fix crash when opening preference dialog

scripts/build_flatpak_with_docker.sh

@@ -0,0 +1,144 @@
+#!/usr/bin/env bash
+#
+# Build OrcaSlicer Flatpak locally using Docker with the same container image
+# as the CI (build_all.yml).
+#
+# Usage:
+#   ./scripts/build_flatpak_with_docker.sh [--arch <x86_64|aarch64>] [--no-debug-info]
+#
+# Requirements:
+#   - Docker (or Podman with docker compatibility)
+#
+# The resulting .flatpak bundle is placed in the project root.
+# A persistent Docker volume "flatpak-builder-cache" is used to cache
+# downloaded sources across builds. Remove it with:
+#   docker volume rm flatpak-builder-cache
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
+
+# ---------- defaults ----------
+ARCH="$(uname -m)"
+NO_DEBUG_INFO=false
+NO_PULL=false
+FORCE_CLEAN=true
+CONTAINER_IMAGE="ghcr.io/flathub-infra/flatpak-github-actions:gnome-49"
+
+# ---------- parse args ----------
+while [[ $# -gt 0 ]]; do
+    case "$1" in
+        --arch)
+            ARCH="$2"; shift 2 ;;
+        --no-debug-info)
+            NO_DEBUG_INFO=true; shift ;;
+        --no-pull)
+            NO_PULL=true; shift ;;
+        --keep-build)
+            FORCE_CLEAN=false; shift ;;
+        --image)
+            CONTAINER_IMAGE="$2"; shift 2 ;;
+        -h|--help)
+            echo "Usage: $0 [--arch <x86_64|aarch64>] [--no-debug-info] [--no-pull] [--keep-build] [--image <image>]"
+            exit 0 ;;
+        *)
+            echo "Unknown option: $1" >&2; exit 1 ;;
+    esac
+done
+
+# ---------- version & commit ----------
+cd "$PROJECT_ROOT"
+
+VER_PURE=$(grep 'set(SoftFever_VERSION' version.inc | cut -d '"' -f2)
+if [ -z "$VER_PURE" ]; then
+    echo "Error: could not extract version from version.inc" >&2
+    exit 1
+fi
+VER="V${VER_PURE}"
+GIT_COMMIT_HASH=$(git rev-parse HEAD)
+BUNDLE_NAME="OrcaSlicer-Linux-flatpak_${VER}_${ARCH}.flatpak"
+
+echo "=== OrcaSlicer Flatpak Build ==="
+echo "  Version:    ${VER} (${VER_PURE})"
+echo "  Commit:     ${GIT_COMMIT_HASH}"
+echo "  Arch:       ${ARCH}"
+echo "  Image:      ${CONTAINER_IMAGE}"
+echo "  Bundle:     ${BUNDLE_NAME}"
+echo "  Debug info: $([ "$NO_DEBUG_INFO" = true ] && echo "disabled" || echo "enabled")"
+echo "  ccache:     enabled"
+echo ""
+
+# ---------- prepare manifest ----------
+MANIFEST_SRC="scripts/flatpak/io.github.orcaslicer.OrcaSlicer.yml"
+MANIFEST_DOCKER="scripts/flatpak/io.github.orcaslicer.OrcaSlicer.docker.yml"
+cp "$MANIFEST_SRC" "$MANIFEST_DOCKER"
+
+# Ensure cleanup on exit (success or failure)
+trap 'rm -f "$PROJECT_ROOT/$MANIFEST_DOCKER"' EXIT
+
+# Optionally strip debug info (matches CI behaviour for faster builds)
+if [ "$NO_DEBUG_INFO" = true ]; then
+    sed -i '/^build-options:/a\  no-debuginfo: true\n  strip: true' "$MANIFEST_DOCKER"
+fi
+
+# Inject git commit hash (same sed as CI)
+sed -i "/name: OrcaSlicer/{n;s|buildsystem: simple|buildsystem: simple\n    build-options:\n      env:\n        git_commit_hash: \"$GIT_COMMIT_HASH\"|}" "$MANIFEST_DOCKER"
+
+# ---------- run build in Docker ----------
+DOCKER="${DOCKER:-docker}"
+
+if [ "$NO_PULL" = false ]; then
+    echo "=== Pulling container image ==="
+    "$DOCKER" pull "$CONTAINER_IMAGE"
+fi
+
+FORCE_CLEAN_FLAG=""
+if [ "$FORCE_CLEAN" = true ]; then
+    FORCE_CLEAN_FLAG="--force-clean"
+fi
+
+# Pass build parameters as env vars so the inner script doesn't need
+# variable expansion from the outer shell (avoids quoting issues).
+echo "=== Starting Flatpak build inside container ==="
+"$DOCKER" run --rm --privileged \
+    -v "$PROJECT_ROOT":/src:Z \
+    -v flatpak-builder-cache:/src/.flatpak-builder \
+    -w /src \
+    -e "BUILD_ARCH=$ARCH" \
+    -e "BUNDLE_NAME=$BUNDLE_NAME" \
+    -e "FORCE_CLEAN_FLAG=$FORCE_CLEAN_FLAG" \
+    "$CONTAINER_IMAGE" \
+    bash -c '
+        set -euo pipefail
+
+        # Install required SDK extensions (not pre-installed in the container image)
+        flatpak install -y --noninteractive flathub \
+            org.freedesktop.Sdk.Extension.llvm21//25.08 || true
+
+        flatpak-builder $FORCE_CLEAN_FLAG \
+            --ccache \
+            --disable-rofiles-fuse \
+            --arch="$BUILD_ARCH" \
+            --repo=flatpak-repo \
+            flatpak-build \
+            scripts/flatpak/io.github.orcaslicer.OrcaSlicer.docker.yml
+
+        flatpak build-bundle \
+            --arch="$BUILD_ARCH" \
+            flatpak-repo \
+            "$BUNDLE_NAME" \
+            io.github.orcaslicer.OrcaSlicer
+
+        # Fix ownership so output files are not root-owned on the host
+        chown "$(stat -c %u:%g /src)" "$BUNDLE_NAME" flatpak-build flatpak-repo
+
+        echo "=== Build complete ==="
+    '
+
+echo ""
+echo "=== Flatpak bundle ready ==="
+echo "  ${PROJECT_ROOT}/${BUNDLE_NAME}"
+echo ""
+echo "Install with:"
+echo "  flatpak install --user ${BUNDLE_NAME}"

scripts/flatpak/.gitignore

@@ -1,2 +1,3 @@
 builddir
 .flatpak-builder
+*.docker.yml

scripts/flatpak/io.github.orcaslicer.OrcaSlicer.yml

@@ -333,6 +333,11 @@ modules:
 
       - install -Dm644 LICENSE.txt /app/share/licenses/${FLATPAK_ID}/LICENSE.txt
 
+      - | # Install fonts into fontconfig-scanned directory so Pango finds them
+        # before initialization (avoids ensure_faces crash from AddPrivateFont)
+        install -Dm644 -t /app/share/fonts/OrcaSlicer/ resources/fonts/*.ttf
+        fc-cache -f /app/share/fonts/OrcaSlicer/
+
     sources:
       # OrcaSlicer source tree (specific dirs to avoid copying .git from worktree)
       - type: dir