Currently, KStandardItemListWidgetInformant::itemSizeHint() calls the
model's data(int) method for every single item, but the full data is
actually only needed for the size calculation in Compact View. In
Details View, no data is needed at all to determine the size required
for the item, and in Icons View, only the name is needed.
This patch makes it possible for subclasses of
KStandardItemListWidgetInformant to provide an alternative way to
obtain the "text", and implements this in the subclass
KFileItemListWidgetInformant.
The final goal is to achieve that the QHash which contains all data
for a file item is only created if it is really needed, e.g., because
the view needs access to the data for displaying the item on the
screen.
REVIEW: 112253
Related changes:
- Animate changed items for the details-view in case it is not expandable
- Remove the hardcoded "isHidden"-code in KStandardItemListWidget and
allow derived widgets to define themselves what means "hidden" within
their context.
The current code needs a lot of bugfixing, but lets make this in smaller
steps during the next days...
Up to now the view-engine only provided a model-implementation that
supports file-items. The view-engine always had been designed to be able
to work with any kind of model, so now a KStandardItemModel is available.
The plan is to convert the places panel to the new view-engine. It should
be no problem to fix this until the feature freeze - in the worst case
the places-panel code could be reverted while still keeping the
KStandardItemModel changes.
Metadata like image-size, rating, comments, tags, ... can be shown
now in the view (e.g. as column in the Details mode).
Still open: The rating-information needs to be shown as stars.
In the context of this feature also the following bugs have been
fixed:
- Fix visual glitches in the header of the Details mode
- Improve the minimum column width calculation to respect also
the headling and not only the content
BUG: 296782
FIXED-IN: 4.9.0
- Remove KItemListView::preferredRoleColumnWidth() and allow implementing
this as part of derived classes from KItemListWidget. Those derived
classes are aware about the layout and hence also can provide the
preferred role width.
- Make KItemListView::itemSizeHint() non-virtual and also allow
implementing the size hint as part of derived classes from KItemListWidget.
If the user changed a column-width in the details-view, up to now
the width got reset when changing a directory or when restarting
Dolphin. Now the column-widths automatically get remembered for each
directory in case if the user has modified the width. The automatic
resizing is still turn on per default. The storing of the custom
column-width can easily be reset by right clicking on the header and
selecting "Automatic Column Widths" from the context-menu.
Some finetuning is still necessary (e.g. the "Adjust View Properties"
dialog currently is not aware about this setting) but this will
be fixed during the next weeks.
BUG: 264434
FIXED-IN: 4.9.0
The option for turning off expandable folders has been removed with
the new view-engine. Due to several requests this option has been
readded again.
As for 4.8.x no new user-interface strings may be introduced, the
line
ExpandableFolders=false
must be manually added below the section "[DetailsMode]" in the file
~/.kde/share/config/dolphinrc if the expandable-folders feature
should be disabled.
Thanks to H.H. "cyberbeat" for the initial patch!
BUG: 289090
FIXED-IN: 4.8.2
Up to now no indicator-branches have been drawn when showing a tree. The patch
fixes this so that that the style-dependent branches are drawn.
The main part of the patch is the implementation of
KItemListView::updateSiblingsInformation(). Most of the other changes are
related due to an internal renaming of the expansionsLevel-role to
expandedParentsCount and some related cleanups.
BUG: 290276
FIXED-IN: 4.8.1
- Assure that landscape-previews use the whole available width of the icon-area
instead of only using the square width. This waste of space occured if the
text-width was larger than the icon-width.
- Only use one margin instead of two between the icons and the text to improve the
visual appearance (thanks to Martin Zilz for the hint)
BUG: 293268
FIXED-IN: 4.8.1
CCMAIL: martin@kreativkonzentrat.de
The role is used to determine whether a directory can be expanded at all. This
is e.g. not the case if a directory has 0 items or the target-URL is different
from the item-URL.
The expansion toggle will get hidden if a directory is not expandable.
CCBUG: 288521
The size of the icon boundaries should be as minimal as possible.
The patch for fixing the zooming-issues with the selection resulted
into a minor regression where the icon boundaries might be too large.
This patch remembers the original size of the pixmap to be able
to scale m_iconRect.
Don't use a custom drawing code for showing the hover-indication
or selection of the text.
- The default style for items is used.
- Merge icon-rectangle and text-rectangle if possible.
- Fix background and minor focus-issues
The current approach works fine but should be replaced in the longterm
by a helper class shared by KFileItemListWidget and
KFileItemListView to share information that is required to
calculate the size hints in KFileItemListView and to represent
the actual data in KFileItemListWidget.
- Add a DolphinFileItemListWidget that provides icon-overlays
and colored text for the version state (implementation is
missing yet)
- Allow KFileItemListWidget to have custom text colors
- Update interface of VersionControlObserver to work with
KFileItemModel instead of the old model-interface.
As the textbounding-rectangle is now a property of KItemListWidget
also the default visual appearance is moved now from
KFileItemListWidget to KItemListWidget.
It has been split now to iconBoundingRect() and textBoundingRect().
This is required to implement the rubberband in an efficient way
and makes it more explicit what rectangle is returned.
Dolphin 2.0 will get a new view-engine with the
following improvements:
- Better performance
- Animated transitions
- No clipped filenames due to dynamic item-sizes
- Grouping support for all view-modes
- Non-rectangular selection areas
- Simplified code for better maintenance
More details will be provided in a blog-entry during
the next days.
Please note that the code is in a very
early alpha-stage and although the most tricky parts
have been implemented already very basic things like
drag and drop or selections have not been pushed yet.
Those things are rather trivial to implement but this
still will take some time.
