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godot/scene/gui/popup.cpp

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/*************************************************************************/
/* popup.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) */
/* */
/* 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 "popup.h"
#include "engine.h"
#include "os/keyboard.h"
void Popup::_gui_input(Ref<InputEvent> p_event) {
}
void Popup::_notification(int p_what) {
if (p_what == NOTIFICATION_VISIBILITY_CHANGED) {
if (popped_up && !is_visible_in_tree()) {
popped_up = false;
notification(NOTIFICATION_POPUP_HIDE);
emit_signal("popup_hide");
}
update_configuration_warning();
}
if (p_what == NOTIFICATION_ENTER_TREE) {
//small helper to make editing of these easier in editor
#ifdef TOOLS_ENABLED
if (Engine::get_singleton()->is_editor_hint() && get_tree()->get_edited_scene_root() && get_tree()->get_edited_scene_root()->is_a_parent_of(this)) {
set_as_toplevel(false);
}
#endif
}
}
void Popup::_fix_size() {
Point2 pos = get_global_position();
Size2 size = get_size();
Point2 window_size = get_viewport_rect().size;
if (pos.x + size.width > window_size.width)
pos.x = window_size.width - size.width;
if (pos.x < 0)
pos.x = 0;
if (pos.y + size.height > window_size.height)
pos.y = window_size.height - size.height;
if (pos.y < 0)
pos.y = 0;
if (pos != get_position())
set_global_position(pos);
}
void Popup::set_as_minsize() {
Size2 total_minsize;
for (int i = 0; i < get_child_count(); i++) {
Control *c = Object::cast_to<Control>(get_child(i));
if (!c)
continue;
if (!c->is_visible())
continue;
Size2 minsize = c->get_combined_minimum_size();
for (int j = 0; j < 2; j++) {
Margin m_beg = Margin(0 + j);
Margin m_end = Margin(2 + j);
float margin_begin = c->get_margin(m_beg);
float margin_end = c->get_margin(m_end);
float anchor_begin = c->get_anchor(m_beg);
float anchor_end = c->get_anchor(m_end);
minsize[j] += margin_begin * (ANCHOR_END - anchor_begin) + margin_end * anchor_end;
}
total_minsize.width = MAX(total_minsize.width, minsize.width);
total_minsize.height = MAX(total_minsize.height, minsize.height);
}
set_size(total_minsize);
}
void Popup::popup_centered_minsize(const Size2 &p_minsize) {
Size2 total_minsize = p_minsize;
for (int i = 0; i < get_child_count(); i++) {
Control *c = Object::cast_to<Control>(get_child(i));
if (!c)
continue;
if (!c->is_visible())
continue;
Size2 minsize = c->get_combined_minimum_size();
for (int j = 0; j < 2; j++) {
Margin m_beg = Margin(0 + j);
Margin m_end = Margin(2 + j);
float margin_begin = c->get_margin(m_beg);
float margin_end = c->get_margin(m_end);
float anchor_begin = c->get_anchor(m_beg);
float anchor_end = c->get_anchor(m_end);
minsize[j] += margin_begin * (ANCHOR_END - anchor_begin) + margin_end * anchor_end;
}
total_minsize.width = MAX(total_minsize.width, minsize.width);
total_minsize.height = MAX(total_minsize.height, minsize.height);
}
popup_centered(total_minsize);
popped_up = true;
}
void Popup::popup_centered(const Size2 &p_size) {
Point2 window_size = get_viewport_rect().size;
emit_signal("about_to_show");
Rect2 rect;
rect.size = p_size == Size2() ? get_size() : p_size;
rect.position = ((window_size - rect.size) / 2.0).floor();
set_position(rect.position);
set_size(rect.size);
show_modal(exclusive);
_fix_size();
Control *focusable = find_next_valid_focus();
if (focusable)
focusable->grab_focus();
_post_popup();
notification(NOTIFICATION_POST_POPUP);
popped_up = true;
}
void Popup::popup_centered_ratio(float p_screen_ratio) {
emit_signal("about_to_show");
Rect2 rect;
Point2 window_size = get_viewport_rect().size;
rect.size = (window_size * p_screen_ratio).floor();
rect.position = ((window_size - rect.size) / 2.0).floor();
set_position(rect.position);
set_size(rect.size);
show_modal(exclusive);
_fix_size();
Control *focusable = find_next_valid_focus();
if (focusable)
focusable->grab_focus();
_post_popup();
notification(NOTIFICATION_POST_POPUP);
popped_up = true;
}
void Popup::popup(const Rect2 &p_bounds) {
emit_signal("about_to_show");
show_modal(exclusive);
// Fit the popup into the optionally provided bounds.
if (!p_bounds.has_no_area()) {
set_position(p_bounds.position);
set_size(p_bounds.size);
}
_fix_size();
Control *focusable = find_next_valid_focus();
if (focusable)
focusable->grab_focus();
_post_popup();
notification(NOTIFICATION_POST_POPUP);
popped_up = true;
}
void Popup::set_exclusive(bool p_exclusive) {
exclusive = p_exclusive;
}
bool Popup::is_exclusive() const {
return exclusive;
}
void Popup::_bind_methods() {
ClassDB::bind_method(D_METHOD("popup_centered", "size"), &Popup::popup_centered, DEFVAL(Size2()));
ClassDB::bind_method(D_METHOD("popup_centered_ratio", "ratio"), &Popup::popup_centered_ratio, DEFVAL(0.75));
ClassDB::bind_method(D_METHOD("popup_centered_minsize", "minsize"), &Popup::popup_centered_minsize, DEFVAL(Size2()));
ClassDB::bind_method(D_METHOD("popup", "bounds"), &Popup::popup, DEFVAL(Rect2()));
ClassDB::bind_method(D_METHOD("set_exclusive", "enable"), &Popup::set_exclusive);
ClassDB::bind_method(D_METHOD("is_exclusive"), &Popup::is_exclusive);
ADD_SIGNAL(MethodInfo("about_to_show"));
ADD_SIGNAL(MethodInfo("popup_hide"));
ADD_GROUP("Popup", "popup_");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "popup_exclusive"), "set_exclusive", "is_exclusive");
BIND_CONSTANT(NOTIFICATION_POST_POPUP);
BIND_CONSTANT(NOTIFICATION_POPUP_HIDE);
}
Popup::Popup() {
set_as_toplevel(true);
exclusive = false;
popped_up = false;
hide();
}
String Popup::get_configuration_warning() const {
if (is_visible_in_tree()) {
return TTR("Popups will hide by default unless you call popup() or any of the popup*() functions. Making them visible for editing is fine though, but they will hide upon running.");
}
return String();
}
Popup::~Popup() {
}
void PopupPanel::set_child_rect(Control *p_child) {
ERR_FAIL_NULL(p_child);
Ref<StyleBox> p = get_stylebox("panel");
p_child->set_anchors_preset(Control::PRESET_WIDE);
p_child->set_margin(MARGIN_LEFT, p->get_margin(MARGIN_LEFT));
p_child->set_margin(MARGIN_RIGHT, -p->get_margin(MARGIN_RIGHT));
p_child->set_margin(MARGIN_TOP, p->get_margin(MARGIN_TOP));
p_child->set_margin(MARGIN_BOTTOM, -p->get_margin(MARGIN_BOTTOM));
}
void PopupPanel::_notification(int p_what) {
if (p_what == NOTIFICATION_DRAW) {
get_stylebox("panel")->draw(get_canvas_item(), Rect2(Point2(), get_size()));
}
}
PopupPanel::PopupPanel() {
}
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