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Implement vertical icon alignment for buttons

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Florian Kothmeier 2023-03-03 21:21:41 +01:00
parent 9f12e7b52d
commit 68b9fa71a0
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GPG key ID: 1B676CDB21FBF963
3 changed files with 65 additions and 14 deletions
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5
doc/classes/Button.xml
View file

@ -58,7 +58,7 @@
To edit margin and spacing of the icon, use [theme_item h_separation] theme property and [code]content_margin_*[/code] properties of the used [StyleBox]es.
</member>
<member name="icon_alignment" type="int" setter="set_icon_alignment" getter="get_icon_alignment" enum="HorizontalAlignment" default="0">
Specifies if the icon should be aligned to the left, right, or center of a button. Uses the same [enum HorizontalAlignment] constants as the text alignment. If centered, text will draw on top of the icon.
Specifies if the icon should be aligned horizontally to the left, right, or center of a button. Uses the same [enum HorizontalAlignment] constants as the text alignment. If centered horizontally and vertically, text will draw on top of the icon.
</member>
<member name="language" type="String" setter="set_language" getter="get_language" default="&quot;&quot;">
Language code used for line-breaking and text shaping algorithms, if left empty current locale is used instead.
@ -72,6 +72,9 @@
<member name="text_overrun_behavior" type="int" setter="set_text_overrun_behavior" getter="get_text_overrun_behavior" enum="TextServer.OverrunBehavior" default="0">
Sets the clipping behavior when the text exceeds the node's bounding rectangle. See [enum TextServer.OverrunBehavior] for a description of all modes.
</member>
<member name="vertical_icon_alignment" type="int" setter="set_vertical_icon_alignment" getter="get_vertical_icon_alignment" enum="VerticalAlignment" default="1">
Specifies if the icon should be aligned vertically to the top, bottom, or center of a button. Uses the same [enum VerticalAlignment] constants as the text alignment. If centered horizontally and vertically, text will draw on top of the icon.
</member>
</members>
<theme_items>
<theme_item name="font_color" data_type="color" type="Color" default="Color(0.875, 0.875, 0.875, 1)">

69
scene/gui/button.cpp
View file

@ -233,13 +233,13 @@ void Button::_notification(int p_what) {
}
Rect2 icon_region;
HorizontalAlignment icon_align_rtl_checked = icon_alignment;
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 (rtl) {
if (icon_alignment == HORIZONTAL_ALIGNMENT_RIGHT) {
if (horizontal_icon_alignment == HORIZONTAL_ALIGNMENT_RIGHT) {
icon_align_rtl_checked = HORIZONTAL_ALIGNMENT_LEFT;
} else if (icon_alignment == HORIZONTAL_ALIGNMENT_LEFT) {
} else if (horizontal_icon_alignment == HORIZONTAL_ALIGNMENT_LEFT) {
icon_align_rtl_checked = HORIZONTAL_ALIGNMENT_RIGHT;
}
if (alignment == HORIZONTAL_ALIGNMENT_RIGHT) {
@ -251,6 +251,14 @@ void Button::_notification(int p_what) {
if (!_icon.is_null()) {
int valign = size.height - style->get_minimum_size().y;
int voffset = 0;
Size2 icon_size = _icon->get_size();
// Fix vertical size.
if (vertical_icon_alignment != VERTICAL_ALIGNMENT_CENTER) {
valign -= text_buf->get_size().height;
}
float icon_ofs_region = 0.0;
Point2 style_offset;
if (icon_align_rtl_checked == HORIZONTAL_ALIGNMENT_LEFT) {
@ -268,7 +276,6 @@ void Button::_notification(int p_what) {
}
style_offset.y = style->get_margin(SIDE_TOP);
Size2 icon_size = _icon->get_size();
if (expand_icon) {
Size2 _size = get_size() - style->get_offset() * 2;
int icon_text_separation = text.is_empty() ? 0 : theme_cache.h_separation;
@ -276,6 +283,9 @@ void Button::_notification(int p_what) {
if (!clip_text && icon_align_rtl_checked != HORIZONTAL_ALIGNMENT_CENTER) {
_size.width -= text_buf->get_size().width;
}
if (vertical_icon_alignment != VERTICAL_ALIGNMENT_CENTER) {
_size.height -= text_buf->get_size().height;
}
float icon_width = _icon->get_width() * _size.height / _icon->get_height();
float icon_height = _size.height;
@ -288,12 +298,19 @@ void Button::_notification(int p_what) {
}
icon_size = _fit_icon_size(icon_size);
if (vertical_icon_alignment == VERTICAL_ALIGNMENT_TOP) {
voffset = -(valign - icon_size.y) / 2;
}
if (vertical_icon_alignment == VERTICAL_ALIGNMENT_BOTTOM) {
voffset = (valign - icon_size.y) / 2 + text_buf->get_size().y;
}
if (icon_align_rtl_checked == HORIZONTAL_ALIGNMENT_LEFT) {
icon_region = Rect2(style_offset + Point2(icon_ofs_region, Math::floor((valign - icon_size.y) * 0.5)), icon_size);
icon_region = Rect2(style_offset + Point2(icon_ofs_region, voffset + Math::floor((valign - icon_size.y) * 0.5)), icon_size);
} else if (icon_align_rtl_checked == HORIZONTAL_ALIGNMENT_CENTER) {
icon_region = Rect2(style_offset + Point2(icon_ofs_region + Math::floor((size.x - icon_size.x) * 0.5), Math::floor((valign - icon_size.y) * 0.5)), icon_size);
icon_region = Rect2(style_offset + Point2(icon_ofs_region + Math::floor((size.x - icon_size.x) * 0.5), voffset + Math::floor((valign - icon_size.y) * 0.5)), icon_size);
} else {
icon_region = Rect2(style_offset + Point2(icon_ofs_region + size.x - icon_size.x, Math::floor((valign - icon_size.y) * 0.5)), icon_size);
icon_region = Rect2(style_offset + Point2(icon_ofs_region + size.x - icon_size.x, voffset + Math::floor((valign - icon_size.y) * 0.5)), icon_size);
}
if (icon_region.size.width > 0) {
@ -320,6 +337,13 @@ void Button::_notification(int p_what) {
Point2 text_ofs = (size - style->get_minimum_size() - icon_ofs - text_buf->get_size() - Point2(_internal_margin[SIDE_RIGHT] - _internal_margin[SIDE_LEFT], 0)) / 2.0;
if (vertical_icon_alignment == VERTICAL_ALIGNMENT_TOP) {
text_ofs.y += icon_region.size.height / 2;
}
if (vertical_icon_alignment == VERTICAL_ALIGNMENT_BOTTOM) {
text_ofs.y -= icon_region.size.height / 2;
}
text_buf->set_alignment(align_rtl_checked);
text_buf->set_width(text_width);
switch (align_rtl_checked) {
@ -395,9 +419,13 @@ Size2 Button::get_minimum_size_for_text_and_icon(const String &p_text, Ref<Textu
if (!expand_icon && p_icon.is_valid()) {
Size2 icon_size = _fit_icon_size(p_icon->get_size());
minsize.height = MAX(minsize.height, icon_size.height);
if (vertical_icon_alignment == VERTICAL_ALIGNMENT_CENTER) {
minsize.height = MAX(minsize.height, icon_size.height);
} else {
minsize.height += icon_size.height;
}
if (icon_alignment != HORIZONTAL_ALIGNMENT_CENTER) {
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);
@ -410,7 +438,11 @@ Size2 Button::get_minimum_size_for_text_and_icon(const String &p_text, Ref<Textu
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);
minsize.height = MAX(font_height, minsize.height);
if (vertical_icon_alignment == VERTICAL_ALIGNMENT_CENTER) {
minsize.height = MAX(font_height, minsize.height);
} else {
minsize.height += font_height;
}
}
return theme_cache.normal->get_minimum_size() + minsize;
@ -556,13 +588,23 @@ HorizontalAlignment Button::get_text_alignment() const {
}
void Button::set_icon_alignment(HorizontalAlignment p_alignment) {
icon_alignment = p_alignment;
horizontal_icon_alignment = p_alignment;
update_minimum_size();
queue_redraw();
}
void Button::set_vertical_icon_alignment(VerticalAlignment p_alignment) {
vertical_icon_alignment = p_alignment;
update_minimum_size();
queue_redraw();
}
HorizontalAlignment Button::get_icon_alignment() const {
return icon_alignment;
return horizontal_icon_alignment;
}
VerticalAlignment Button::get_vertical_icon_alignment() const {
return vertical_icon_alignment;
}
void Button::_bind_methods() {
@ -584,6 +626,8 @@ void Button::_bind_methods() {
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);
@ -598,6 +642,7 @@ void Button::_bind_methods() {
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", "");

5
scene/gui/button.h
View file

@ -51,7 +51,8 @@ private:
bool expand_icon = false;
bool clip_text = false;
HorizontalAlignment alignment = HORIZONTAL_ALIGNMENT_CENTER;
HorizontalAlignment icon_alignment = HORIZONTAL_ALIGNMENT_LEFT;
HorizontalAlignment horizontal_icon_alignment = HORIZONTAL_ALIGNMENT_LEFT;
VerticalAlignment vertical_icon_alignment = VERTICAL_ALIGNMENT_CENTER;
float _internal_margin[4] = {};
struct ThemeCache {
@ -135,7 +136,9 @@ public:
HorizontalAlignment get_text_alignment() const;
void set_icon_alignment(HorizontalAlignment p_alignment);
void set_vertical_icon_alignment(VerticalAlignment p_alignment);
HorizontalAlignment get_icon_alignment() const;
VerticalAlignment get_vertical_icon_alignment() const;
Button(const String &p_text = String());
~Button();