diff options
Diffstat (limited to 'vendor/x11iraf/obm/ObmW/HTML.notes')
| -rw-r--r-- | vendor/x11iraf/obm/ObmW/HTML.notes | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/vendor/x11iraf/obm/ObmW/HTML.notes b/vendor/x11iraf/obm/ObmW/HTML.notes new file mode 100644 index 00000000..95ab1689 --- /dev/null +++ b/vendor/x11iraf/obm/ObmW/HTML.notes @@ -0,0 +1,72 @@ +HTML Widget + + Composite widget consisting of a drawingArea widget and horizontal and + vertical scrollbars. + +Resources + + pic_data = resolveImageFunction (w, src, noload) + pic_data = resolveDelayedImage (w, src) + + +Callbacks + + anchorCallback (w, cbdata) called when href is selected + linkCallback (w, cbdata) called during set text for <LINK> tags + submitFormCallback (w, cbdata) called when form is submitted + + LinkInfo: href role + anchorCallback: event element_id text href + formCallback: event href method enctype enc_entity + attrib_count attrib_names attrib_values + + +Public Functions + + HTMLGetText (w, pretty) # text or Postscript + HTMLPositionToId (w, x, y) # find nearest element + HTMLIdToPosition (w, element_id, x, y) # cvt id to position + HTMLGotoId (w, element_id) # scroll window to element + HTMLAnchorToPosition (w, name, x, y) # pos of anchor given name + HTMLAnchorToId (w, name) # id of anchor given name + list = HTMLGetHRefs (w, num_hrefs) # HREFs of all active anchors + HTMLGetImageSrcs (w, num_srcs) # SRCs of all images in doc + HTMLGetLinks (w, num_links) # get list of LINK tags in doc + + HTMLGetWidgetInfo (w) # get widget list + HTMLFreeImageInfo (w) # free image resources + HTMLFreeWidgetInfo (ptr) # free WidgetInfo struct + +** HTMLRetestAnchors (w, testFunc, data) # redraw all active anchors + + HTMLSetSelection (w, start, end) # set selection by ElementRef + HTMLClearSelection (w) # clear selection +HTMLGetTextAndSelection(w,startp,endp,insertp) # get selection + + HTMLSetText (w, text, header_text, # set document text + footer_text, element_id, target_anchor, ptr) + + HTMLSearchText (w, pattern, m_start, # search text -> ElementRefs + m_end, backward, caseless) + + +LOCAL REVISIONS +---------------------- + +Added a third argument (client_data for the callback function) to the +HTMLRetestAnchors function. This required changes to several files. + +Likewise, added a client_data argument to the pointer motion callback. +Mosaic in its callbacks would assume that the HTML widget was being called +from within Mosaic, but this doesn't work in a more general setting. + +Modified the HTML widget to add a custom Realize method. This calls the +realize method of the superclass and then makes a drawGC for the HTML +widget. This was necessary to avoid segvios occuring when something is +drawn in the window before the application becomes idle and the widget +processes the first Expose event, as the widget would create the GC only +in response to the expose event. + +Added a "scroll" action to the widget and modified the default HTML +translations to add u/d and j/k keys to permit vertical scrolling using the +keyboard instead of the scroll bars. |