From e6d39113c253d910ea951b535bf0f2c3a7d95fde Mon Sep 17 00:00:00 2001
From: Tanasart <tanasart_pt@outlook.co.th>
Date: Sat, 27 Jul 2024 12:36:17 +0700
Subject: [PATCH] - [Path] Previewing node now set proper preview area.

---
 scripts/__bbox/__bbox.gml               | 14 ++++++++++++++
 scripts/node_path/node_path.gml         |  7 +++++--
 scripts/panel_preview/panel_preview.gml | 20 +++++++++++++++-----
 3 files changed, 34 insertions(+), 7 deletions(-)

diff --git a/scripts/__bbox/__bbox.gml b/scripts/__bbox/__bbox.gml
index 310c7015e..9fc8fbbf1 100644
--- a/scripts/__bbox/__bbox.gml
+++ b/scripts/__bbox/__bbox.gml
@@ -102,6 +102,20 @@ function __BBOX() constructor {
 		return self;
 	}
 	
+	static fromBoundingBox = function(box) {
+		self.x0 = box.minx; 
+		self.x1 = box.maxx; 
+		self.y0 = box.miny; 
+		self.y1 = box.maxy; 
+	
+		self.xc = (x0 + x1) / 2; 
+		self.yc = (y0 + y1) / 2;
+		self.w  = x1 - x0;
+		self.h  = y1 - y0;
+		
+		return self;
+	}
+	
 	static toSquare = function() {
 		var _span = min(w, h) / 2;
 		
diff --git a/scripts/node_path/node_path.gml b/scripts/node_path/node_path.gml
index 279cd0815..ad5ffa2e6 100644
--- a/scripts/node_path/node_path.gml
+++ b/scripts/node_path/node_path.gml
@@ -856,8 +856,9 @@ function Node_Path(_x, _y, _group = noone) : Node(_x, _y, _group) constructor {
 			lengthAccs[i] = lengthTotal;
 		}
 		
-		var minx   = boundary.minx - 8, miny = boundary.miny - 8;
-		var maxx   = boundary.maxx + 8, maxy = boundary.maxy + 8;
+		var pad    = min(8, abs(boundary.maxx - boundary.minx) * 0.1, abs(boundary.maxy - boundary.miny) * 0.1);
+		var minx   = boundary.minx - pad, miny = boundary.miny - pad;
+		var maxx   = boundary.maxx + pad, maxy = boundary.maxy + pad;
 		var rngx   = maxx - minx,   rngy = maxy - miny;
 		var prev_s = 128;
 		var _surf  = surface_create(prev_s, prev_s);
@@ -1050,4 +1051,6 @@ function Node_Path(_x, _y, _group = noone) : Node(_x, _y, _group) constructor {
 			gpu_set_tex_filter(false);
 		}
 	} #endregion
+	
+	static getPreviewBoundingBox = function() { return BBOX().fromBoundingBox(boundary); }
 }
\ No newline at end of file
diff --git a/scripts/panel_preview/panel_preview.gml b/scripts/panel_preview/panel_preview.gml
index 2b5f96231..0156ecef7 100644
--- a/scripts/panel_preview/panel_preview.gml
+++ b/scripts/panel_preview/panel_preview.gml
@@ -633,20 +633,30 @@ function Panel_Preview() : PanelContent() constructor {
 		canvas_hover = point_in_rectangle(mx, my, 0, toolbar_height, w, h - toolbar_height);
 	} #endregion
 	
-	function fullView() { #region
+	function fullView() {
 		var bbox = noone;
 		
 		var node = getNodePreview();
 		if(node != noone) bbox = node.getPreviewBoundingBox();
 		if(bbox == noone) bbox = BBOX().fromWH(0, 0, PROJECT.attributes.surface_dimension[0], PROJECT.attributes.surface_dimension[1]);
 		
+		var _x = bbox.x0, _y = bbox.y0;
+		var _w = bbox.w,  _h = bbox.h;
+		
+		if(_w == 0 || _h == 0) {
+			_x = 0;
+			_y = 0;
+			_w = DEF_SURF_W;
+			_h = DEF_SURF_H;
+		}
+		
 		var tl = tool_side_draw_l * 40;
 		var tr = tool_side_draw_r * 40;
-		var ss = min((w - 32 - tl - tr) / bbox.w, (h - 32 - toolbar_height * 2) / bbox.h);
+		var ss = min((w - 32 - tl - tr) / _w, (h - 32 - toolbar_height * 2) / _h);
 		canvas_s = ss;
-		canvas_x = w / 2 - bbox.w * canvas_s / 2 - bbox.x0 * canvas_s + (tl - tr) / 2;
-		canvas_y = h / 2 - bbox.h * canvas_s / 2 - bbox.y0 * canvas_s;
-	} #endregion
+		canvas_x = w / 2 - _w * canvas_s / 2 - _x * canvas_s + (tl - tr) / 2;
+		canvas_y = h / 2 - _h * canvas_s / 2 - _y * canvas_s;
+	}
 	
 	function drawNodeChannel(_x, _y) { #region
 		var _node = getNodePreview();