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godot/scene/gui/button.cpp

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/**************************************************************************/
/* button.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 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.h"
#include "core/string/translation.h"
#include "scene/theme/theme_db.h"
#include "servers/rendering_server.h"
Size2 Button::get_minimum_size() const {
Ref<Texture2D> _icon = icon;
if (_icon.is_null() && has_theme_icon(SNAME("icon"))) {
_icon = theme_cache.icon;
}
return get_minimum_size_for_text_and_icon("", _icon);
}
void Button::_set_internal_margin(Side p_side, float p_value) {
_internal_margin[p_side] = p_value;
}
void Button::_queue_update_size_cache() {
}
void Button::_update_theme_item_cache() {
Control::_update_theme_item_cache();
const bool rtl = is_layout_rtl();
if (rtl && has_theme_stylebox(SNAME("normal_mirrored"))) {
theme_cache.max_style_size = theme_cache.normal_mirrored->get_minimum_size();
theme_cache.style_margin_left = theme_cache.normal_mirrored->get_margin(SIDE_LEFT);
theme_cache.style_margin_right = theme_cache.normal_mirrored->get_margin(SIDE_RIGHT);
theme_cache.style_margin_top = theme_cache.normal_mirrored->get_margin(SIDE_TOP);
theme_cache.style_margin_bottom = theme_cache.normal_mirrored->get_margin(SIDE_BOTTOM);
} else {
theme_cache.max_style_size = theme_cache.normal->get_minimum_size();
theme_cache.style_margin_left = theme_cache.normal->get_margin(SIDE_LEFT);
theme_cache.style_margin_right = theme_cache.normal->get_margin(SIDE_RIGHT);
theme_cache.style_margin_top = theme_cache.normal->get_margin(SIDE_TOP);
theme_cache.style_margin_bottom = theme_cache.normal->get_margin(SIDE_BOTTOM);
}
if (has_theme_stylebox("hover_pressed")) {
if (rtl && has_theme_stylebox(SNAME("hover_pressed_mirrored"))) {
theme_cache.max_style_size = theme_cache.max_style_size.max(theme_cache.hover_pressed_mirrored->get_minimum_size());
theme_cache.style_margin_left = MAX(theme_cache.style_margin_left, theme_cache.hover_pressed_mirrored->get_margin(SIDE_LEFT));
theme_cache.style_margin_right = MAX(theme_cache.style_margin_right, theme_cache.hover_pressed_mirrored->get_margin(SIDE_RIGHT));
theme_cache.style_margin_top = MAX(theme_cache.style_margin_top, theme_cache.hover_pressed_mirrored->get_margin(SIDE_TOP));
theme_cache.style_margin_bottom = MAX(theme_cache.style_margin_bottom, theme_cache.hover_pressed_mirrored->get_margin(SIDE_BOTTOM));
} else {
theme_cache.max_style_size = theme_cache.max_style_size.max(theme_cache.hover_pressed->get_minimum_size());
theme_cache.style_margin_left = MAX(theme_cache.style_margin_left, theme_cache.hover_pressed->get_margin(SIDE_LEFT));
theme_cache.style_margin_right = MAX(theme_cache.style_margin_right, theme_cache.hover_pressed->get_margin(SIDE_RIGHT));
theme_cache.style_margin_top = MAX(theme_cache.style_margin_top, theme_cache.hover_pressed->get_margin(SIDE_TOP));
theme_cache.style_margin_bottom = MAX(theme_cache.style_margin_bottom, theme_cache.hover_pressed->get_margin(SIDE_BOTTOM));
}
}
if (rtl && has_theme_stylebox(SNAME("pressed_mirrored"))) {
theme_cache.max_style_size = theme_cache.max_style_size.max(theme_cache.pressed_mirrored->get_minimum_size());
theme_cache.style_margin_left = MAX(theme_cache.style_margin_left, theme_cache.pressed_mirrored->get_margin(SIDE_LEFT));
theme_cache.style_margin_right = MAX(theme_cache.style_margin_right, theme_cache.pressed_mirrored->get_margin(SIDE_RIGHT));
theme_cache.style_margin_top = MAX(theme_cache.style_margin_top, theme_cache.pressed_mirrored->get_margin(SIDE_TOP));
theme_cache.style_margin_bottom = MAX(theme_cache.style_margin_bottom, theme_cache.pressed_mirrored->get_margin(SIDE_BOTTOM));
} else {
theme_cache.max_style_size = theme_cache.max_style_size.max(theme_cache.pressed->get_minimum_size());
theme_cache.style_margin_left = MAX(theme_cache.style_margin_left, theme_cache.pressed->get_margin(SIDE_LEFT));
theme_cache.style_margin_right = MAX(theme_cache.style_margin_right, theme_cache.pressed->get_margin(SIDE_RIGHT));
theme_cache.style_margin_top = MAX(theme_cache.style_margin_top, theme_cache.pressed->get_margin(SIDE_TOP));
theme_cache.style_margin_bottom = MAX(theme_cache.style_margin_bottom, theme_cache.pressed->get_margin(SIDE_BOTTOM));
}
if (rtl && has_theme_stylebox(SNAME("hover_mirrored"))) {
theme_cache.max_style_size = theme_cache.max_style_size.max(theme_cache.hover_mirrored->get_minimum_size());
theme_cache.style_margin_left = MAX(theme_cache.style_margin_left, theme_cache.hover_mirrored->get_margin(SIDE_LEFT));
theme_cache.style_margin_right = MAX(theme_cache.style_margin_right, theme_cache.hover_mirrored->get_margin(SIDE_RIGHT));
theme_cache.style_margin_top = MAX(theme_cache.style_margin_top, theme_cache.hover_mirrored->get_margin(SIDE_TOP));
theme_cache.style_margin_bottom = MAX(theme_cache.style_margin_bottom, theme_cache.hover_mirrored->get_margin(SIDE_BOTTOM));
} else {
theme_cache.max_style_size = theme_cache.max_style_size.max(theme_cache.hover->get_minimum_size());
theme_cache.style_margin_left = MAX(theme_cache.style_margin_left, theme_cache.hover->get_margin(SIDE_LEFT));
theme_cache.style_margin_right = MAX(theme_cache.style_margin_right, theme_cache.hover->get_margin(SIDE_RIGHT));
theme_cache.style_margin_top = MAX(theme_cache.style_margin_top, theme_cache.hover->get_margin(SIDE_TOP));
theme_cache.style_margin_bottom = MAX(theme_cache.style_margin_bottom, theme_cache.hover->get_margin(SIDE_BOTTOM));
}
if (rtl && has_theme_stylebox(SNAME("disabled_mirrored"))) {
theme_cache.max_style_size = theme_cache.max_style_size.max(theme_cache.disabled_mirrored->get_minimum_size());
theme_cache.style_margin_left = MAX(theme_cache.style_margin_left, theme_cache.disabled_mirrored->get_margin(SIDE_LEFT));
theme_cache.style_margin_right = MAX(theme_cache.style_margin_right, theme_cache.disabled_mirrored->get_margin(SIDE_RIGHT));
theme_cache.style_margin_top = MAX(theme_cache.style_margin_top, theme_cache.disabled_mirrored->get_margin(SIDE_TOP));
theme_cache.style_margin_bottom = MAX(theme_cache.style_margin_bottom, theme_cache.disabled_mirrored->get_margin(SIDE_BOTTOM));
} else {
theme_cache.max_style_size = theme_cache.max_style_size.max(theme_cache.disabled->get_minimum_size());
theme_cache.style_margin_left = MAX(theme_cache.style_margin_left, theme_cache.disabled->get_margin(SIDE_LEFT));
theme_cache.style_margin_right = MAX(theme_cache.style_margin_right, theme_cache.disabled->get_margin(SIDE_RIGHT));
theme_cache.style_margin_top = MAX(theme_cache.style_margin_top, theme_cache.disabled->get_margin(SIDE_TOP));
theme_cache.style_margin_bottom = MAX(theme_cache.style_margin_bottom, theme_cache.disabled->get_margin(SIDE_BOTTOM));
}
theme_cache.max_style_size = theme_cache.max_style_size.max(Vector2(theme_cache.style_margin_left + theme_cache.style_margin_right, theme_cache.style_margin_top + theme_cache.style_margin_bottom));
}
Size2 Button::_get_largest_stylebox_size() const {
return theme_cache.max_style_size;
}
Ref<StyleBox> Button::_get_current_stylebox() const {
Ref<StyleBox> stylebox = theme_cache.normal;
const bool rtl = is_layout_rtl();
switch (get_draw_mode()) {
case DRAW_NORMAL: {
if (rtl && has_theme_stylebox(SNAME("normal_mirrored"))) {
stylebox = theme_cache.normal_mirrored;
} else {
stylebox = theme_cache.normal;
}
} break;
case DRAW_HOVER_PRESSED: {
// Edge case for CheckButton and CheckBox.
if (has_theme_stylebox("hover_pressed")) {
if (rtl && has_theme_stylebox(SNAME("hover_pressed_mirrored"))) {
stylebox = theme_cache.hover_pressed_mirrored;
} else {
stylebox = theme_cache.hover_pressed;
}
break;
}
}
[[fallthrough]];
case DRAW_PRESSED: {
if (rtl && has_theme_stylebox(SNAME("pressed_mirrored"))) {
stylebox = theme_cache.pressed_mirrored;
} else {
stylebox = theme_cache.pressed;
}
} break;
case DRAW_HOVER: {
if (rtl && has_theme_stylebox(SNAME("hover_mirrored"))) {
stylebox = theme_cache.hover_mirrored;
} else {
stylebox = theme_cache.hover;
}
} break;
case DRAW_DISABLED: {
if (rtl && has_theme_stylebox(SNAME("disabled_mirrored"))) {
stylebox = theme_cache.disabled_mirrored;
} else {
stylebox = theme_cache.disabled;
}
} break;
}
return stylebox;
}
void Button::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_LAYOUT_DIRECTION_CHANGED: {
queue_redraw();
} break;
case NOTIFICATION_TRANSLATION_CHANGED: {
xl_text = atr(text);
_shape();
update_minimum_size();
queue_redraw();
} break;
case NOTIFICATION_THEME_CHANGED: {
_shape();
update_minimum_size();
queue_redraw();
} break;
case NOTIFICATION_RESIZED: {
if (autowrap_mode != TextServer::AUTOWRAP_OFF) {
_shape();
update_minimum_size();
queue_redraw();
}
} break;
case NOTIFICATION_DRAW: {
const RID ci = get_canvas_item();
const Size2 size = get_size();
Ref<StyleBox> style = _get_current_stylebox();
// Draws the stylebox in the current state.
if (!flat) {
style->draw(ci, Rect2(Point2(), size));
}
if (has_focus()) {
theme_cache.focus->draw(ci, Rect2(Point2(), size));
}
Ref<Texture2D> _icon = icon;
if (_icon.is_null() && has_theme_icon(SNAME("icon"))) {
_icon = theme_cache.icon;
}
if (xl_text.is_empty() && _icon.is_null()) {
break;
}
const float style_margin_left = (theme_cache.align_to_largest_stylebox) ? theme_cache.style_margin_left : style->get_margin(SIDE_LEFT);
const float style_margin_right = (theme_cache.align_to_largest_stylebox) ? theme_cache.style_margin_right : style->get_margin(SIDE_RIGHT);
const float style_margin_top = (theme_cache.align_to_largest_stylebox) ? theme_cache.style_margin_top : style->get_margin(SIDE_TOP);
const float style_margin_bottom = (theme_cache.align_to_largest_stylebox) ? theme_cache.style_margin_bottom : style->get_margin(SIDE_BOTTOM);
Size2 drawable_size_remained = size;
{ // The size after the stelybox is stripped.
drawable_size_remained.width -= style_margin_left + style_margin_right;
drawable_size_remained.height -= style_margin_top + style_margin_bottom;
}
const int h_separation = MAX(0, theme_cache.h_separation);
float left_internal_margin_with_h_separation = _internal_margin[SIDE_LEFT];
float right_internal_margin_with_h_separation = _internal_margin[SIDE_RIGHT];
{ // The width reserved for internal element in derived classes (and h_separation if needed).
if (_internal_margin[SIDE_LEFT] > 0.0f) {
left_internal_margin_with_h_separation += h_separation;
}
if (_internal_margin[SIDE_RIGHT] > 0.0f) {
right_internal_margin_with_h_separation += h_separation;
}
drawable_size_remained.width -= left_internal_margin_with_h_separation + right_internal_margin_with_h_separation; // The size after the internal element is stripped.
}
HorizontalAlignment icon_align_rtl_checked = horizontal_icon_alignment;
HorizontalAlignment align_rtl_checked = alignment;
// Swap icon and text alignment sides if right-to-left layout is set.
if (is_layout_rtl()) {
if (horizontal_icon_alignment == HORIZONTAL_ALIGNMENT_RIGHT) {
icon_align_rtl_checked = HORIZONTAL_ALIGNMENT_LEFT;
} else if (horizontal_icon_alignment == HORIZONTAL_ALIGNMENT_LEFT) {
icon_align_rtl_checked = HORIZONTAL_ALIGNMENT_RIGHT;
}
if (alignment == HORIZONTAL_ALIGNMENT_RIGHT) {
align_rtl_checked = HORIZONTAL_ALIGNMENT_LEFT;
} else if (alignment == HORIZONTAL_ALIGNMENT_LEFT) {
align_rtl_checked = HORIZONTAL_ALIGNMENT_RIGHT;
}
}
Color font_color;
Color icon_modulate_color(1, 1, 1, 1);
// Get the font color and icon modulate color in the current state.
switch (get_draw_mode()) {
case DRAW_NORMAL: {
// Focus colors only take precedence over normal state.
if (has_focus()) {
font_color = theme_cache.font_focus_color;
if (has_theme_color(SNAME("icon_focus_color"))) {
icon_modulate_color = theme_cache.icon_focus_color;
}
} else {
font_color = theme_cache.font_color;
if (has_theme_color(SNAME("icon_normal_color"))) {
icon_modulate_color = theme_cache.icon_normal_color;
}
}
} break;
case DRAW_HOVER_PRESSED: {
// Edge case for CheckButton and CheckBox.
if (has_theme_stylebox("hover_pressed")) {
if (has_theme_color(SNAME("font_hover_pressed_color"))) {
font_color = theme_cache.font_hover_pressed_color;
}
if (has_theme_color(SNAME("icon_hover_pressed_color"))) {
icon_modulate_color = theme_cache.icon_hover_pressed_color;
}
break;
}
}
[[fallthrough]];
case DRAW_PRESSED: {
if (has_theme_color(SNAME("font_pressed_color"))) {
font_color = theme_cache.font_pressed_color;
} else {
font_color = theme_cache.font_color;
}
if (has_theme_color(SNAME("icon_pressed_color"))) {
icon_modulate_color = theme_cache.icon_pressed_color;
}
} break;
case DRAW_HOVER: {
font_color = theme_cache.font_hover_color;
if (has_theme_color(SNAME("icon_hover_color"))) {
icon_modulate_color = theme_cache.icon_hover_color;
}
} break;
case DRAW_DISABLED: {
font_color = theme_cache.font_disabled_color;
if (has_theme_color(SNAME("icon_disabled_color"))) {
icon_modulate_color = theme_cache.icon_disabled_color;
} else {
icon_modulate_color.a = 0.4;
}
} break;
}
const bool is_clipped = clip_text || overrun_behavior != TextServer::OVERRUN_NO_TRIMMING || autowrap_mode != TextServer::AUTOWRAP_OFF;
const Size2 custom_element_size = drawable_size_remained;
// Draw the icon.
if (_icon.is_valid()) {
Size2 icon_size;
{ // Calculate the drawing size of the icon.
icon_size = _icon->get_size();
if (expand_icon) {
const Size2 text_buf_size = text_buf->get_size();
Size2 _size = custom_element_size;
if (!is_clipped && icon_align_rtl_checked != HORIZONTAL_ALIGNMENT_CENTER && text_buf_size.width > 0.0f) {
// If there is not enough space for icon and h_separation, h_separation will occupy the space first,
// so the icon's width may be negative. Keep it negative to make it easier to calculate the space
// reserved for text later.
_size.width -= text_buf_size.width + h_separation;
}
if (vertical_icon_alignment != VERTICAL_ALIGNMENT_CENTER) {
_size.height -= text_buf_size.height;
}
float icon_width = icon_size.width * _size.height / icon_size.height;
float icon_height = _size.height;
if (icon_width > _size.width) {
icon_width = _size.width;
icon_height = icon_size.height * icon_width / icon_size.width;
}
icon_size = Size2(icon_width, icon_height);
}
icon_size = _fit_icon_size(icon_size);
icon_size = icon_size.round();
}
if (icon_size.width > 0.0f) {
// Calculate the drawing position of the icon.
Point2 icon_ofs;
switch (icon_align_rtl_checked) {
case HORIZONTAL_ALIGNMENT_CENTER: {
icon_ofs.x = (custom_element_size.width - icon_size.width) / 2.0f;
}
[[fallthrough]];
case HORIZONTAL_ALIGNMENT_FILL:
case HORIZONTAL_ALIGNMENT_LEFT: {
icon_ofs.x += style_margin_left;
icon_ofs.x += left_internal_margin_with_h_separation;
} break;
case HORIZONTAL_ALIGNMENT_RIGHT: {
icon_ofs.x = size.x - style_margin_right;
icon_ofs.x -= right_internal_margin_with_h_separation;
icon_ofs.x -= icon_size.width;
} break;
}
switch (vertical_icon_alignment) {
case VERTICAL_ALIGNMENT_CENTER: {
icon_ofs.y = (custom_element_size.height - icon_size.height) / 2.0f;
}
[[fallthrough]];
case VERTICAL_ALIGNMENT_FILL:
case VERTICAL_ALIGNMENT_TOP: {
icon_ofs.y += style_margin_top;
} break;
case VERTICAL_ALIGNMENT_BOTTOM: {
icon_ofs.y = size.y - style_margin_bottom - icon_size.height;
} break;
}
icon_ofs = icon_ofs.floor();
Rect2 icon_region = Rect2(icon_ofs, icon_size);
draw_texture_rect(_icon, icon_region, false, icon_modulate_color);
}
if (!xl_text.is_empty()) {
// Update the size after the icon is stripped. Stripping only when the icon alignments are not center.
if (icon_align_rtl_checked != HORIZONTAL_ALIGNMENT_CENTER) {
// Subtract the space's width occupied by icon and h_separation together.
drawable_size_remained.width -= icon_size.width + h_separation;
}
if (vertical_icon_alignment != VERTICAL_ALIGNMENT_CENTER) {
drawable_size_remained.height -= icon_size.height;
}
}
}
// Draw the text.
if (!xl_text.is_empty()) {
text_buf->set_alignment(align_rtl_checked);
float text_buf_width = Math::ceil(MAX(1.0f, drawable_size_remained.width)); // The space's width filled by the text_buf.
text_buf->set_width(text_buf_width);
Point2 text_ofs;
switch (align_rtl_checked) {
case HORIZONTAL_ALIGNMENT_CENTER: {
text_ofs.x = (drawable_size_remained.width - text_buf_width) / 2.0f;
}
[[fallthrough]];
case HORIZONTAL_ALIGNMENT_FILL:
case HORIZONTAL_ALIGNMENT_LEFT:
case HORIZONTAL_ALIGNMENT_RIGHT: {
text_ofs.x += style_margin_left;
text_ofs.x += left_internal_margin_with_h_separation;
if (icon_align_rtl_checked == HORIZONTAL_ALIGNMENT_LEFT) {
// Offset by the space's width that occupied by icon and h_separation together.
text_ofs.x += custom_element_size.width - drawable_size_remained.width;
}
} break;
}
text_ofs.y = (drawable_size_remained.height - text_buf->get_size().height) / 2.0f + style_margin_top;
if (vertical_icon_alignment == VERTICAL_ALIGNMENT_TOP) {
text_ofs.y += custom_element_size.height - drawable_size_remained.height; // Offset by the icon's height.
}
Color font_outline_color = theme_cache.font_outline_color;
int outline_size = theme_cache.outline_size;
if (outline_size > 0 && font_outline_color.a > 0.0f) {
text_buf->draw_outline(ci, text_ofs, outline_size, font_outline_color);
}
text_buf->draw(ci, text_ofs, font_color);
}
} break;
}
}
Size2 Button::_fit_icon_size(const Size2 &p_size) const {
int max_width = theme_cache.icon_max_width;
Size2 icon_size = p_size;
if (max_width > 0 && icon_size.width > max_width) {
icon_size.height = icon_size.height * max_width / icon_size.width;
icon_size.width = max_width;
}
return icon_size;
}
Size2 Button::get_minimum_size_for_text_and_icon(const String &p_text, Ref<Texture2D> p_icon) const {
Ref<TextParagraph> paragraph;
if (p_text.is_empty()) {
paragraph = text_buf;
} else {
paragraph.instantiate();
const_cast<Button *>(this)->_shape(paragraph, p_text);
}
Size2 minsize = paragraph->get_size();
if (clip_text || overrun_behavior != TextServer::OVERRUN_NO_TRIMMING || autowrap_mode != TextServer::AUTOWRAP_OFF) {
minsize.width = 0;
}
float left_internal_margin_with_h_separation = _internal_margin[SIDE_LEFT];
float right_internal_margin_with_h_separation = _internal_margin[SIDE_RIGHT];
{ // The width reserved for internal element in derived classes (and h_separation if needed).
if (_internal_margin[SIDE_LEFT] > 0.0f) {
left_internal_margin_with_h_separation += theme_cache.h_separation;
}
if (_internal_margin[SIDE_RIGHT] > 0.0f) {
right_internal_margin_with_h_separation += theme_cache.h_separation;
}
minsize.width += left_internal_margin_with_h_separation + right_internal_margin_with_h_separation; // The size after the internal element is stripped.
}
if (!expand_icon && p_icon.is_valid()) {
Size2 icon_size = _fit_icon_size(p_icon->get_size());
if (vertical_icon_alignment == VERTICAL_ALIGNMENT_CENTER) {
minsize.height = MAX(minsize.height, icon_size.height);
} else {
minsize.height += icon_size.height;
}
if (horizontal_icon_alignment != HORIZONTAL_ALIGNMENT_CENTER) {
minsize.width += icon_size.width;
if (!xl_text.is_empty() || !p_text.is_empty()) {
minsize.width += MAX(0, theme_cache.h_separation);
}
} else {
minsize.width = MAX(minsize.width, icon_size.width);
}
}
if (!xl_text.is_empty() || !p_text.is_empty()) {
Ref<Font> font = theme_cache.font;
float font_height = font->get_height(theme_cache.font_size);
if (vertical_icon_alignment == VERTICAL_ALIGNMENT_CENTER) {
minsize.height = MAX(font_height, minsize.height);
} else {
minsize.height += font_height;
}
}
return _get_largest_stylebox_size() + minsize;
}
void Button::_shape(Ref<TextParagraph> p_paragraph, String p_text) {
if (p_paragraph.is_null()) {
p_paragraph = text_buf;
}
if (p_text.is_empty()) {
p_text = xl_text;
}
p_paragraph->clear();
Ref<Font> font = theme_cache.font;
int font_size = theme_cache.font_size;
if (font.is_null() || font_size == 0) {
// Can't shape without a valid font and a non-zero size.
return;
}
BitField<TextServer::LineBreakFlag> autowrap_flags = TextServer::BREAK_MANDATORY;
switch (autowrap_mode) {
case TextServer::AUTOWRAP_WORD_SMART:
autowrap_flags = TextServer::BREAK_WORD_BOUND | TextServer::BREAK_ADAPTIVE | TextServer::BREAK_MANDATORY;
break;
case TextServer::AUTOWRAP_WORD:
autowrap_flags = TextServer::BREAK_WORD_BOUND | TextServer::BREAK_MANDATORY;
break;
case TextServer::AUTOWRAP_ARBITRARY:
autowrap_flags = TextServer::BREAK_GRAPHEME_BOUND | TextServer::BREAK_MANDATORY;
break;
case TextServer::AUTOWRAP_OFF:
break;
}
autowrap_flags = autowrap_flags | TextServer::BREAK_TRIM_EDGE_SPACES;
p_paragraph->set_break_flags(autowrap_flags);
if (text_direction == Control::TEXT_DIRECTION_INHERITED) {
p_paragraph->set_direction(is_layout_rtl() ? TextServer::DIRECTION_RTL : TextServer::DIRECTION_LTR);
} else {
p_paragraph->set_direction((TextServer::Direction)text_direction);
}
p_paragraph->add_string(p_text, font, font_size, language);
p_paragraph->set_text_overrun_behavior(overrun_behavior);
}
void Button::set_text_overrun_behavior(TextServer::OverrunBehavior p_behavior) {
if (overrun_behavior != p_behavior) {
bool need_update_cache = overrun_behavior == TextServer::OVERRUN_NO_TRIMMING || p_behavior == TextServer::OVERRUN_NO_TRIMMING;
overrun_behavior = p_behavior;
_shape();
if (need_update_cache) {
_queue_update_size_cache();
}
queue_redraw();
update_minimum_size();
}
}
TextServer::OverrunBehavior Button::get_text_overrun_behavior() const {
return overrun_behavior;
}
void Button::set_text(const String &p_text) {
if (text != p_text) {
text = p_text;
xl_text = atr(text);
_shape();
queue_redraw();
update_minimum_size();
}
}
String Button::get_text() const {
return text;
}
void Button::set_autowrap_mode(TextServer::AutowrapMode p_mode) {
if (autowrap_mode != p_mode) {
autowrap_mode = p_mode;
_shape();
queue_redraw();
update_minimum_size();
}
}
TextServer::AutowrapMode Button::get_autowrap_mode() const {
return autowrap_mode;
}
void Button::set_text_direction(Control::TextDirection p_text_direction) {
ERR_FAIL_COND((int)p_text_direction < -1 || (int)p_text_direction > 3);
if (text_direction != p_text_direction) {
text_direction = p_text_direction;
_shape();
queue_redraw();
}
}
Control::TextDirection Button::get_text_direction() const {
return text_direction;
}
void Button::set_language(const String &p_language) {
if (language != p_language) {
language = p_language;
_shape();
queue_redraw();
}
}
String Button::get_language() const {
return language;
}
void Button::set_icon(const Ref<Texture2D> &p_icon) {
if (icon == p_icon) {
return;
}
if (icon.is_valid()) {
icon->disconnect_changed(callable_mp(this, &Button::_texture_changed));
}
icon = p_icon;
if (icon.is_valid()) {
icon->connect_changed(callable_mp(this, &Button::_texture_changed));
}
queue_redraw();
update_minimum_size();
}
void Button::_texture_changed() {
queue_redraw();
update_minimum_size();
}
Ref<Texture2D> Button::get_icon() const {
return icon;
}
void Button::set_expand_icon(bool p_enabled) {
if (expand_icon != p_enabled) {
expand_icon = p_enabled;
_queue_update_size_cache();
queue_redraw();
update_minimum_size();
}
}
bool Button::is_expand_icon() const {
return expand_icon;
}
void Button::set_flat(bool p_enabled) {
if (flat != p_enabled) {
flat = p_enabled;
queue_redraw();
}
}
bool Button::is_flat() const {
return flat;
}
void Button::set_clip_text(bool p_enabled) {
if (clip_text != p_enabled) {
clip_text = p_enabled;
_queue_update_size_cache();
queue_redraw();
update_minimum_size();
}
}
bool Button::get_clip_text() const {
return clip_text;
}
void Button::set_text_alignment(HorizontalAlignment p_alignment) {
if (alignment != p_alignment) {
alignment = p_alignment;
queue_redraw();
}
}
HorizontalAlignment Button::get_text_alignment() const {
return alignment;
}
void Button::set_icon_alignment(HorizontalAlignment p_alignment) {
if (horizontal_icon_alignment == p_alignment) {
return;
}
horizontal_icon_alignment = p_alignment;
update_minimum_size();
queue_redraw();
}
void Button::set_vertical_icon_alignment(VerticalAlignment p_alignment) {
if (vertical_icon_alignment == p_alignment) {
return;
}
bool need_update_cache = vertical_icon_alignment == VERTICAL_ALIGNMENT_CENTER || p_alignment == VERTICAL_ALIGNMENT_CENTER;
vertical_icon_alignment = p_alignment;
if (need_update_cache) {
_queue_update_size_cache();
}
update_minimum_size();
queue_redraw();
}
HorizontalAlignment Button::get_icon_alignment() const {
return horizontal_icon_alignment;
}
VerticalAlignment Button::get_vertical_icon_alignment() const {
return vertical_icon_alignment;
}
void Button::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_text", "text"), &Button::set_text);
ClassDB::bind_method(D_METHOD("get_text"), &Button::get_text);
ClassDB::bind_method(D_METHOD("set_text_overrun_behavior", "overrun_behavior"), &Button::set_text_overrun_behavior);
ClassDB::bind_method(D_METHOD("get_text_overrun_behavior"), &Button::get_text_overrun_behavior);
ClassDB::bind_method(D_METHOD("set_autowrap_mode", "autowrap_mode"), &Button::set_autowrap_mode);
ClassDB::bind_method(D_METHOD("get_autowrap_mode"), &Button::get_autowrap_mode);
ClassDB::bind_method(D_METHOD("set_text_direction", "direction"), &Button::set_text_direction);
ClassDB::bind_method(D_METHOD("get_text_direction"), &Button::get_text_direction);
ClassDB::bind_method(D_METHOD("set_language", "language"), &Button::set_language);
ClassDB::bind_method(D_METHOD("get_language"), &Button::get_language);
ClassDB::bind_method(D_METHOD("set_button_icon", "texture"), &Button::set_icon);
ClassDB::bind_method(D_METHOD("get_button_icon"), &Button::get_icon);
ClassDB::bind_method(D_METHOD("set_flat", "enabled"), &Button::set_flat);
ClassDB::bind_method(D_METHOD("is_flat"), &Button::is_flat);
ClassDB::bind_method(D_METHOD("set_clip_text", "enabled"), &Button::set_clip_text);
ClassDB::bind_method(D_METHOD("get_clip_text"), &Button::get_clip_text);
ClassDB::bind_method(D_METHOD("set_text_alignment", "alignment"), &Button::set_text_alignment);
ClassDB::bind_method(D_METHOD("get_text_alignment"), &Button::get_text_alignment);
ClassDB::bind_method(D_METHOD("set_icon_alignment", "icon_alignment"), &Button::set_icon_alignment);
ClassDB::bind_method(D_METHOD("get_icon_alignment"), &Button::get_icon_alignment);
ClassDB::bind_method(D_METHOD("set_vertical_icon_alignment", "vertical_icon_alignment"), &Button::set_vertical_icon_alignment);
ClassDB::bind_method(D_METHOD("get_vertical_icon_alignment"), &Button::get_vertical_icon_alignment);
ClassDB::bind_method(D_METHOD("set_expand_icon", "enabled"), &Button::set_expand_icon);
ClassDB::bind_method(D_METHOD("is_expand_icon"), &Button::is_expand_icon);
ADD_PROPERTY(PropertyInfo(Variant::STRING, "text", PROPERTY_HINT_MULTILINE_TEXT), "set_text", "get_text");
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "icon", PROPERTY_HINT_RESOURCE_TYPE, "Texture2D"), "set_button_icon", "get_button_icon");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "flat"), "set_flat", "is_flat");
ADD_GROUP("Text Behavior", "");
ADD_PROPERTY(PropertyInfo(Variant::INT, "alignment", PROPERTY_HINT_ENUM, "Left,Center,Right"), "set_text_alignment", "get_text_alignment");
ADD_PROPERTY(PropertyInfo(Variant::INT, "text_overrun_behavior", PROPERTY_HINT_ENUM, "Trim Nothing,Trim Characters,Trim Words,Ellipsis,Word Ellipsis"), "set_text_overrun_behavior", "get_text_overrun_behavior");
ADD_PROPERTY(PropertyInfo(Variant::INT, "autowrap_mode", PROPERTY_HINT_ENUM, "Off,Arbitrary,Word,Word (Smart)"), "set_autowrap_mode", "get_autowrap_mode");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "clip_text"), "set_clip_text", "get_clip_text");
ADD_GROUP("Icon Behavior", "");
ADD_PROPERTY(PropertyInfo(Variant::INT, "icon_alignment", PROPERTY_HINT_ENUM, "Left,Center,Right"), "set_icon_alignment", "get_icon_alignment");
ADD_PROPERTY(PropertyInfo(Variant::INT, "vertical_icon_alignment", PROPERTY_HINT_ENUM, "Top,Center,Bottom"), "set_vertical_icon_alignment", "get_vertical_icon_alignment");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "expand_icon"), "set_expand_icon", "is_expand_icon");
ADD_GROUP("BiDi", "");
ADD_PROPERTY(PropertyInfo(Variant::INT, "text_direction", PROPERTY_HINT_ENUM, "Auto,Left-to-Right,Right-to-Left,Inherited"), "set_text_direction", "get_text_direction");
ADD_PROPERTY(PropertyInfo(Variant::STRING, "language", PROPERTY_HINT_LOCALE_ID, ""), "set_language", "get_language");
BIND_THEME_ITEM(Theme::DATA_TYPE_STYLEBOX, Button, normal);
BIND_THEME_ITEM(Theme::DATA_TYPE_STYLEBOX, Button, normal_mirrored);
BIND_THEME_ITEM(Theme::DATA_TYPE_STYLEBOX, Button, pressed);
BIND_THEME_ITEM(Theme::DATA_TYPE_STYLEBOX, Button, pressed_mirrored);
BIND_THEME_ITEM(Theme::DATA_TYPE_STYLEBOX, Button, hover);
BIND_THEME_ITEM(Theme::DATA_TYPE_STYLEBOX, Button, hover_mirrored);
BIND_THEME_ITEM(Theme::DATA_TYPE_STYLEBOX, Button, hover_pressed);
BIND_THEME_ITEM(Theme::DATA_TYPE_STYLEBOX, Button, hover_pressed_mirrored);
BIND_THEME_ITEM(Theme::DATA_TYPE_STYLEBOX, Button, disabled);
BIND_THEME_ITEM(Theme::DATA_TYPE_STYLEBOX, Button, disabled_mirrored);
BIND_THEME_ITEM(Theme::DATA_TYPE_STYLEBOX, Button, focus);
BIND_THEME_ITEM(Theme::DATA_TYPE_COLOR, Button, font_color);
BIND_THEME_ITEM(Theme::DATA_TYPE_COLOR, Button, font_focus_color);
BIND_THEME_ITEM(Theme::DATA_TYPE_COLOR, Button, font_pressed_color);
BIND_THEME_ITEM(Theme::DATA_TYPE_COLOR, Button, font_hover_color);
BIND_THEME_ITEM(Theme::DATA_TYPE_COLOR, Button, font_hover_pressed_color);
BIND_THEME_ITEM(Theme::DATA_TYPE_COLOR, Button, font_disabled_color);
BIND_THEME_ITEM(Theme::DATA_TYPE_FONT, Button, font);
BIND_THEME_ITEM(Theme::DATA_TYPE_FONT_SIZE, Button, font_size);
BIND_THEME_ITEM(Theme::DATA_TYPE_CONSTANT, Button, outline_size);
BIND_THEME_ITEM(Theme::DATA_TYPE_COLOR, Button, font_outline_color);
BIND_THEME_ITEM(Theme::DATA_TYPE_COLOR, Button, icon_normal_color);
BIND_THEME_ITEM(Theme::DATA_TYPE_COLOR, Button, icon_focus_color);
BIND_THEME_ITEM(Theme::DATA_TYPE_COLOR, Button, icon_pressed_color);
BIND_THEME_ITEM(Theme::DATA_TYPE_COLOR, Button, icon_hover_color);
BIND_THEME_ITEM(Theme::DATA_TYPE_COLOR, Button, icon_hover_pressed_color);
BIND_THEME_ITEM(Theme::DATA_TYPE_COLOR, Button, icon_disabled_color);
BIND_THEME_ITEM(Theme::DATA_TYPE_ICON, Button, icon);
BIND_THEME_ITEM(Theme::DATA_TYPE_CONSTANT, Button, h_separation);
BIND_THEME_ITEM(Theme::DATA_TYPE_CONSTANT, Button, icon_max_width);
BIND_THEME_ITEM(Theme::DATA_TYPE_CONSTANT, Button, align_to_largest_stylebox);
}
Button::Button(const String &p_text) {
text_buf.instantiate();
text_buf->set_break_flags(TextServer::BREAK_MANDATORY | TextServer::BREAK_TRIM_EDGE_SPACES);
set_mouse_filter(MOUSE_FILTER_STOP);
set_text(p_text);
}
Button::~Button() {
}
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