From fe70ed40faeab0dbde7b45c8130cf251a79d0793 Mon Sep 17 00:00:00 2001
From: Antoine Beyeler <49431240+abey79@users.noreply.github.com>
Date: Sun, 16 Oct 2022 17:38:01 +0200
Subject: [PATCH] Fixed issue where fit to bounds would be lost when changing
 document (#564)

This issue doesn't affect vpype per se as documents are never changed during the lifetime of a viewer, but it does affect vsketch in cases where sketches change their own page size (e.g. the `quick_draw` example.

Fixes #458
---
 CHANGELOG.md           |  1 +
 poetry.lock            | 12 ++++++------
 vpype_viewer/engine.py |  5 +++++
 3 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5101cc9e..41f598c4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,7 @@ Release date: UNRELEASED
 ### Bug fixes
 
 * Fixed a viewer issue where page width/height of 0 would lead to errors and a blank display (#555)
+* Fixed a viewer issue where fitting the document bounds would be lost when bounds change (*vsketch* only) (#564)
 
 ### API changes
 
diff --git a/poetry.lock b/poetry.lock
index ac5a3f82..7832c220 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -897,7 +897,7 @@ python-versions = ">=3.6"
 
 [[package]]
 name = "sphinx"
-version = "5.2.3"
+version = "5.3.0"
 description = "Python documentation generator"
 category = "dev"
 optional = false
@@ -1114,7 +1114,7 @@ python-versions = "*"
 
 [[package]]
 name = "types-setuptools"
-version = "65.4.0.0"
+version = "65.5.0.1"
 description = "Typing stubs for setuptools"
 category = "dev"
 optional = false
@@ -2053,8 +2053,8 @@ soupsieve = [
     {file = "soupsieve-2.3.2.post1.tar.gz", hash = "sha256:fc53893b3da2c33de295667a0e19f078c14bf86544af307354de5fcf12a3f30d"},
 ]
 sphinx = [
-    {file = "Sphinx-5.2.3.tar.gz", hash = "sha256:5b10cb1022dac8c035f75767799c39217a05fc0fe2d6fe5597560d38e44f0363"},
-    {file = "sphinx-5.2.3-py3-none-any.whl", hash = "sha256:7abf6fabd7b58d0727b7317d5e2650ef68765bbe0ccb63c8795fa8683477eaa2"},
+    {file = "Sphinx-5.3.0.tar.gz", hash = "sha256:51026de0a9ff9fc13c05d74913ad66047e104f56a129ff73e174eb5c3ee794b5"},
+    {file = "sphinx-5.3.0-py3-none-any.whl", hash = "sha256:060ca5c9f7ba57a08a1219e547b269fadf125ae25b06b9fa7f66768efb652d6d"},
 ]
 sphinx-autobuild = [
     {file = "sphinx-autobuild-2021.3.14.tar.gz", hash = "sha256:de1ca3b66e271d2b5b5140c35034c89e47f263f2cd5db302c9217065f7443f05"},
@@ -2130,8 +2130,8 @@ types-cachetools = [
     {file = "types_cachetools-5.2.1-py3-none-any.whl", hash = "sha256:b496b7e364ba050c4eaadcc6582f2c9fbb04f8ee7141eb3b311a8589dbd4506a"},
 ]
 types-setuptools = [
-    {file = "types-setuptools-65.4.0.0.tar.gz", hash = "sha256:d9021d6a70690b34e7bd2947e7ab10167c646fbf062508cb56581be2e2a1615e"},
-    {file = "types_setuptools-65.4.0.0-py3-none-any.whl", hash = "sha256:ce178b3f7dbd6c0e67f8eee7ae29c1be280ade7e5188bdd9e620843de4060d85"},
+    {file = "types-setuptools-65.5.0.1.tar.gz", hash = "sha256:5b297081c8f1fbd992cd8b305a97ed96ee6ffc765e9115124029597dd10b8a71"},
+    {file = "types_setuptools-65.5.0.1-py3-none-any.whl", hash = "sha256:601d45b5e9979d2b931de5403aa11153626a1eadd1ce9727b21f24673ced5ceb"},
 ]
 typing-extensions = [
     {file = "typing_extensions-4.4.0-py3-none-any.whl", hash = "sha256:16fa4864408f655d35ec496218b85f79b3437c829e93320c7c9215ccfd92489e"},
diff --git a/vpype_viewer/engine.py b/vpype_viewer/engine.py
index ab291c2e..79fe624b 100644
--- a/vpype_viewer/engine.py
+++ b/vpype_viewer/engine.py
@@ -126,6 +126,11 @@ def document(self) -> vp.Document | None:
     def document(self, document: vp.Document | None) -> None:
         self._document = document
         self._layer_visibility.clear()
+
+        # keep fitted to the viewport
+        if self._fit_to_viewport_flag:
+            self.fit_to_viewport()
+
         self._update()
 
     @property