widget Class Reference

#include <widget.hpp>

Inheritance diagram for widget:

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Collaboration diagram for widget:

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List of all members.

Detailed Description

Definition at line 53 of file widget.hpp.


Event callbacks
typedef bool(*	event_handler )(widget *this_widget, const SDL_Event &)
event_handler &	get_event_handler ()
	The event handler pointer is provided to override the default event handler of a particular widget object without needing to go to the trouble of creating a whole new derived class.
Public Types
enum	widget_flags { NO_FLAGS = 0, WIDGET_INVISIBLE = (1 << 0), WIDGET_INACTIVE = (1 << 1), WIDGET_CAN_FOCUS = (1 << 2) }
Public Member Functions
void	add_child (widget *)
virtual void	draw ()
virtual bool	handle_event (const SDL_Event &)
void	remove_child (widget *)
	widget (widget *parent, const int x, const int y, const int w, const int h, const platform::color &foreground, const platform::color &background)
virtual	~widget ()
Utilities
bool	button_down_here (int button)
	Determines whether or not the latest mouse-down was in this widget.
void	draw_box (int x, int y, int w, int h)
	Draws a box (in local coordinates).
void	draw_line (int x0, int y0, int x1, int y1)
	Draws a line (in local coordinates).
void	get_abs (int &x, int &y)
	Transforms the given local coordinates to absolute window coordinates.
void	get_local (int &x, int &y)
	Transforms the given absolute window coordinates into local widget coordinates.
Accessors
platform::color &	get_background ()
data::simple_stack< widget * > &	get_children ()
gsgl::flags_t &	get_flags ()
platform::color &	get_foreground ()
int &	get_h ()
widget *&	get_next_tab ()
widget *	get_parent ()
widget *&	get_prev_tab ()
platform::texture *&	get_texture ()
int &	get_w ()
int &	get_x ()
int &	get_y ()
void	set_flags (const gsgl::flags_t f, bool flag_on)
Private Attributes
platform::color	background
data::simple_stack< widget * >	children
gsgl::flags_t	flags
platform::color	foreground
int	h
event_handler	handler
widget *	next_tab
widget *	parent
widget *	prev_tab
platform::texture *	tex
int	w
int	x
int	y

Member Typedef Documentation

typedef bool(* event_handler)(widget *this_widget, const SDL_Event &)

Member Enumeration Documentation

enum widget_flags

Enumerator:

NO_FLAGS
WIDGET_INVISIBLE	The widget is invisible but still active.
WIDGET_INACTIVE	The widget is neither visible nor active.
WIDGET_CAN_FOCUS	The widget is capable of handling keyboard events.

Definition at line 66 of file widget.hpp.

Constructor & Destructor Documentation

widget	(	widget *	parent,
		const int	x,
		const int	y,
		const int	w,
		const int	h,
		const platform::color &	foreground,
		const platform::color &	background
	)

Definition at line 49 of file widget.cpp.

References widget::add_child().

~widget ( ) [virtual]

Definition at line 57 of file widget.cpp.

References widget::children.

Member Function Documentation

void add_child ( widget * child )

Definition at line 73 of file widget.cpp.

References widget::children, and widget::parent.

Referenced by tabbox::add_tab(), and widget::widget().

bool button_down_here ( int button )

Determines whether or not the latest mouse-down was in this widget.

Definition at line 156 of file widget.cpp.

References widget::get_h(), widget::get_local(), widget::get_w(), and singleton::global_instance().

Referenced by treebox_node::handle_event(), and button::handle_event().

void draw ( ) [virtual]

Reimplemented in button, scrollbar, tabbox, textbox, treebox_plus, treebox_node, treebox, datetime_box, main_window, settings_tab, and simulation_tab.

Definition at line 94 of file widget.cpp.

References widget::background, texture::bind(), display::draw_rectangle(), widget::h, color::set(), widget::tex, and widget::w.

Referenced by textbox::draw(), tabbox::draw(), scrollbar::draw(), and application::draw_ui().

void draw_box	(	int	x,
		int	y,
		int	w,
		int	h
	)

Draws a box (in local coordinates).

Definition at line 179 of file widget.cpp.

References display::draw_rectangle(), and widget::get_abs().

void draw_line	(	int	x0,
		int	y0,
		int	x1,
		int	y1
	)

Draws a line (in local coordinates).

Definition at line 167 of file widget.cpp.

References widget::get_abs().

void get_abs	(	int &	x,
		int &	y
	)

Transforms the given local coordinates to absolute window coordinates.

Definition at line 124 of file widget.cpp.

References widget::parent, and widget::w.

Referenced by widget::draw_box(), and widget::draw_line().

platform::color& get_background ( ) [inline]

Definition at line 96 of file widget.hpp.

Referenced by tabbox::add_tab(), and button::draw().

data::simple_stack<widget *>& get_children ( ) [inline]

Definition at line 88 of file widget.hpp.

Referenced by application::draw_ui(), treebox_plus::handle_event(), and application::handle_ui_event().

event_handler& get_event_handler ( ) [inline]

The event handler pointer is provided to override the default event handler of a particular widget object without needing to go to the trouble of creating a whole new derived class.

If the event handler is non-null, it will be called instead of handle_event(); if it returns false, then handle_event() will be called as well.

Definition at line 114 of file widget.hpp.

Referenced by application::handle_ui_event().

gsgl::flags_t& get_flags ( ) [inline]

Definition at line 81 of file widget.hpp.

Referenced by textbox::draw(), application::draw_ui(), and application::handle_ui_event().

platform::color& get_foreground ( ) [inline]

Definition at line 95 of file widget.hpp.

Referenced by tabbox::add_tab(), treebox_node::draw(), treebox_plus::draw(), tabbox::draw(), scrollbar::draw(), and button::draw().

int& get_h ( ) [inline]

Definition at line 93 of file widget.hpp.

Referenced by tabbox::add_tab(), widget::button_down_here(), treebox::draw(), treebox_node::draw(), treebox_plus::draw(), tabbox::draw(), simulation_tab::draw(), button::draw(), and application::handle_ui_event().