Though the layer list will also show updated, it is much easier to look
at the layer name in the status bar whose position never changes.
Anyway it makes sense to just show a temporary status info message
giving the picked layer name, making it all the easier to find the layer
you are looking for.
Instead of having layer picking only on paint tools with alt-click, make
it available everywhere with alt-middle click. Moving through layers is
also a way to navigate an image, so it actually makes sense to be with
other modifiers (panning, zooming, rotating), while making the feature
more generic (this is definitely useful whatever the selected tool).
When re-activating an operation tool by clicking on a different
drawable while the tool is active, we re-call the corresponding
procedure to re-activate the tool, which implictly initializes it.
Avoid initializaing it explicitly in addition to that, since this
leads to the creation of a new config object by the filter tool,
while the GUI still refers to the old, now-dead, config object,
causing CRITICALs or segfaults when changing any parameter.
... changing layers and warping layer B
Add a new GimpToolControl::dirty_action field, which specifies the
tool action to perform when the a dirty event matching the tool
control's dirty mask occurs; this field defaults to HALT. Apply
this action to the active tool in tool-manager in response to a
matching dirty event, instead of unconditionally halting the tool.
Likewise, use this action to stop the active tool in response to a
button-press event on a different drawable in the same image.
Set the dirty action of the gradient and warp tools to COMMIT, so
that they get comitted, rather than stopped, in cases such as
switching layers (including switching to/from quick-mask mode),
and, for the warp tool, changing the selection.
When Control-Button2-Zooming, remember the start point, pass it to
gimp_display_shell_scale_drag() and force gimp_display_shell_scale()
to zoom around that point by passing GIMP_ZOOM_FOCUS_POINTER and
faking the point using gimp_display_shell_push_zoom_focus_pointer_pos().
- Fix gimp_scroll_adjustment_values() for smooth scroll events
- Set GDK_SMOOTH_SCROLL_MASK on all widgets where we set GDK_SCROLL_MASK
- Add GIMP_ZOOM_SMOOTH to enum GimpZoomType
- Add "gdouble delta" to gimp_zoom_model_step()
- Change the meaning of the "scale" parameter to "scale or delta" in
all functions that take GimpZoomType and a scale factor.
In gimp_display_shell_canvas_tool_events(), use
gdk_window_set_event_compression(), instead of implementing our own
motion compression, which used to introduce all sorts of weird
effects when combined with extended input devices, that we had to
hackishly work around.
For tools that use GIMP_MOTION_MODE_EXACT, we call
gdk_window_set_event_compression() to disable motion compression
for the canvas window upon initializing the tool in response to a
GDK_BUTTON_PRESS event, and again to re-eanble compression upon the
corresponding GDK_BUTTON_RELEASE event.
This commit also merges
gimp_display_shell_canvas_tool_events_internal() back into
gimp_display_shell_canvas_tool_events(). The split was a detail
of our custom motion compression implementation.
- add new "device from event" apparatus that works on GTK+ 3.x
- fix the active device selection mechanism
- use the new device grabbing functions
- make sure we don't process events while we have a grab on
another device
- compensate for some really obscure (and likely broken) behavior
of XI2, it feels like we are the first real users...
... _even at low zoom levels_
Pass GIMP_ZOOM_FOCUS_POINTER to gimp_display_shell_scale() when
wheel-scrolling, and change the scaling code to really honor
GIMP_ZOOM_FOCUS_POINTER and not apply magic image centering.
This keep the same point centered under the mouse for wheel-scrolling
and the zoom tool (== when the zooming is really triggered at a
certain mouse position).
GimpDeviceInfo is the only way to store per-device settings like
color, brush etc. It used to be derived from GimpContext and therefore
limited to the context's properties, causing everything else (all
tool-individual options) to be lost on device change.
Derive it from GimpToolPreset instead, so it's capable of storing
arbitrary tool options.
Adapt things to the new class hierarchy and add a bunch of signal
handlers that make sure the active device's GimpDeviceInfo is updated
properly when the tool changes. Also change device switching
accordingly.
Change GimpDeviceStatus to only show the stuff that is relevant to
each device's tool.
And various small changes to make things work properly...
Commit b279c2d217 was breaking a specific use case, which I oversaw:
when space bar activates the move tool, you may want to release the
space bar while mouse button is pressed, and expect to still be able to
move the layer/selection/guide, but releasing space was stopping the
move immediately. The move tool must only be deactivated when both space
and button 1 are released, and the move itself must continue as long as
button 1 is pressed (when started while space was pressed).
As a nice side effect of this commit, panning and canvas rotation are
also improved since now they can be continued while releasing space
(respectively shift-space) if mouse button 1 was pressed, and up until
the mouse button is released. Pressing space again, then releasing the
mouse, back and forth, also work as expected (i.e. move tool stay
activated though the move stops; and panning or rotation continue).
Of course now we don't get anymore panning/rotation stuck while neither
space nor mouse buttons are pressed (which was the original bug). At
least one of these need to stay pressed for panning/rotation/move to
stay activated. And initial activation is obviously always through
(shift-)space only.
... scrolling in progress.
In particular, this could happen while panning with mouse middle click
and hitting space. This space should simply be ignored.
The bug was affecting actually both canvas rotation and panning when
done with space key. If the first mouse button was also clicked, then
released after the space key, we ended up in some stuck action. It could
only be unstuck by hitting/releasing space again.
I am actually unsure that this was not originally done on purpose,
especially since the code has these 2 status variables space_pressed and
space_release_pending, but really apart from looking at this code, the
behavior just looks very buggy and impracticable.
The new behavior is to just stop the canvas panning/rotation as soon as
space is released (which is also how it is documented in our manual, and
how everyone seems to use the feature). I only kept the variable
space_release_pending, which I use as was used space_pressed before.
Improve the disabling/enabling of extended input events for the
canvas during enter/leave-notify events, in particular, so that
enter-notify events that are a result of pointer ungrabbing don't
erroneously reeanble extended input events.
Something about the unqueueing and requeueing of the entire event
queue during motion compression fries GTK's brain w.r.t. extended
input events. Instead, have gimp_display_shell_compress_motion()
return the first non-compressed event to the caller, making it
responsible for dispatching it after handling the motion event.
When compressing tool motion events, only compress motion events
at the front of the event queue, targeted at the same widget as,
and having similar characteristics to, the initial motion event;
stop compressing upon the first mismatched event.
Previously, all pending motion events targeted at the canvas were
compressed, stopping only at a button-release event targeted at the
canvas. As a result, when adding a guide by dragging from a ruler,
there could be a situation where a pending button-release event
targeted at the ruler would be followed by motion events targeted at
the canvas, with a cleared state mask. These motion events would
get compressed to the initial motion event targeted at the ruler,
resulting in a motion event with a cleared state mask being processed
before the said button-release event. This, in turn, would cause the
guide tool's cursor_update function to be called, while the tool is
still active, emitting a CRITICAL. Sheesh.
The moral of the story is: let's play it safe.
We can't just switch to a GimpOperationTool by using the normal
gimp_context_set_tool() or gimp_context_tool_changed() because it
needs additional initialization like setting an operation at all.
In gimp_gegl_procedure_execute_async(), g_object_set_data() the used
procedure on the newly created tool.
In gimp_display_shell_initialize_tool(), when we re-create the active
tool because of a drawable change, check for the procedure and invoke
it again, instead of simply creating an empty operation tool by
calling gimp_context_tool_changed().
Fix the check that keeps events on overlay widgets from entering the
tool event mechanism, they have no business there.
gimp_overlay_child_realize(): set the embedding widget's event mask on
all overlay children, so their windows will be used as event window,
so their events become distinguishable from events on the parent (the
canvas).
gimp_display_shell_canvas_tool_events(): fix the check for events on
overlays, and skip them for real this time.
the edge of a dock in multi-window-mode
when the pointer is grabbed do not process a
motion-notify-event having the wrong 'device' member.
This avoids a harmful device change.
...in "alt-pressed" mode
Menu activation doesn't cause a focus-out becaus menu keyboard
grabbing is implemented with a simple gtk_grab_add() (the menu popup
never gets the focus). Therefore, the canvas never gets a focus-out
event and the pressed modifiers are stuck.
Fixed by connecting to "grab-notify" on the canvas, and artificially
releasing all modifiers when the canvas is shadowed by a grab.
Add two new tools, GimpGuideTool and GimpSamplePointTool. They are
one-trick-ponies and can only create new or move existing guides and
sample points. They can't be selected from the toolbox, only
temporarily pushed as active tools on top of any active tool using
their public start() APIs.
Use that API to enable them when the rulers are clicked, and replace
the entire guide and sample point moving code in GimpMoveTool and
GimpColorTool by simple calls to that API.
This might look like overkill but can easily be used for other
features like moving guides from within the paint tools (mirror
painting) or gegl filters (preview curtain).
Disable extended input events when the cursor moves to a child of
the canvas widget. Otherwise GTK will try and fail to deliver an
extended event to the child widget, and end up sending it to the
canvas instead.
Letting just tab presses bubble up when an overlay canvas child didn't
handle a key event isn't enough. Instead, let all key presses and
releases bubble up if the canvas itself doesn't have the focus.
Read: don't make assumptions.
Tab key events are not handled by the widget itself, they are supposed
to bubble up until they hit the generic keyboard navigation code
that knows about the focus chain, therefore:
gimp_display_shell_canvas_tool_events(): if an overlay widget is
focussed, don't handle Tab events and toggle dock visibility. Instead,
simply bail out with FALSE so the event reaches te keyboard navigation
code.
Also treat GDK_KEY_KP_Tab like GDK_KEY_Tab all over the place.
Don't try to switch to the move tool if the move tool is already active.
Also never bail out early from gimp_display_shell_space_pressed() so we
don't end up in an inconsistent state.
First version of display rotation, inspired by gimp-painter.
The rotation always happens around the image's center.
The only "UI" for rotating is currently shift+middle-drag and
shift+space-drag. Control constrains the angle to 15 degrees
and is currently the only way to go back to "no rotation".
When updating the tool cursor on BUTTON_PRESS, pass a state *without*
the newly pressed button's mask to gimp_display_shell_update_cursor(),
or it will simply never call the cursor update function. Tool cursors
don't normally change when a mouse button is down.
Reset the tool on image changes again, but not if only the active
drawable changes, so keep bug #678890 closed:
Introduce new dirty flag GIMP_DIRTY_ACTIVE_DRAWABLE and set it on all
tools' dirty_mask except for rect select. Check the new flag when
reseting the active tool because of a drawable change.
