+ sname += '-';
+ sname += style_name;
+ }
+
+ style = &root->get_resources().get<Style>(sname);
}
- style=&res.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::render_part(const Part &part) const
+void Widget::set_state(State mask, State bits)
{
- render_graphic(part);
+ State old_state = state;
+ state = (state&~mask)|bits;
+ if(style && style->compare_states(old_state, state))
+ rebuild();
}
-void Widget::render_graphic(const Part &part) const
+void Widget::rebuild()
{
- GL::push_matrix();
- part.render(geom, state);
- GL::pop_matrix();
+ if(!style)
+ return;
+
+ 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);
+ }
}
-void Widget::render_text(const Part &part, const string &text) const
+void Widget::rebuild_special(const Part &part)
{
- const GL::Font *const font=style->get_font();
+ part_cache.insert_special(part);
+}
- const float font_size=font->get_default_size();
- unsigned text_w=static_cast<unsigned>(font->get_string_width(text)*font_size);
+void Widget::render(GL::Renderer &renderer) const
+{
+ if(!style)
+ throw logic_error(format("Attempt to render a widget with null style (class=\"%s\", style_name=\"%s\")", get_class(), style_name));
- GL::push_matrix();
+ 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);
+ }
+}
- part.get_alignment().apply(geom, text_w, static_cast<unsigned>(font->get_ascent()*font_size));
- GL::scale_uniform(font_size);
+void Widget::pointer_enter()
+{
+ set_state(HOVER);
+}
- const GL::Color &color=style->get_font_color();
- glColor3f(color.r, color.g, color.b);
- font->draw_string(text);
- glColor3f(1, 1, 1);
+void Widget::pointer_leave()
+{
+ clear_state(HOVER);
+}
- GL::pop_matrix();
+void Widget::focus_in()
+{
+ set_state(FOCUS);
+}
+
+void Widget::focus_out()
+{
+ clear_state(FOCUS);
}
Widget::Loader::Loader(Widget &w):
- wdg(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)
{
- wdg.set_position(x, y);
+ obj.set_position(x, y);
}
void Widget::Loader::size(unsigned w, unsigned h)
{
- wdg.set_size(w, h);
+ obj.set_size(w, h);
}
void Widget::Loader::style(const string &s)
{
- wdg.set_style(s);
+ obj.set_style(s);
}
} // namespace GLtk
projects / libs / gltk.git / blobdiff