ocioview: app mode, tests, color space menus, bug fixes

src/apps/ocioview/main.py

@@ -1,68 +1,17 @@
 # SPDX-License-Identifier: BSD-3-Clause
 # Copyright Contributors to the OpenColorIO Project.
 
-import logging
-import os
 import sys
-from pathlib import Path
 
-import PyOpenColorIO as ocio
-from PySide6 import QtCore, QtGui, QtWidgets
-
-import ocioview.log_handlers  # Import to initialize logging
 from ocioview.main_window import OCIOView
-from ocioview.style import QSS, DarkPalette
-
-
-ROOT_DIR = Path(__file__).resolve().parent.parent
-FONTS_DIR = ROOT_DIR / "fonts"
-
-
-def excepthook(exc_type, exc_value, exc_tb):
-    """Log uncaught errors"""
-    if issubclass(exc_type, KeyboardInterrupt):
-        sys.__excepthook__(exc_type, exc_value, exc_tb)
-        return
-    logging.error(f"{exc_value}", exc_info=exc_value)
+from ocioview.setup import setup_app
 
 
 if __name__ == "__main__":
-    sys.excepthook = excepthook
-
-    # OpenGL core profile needed on macOS to access programmatic pipeline
-    gl_format = QtGui.QSurfaceFormat()
-    gl_format.setProfile(QtGui.QSurfaceFormat.CoreProfile)
-    gl_format.setSwapInterval(1)
-    gl_format.setVersion(4, 0)
-    QtGui.QSurfaceFormat.setDefaultFormat(gl_format)
-
-    # Create app
-    app = QtWidgets.QApplication(sys.argv)
-
-    # Initialize style
-    app.setStyle("fusion")
-    app.setPalette(DarkPalette())
-    app.setStyleSheet(QSS)
-    app.setEffectEnabled(QtCore.Qt.UI_AnimateCombo, False)
-
-    font = app.font()
-    font.setPointSize(8)
-    app.setFont(font)
-
-    # Clean OCIO environment to isolate working config
-    for env_var in (
-        ocio.OCIO_CONFIG_ENVVAR,
-        ocio.OCIO_ACTIVE_VIEWS_ENVVAR,
-        ocio.OCIO_ACTIVE_DISPLAYS_ENVVAR,
-        ocio.OCIO_INACTIVE_COLORSPACES_ENVVAR,
-        ocio.OCIO_OPTIMIZATION_FLAGS_ENVVAR,
-        ocio.OCIO_USER_CATEGORIES_ENVVAR,
-    ):
-        if env_var in os.environ:
-            del os.environ[env_var]
+    app = setup_app()
 
     # Start ocioview
-    ocioview = OCIOView()
-    ocioview.show()
+    ocio_view = OCIOView()
+    ocio_view.show()
 
     sys.exit(app.exec_())

src/apps/ocioview/ocioview/config_cache.py

@@ -21,7 +21,10 @@ class ConfigCache:
     _active_views: Optional[list[str]] = None
     _all_names: Optional[list[str]] = None
     _categories: Optional[list[str]] = None
-    _color_spaces: dict[bool, list[ocio.ColorSpace]] = {}
+    _color_spaces: dict[
+        tuple[bool, ocio.SearchReferenceSpaceType, ocio.ColorSpaceVisibility],
+        Union[list[ocio.ColorSpace], ocio.ColorSpaceSet],
+    ] = {}
     _color_space_names: dict[ocio.SearchReferenceSpaceType, list[str]] = {}
     _default_color_space_name: Optional[str] = None
     _default_view_transform_name: Optional[str] = None
@@ -117,7 +120,10 @@ def get_active_displays(cls) -> list[str]:
             cls._active_displays = list(
                 filter(
                     None,
-                    re.split(r" *[,:] *", ocio.GetCurrentConfig().getActiveDisplays()),
+                    re.split(
+                        r" *[,:] *",
+                        ocio.GetCurrentConfig().getActiveDisplays(),
+                    ),
                 )
             )
 
@@ -132,7 +138,9 @@ def get_active_views(cls) -> list[str]:
             cls._active_views = list(
                 filter(
                     None,
-                    re.split(r" *[,:] *", ocio.GetCurrentConfig().getActiveViews()),
+                    re.split(
+                        r" *[,:] *", ocio.GetCurrentConfig().getActiveViews()
+                    ),
                 )
             )
 
@@ -213,23 +221,34 @@ def get_categories(cls) -> list[str]:
 
     @classmethod
     def get_color_spaces(
-        cls, as_set: bool = False
+        cls,
+        reference_space_type: Optional[ocio.SearchReferenceSpaceType] = None,
+        visibility: Optional[ocio.ColorSpaceVisibility] = None,
+        as_set: bool = False,
     ) -> Union[list[ocio.ColorSpace], ocio.ColorSpaceSet]:
         """
         Get all (all reference space types and visibility states) color
         spaces from the current config.
 
+        :param reference_space_type: Optionally filter by reference
+            space type.
+        :param visibility: Optional filter by visibility
         :param as_set: If True, put returned color spaces into a
             ColorSpaceSet, which copies the spaces to insulate from config
             changes.
         :return: list or color space set of color spaces
         """
-        cache_key = as_set
+        if reference_space_type is None:
+            reference_space_type = ocio.SEARCH_REFERENCE_SPACE_ALL
+        if visibility is None:
+            visibility = ocio.COLORSPACE_ALL
+
+        cache_key = (as_set, reference_space_type, visibility)
 
         if not cls.validate() or cache_key not in cls._color_spaces:
             config = ocio.GetCurrentConfig()
             color_spaces = config.getColorSpaces(
-                ocio.SEARCH_REFERENCE_SPACE_ALL, ocio.COLORSPACE_ALL
+                reference_space_type, visibility
             )
             if as_set:
                 color_space_set = ocio.ColorSpaceSet()
@@ -253,7 +272,10 @@ def get_color_space_names(
         """
         cache_key = reference_space_type
 
-        if not cls.validate() or reference_space_type not in cls._color_space_names:
+        if (
+            not cls.validate()
+            or reference_space_type not in cls._color_space_names
+        ):
             cls._color_space_names[cache_key] = list(
                 ocio.GetCurrentConfig().getColorSpaceNames(
                     reference_space_type, ocio.COLORSPACE_ALL
@@ -402,7 +424,9 @@ def get_named_transforms(cls) -> list[ocio.NamedTransform]:
         """
         if not cls.validate() or cls._named_transforms is None:
             cls._named_transforms = list(
-                ocio.GetCurrentConfig().getNamedTransforms(ocio.NAMEDTRANSFORM_ALL)
+                ocio.GetCurrentConfig().getNamedTransforms(
+                    ocio.NAMEDTRANSFORM_ALL
+                )
             )
 
         return cls._named_transforms
@@ -471,7 +495,9 @@ def get_view_transforms(cls) -> list[ocio.ViewTransform]:
         :return: List of view transforms from the current config
         """
         if not cls.validate() or cls._view_transforms is None:
-            cls._view_transforms = list(ocio.GetCurrentConfig().getViewTransforms())
+            cls._view_transforms = list(
+                ocio.GetCurrentConfig().getViewTransforms()
+            )
 
         return cls._view_transforms
 
@@ -496,7 +522,10 @@ def get_viewing_rule_names(cls) -> list[str]:
         if not cls.validate() or cls._viewing_rule_names is None:
             viewing_rules = ocio.GetCurrentConfig().getViewingRules()
             cls._viewing_rule_names = sorted(
-                [viewing_rules.getName(i) for i in range(viewing_rules.getNumEntries())]
+                [
+                    viewing_rules.getName(i)
+                    for i in range(viewing_rules.getNumEntries())
+                ]
             )
 
         return cls._viewing_rule_names

src/apps/ocioview/ocioview/config_dock.py

@@ -6,6 +6,7 @@
 import PyOpenColorIO as ocio
 from PySide6 import QtCore, QtWidgets
 
+from .signal_router import SignalRouter
 from .items import (
     ColorSpaceEdit,
     ConfigPropertiesEdit,
@@ -26,10 +27,21 @@ class ConfigDock(TabbedDockWidget):
     Dockable widget for editing the current config.
     """
 
-    config_changed = QtCore.Signal()
-
-    def __init__(self, parent: Optional[QtCore.QObject] = None):
-        super().__init__("Config", get_glyph_icon("ph.file-text"), parent=parent)
+    def __init__(
+        self,
+        corner_widget: Optional[QtWidgets.QWidget] = None,
+        parent: Optional[QtCore.QObject] = None,
+    ):
+        """
+        :param corner_widget: Optional widget to place on the right
+            side of the dock title bar.
+        """
+        super().__init__(
+            "Config",
+            get_glyph_icon("ph.file-text"),
+            corner_widget=corner_widget,
+            parent=parent,
+        )
 
         self._models = []
 
@@ -50,9 +62,13 @@ def __init__(self, parent: Optional[QtCore.QObject] = None):
         self._connect_config_item_model(self.rule_edit.viewing_rule_edit.model)
 
         self.display_view_edit = DisplayViewEdit()
-        self._connect_config_item_model(self.display_view_edit.view_edit.display_model)
+        self._connect_config_item_model(
+            self.display_view_edit.view_edit.display_model
+        )
         self._connect_config_item_model(self.display_view_edit.view_edit.model)
-        self._connect_config_item_model(self.display_view_edit.shared_view_edit.model)
+        self._connect_config_item_model(
+            self.display_view_edit.shared_view_edit.model
+        )
         self._connect_config_item_model(
             self.display_view_edit.active_display_view_edit.active_display_edit.model
         )
@@ -137,7 +153,9 @@ def update_config_views(self) -> None:
         """
         message_queue.put_nowait(ocio.GetCurrentConfig())
 
-    def _connect_config_item_model(self, model: QtCore.QAbstractItemModel) -> None:
+    def _connect_config_item_model(
+        self, model: QtCore.QAbstractItemModel
+    ) -> None:
         """
         Collect model and route all config changes to the
         'config_changed' signal.
@@ -154,7 +172,7 @@ def _on_config_changed(self, *args, **kwargs) -> None:
         """
         Broadcast to the wider application that the config has changed.
         """
-        self.config_changed.emit()
+        SignalRouter.get_instance().emit_config_changed()
         self.update_config_views()
 
     def _on_warning_raised(self, message: str) -> None:

src/apps/ocioview/ocioview/inspect/chromaticities_inspector.py

@@ -371,9 +371,9 @@ def _setup_visuals(self) -> None:
         )
         self._visuals["rgb_color_space_input_3d"].visible = False
         self._visuals["rgb_color_space_chromaticities_2d"].visible = False
-        self._visuals["rgb_color_space_chromaticities_2d"].local.position = (
-            np.array([0, 0, 0.00005])
-        )
+        self._visuals[
+            "rgb_color_space_chromaticities_2d"
+        ].local.position = np.array([0, 0, 0.00005])
         self._visuals["rgb_color_space_chromaticities_3d"].visible = False
         self._visuals["rgb_scatter_3d"].visible = False
 
@@ -494,9 +494,11 @@ def _update_visuals(self, *args):
         conversion_chain = []
 
         image_array = np.copy(self._image_array)
+        # Don't try to process single or zero pixel images
+        image_empty = image_array.size <= 3
 
         # 1. Apply current active processor
-        if self._processor is not None:
+        if not image_empty and self._processor is not None:
             if self._context.transform_item_name is not None:
                 conversion_chain += [
                     self._context.input_color_space,
@@ -508,12 +510,12 @@ def _update_visuals(self, *args):
             )
 
             if rgb_colourspace is not None:
-                self._visuals["rgb_color_space_input_2d"].colourspace = (
-                    rgb_colourspace
-                )
-                self._visuals["rgb_color_space_input_3d"].colourspace = (
-                    rgb_colourspace
-                )
+                self._visuals[
+                    "rgb_color_space_input_2d"
+                ].colourspace = rgb_colourspace
+                self._visuals[
+                    "rgb_color_space_input_3d"
+                ].colourspace = rgb_colourspace
             self._processor.applyRGB(image_array)
 
         # 2. Convert from chromaticities input space to "CIE-XYZ-D65" interchange
@@ -559,11 +561,12 @@ def _update_visuals(self, *args):
         # 3. Convert from "CIE-XYZ-D65" to "VisualRGBScatter3D" working space
         conversion_chain += ["CIE-XYZ-D65", self._working_space]
 
-        image_array = XYZ_to_RGB(
-            image_array,
-            self._working_space,
-            illuminant=self._working_whitepoint,
-        )
+        if not image_empty:
+            image_array = XYZ_to_RGB(
+                image_array,
+                self._working_space,
+                illuminant=self._working_whitepoint,
+            )
 
         conversion_chain = [
             color_space for color_space, _group in groupby(conversion_chain)

src/apps/ocioview/ocioview/inspect/code_inspector.py

@@ -55,16 +55,22 @@ def __init__(self, parent: Optional[QtCore.QObject] = None):
         self.export_button = QtWidgets.QToolButton()
         self.export_button.setIcon(get_glyph_icon("mdi6.file-export-outline"))
         self.export_button.setText("Export CTF")
-        self.export_button.setToolButtonStyle(QtCore.Qt.ToolButtonTextBesideIcon)
+        self.export_button.setToolButtonStyle(
+            QtCore.Qt.ToolButtonTextBesideIcon
+        )
         self.export_button.released.connect(self._on_export_button_released)
 
         self.ctf_view = LogView()
         self.ctf_view.document().setDefaultStyleSheet(html_css)
         self.ctf_view.append_tool_bar_widget(self.export_button)
 
         self.gpu_language_box = EnumComboBox(ocio.GpuLanguage)
-        self.gpu_language_box.setSizeAdjustPolicy(QtWidgets.QComboBox.AdjustToContents)
-        self.gpu_language_box.set_member(MessageRouter.get_instance().gpu_language)
+        self.gpu_language_box.setSizeAdjustPolicy(
+            QtWidgets.QComboBox.AdjustToContents
+        )
+        self.gpu_language_box.set_member(
+            MessageRouter.get_instance().gpu_language
+        )
         self.gpu_language_box.currentIndexChanged[int].connect(
             self._on_gpu_language_changed
         )
@@ -136,7 +142,9 @@ def _scroll_preserved(self, log_view: LogView) -> None:
         h_scroll_bar = log_view.horizontalScrollBar()
 
         # Get line number from bottom of view
-        prev_cursor = log_view.cursorForPosition(log_view.html_view.rect().bottomLeft())
+        prev_cursor = log_view.cursorForPosition(
+            log_view.html_view.rect().bottomLeft()
+        )
         prev_line_num = prev_cursor.blockNumber()
 
         # Get scroll bar positions
@@ -149,7 +157,9 @@ def _scroll_preserved(self, log_view: LogView) -> None:
         # Restore current line number
         cursor = QtGui.QTextCursor(log_view.document())
         cursor.movePosition(
-            QtGui.QTextCursor.Down, QtGui.QTextCursor.MoveAnchor, prev_line_num - 1
+            QtGui.QTextCursor.Down,
+            QtGui.QTextCursor.MoveAnchor,
+            prev_line_num - 1,
         )
         log_view.setTextCursor(cursor)
 
@@ -167,7 +177,9 @@ def _on_config_html_ready(self, record: str) -> None:
             self.config_view.setHtml(record)
 
     @QtCore.Slot(str, ocio.GroupTransform)
-    def _on_ctf_html_ready(self, record: str, group_tf: ocio.GroupTransform) -> None:
+    def _on_ctf_html_ready(
+        self, record: str, group_tf: ocio.GroupTransform
+    ) -> None:
         """
         Update CTF view with a lossless XML representation of an
         OCIO processor.
@@ -178,7 +190,9 @@ def _on_ctf_html_ready(self, record: str, group_tf: ocio.GroupTransform) -> None
             self.ctf_view.setHtml(record)
 
     @QtCore.Slot(str, ocio.GPUProcessor)
-    def _on_shader_html_ready(self, record: str, gpu_proc: ocio.GPUProcessor) -> None:
+    def _on_shader_html_ready(
+        self, record: str, gpu_proc: ocio.GPUProcessor
+    ) -> None:
         """
         Update shader view with fragment shader source created
         from an OCIO GPU processor.