virtualx-engine/scene/gui/button_array.cpp
Zher Huei Lee a8502ae6f6 Fixes for ButtonArray
Fixed hover sometimes not resetting when mouse leaves widget.
Fixed text position not taking into account stylebox's content margins.

(cherry picked from commit f5830e0973)
2016-10-17 20:48:25 +02:00

517 lines
14 KiB
C++

/*************************************************************************/
/* button_array.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2016 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 "button_array.h"
bool ButtonArray::_set(const StringName& p_name, const Variant& p_value) {
String n=String(p_name);
if (n.begins_with("button/")) {
String what = n.get_slicec('/',1);
if (what=="count") {
int new_size=p_value;
if (new_size>0 && buttons.size()==0) {
selected=0;
}
if (new_size < buttons.size()) {
if (selected>=new_size)
selected=new_size-1;
}
buttons.resize(new_size);
_change_notify();
minimum_size_changed();
} else if (what=="align") {
set_align(Align(p_value.operator int()));
} else if (what=="selected") {
set_selected(p_value);
} else if (what == "min_button_size") {
min_button_size = p_value;
} else {
int idx=what.to_int();
ERR_FAIL_INDEX_V(idx,buttons.size(),false);
String f = n.get_slicec('/',2);
if (f=="text")
buttons[idx].text=p_value;
else if (f=="icon")
buttons[idx].icon=p_value;
else
return false;
}
update();
return true;
}
return false;
}
bool ButtonArray::_get(const StringName& p_name,Variant &r_ret) const {
String n=String(p_name);
if (n.begins_with("button/")) {
String what = n.get_slicec('/',1);
if (what=="count") {
r_ret=buttons.size();
} else if (what=="align") {
r_ret=get_align();
} else if (what=="selected") {
r_ret=get_selected();
} else if (what == "min_button_size"){
r_ret = min_button_size;
} else {
int idx=what.to_int();
ERR_FAIL_INDEX_V(idx,buttons.size(),false);
String f = n.get_slicec('/',2);
if (f=="text")
r_ret=buttons[idx].text;
else if (f=="icon")
r_ret=buttons[idx].icon;
else
return false;
}
return true;
}
return false;
}
void ButtonArray::_get_property_list( List<PropertyInfo> *p_list) const {
p_list->push_back( PropertyInfo( Variant::INT, "button/count",PROPERTY_HINT_RANGE,"0,512,1"));
p_list->push_back( PropertyInfo( Variant::INT, "button/min_button_size",PROPERTY_HINT_RANGE,"0,1024,1"));
p_list->push_back( PropertyInfo( Variant::INT, "button/align",PROPERTY_HINT_ENUM,"Begin,Center,End,Fill,Expand"));
for(int i=0;i<buttons.size();i++) {
String base="button/"+itos(i)+"/";
p_list->push_back( PropertyInfo( Variant::STRING, base+"text"));
p_list->push_back( PropertyInfo( Variant::OBJECT, base+"icon",PROPERTY_HINT_RESOURCE_TYPE,"Texture"));
}
if (buttons.size()>0) {
p_list->push_back( PropertyInfo( Variant::INT, "button/selected",PROPERTY_HINT_RANGE,"0,"+itos(buttons.size()-1)+",1"));
}
}
Size2 ButtonArray::get_minimum_size() const {
Ref<StyleBox> style_normal = get_stylebox("normal");
Ref<StyleBox> style_selected = get_stylebox("selected");
Ref<Font> font_normal = get_font("font");
Ref<Font> font_selected = get_font("font_selected");
int icon_sep = get_constant("icon_separator");
int button_sep = get_constant("button_separator");
Size2 minsize;
for(int i=0;i<buttons.size();i++) {
Ref<StyleBox> sb = i==selected ? style_selected : style_normal;
Ref<Font> f = i==selected ? font_selected : font_normal;
Size2 ms;
ms = f->get_string_size(buttons[i].text);
if (buttons[i].icon.is_valid()) {
Size2 bs = buttons[i].icon->get_size();
ms.height = MAX(ms.height,bs.height);
ms.width+=bs.width+icon_sep;
}
ms+=sb->get_minimum_size();
buttons[i]._ms_cache=ms[orientation];
minsize[orientation]+=ms[orientation];
if (i>0)
minsize[orientation]+=button_sep;
minsize[!orientation] = MAX(minsize[!orientation],ms[!orientation]);
}
return minsize;
}
void ButtonArray::_notification(int p_what) {
switch(p_what) {
case NOTIFICATION_MOUSE_EXIT:{
hover=-1;
update();
}break;
case NOTIFICATION_READY:{
MethodInfo mi;
mi.name="mouse_sub_enter";
add_user_signal(mi);
}break;
case NOTIFICATION_DRAW: {
Size2 size=get_size();
Size2 minsize=get_combined_minimum_size();
Ref<StyleBox> style_normal = get_stylebox("normal");
Ref<StyleBox> style_selected = get_stylebox("selected");
Ref<StyleBox> style_focus = get_stylebox("focus");
Ref<StyleBox> style_hover = get_stylebox("hover");
Ref<Font> font_normal = get_font("font");
Ref<Font> font_selected = get_font("font_selected");
int icon_sep = get_constant("icon_separator");
int button_sep = get_constant("button_separator");
Color color_normal = get_color("font_color");
Color color_selected = get_color("font_color_selected");
int sep=button_sep;
int ofs=0;
int expand=0;
switch(align) {
case ALIGN_BEGIN: {
ofs=0;
} break;
case ALIGN_CENTER: {
ofs=Math::floor((size[orientation] - minsize[orientation])/2);
} break;
case ALIGN_END: {
ofs=Math::floor((size[orientation] - minsize[orientation]));
} break;
case ALIGN_FILL: {
if (buttons.size()>1)
sep+=Math::floor((size[orientation]- minsize[orientation])/(buttons.size()-1.0));
ofs=0;
} break;
case ALIGN_EXPAND_FILL: {
ofs=0;
expand=size[orientation] - minsize[orientation];
} break;
}
int op_size = orientation==VERTICAL ? size.width : size.height;
for(int i=0;i<buttons.size();i++) {
int ms = buttons[i]._ms_cache;
int s=ms;
if (expand>0) {
s+=expand/buttons.size();
}
if(min_button_size != -1 && s < min_button_size){
s = min_button_size;
}
Rect2 r;
r.pos[orientation]=ofs;
r.pos[!orientation]=0;
r.size[orientation]=s;
r.size[!orientation]=op_size;
Ref<Font> f;
Color c;
Point2 sbsize;
Point2 sbofs;
if (i==selected) {
draw_style_box(style_selected,r);
sbsize=style_selected->get_minimum_size();
sbofs=style_selected->get_offset();
f=font_selected;
c=color_selected;
if (has_focus())
draw_style_box(style_focus,r);
} else {
if (hover==i)
draw_style_box(style_hover,r);
else
draw_style_box(style_normal,r);
sbsize=style_selected->get_minimum_size();
sbofs=style_normal->get_offset();
f=font_normal;
c=color_normal;
}
Size2 ssize = f->get_string_size(buttons[i].text);
if (buttons[i].icon.is_valid()) {
ssize.x+=buttons[i].icon->get_width();
}
Point2 text_ofs=((r.size-ssize-sbsize)/2.0+Point2(0,f->get_ascent())).floor()+sbofs;
if (buttons[i].icon.is_valid()) {
draw_texture(buttons[i].icon,r.pos+Point2(text_ofs.x,Math::floor((r.size.height-buttons[i].icon->get_height())/2.0)));
text_ofs.x+=buttons[i].icon->get_width()+icon_sep;
}
draw_string(f,text_ofs+r.pos,buttons[i].text,c);
buttons[i]._pos_cache=ofs;
buttons[i]._size_cache=s;
ofs+=s;
ofs+=sep;
}
} break;
}
}
void ButtonArray::_input_event(const InputEvent& p_event) {
if (
( (orientation==HORIZONTAL && p_event.is_action("ui_left") ) ||
(orientation==VERTICAL && p_event.is_action("ui_up") ) )
&& p_event.is_pressed() && selected>0) {
set_selected(selected-1);
accept_event();
emit_signal("button_selected",selected);
return;
}
if (
( (orientation==HORIZONTAL && p_event.is_action("ui_right") ) ||
(orientation==VERTICAL && p_event.is_action("ui_down") ) )
&& p_event.is_pressed() && selected<(buttons.size()-1)) {
set_selected(selected+1);
accept_event();
emit_signal("button_selected",selected);
return;
}
if (p_event.type==InputEvent::MOUSE_BUTTON && p_event.mouse_button.pressed && p_event.mouse_button.button_index==BUTTON_LEFT) {
int ofs = orientation==HORIZONTAL ? p_event.mouse_button.x: p_event.mouse_button.y;
for(int i=0;i<buttons.size();i++) {
if (ofs>=buttons[i]._pos_cache && ofs<buttons[i]._pos_cache+buttons[i]._size_cache) {
set_selected(i);
emit_signal("button_selected",i);
return;
}
}
}
if (p_event.type==InputEvent::MOUSE_MOTION) {
int ofs = orientation==HORIZONTAL ? p_event.mouse_motion.x: p_event.mouse_motion.y;
int new_hover=-1;
for(int i=0;i<buttons.size();i++) {
if (ofs>=buttons[i]._pos_cache && ofs<buttons[i]._pos_cache+buttons[i]._size_cache) {
new_hover=i;
break;
}
}
if (new_hover!=hover) {
hover=new_hover;
emit_signal("mouse_sub_enter");
update();
}
}
}
void ButtonArray::set_align(Align p_align) {
align=p_align;
update();
}
ButtonArray::Align ButtonArray::get_align() const {
return align;
}
void ButtonArray::add_button(const String& p_text) {
Button button;
button.text=p_text;
buttons.push_back(button);
update();
if (selected==-1)
selected=0;
minimum_size_changed();
}
void ButtonArray::add_icon_button(const Ref<Texture>& p_icon,const String& p_text) {
Button button;
button.text=p_text;
button.icon=p_icon;
buttons.push_back(button);
if (selected==-1)
selected=0;
update();
}
void ButtonArray::set_button_text(int p_button, const String& p_text) {
ERR_FAIL_INDEX(p_button,buttons.size());
buttons[p_button].text=p_text;
update();
minimum_size_changed();
}
void ButtonArray::set_button_icon(int p_button, const Ref<Texture>& p_icon) {
ERR_FAIL_INDEX(p_button,buttons.size());
buttons[p_button].icon=p_icon;
update();
minimum_size_changed();
}
String ButtonArray::get_button_text(int p_button) const {
ERR_FAIL_INDEX_V(p_button,buttons.size(),"");
return buttons[p_button].text;
}
Ref<Texture> ButtonArray::get_button_icon(int p_button) const {
ERR_FAIL_INDEX_V(p_button,buttons.size(),Ref<Texture>());
return buttons[p_button].icon;
}
int ButtonArray::get_selected() const {
return selected;
}
int ButtonArray::get_hovered() const {
return hover;
}
void ButtonArray::set_selected(int p_selected) {
ERR_FAIL_INDEX(p_selected,buttons.size());
selected=p_selected;
update();
}
void ButtonArray::erase_button(int p_button) {
ERR_FAIL_INDEX(p_button,buttons.size());
buttons.remove(p_button);
if (p_button>=selected)
selected--;
if (selected<0)
selected=0;
if (selected>=buttons.size())
selected=buttons.size()-1;
update();
}
void ButtonArray::clear(){
buttons.clear();
selected=-1;
update();
}
int ButtonArray::get_button_count() const {
return buttons.size();
}
void ButtonArray::get_translatable_strings(List<String> *p_strings) const {
for(int i=0;i<buttons.size();i++)
p_strings->push_back(buttons[i].text);
}
void ButtonArray::_bind_methods() {
ObjectTypeDB::bind_method(_MD("add_button","text"),&ButtonArray::add_button);
ObjectTypeDB::bind_method(_MD("add_icon_button","icon:Texture","text"),&ButtonArray::add_icon_button,DEFVAL(""));
ObjectTypeDB::bind_method(_MD("set_button_text","button_idx","text"),&ButtonArray::set_button_text);
ObjectTypeDB::bind_method(_MD("set_button_icon","button_idx","icon:Texture"),&ButtonArray::set_button_icon);
ObjectTypeDB::bind_method(_MD("get_button_text","button_idx"),&ButtonArray::get_button_text);
ObjectTypeDB::bind_method(_MD("get_button_icon:Texture","button_idx"),&ButtonArray::get_button_icon);
ObjectTypeDB::bind_method(_MD("get_button_count"),&ButtonArray::get_button_count);
ObjectTypeDB::bind_method(_MD("get_selected"),&ButtonArray::get_selected);
ObjectTypeDB::bind_method(_MD("get_hovered"),&ButtonArray::get_hovered);
ObjectTypeDB::bind_method(_MD("set_selected","button_idx"),&ButtonArray::set_selected);
ObjectTypeDB::bind_method(_MD("erase_button","button_idx"),&ButtonArray::erase_button);
ObjectTypeDB::bind_method(_MD("clear"),&ButtonArray::clear);
ObjectTypeDB::bind_method(_MD("_input_event"),&ButtonArray::_input_event);
BIND_CONSTANT( ALIGN_BEGIN );
BIND_CONSTANT( ALIGN_CENTER );
BIND_CONSTANT( ALIGN_END );
BIND_CONSTANT( ALIGN_FILL );
BIND_CONSTANT( ALIGN_EXPAND_FILL );
ADD_SIGNAL( MethodInfo("button_selected",PropertyInfo(Variant::INT,"button_idx")));
}
ButtonArray::ButtonArray(Orientation p_orientation) {
orientation=p_orientation;
selected=-1;
set_focus_mode(FOCUS_ALL);
hover=-1;
min_button_size = -1;
}