user interface library

1 files changed, 190 insertions, 0 deletions

diff --git a/src/ui/widget.cc b/src/ui/widget.cc
new file mode 100644
index 0000000..94260cb
--- /dev/null
+++ b/src/ui/widget.cc
@@ -0,0 +1,190 @@
+/*
+   ui/widget.cc
+   This file is part of the Osirion project and is distributed under
+   the terms of the GNU General Public License version 2
+*/
+
+#include "auxiliary/functions.h"
+#include "render/primitives.h"
+#include "sys/sys.h"
+#include "ui/widget.h"
+
+namespace ui {
+
+Widget::Widget(Widget *parent) {
+	widget_parent = parent;
+	widget_visible = true;
+	widget_border = true;
+	widget_background = false;
+	widget_label.assign("widget");
+
+	if (widget_parent) {
+		widget_palette = parent->widget_palette;
+		parent->add_child(this);
+	} else {
+		widget_palette = 0;
+	}
+}
+
+Widget::~Widget()
+{
+	if (widget_parent) {
+		widget_parent->remove_child(this);
+	}
+
+	for (Children::iterator it = widget_children.begin(); it != widget_children.end(); it++) {
+		(*it)->widget_parent = 0;
+		delete (*it);
+	}
+
+	widget_children.clear();
+}
+
+size_t Widget::list(size_t indent)
+{
+	size_t n = 1;
+	std::string marker("");
+	con_print << aux::pad_left(marker, indent*2) << label() << " " << (size_t)(this) << std::endl;
+
+	for (Children::iterator it = widget_children.begin(); it != widget_children.end(); it++) {
+		n += (*it)->list(indent+1);
+	}
+	return n;
+}
+
+void Widget::show()
+{
+	widget_visible = true;
+}
+
+void Widget::hide()
+{
+	widget_visible = false;
+}
+
+void Widget::set_border(bool border)
+{
+	widget_border = border;
+}
+
+
+void Widget::set_background(bool background)
+{
+	widget_background = background;
+}
+
+void Widget::set_label(std::string const & label)
+{
+	set_label(label.c_str());
+}
+
+void Widget::set_label(char const *label)
+{
+	widget_label.assign(label);
+	aux::to_label(widget_label);
+}
+
+void Widget::set_palette(Palette *palette)
+{
+	widget_palette = palette;
+}
+
+void Widget::set_location(float const x, float const y) {
+	widget_location.assign(x, y);
+}
+
+void Widget::set_size(float const w, float const h)
+{
+	widget_size.assign(w, h);
+}
+
+void Widget::set_width(float const w)
+{
+	widget_size.x = w;
+}
+void Widget::set_height(float const h)
+{
+	widget_size.y = h;
+}
+
+Widget::Children::iterator Widget::find_child(Widget *child)
+{
+	Children::iterator it;
+	for (it = widget_children.begin(); it != widget_children.end(); it++) {
+		if ((*it) == child)
+			return it;
+	}
+
+	return it;
+}
+
+void Widget::add_child(Widget *child)
+{
+	Children::iterator it = find_child(child);
+	if (it == widget_children.end()) {
+		widget_children.push_back(child);
+	}
+}
+	
+void Widget::remove_child(Widget *child)
+{
+
+	Children::iterator it = find_child(child);
+	if (it != widget_children.end()) {
+		widget_children.erase(it);
+	}
+}
+
+void Widget::resize_event()
+{
+	resize();
+	for (Children::iterator it = widget_children.begin(); it != widget_children.end(); it++) {
+		(*it)->resize_event();
+	}
+}
+
+void Widget::resize()
+{
+}
+
+void Widget::draw_event()
+{
+	if (!widget_visible)
+		return;
+
+	draw();
+	for (Children::iterator it = widget_children.begin(); it != widget_children.end(); it++) {
+		if ((*it)->visible())
+			(*it)->draw_event();
+	}
+}
+
+void Widget::draw()
+{
+	draw_background();
+	draw_border();
+}
+
+void Widget::draw_background()
+{
+	if (!widget_background)
+		return;
+
+	if (palette())
+		render::gl::color(palette()->background());
+	math::Vector2f v(to_global(location()));
+	render::primitives::rectangle(v, size());
+}
+
+void Widget::draw_border()
+{
+	if (!widget_border)
+		return;
+
+	if (palette())
+		render::gl::color(palette()->border());
+	math::Vector2f v(to_global(location()));
+	render::primitives::border(v, size());
+}
+
+}