godot/scene/gui/popup.cpp
Rémi Verschelde a7f49ac9a1 Update copyright statements to 2020
Happy new year to the wonderful Godot community!

We're starting a new decade with a well-established, non-profit, free
and open source game engine, and tons of further improvements in the
pipeline from hundreds of contributors.

Godot will keep getting better, and we're looking forward to all the
games that the community will keep developing and releasing with it.
2020-01-01 11:16:22 +01:00

305 lines
8.8 KiB
C++

/*************************************************************************/
/* popup.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 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 "core/engine.h"
#include "core/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_EXIT_TREE) {
if (popped_up) {
popped_up = false;
notification(NOTIFICATION_POPUP_HIDE);
emit_signal("popup_hide");
}
}
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)) {
//edited on editor
set_as_toplevel(false);
} else
#endif
if (is_visible()) {
hide();
}
}
}
void Popup::_fix_size() {
Point2 pos = get_global_position();
Size2 size = get_size() * get_scale();
Point2 window_size = get_viewport_rect().size - get_viewport_transform().get_origin();
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_clamped(const Size2 &p_size, float p_fallback_ratio) {
Size2 popup_size = p_size;
Size2 window_size = get_viewport_rect().size;
// clamp popup size in each dimension if window size is too small (using fallback ratio)
popup_size.x = MIN(window_size.x * p_fallback_ratio, popup_size.x);
popup_size.y = MIN(window_size.y * p_fallback_ratio, popup_size.y);
popup_centered(popup_size);
}
void Popup::popup_centered_minsize(const Size2 &p_minsize) {
set_custom_minimum_size(p_minsize);
_fix_size();
popup_centered();
}
void Popup::popup_centered(const Size2 &p_size) {
Rect2 rect;
Size2 window_size = get_viewport_rect().size;
rect.size = p_size == Size2() ? get_size() : p_size;
rect.position = ((window_size - rect.size) / 2.0).floor();
_popup(rect, true);
}
void Popup::popup_centered_ratio(float p_screen_ratio) {
Rect2 rect;
Size2 window_size = get_viewport_rect().size;
rect.size = (window_size * p_screen_ratio).floor();
rect.position = ((window_size - rect.size) / 2.0).floor();
_popup(rect, true);
}
void Popup::popup(const Rect2 &p_bounds) {
_popup(p_bounds);
}
void Popup::_popup(const Rect2 &p_bounds, const bool p_centered) {
emit_signal("about_to_show");
show_modal(exclusive);
// Fit the popup into the optionally provided bounds.
if (!p_bounds.has_no_area()) {
set_size(p_bounds.size);
// check if p_bounds.size was using an outdated cached values
if (p_centered && p_bounds.size != get_size()) {
set_position(p_bounds.position - ((get_size() - p_bounds.size) / 2.0).floor());
} else {
set_position(p_bounds.position);
}
}
_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("set_as_minsize"), &Popup::set_as_minsize);
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_centered_clamped", "size", "fallback_ratio"), &Popup::popup_centered_clamped, DEFVAL(Size2()), DEFVAL(0.75));
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, but they will hide upon running.");
}
return String();
}
Popup::~Popup() {
}
Size2 PopupPanel::get_minimum_size() const {
Ref<StyleBox> p = get_stylebox("panel");
Size2 ms;
for (int i = 0; i < get_child_count(); i++) {
Control *c = Object::cast_to<Control>(get_child(i));
if (!c)
continue;
if (c->is_set_as_toplevel())
continue;
Size2 cms = c->get_combined_minimum_size();
ms.x = MAX(cms.x, ms.x);
ms.y = MAX(cms.y, ms.y);
}
return ms + p->get_minimum_size();
}
void PopupPanel::_update_child_rects() {
Ref<StyleBox> p = get_stylebox("panel");
Vector2 cpos(p->get_offset());
Vector2 csize(get_size() - p->get_minimum_size());
for (int i = 0; i < get_child_count(); i++) {
Control *c = Object::cast_to<Control>(get_child(i));
if (!c)
continue;
if (c->is_set_as_toplevel())
continue;
c->set_position(cpos);
c->set_size(csize);
}
}
void PopupPanel::_notification(int p_what) {
if (p_what == NOTIFICATION_DRAW) {
get_stylebox("panel")->draw(get_canvas_item(), Rect2(Point2(), get_size()));
} else if (p_what == NOTIFICATION_READY) {
_update_child_rects();
} else if (p_what == NOTIFICATION_RESIZED) {
_update_child_rects();
}
}
PopupPanel::PopupPanel() {
}