From dd38d299512f9fcb29459ec372073061b65d9413 Mon Sep 17 00:00:00 2001
From: Aliaksandr Dziarkach
 <18146690+AliaksandrDziarkach@users.noreply.github.com>
Date: Fri, 4 Oct 2024 13:08:45 +0300
Subject: [PATCH] Backmerge: #2444 - Preview: the thickness of the arrow is
 incorrect when saving to png(svg) (#2488)

---
 .../ref/rendering/render_reactions.py.out     |   2 +
 .../tests/rendering/reactions/issue_2444.ket  | 196 ++++++++++++++++++
 .../tests/rendering/ref/linux/issue_2444.png  | Bin 0 -> 3733 bytes
 .../tests/rendering/ref/mac/issue_2444.png    | Bin 0 -> 3904 bytes
 .../tests/rendering/ref/win/issue_2444.png    | Bin 0 -> 3197 bytes
 .../tests/rendering/render_reactions.py       |  13 ++
 core/render2d/src/render_common.cpp           |   6 +-
 7 files changed, 216 insertions(+), 1 deletion(-)
 create mode 100644 api/tests/integration/tests/rendering/reactions/issue_2444.ket
 create mode 100644 api/tests/integration/tests/rendering/ref/linux/issue_2444.png
 create mode 100644 api/tests/integration/tests/rendering/ref/mac/issue_2444.png
 create mode 100644 api/tests/integration/tests/rendering/ref/win/issue_2444.png

diff --git a/api/tests/integration/ref/rendering/render_reactions.py.out b/api/tests/integration/ref/rendering/render_reactions.py.out
index 5cd739d7a8..6e83fd63a8 100644
--- a/api/tests/integration/ref/rendering/render_reactions.py.out
+++ b/api/tests/integration/ref/rendering/render_reactions.py.out
@@ -9,3 +9,5 @@ epoxy.png rendering status: OK
 Done
 issue 2457 wrong chiral label position
 issue_2457.png rendering status: OK
+issue 2444 wrong arrow and plus width
+issue_2444.png rendering status: OK
diff --git a/api/tests/integration/tests/rendering/reactions/issue_2444.ket b/api/tests/integration/tests/rendering/reactions/issue_2444.ket
new file mode 100644
index 0000000000..416cd10a95
--- /dev/null
+++ b/api/tests/integration/tests/rendering/reactions/issue_2444.ket
@@ -0,0 +1,196 @@
+{
+    "root": {
+        "nodes": [
+            {
+                "$ref": "mol0"
+            },
+            {
+                "$ref": "mol1"
+            },
+            {
+                "$ref": "mol2"
+            },
+            {
+                "$ref": "mol3"
+            },
+            {
+                "type": "arrow",
+                "data": {
+                    "mode": "equilibrium-filled-half-bow",
+                    "pos": [
+                        {
+                            "x": 21.700001256913012,
+                            "y": -10.68125,
+                            "z": 0
+                        },
+                        {
+                            "x": 23.700000753998914,
+                            "y": -10.68125,
+                            "z": 0
+                        }
+                    ]
+                }
+            },
+            {
+                "type": "plus",
+                "location": [
+                    18.45000140359629,
+                    -10.68125,
+                    0
+                ],
+                "prop": {}
+            },
+            {
+                "type": "plus",
+                "location": [
+                    26.94999941522297,
+                    -10.68125,
+                    0
+                ],
+                "prop": {}
+            }
+        ],
+        "connections": [],
+        "templates": []
+    },
+    "mol0": {
+        "type": "molecule",
+        "atoms": [
+            {
+                "label": "C",
+                "location": [
+                    16.200001485086997,
+                    -10.68125,
+                    0
+                ]
+            },
+            {
+                "label": "C",
+                "location": [
+                    17.20000134538864,
+                    -10.68125,
+                    0
+                ]
+            }
+        ],
+        "bonds": [
+            {
+                "type": 1,
+                "atoms": [
+                    0,
+                    1
+                ]
+            }
+        ],
+        "stereoFlagPosition": {
+            "x": 17.20000134538864,
+            "y": 9.68125,
+            "z": 0
+        }
+    },
+    "mol1": {
+        "type": "molecule",
+        "atoms": [
+            {
+                "label": "C",
+                "location": [
+                    19.70000116378077,
+                    -10.68125,
+                    0
+                ]
+            },
+            {
+                "label": "C",
+                "location": [
+                    20.70000121034689,
+                    -10.68125,
+                    0
+                ]
+            }
+        ],
+        "bonds": [
+            {
+                "type": 1,
+                "atoms": [
+                    0,
+                    1
+                ]
+            }
+        ],
+        "stereoFlagPosition": {
+            "x": 20.70000121034689,
+            "y": 9.68125,
+            "z": 0
+        }
+    },
+    "mol2": {
+        "type": "molecule",
+        "atoms": [
+            {
+                "label": "C",
+                "location": [
+                    24.700000800565036,
+                    -10.68125,
+                    0
+                ]
+            },
+            {
+                "label": "C",
+                "location": [
+                    25.700000847131154,
+                    -10.68125,
+                    0
+                ]
+            }
+        ],
+        "bonds": [
+            {
+                "type": 1,
+                "atoms": [
+                    0,
+                    1
+                ]
+            }
+        ],
+        "stereoFlagPosition": {
+            "x": 25.700000847131154,
+            "y": 9.68125,
+            "z": 0
+        }
+    },
+    "mol3": {
+        "type": "molecule",
+        "atoms": [
+            {
+                "label": "C",
+                "location": [
+                    28.199997983314788,
+                    -10.68125,
+                    0
+                ]
+            },
+            {
+                "label": "C",
+                "location": [
+                    29.19999802988091,
+                    -10.68125,
+                    0
+                ]
+            }
+        ],
+        "bonds": [
+            {
+                "type": 1,
+                "atoms": [
+                    0,
+                    1
+                ]
+            }
+        ],
+        "stereoFlagPosition": {
+            "x": 29.19999802988091,
+            "y": 9.68125,
+            "z": 0
+        }
+    }
+}
\ No newline at end of file
diff --git a/api/tests/integration/tests/rendering/ref/linux/issue_2444.png b/api/tests/integration/tests/rendering/ref/linux/issue_2444.png
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diff --git a/api/tests/integration/tests/rendering/ref/win/issue_2444.png b/api/tests/integration/tests/rendering/ref/win/issue_2444.png
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diff --git a/api/tests/integration/tests/rendering/render_reactions.py b/api/tests/integration/tests/rendering/render_reactions.py
index 82c634dc7e..26ad2380f8 100644
--- a/api/tests/integration/tests/rendering/render_reactions.py
+++ b/api/tests/integration/tests/rendering/render_reactions.py
@@ -80,6 +80,19 @@ def renderRxnfile(filename, outfile):
 renderer.renderToFile(rxn, joinPathPy("out/" + png_fname, __file__))
 print(checkImageSimilarity(png_fname))
 
+print("issue 2444 wrong arrow and plus width")
+indigo.resetOptions()
+indigo.setOption("ignore-stereochemistry-errors", "true")
+indigo.setOption("render-background-color", "255, 255, 255")
+indigo.setOption("render-output-format", "png")
+indigo.setOption("render-bond-thickness", "10")
+fname = "issue_2444"
+png_fname = fname + ".png"
+ket_fname = joinPathPy("reactions/%s.ket" % fname, __file__)
+rxn = indigo.loadReactionFromFile(ket_fname)
+renderer.renderToFile(rxn, joinPathPy("out/" + png_fname, __file__))
+print(checkImageSimilarity(png_fname))
+
 if isIronPython():
     renderer.Dispose()
     indigo.Dispose()
diff --git a/core/render2d/src/render_common.cpp b/core/render2d/src/render_common.cpp
index 976470d79c..d87beeadf8 100644
--- a/core/render2d/src/render_common.cpp
+++ b/core/render2d/src/render_common.cpp
@@ -293,6 +293,7 @@ void RenderSettings::init(float relativeThickness, float bondLineWidthFactor, Ac
     bondLineWidth = bondLineWidthFactor * unit;
     bondSpace = 2.5f * unit;
     stereoBondSpace = bondSpace;
+    hashSpacing = -1;
 
     float label_font_size = unit * 12;
     if (acs != nullptr)
@@ -377,7 +378,10 @@ void RenderSettings::init(float relativeThickness, float bondLineWidthFactor, Ac
     layoutMarginHorizontal = 0.4f;
     layoutMarginVertical = 0.6f;
     plusSize = 0.5;
-    metaLineWidth = 1.0 / 16;
+    if (acs != nullptr && acs->bondThicknessAngstrom > 0)
+        metaLineWidth = bondLineWidth; // new behavior: plus and arrow width same as bond width
+    else
+        metaLineWidth = 1.0 / 16;
     arrowLength = 3 * plusSize;
     arrowHeadWidth = plusSize / 2;
     arrowHeadSize = plusSize / 2;