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godot/scene/gui/base_button.cpp

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/*************************************************************************/
/* base_button.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "base_button.h"
#include "os/keyboard.h"
#include "print_string.h"
#include "button_group.h"
void BaseButton::_input_event(InputEvent p_event) {
if (status.disabled) // no interaction with disabled button
return;
switch(p_event.type) {
case InputEvent::MOUSE_BUTTON: {
const InputEventMouseButton &b=p_event.mouse_button;
if ( status.disabled || b.button_index!=1 )
return;
if (status.pressing_button)
break;
if (status.click_on_press) {
if (b.pressed) {
if (!toggle_mode) { //mouse press attempt
status.press_attempt=true;
status.pressing_inside=true;
pressed();
emit_signal("pressed");
} else {
status.pressed=!status.pressed;
pressed();
emit_signal("pressed");
toggled(status.pressed);
emit_signal("toggled",status.pressed);
}
} else {
if (status.press_attempt &&status.pressing_inside) {
pressed();
emit_signal("pressed");
}
status.press_attempt=false;
}
update();
break;
}
if (b.pressed) {
status.press_attempt=true;
status.pressing_inside=true;
} else {
if (status.press_attempt &&status.pressing_inside) {
if (!toggle_mode) { //mouse press attempt
pressed();
emit_signal("pressed");
} else {
status.pressed=!status.pressed;
pressed();
emit_signal("pressed");
toggled(status.pressed);
emit_signal("toggled",status.pressed);
}
}
status.press_attempt=false;
}
update();
} break;
case InputEvent::MOUSE_MOTION: {
if (status.press_attempt && status.pressing_button==0) {
bool last_press_inside=status.pressing_inside;
status.pressing_inside=has_point(Point2(p_event.mouse_motion.x,p_event.mouse_motion.y));
if (last_press_inside!=status.pressing_inside)
update();
}
} break;
case InputEvent::JOYSTICK_BUTTON:
case InputEvent::KEY: {
if (p_event.is_echo()) {
break;
}
if (status.disabled) {
break;
}
if (status.press_attempt && status.pressing_button==0) {
break;
}
if (p_event.is_action("ui_accept")) {
if (p_event.is_pressed()) {
status.pressing_button++;
status.press_attempt=true;
status.pressing_inside=true;
} else if (status.press_attempt) {
if (status.pressing_button)
status.pressing_button--;
if (status.pressing_button)
break;
status.press_attempt=false;
status.pressing_inside=false;
if (!toggle_mode) { //mouse press attempt
pressed();
emit_signal("pressed");
} else {
status.pressed=!status.pressed;
pressed();
emit_signal("pressed");
toggled(status.pressed);
emit_signal("toggled",status.pressed);
}
}
accept_event();
update();
}
}
}
}
void BaseButton::_notification(int p_what) {
if (p_what==NOTIFICATION_MOUSE_ENTER) {
status.hovering=true;
update();
}
if (p_what==NOTIFICATION_MOUSE_EXIT) {
status.hovering=false;
update();
}
if (p_what==NOTIFICATION_FOCUS_EXIT) {
if (status.pressing_button && status.press_attempt) {
status.press_attempt=false;
status.pressing_button=0;
}
}
if (p_what==NOTIFICATION_ENTER_SCENE) {
CanvasItem *ci=this;
while(ci) {
ButtonGroup *bg = ci->cast_to<ButtonGroup>();
if (bg) {
group=bg;
group->_add_button(this);
}
ci=ci->get_parent_item();
}
}
if (p_what==NOTIFICATION_EXIT_SCENE) {
if (group)
group->_remove_button(this);
}
}
void BaseButton::pressed() {
if (get_script_instance())
get_script_instance()->call("pressed");
}
void BaseButton::toggled(bool p_pressed) {
if (get_script_instance())
get_script_instance()->call("toggled",p_pressed);
}
void BaseButton::set_disabled(bool p_disabled) {
status.disabled = p_disabled;
update();
_change_notify("disabled");
if (p_disabled)
set_focus_mode(FOCUS_NONE);
else
set_focus_mode(FOCUS_ALL);
};
bool BaseButton::is_disabled() const {
return status.disabled;
};
void BaseButton::set_pressed(bool p_pressed) {
if (!toggle_mode)
return;
if (status.pressed==p_pressed)
return;
_change_notify("pressed");
status.pressed=p_pressed;
update();
}
bool BaseButton::is_pressing() const{
return status.press_attempt;
}
bool BaseButton::is_pressed() const {
return toggle_mode?status.pressed:status.press_attempt;
}
bool BaseButton::is_hovered() const {
return status.hovering;
}
BaseButton::DrawMode BaseButton::get_draw_mode() const {
if (status.disabled) {
return DRAW_DISABLED;
};
//print_line("press attempt: "+itos(status.press_attempt)+" hover: "+itos(status.hovering)+" pressed: "+itos(status.pressed));
if (status.press_attempt==false && status.hovering && !status.pressed) {
return DRAW_HOVER;
} else {
/* determine if pressed or not */
bool pressing;
if (status.press_attempt) {
pressing=status.pressing_inside;
if (status.pressed)
pressing=!pressing;
} else {
pressing=status.pressed;
}
if (pressing)
return DRAW_PRESSED;
else
return DRAW_NORMAL;
}
return DRAW_NORMAL;
}
void BaseButton::set_toggle_mode(bool p_on) {
toggle_mode=p_on;
}
bool BaseButton::is_toggle_mode() const {
return toggle_mode;
}
void BaseButton::set_click_on_press(bool p_click_on_press) {
status.click_on_press=p_click_on_press;
}
bool BaseButton::get_click_on_press() const {
return status.click_on_press;
}
void BaseButton::_bind_methods() {
ObjectTypeDB::bind_method(_MD("_input_event"),&BaseButton::_input_event);
ObjectTypeDB::bind_method(_MD("set_pressed","pressed"),&BaseButton::set_pressed);
ObjectTypeDB::bind_method(_MD("is_pressed"),&BaseButton::is_pressed);
ObjectTypeDB::bind_method(_MD("is_hovered"),&BaseButton::is_hovered);
ObjectTypeDB::bind_method(_MD("set_toggle_mode","enabled"),&BaseButton::set_toggle_mode);
ObjectTypeDB::bind_method(_MD("is_toggle_mode"),&BaseButton::is_toggle_mode);
ObjectTypeDB::bind_method(_MD("set_disabled","disabled"),&BaseButton::set_disabled);
ObjectTypeDB::bind_method(_MD("is_disabled"),&BaseButton::is_disabled);
ObjectTypeDB::bind_method(_MD("set_click_on_press","enable"),&BaseButton::set_click_on_press);
ObjectTypeDB::bind_method(_MD("get_click_on_press"),&BaseButton::get_click_on_press);
ObjectTypeDB::bind_method(_MD("get_draw_mode"),&BaseButton::get_draw_mode);
ADD_SIGNAL( MethodInfo("pressed" ) );
ADD_SIGNAL( MethodInfo("toggled", PropertyInfo( Variant::BOOL,"pressed") ) );
ADD_PROPERTY( PropertyInfo( Variant::BOOL, "disabled"), _SCS("set_disabled"), _SCS("is_disabled"));
ADD_PROPERTY( PropertyInfo( Variant::BOOL, "toggle_mode"), _SCS("set_toggle_mode"), _SCS("is_toggle_mode"));
ADD_PROPERTY( PropertyInfo( Variant::BOOL, "click_on_press"), _SCS("set_click_on_press"), _SCS("get_click_on_press"));
BIND_CONSTANT( DRAW_NORMAL );
BIND_CONSTANT( DRAW_PRESSED );
BIND_CONSTANT( DRAW_HOVER );
BIND_CONSTANT( DRAW_DISABLED );
}
BaseButton::BaseButton() {
toggle_mode=false;
status.pressed=false;
status.press_attempt=false;
status.hovering=false;
status.pressing_inside=false;
status.disabled = false;
status.click_on_press=false;
status.pressing_button=0;
set_focus_mode( FOCUS_ALL );
group=NULL;
}
BaseButton::~BaseButton()
{
}
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