Additional documentation for developers

Mostly to describe the source of non-standard icons.

diff --git a/DEVELOPER-NOTES.md b/DEVELOPER-NOTES.md
new file mode 100644 (file)
index 0000000..a78d324
--- /dev/null
+++ b/DEVELOPER-NOTES.md
@@ -0,0 +1,45 @@
+# Additional Information for Developers
+
+
+## Non-standard icons
+
+#### Collection drag-drop icon
+
+#### ![][image_ref_gq_marker_png]
+Used when dropping images onto a Collection.
+Defined in `./src/icons/gq-marker.xpm`.
+
+#### Overlay Screen Display icons
+
+##### ![][image_ref_image_osd_color_png] IMAGE_OSD_COLOR
+##### ![][image_ref_image_osd_first_png] IMAGE_OSD_FIRST
+##### ![][image_ref_image_osd_icon_png] IMAGE_OSD_ICON
+##### ![][image_ref_image_osd_last_png] IMAGE_OSD_LAST
+##### ![][image_ref_image_osd_rotate_auto_png] IMAGE_OSD_ROTATE_AUTO
+
+Shown in the Overlay Screen Display. Defined in `./src/image-overlay.cc image_osd_icon_pixbuf()`.
+
+## Menus
+
+Menu processing is in `./src/layout-util.cc menu_entries[]`.
+
+## Doxygen Documentation
+Complete code documentation in html format can be generated via the script `./scripts/doxygen.sh`.
+
+[image_ref_image_osd_color_png]:
+data:image/png;base64,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
+
+[image_ref_gq_marker_png]:
+data:image/png;base64,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
+
+[image_ref_image_osd_icon_png]:
+data:image/png;base64,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
+
+[image_ref_image_osd_rotate_auto_png]:
+data:image/png;base64,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
+
+[image_ref_image_osd_first_png]:
+data:image/png;base64,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
+
+[image_ref_image_osd_last_png]:
+data:image/png;base64,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

diff --git a/doc/images/gq-marker.png b/doc/images/gq-marker.png
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diff --git a/doc/images/image-osd-color.png b/doc/images/image-osd-color.png
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index 0000000..6338193
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diff --git a/doc/images/image-osd-first.png b/doc/images/image-osd-first.png
new file mode 100644 (file)
index 0000000..d6db49b
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diff --git a/doc/images/image-osd-icon.png b/doc/images/image-osd-icon.png
new file mode 100644 (file)
index 0000000..70d762a
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diff --git a/doc/images/image-osd-last.png b/doc/images/image-osd-last.png
new file mode 100644 (file)
index 0000000..0d59f8b
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diff --git a/doc/images/image-osd-rotate-auto.png b/doc/images/image-osd-rotate-auto.png
new file mode 100644 (file)
index 0000000..56b8d6b
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diff --git a/scripts/doxygen.sh b/scripts/doxygen.sh
index ee74caa..2431d7b 100755 (executable)
--- a/scripts/doxygen.sh
+++ b/scripts/doxygen.sh
@@ -43,9 +43,10 @@ else
        DOCDIR="$PWD"/../doxygen
 fi
 
-if ! mkdir -p "$DOCDIR"/doxygen
+if ! mkdir -p "$DOCDIR"/
 then
        printf "Cannot create %s\n" "$DOCDIR"
+       exit 1
 fi
 
 export DOCDIR

diff --git a/src/image-overlay.cc b/src/image-overlay.cc
index bded760..83976d8 100644 (file)
--- a/src/image-overlay.cc
+++ b/src/image-overlay.cc
@@ -449,6 +449,23 @@ static GdkPixbuf *image_osd_info_render(OverlayStateData *osd)
        return pixbuf;
 }
 
+/**
+ * @brief Create non-standard icons for the OSD
+ * @param flag
+ * @returns
+ *
+ * IMAGE_OSD_COLOR
+ * \image html image-osd-color.png
+ * IMAGE_OSD_FIRST
+ * \image html image-osd-first.png
+ * IMAGE_OSD_ICON
+ * \image html image-osd-icon.png
+ * IMAGE_OSD_LAST
+ * \image html image-osd-last.png
+ * IMAGE_OSD_ROTATE_AUTO
+ * \image html image-osd-rotate-auto.png
+ *
+ */
 static GdkPixbuf *image_osd_icon_pixbuf(ImageOSDFlag flag)
 {
        static GdkPixbuf **icons = nullptr;