Add STRETCH_KEEP_ASPECT_COVERED to TextureRect StretchMode

Make TextureButton to the same resize behavior with TextureRect

1 files changed, 109 insertions, 37 deletions

diff --git a/scene/gui/texture_button.cpp b/scene/gui/texture_button.cpp
index 03e37e9d9f..fb6262eff8 100644
--- a/scene/gui/texture_button.cpp
+++ b/scene/gui/texture_button.cpp
@@ -28,40 +28,35 @@
 /*************************************************************************/
 #include "texture_button.h"
 
-
 Size2 TextureButton::get_minimum_size() const {
 
-	Size2 rscale;
-	if (normal.is_null()) {
-		if (pressed.is_null()) {
-			if (hover.is_null())
-				if (click_mask.is_null())
-					rscale= Size2();
+	Size2 rscale = Control::get_minimum_size();
+
+	if (!expand) {
+		if (normal.is_null()) {
+			if (pressed.is_null()) {
+				if (hover.is_null())
+					if (click_mask.is_null())
+						rscale= Size2();
+					else
+						rscale= click_mask->get_size();
 				else
-					rscale= click_mask->get_size();
-			else
-				rscale= hover->get_size();
-		} else
-			rscale=pressed->get_size();
+					rscale= hover->get_size();
+			} else
+				rscale=pressed->get_size();
 
-	} else
-		rscale= normal->get_size();
+		} else
+			rscale= normal->get_size();
+	}
 
-	return rscale*scale.abs();
+	return rscale.abs();
 }
 
-
 bool TextureButton::has_point(const Point2& p_point) const {
 
-	if (scale[0] == 0 || scale[1] == 0) {
-		return false;
-	}
-
-	Point2 ppos = p_point/scale.abs();
-
 	if (click_mask.is_valid()) {
 
-		Point2i p =ppos;
+		Point2i p =p_point;
 		if (p.x<0 || p.x>=click_mask->get_size().width || p.y<0 || p.y>=click_mask->get_size().height)
 			return false;
 
@@ -119,17 +114,67 @@ void TextureButton::_notification(int p_what) {
 			}
 
 			if (texdraw.is_valid()) {
-				Rect2 drect(Point2(),texdraw->get_size()*scale);
-				draw_texture_rect(texdraw,drect,false);
-
+				Point2 ofs;
+				Size2 size = texdraw->get_size();
+				Rect2 tex_regin = Rect2(Point2(), texdraw->get_size());
+				bool tile = false;
+				if (expand) {
+					switch (stretch_mode) {
+						case StretchMode::STRETCH_KEEP:
+							size = texdraw->get_size();
+							break;
+						case StretchMode::STRETCH_SCALE_ON_EXPAND:
+						case StretchMode::STRETCH_SCALE:
+							size = get_size();
+							break;
+						case StretchMode::STRETCH_TILE:
+							size = get_size();
+							tile = true;
+							break;
+						case StretchMode::STRETCH_KEEP_CENTERED:
+							ofs = (get_size() - texdraw->get_size())/2;
+							size = texdraw->get_size();
+							break;
+						case StretchMode::STRETCH_KEEP_ASPECT_CENTERED:
+						case StretchMode::STRETCH_KEEP_ASPECT: {
+							Size2 _size=get_size();
+							float tex_width = texdraw->get_width() * _size.height / texdraw->get_height();
+							float tex_height = _size.height;
+
+							if (tex_width > _size.width) {
+								tex_width = _size.width;
+								tex_height = texdraw->get_height() * tex_width / texdraw->get_width();
+							}
+
+							if (stretch_mode==StretchMode::STRETCH_KEEP_ASPECT_CENTERED) {
+								ofs.x = (_size.width - tex_width)/2;
+								ofs.y = (_size.height - tex_height)/2;
+							}
+							size.width = tex_width;
+							size.height = tex_height;
+						} break;
+						case StretchMode::STRETCH_KEEP_ASPECT_COVERED:{
+							size = get_size();
+							Size2 tex_size = texdraw->get_size();
+							Size2 scaleSize(size.width/tex_size.width, size.height/tex_size.height);
+							float scale = scaleSize.width > scaleSize.height? scaleSize.width : scaleSize.height;
+							Size2 scaledTexSize = tex_size * scale;
+							Point2 ofs = ((scaledTexSize - size) / scale).abs() / 2.0f;
+							tex_regin = Rect2(ofs, size/scale);
+						} break;
+					}
+				}
+				if (tile)
+					draw_texture_rect(texdraw,Rect2(ofs,size),tile);
+				else
+					draw_texture_rect_region(texdraw, Rect2(ofs, size), tex_regin);
 			}
 			if (has_focus() && focused.is_valid()) {
 
-				Rect2 drect(Point2(),focused->get_size()*scale);
+				Rect2 drect(Point2(), get_size());
 				draw_texture_rect(focused,drect,false);
 
 			};
-
 		} break;
 	}
 }
@@ -142,7 +187,8 @@ void TextureButton::_bind_methods() {
 	ClassDB::bind_method(_MD("set_disabled_texture","texture:Texture"),&TextureButton::set_disabled_texture);
 	ClassDB::bind_method(_MD("set_focused_texture","texture:Texture"),&TextureButton::set_focused_texture);
 	ClassDB::bind_method(_MD("set_click_mask","mask:BitMap"),&TextureButton::set_click_mask);
-	ClassDB::bind_method(_MD("set_texture_scale","scale"),&TextureButton::set_texture_scale);
+	ClassDB::bind_method(_MD("set_expand","p_expand"),&TextureButton::set_expand);
+	ClassDB::bind_method(_MD("set_stretch_mode","p_mode"),&TextureButton::set_stretch_mode);
 
 	ClassDB::bind_method(_MD("get_normal_texture:Texture"),&TextureButton::get_normal_texture);
 	ClassDB::bind_method(_MD("get_pressed_texture:Texture"),&TextureButton::get_pressed_texture);
@@ -150,7 +196,8 @@ void TextureButton::_bind_methods() {
 	ClassDB::bind_method(_MD("get_disabled_texture:Texture"),&TextureButton::get_disabled_texture);
 	ClassDB::bind_method(_MD("get_focused_texture:Texture"),&TextureButton::get_focused_texture);
 	ClassDB::bind_method(_MD("get_click_mask:BitMap"),&TextureButton::get_click_mask);
-	ClassDB::bind_method(_MD("get_texture_scale"),&TextureButton::get_texture_scale);
+	ClassDB::bind_method(_MD("get_expand"),&TextureButton::get_expand);
+	ClassDB::bind_method(_MD("get_stretch_mode"),&TextureButton::get_stretch_mode);
 
 	ADD_GROUP("Textures","texture_");
 	ADD_PROPERTYNZ(PropertyInfo(Variant::OBJECT,"texture_normal",PROPERTY_HINT_RESOURCE_TYPE,"Texture"), _SCS("set_normal_texture"), _SCS("get_normal_texture"));
@@ -159,7 +206,25 @@ void TextureButton::_bind_methods() {
 	ADD_PROPERTYNZ(PropertyInfo(Variant::OBJECT,"texture_disabled",PROPERTY_HINT_RESOURCE_TYPE,"Texture"), _SCS("set_disabled_texture"), _SCS("get_disabled_texture"));
 	ADD_PROPERTYNZ(PropertyInfo(Variant::OBJECT,"texture_focused",PROPERTY_HINT_RESOURCE_TYPE,"Texture"), _SCS("set_focused_texture"), _SCS("get_focused_texture"));
 	ADD_PROPERTYNZ(PropertyInfo(Variant::OBJECT,"texture_click_mask",PROPERTY_HINT_RESOURCE_TYPE,"BitMap"), _SCS("set_click_mask"), _SCS("get_click_mask")) ;
-	ADD_PROPERTYNO(PropertyInfo(Variant::VECTOR2,"texture_scale",PROPERTY_HINT_RANGE,"0.01,1024,0.01"), _SCS("set_texture_scale"), _SCS("get_texture_scale"));
+	ADD_PROPERTYNZ(PropertyInfo(Variant::BOOL,"expand",PROPERTY_HINT_RESOURCE_TYPE,"bool"), _SCS("set_expand"), _SCS("get_expand")) ;
+	ADD_PROPERTYNO(PropertyInfo(Variant::INT,"stretch_mode",PROPERTY_HINT_ENUM,"Scale On Expand (Compat),Scale,Tile,Keep,Keep Centered,Keep Aspect,Keep Aspect Centered,Keep Aspect Covered"), _SCS("set_stretch_mode"), _SCS("get_stretch_mode"));
+
+	const int STRETCH_SCALE_ON_EXPAND = StretchMode::STRETCH_SCALE_ON_EXPAND;
+	const int STRETCH_SCALE = StretchMode::STRETCH_SCALE;
+	const int STRETCH_TILE = StretchMode::STRETCH_TILE;
+	const int STRETCH_KEEP = StretchMode::STRETCH_KEEP;
+	const int STRETCH_KEEP_CENTERED = StretchMode::STRETCH_KEEP_CENTERED;
+	const int STRETCH_KEEP_ASPECT = StretchMode::STRETCH_KEEP_ASPECT;
+	const int STRETCH_KEEP_ASPECT_CENTERED = StretchMode::STRETCH_KEEP_ASPECT_CENTERED;
+	const int STRETCH_KEEP_ASPECT_COVERED = StretchMode::STRETCH_KEEP_ASPECT_COVERED;
+	BIND_CONSTANT(STRETCH_SCALE_ON_EXPAND);
+	BIND_CONSTANT(STRETCH_SCALE);
+	BIND_CONSTANT(STRETCH_TILE);
+	BIND_CONSTANT(STRETCH_KEEP);
+	BIND_CONSTANT(STRETCH_KEEP_CENTERED);
+	BIND_CONSTANT(STRETCH_KEEP_ASPECT);
+	BIND_CONSTANT(STRETCH_KEEP_ASPECT_CENTERED);
+	BIND_CONSTANT(STRETCH_KEEP_ASPECT_COVERED);
 
 }
 
@@ -227,19 +292,26 @@ void TextureButton::set_focused_texture(const Ref<Texture>& p_focused) {
 	focused = p_focused;
 };
 
-void TextureButton::set_texture_scale(Size2 p_scale) {
+bool TextureButton::get_expand() const {
+	return expand;
+}
 
-	scale=p_scale;
+void TextureButton::set_expand(bool p_expand) {
+	expand = p_expand;
 	minimum_size_changed();
 	update();
 }
 
-Size2 TextureButton::get_texture_scale() const{
+void TextureButton::set_stretch_mode(TextureButton::StretchMode p_mode) {
+	stretch_mode = p_mode;
+	update();
+}
 
-	return scale;
+TextureButton::StretchMode TextureButton::get_stretch_mode() const {
+	return stretch_mode;
 }
 
 TextureButton::TextureButton() {
-	scale=Size2(1.0, 1.0);
-
+	expand = false;
+	stretch_mode = StretchMode::STRETCH_SCALE_ON_EXPAND;
 }