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2a3e00c8c7
godot/scene/gui/split_container.cpp
Juan Linietsky 2a3e00c8c7 -Many fixes to VisualScript, fixed property names, etc. 
-Added ability to set/get a field in GetSet, as well as assignment ops
-Added a Select node
-Fixed update bugs related to variable list and exported properties, closes #9458
2017-06-30 21:35:05 -03:00

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/*************************************************************************/
/* split_container.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2017 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 "split_container.h"
#include "label.h"
#include "margin_container.h"
struct _MinSizeCache {
int min_size;
bool will_stretch;
int final_size;
};
Control *SplitContainer::_getch(int p_idx) const {
int idx = 0;
for (int i = 0; i < get_child_count(); i++) {
Control *c = get_child(i)->cast_to<Control>();
if (!c || !c->is_visible_in_tree())
continue;
if (c->is_set_as_toplevel())
continue;
if (idx == p_idx)
return c;
idx++;
}
return NULL;
}
void SplitContainer::_resort() {
/** First pass, determine minimum size AND amount of stretchable elements */
int axis = vertical ? 1 : 0;
bool has_first = _getch(0);
bool has_second = _getch(1);
if (!has_first && !has_second) {
return;
} else if (!(has_first && has_second)) {
if (has_first)
fit_child_in_rect(_getch(0), Rect2(Point2(), get_size()));
else
fit_child_in_rect(_getch(1), Rect2(Point2(), get_size()));
return;
}
Control *first = _getch(0);
Control *second = _getch(1);
bool ratiomode = false;
bool expand_first_mode = false;
if (vertical) {
ratiomode = first->get_v_size_flags() & SIZE_EXPAND && second->get_v_size_flags() & SIZE_EXPAND;
expand_first_mode = first->get_v_size_flags() & SIZE_EXPAND && !(second->get_v_size_flags() & SIZE_EXPAND);
} else {
ratiomode = first->get_h_size_flags() & SIZE_EXPAND && second->get_h_size_flags() & SIZE_EXPAND;
expand_first_mode = first->get_h_size_flags() & SIZE_EXPAND && !(second->get_h_size_flags() & SIZE_EXPAND);
}
int sep = get_constant("separation");
Ref<Texture> g = get_icon("grabber");
if (dragger_visibility == DRAGGER_HIDDEN_COLLAPSED) {
sep = 0;
} else {
sep = MAX(sep, vertical ? g->get_height() : g->get_width());
}
int total = vertical ? get_size().height : get_size().width;
total -= sep;
int minimum = 0;
Size2 ms_first = first->get_combined_minimum_size();
Size2 ms_second = second->get_combined_minimum_size();
if (vertical) {
minimum = ms_first.height + ms_second.height;
} else {
minimum = ms_first.width + ms_second.width;
}
int available = total - minimum;
if (available < 0)
available = 0;
middle_sep = 0;
if (collapsed) {
if (ratiomode) {
int first_ratio = first->get_stretch_ratio();
int second_ratio = second->get_stretch_ratio();
float ratio = float(first_ratio) / (first_ratio + second_ratio);
middle_sep = ms_first[axis] + available * ratio;
} else if (expand_first_mode) {
middle_sep = get_size()[axis] - ms_second[axis] - sep;
} else {
middle_sep = ms_first[axis];
}
} else if (ratiomode) {
int first_ratio = first->get_stretch_ratio();
int second_ratio = second->get_stretch_ratio();
float ratio = float(first_ratio) / (first_ratio + second_ratio);
if (expand_ofs < -(available * ratio))
expand_ofs = -(available * ratio);
else if (expand_ofs > (available * (1.0 - ratio)))
expand_ofs = (available * (1.0 - ratio));
middle_sep = ms_first[axis] + available * ratio + expand_ofs;
} else if (expand_first_mode) {
if (expand_ofs > 0)
expand_ofs = 0;
if (expand_ofs < -available)
expand_ofs = -available;
middle_sep = get_size()[axis] - ms_second[axis] - sep + expand_ofs;
} else {
if (expand_ofs < 0)
expand_ofs = 0;
if (expand_ofs > available)
expand_ofs = available;
middle_sep = ms_first[axis] + expand_ofs;
}
if (vertical) {
fit_child_in_rect(first, Rect2(Point2(0, 0), Size2(get_size().width, middle_sep)));
int sofs = middle_sep + sep;
fit_child_in_rect(second, Rect2(Point2(0, sofs), Size2(get_size().width, get_size().height - sofs)));
} else {
fit_child_in_rect(first, Rect2(Point2(0, 0), Size2(middle_sep, get_size().height)));
int sofs = middle_sep + sep;
fit_child_in_rect(second, Rect2(Point2(sofs, 0), Size2(get_size().width - sofs, get_size().height)));
}
update();
_change_notify("split_offset");
}
Size2 SplitContainer::get_minimum_size() const {
/* Calculate MINIMUM SIZE */
Size2i minimum;
int sep = get_constant("separation");
Ref<Texture> g = get_icon("grabber");
sep = (dragger_visibility != DRAGGER_HIDDEN_COLLAPSED) ? MAX(sep, vertical ? g->get_height() : g->get_width()) : 0;
for (int i = 0; i < 2; i++) {
if (!_getch(i))
break;
if (i == 1) {
if (vertical)
minimum.height += sep;
else
minimum.width += sep;
}
Size2 ms = _getch(i)->get_combined_minimum_size();
if (vertical) {
minimum.height += ms.height;
minimum.width = MAX(minimum.width, ms.width);
} else {
minimum.width += ms.width;
minimum.height = MAX(minimum.height, ms.height);
}
}
return minimum;
}
void SplitContainer::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_SORT_CHILDREN: {
_resort();
} break;
case NOTIFICATION_MOUSE_ENTER: {
mouse_inside = true;
update();
} break;
case NOTIFICATION_MOUSE_EXIT: {
mouse_inside = false;
update();
} break;
case NOTIFICATION_DRAW: {
if (!_getch(0) || !_getch(1))
return;
if (collapsed || (!mouse_inside && get_constant("autohide")))
return;
int sep = dragger_visibility != DRAGGER_HIDDEN_COLLAPSED ? get_constant("separation") : 0;
Ref<Texture> tex = get_icon("grabber");
Size2 size = get_size();
if (vertical) {
//draw_style_box( get_stylebox("bg"), Rect2(0,middle_sep,get_size().width,sep));
if (dragger_visibility == DRAGGER_VISIBLE)
draw_texture(tex, Point2i((size.x - tex->get_width()) / 2, middle_sep + (sep - tex->get_height()) / 2));
} else {
//draw_style_box( get_stylebox("bg"), Rect2(middle_sep,0,sep,get_size().height));
if (dragger_visibility == DRAGGER_VISIBLE)
draw_texture(tex, Point2i(middle_sep + (sep - tex->get_width()) / 2, (size.y - tex->get_height()) / 2));
}
} break;
}
}
void SplitContainer::_gui_input(const Ref<InputEvent> &p_event) {
if (collapsed || !_getch(0) || !_getch(1) || dragger_visibility != DRAGGER_VISIBLE)
return;
Ref<InputEventMouseButton> mb = p_event;
if (mb.is_valid()) {
if (mb->get_button_index() == BUTTON_LEFT) {
if (mb->is_pressed()) {
int sep = get_constant("separation");
if (vertical) {
if (mb->get_position().y > middle_sep && mb->get_position().y < middle_sep + sep) {
dragging = true;
drag_from = mb->get_position().y;
drag_ofs = expand_ofs;
}
} else {
if (mb->get_position().x > middle_sep && mb->get_position().x < middle_sep + sep) {
dragging = true;
drag_from = mb->get_position().x;
drag_ofs = expand_ofs;
}
}
} else {
dragging = false;
}
}
}
Ref<InputEventMouseMotion> mm = p_event;
if (mm.is_valid()) {
if (dragging) {
expand_ofs = drag_ofs + ((vertical ? mm->get_position().y : mm->get_position().x) - drag_from);
queue_sort();
emit_signal("dragged", get_split_offset());
}
}
}
Control::CursorShape SplitContainer::get_cursor_shape(const Point2 &p_pos) const {
if (collapsed)
return Control::get_cursor_shape(p_pos);
if (dragging)
return (vertical ? CURSOR_VSIZE : CURSOR_HSIZE);
int sep = get_constant("separation");
if (vertical) {
if (p_pos.y > middle_sep && p_pos.y < middle_sep + sep) {
return CURSOR_VSIZE;
}
} else {
if (p_pos.x > middle_sep && p_pos.x < middle_sep + sep) {
return CURSOR_HSIZE;
}
}
return Control::get_cursor_shape(p_pos);
}
void SplitContainer::set_split_offset(int p_offset) {
if (expand_ofs == p_offset)
return;
expand_ofs = p_offset;
queue_sort();
}
int SplitContainer::get_split_offset() const {
return expand_ofs;
}
void SplitContainer::set_collapsed(bool p_collapsed) {
if (collapsed == p_collapsed)
return;
collapsed = p_collapsed;
queue_sort();
}
void SplitContainer::set_dragger_visibility(DraggerVisibility p_visibility) {
dragger_visibility = p_visibility;
queue_sort();
update();
}
SplitContainer::DraggerVisibility SplitContainer::get_dragger_visibility() const {
return dragger_visibility;
}
bool SplitContainer::is_collapsed() const {
return collapsed;
}
void SplitContainer::_bind_methods() {
ClassDB::bind_method(D_METHOD("_gui_input"), &SplitContainer::_gui_input);
ClassDB::bind_method(D_METHOD("set_split_offset", "offset"), &SplitContainer::set_split_offset);
ClassDB::bind_method(D_METHOD("get_split_offset"), &SplitContainer::get_split_offset);
ClassDB::bind_method(D_METHOD("set_collapsed", "collapsed"), &SplitContainer::set_collapsed);
ClassDB::bind_method(D_METHOD("is_collapsed"), &SplitContainer::is_collapsed);
ClassDB::bind_method(D_METHOD("set_dragger_visibility", "mode"), &SplitContainer::set_dragger_visibility);
ClassDB::bind_method(D_METHOD("get_dragger_visibility"), &SplitContainer::get_dragger_visibility);
ADD_SIGNAL(MethodInfo("dragged", PropertyInfo(Variant::INT, "offset")));
ADD_PROPERTY(PropertyInfo(Variant::INT, "split_offset"), "set_split_offset", "get_split_offset");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "collapsed"), "set_collapsed", "is_collapsed");
ADD_PROPERTY(PropertyInfo(Variant::INT, "dragger_visibility", PROPERTY_HINT_ENUM, "Visible,Hidden,Hidden & Collapsed"), "set_dragger_visibility", "get_dragger_visibility");
BIND_CONSTANT(DRAGGER_VISIBLE);
BIND_CONSTANT(DRAGGER_HIDDEN);
BIND_CONSTANT(DRAGGER_HIDDEN_COLLAPSED);
}
SplitContainer::SplitContainer(bool p_vertical) {
mouse_inside = false;
expand_ofs = 0;
middle_sep = 0;
vertical = p_vertical;
dragging = false;
collapsed = false;
dragger_visibility = DRAGGER_VISIBLE;
}
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