godot/scene/gui/link_button.cpp

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/*************************************************************************/
/* link_button.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 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 "link_button.h"
void LinkButton::set_text(const String& p_text) {
text=p_text;
update();
minimum_size_changed();
}
String LinkButton::get_text() const {
return text;
}
void LinkButton::set_underline_mode(UnderlineMode p_underline_mode) {
underline_mode=p_underline_mode;
update();
}
LinkButton::UnderlineMode LinkButton::get_underline_mode() const {
return underline_mode;
}
Size2 LinkButton::get_minimum_size() const {
return get_font("font")->get_string_size( text );
}
void LinkButton::_notification(int p_what) {
switch( p_what ) {
case NOTIFICATION_DRAW: {
RID ci = get_canvas_item();
Size2 size=get_size();
Color color;
bool do_underline=false;
//print_line(get_text()+": "+itos(is_flat())+" hover "+itos(get_draw_mode()));
switch( get_draw_mode() ) {
case DRAW_NORMAL: {
color=get_color("font_color");
do_underline=underline_mode==UNDERLINE_MODE_ALWAYS;
} break;
case DRAW_PRESSED: {
if (has_color("font_color_pressed"))
color=get_color("font_color_pressed");
else
color=get_color("font_color");
do_underline=underline_mode!=UNDERLINE_MODE_NEVER;
} break;
case DRAW_HOVER: {
color=get_color("font_color_hover");
do_underline=underline_mode!=UNDERLINE_MODE_NEVER;
} break;
case DRAW_DISABLED: {
color=get_color("font_color_disabled");
do_underline=underline_mode==UNDERLINE_MODE_ALWAYS;
} break;
}
if (has_focus()) {
Ref<StyleBox> style = get_stylebox("focus");
style->draw(ci,Rect2(Point2(),size));
}
Ref<Font> font=get_font("font");
draw_string(font,Vector2(0,font->get_ascent()),text,color);
if (do_underline) {
int underline_spacing = get_constant("underline_spacing");
int width = font->get_string_size(text).width;
int y = font->get_ascent()+underline_spacing;
draw_line(Vector2(0,y),Vector2(width,y),color);
}
} break;
}
}
void LinkButton::_bind_methods() {
ObjectTypeDB::bind_method(_MD("set_text","text"),&LinkButton::set_text);
ObjectTypeDB::bind_method(_MD("get_text"),&LinkButton::get_text);
ObjectTypeDB::bind_method(_MD("set_underline_mode","underline_mode"),&LinkButton::set_underline_mode);
ObjectTypeDB::bind_method(_MD("get_underline_mode"),&LinkButton::get_underline_mode);
BIND_CONSTANT( UNDERLINE_MODE_ALWAYS );
BIND_CONSTANT( UNDERLINE_MODE_ON_HOVER );
BIND_CONSTANT( UNDERLINE_MODE_NEVER );
ADD_PROPERTYNZ(PropertyInfo(Variant::STRING,"text"), _SCS("set_text"), _SCS("get_text"));
ADD_PROPERTYNZ(PropertyInfo(Variant::INT,"underline",PROPERTY_HINT_ENUM,"Always,On Hover,Never"), _SCS("set_underline_mode"), _SCS("get_underline_mode"));
}
LinkButton::LinkButton() {
underline_mode=UNDERLINE_MODE_ALWAYS;
set_enabled_focus_mode(FOCUS_NONE);
set_default_cursor_shape(CURSOR_POINTING_HAND);
}