Add a new Color category to the Filter menu. Add the Grayscale
filter under Filter->Color to turn the selected layer to grey colors.
Created GrayscaleFilter.h. Modify Filter.h to allow filters
without parameters.
The prior commits add the `DrawMode` enum to keep track of where
the shape is being drawn from. With this addition, the prior `Mode`
enum name is confusing, so this commit renames it to `FillMode` to
be more explicit :^)
Essentially the same logic as the prior commit, but now for the
`RectangleTool` class. Pressing `alt` lets you draw the rectangle
with the starting position as the center.
Like other common image editing applications, now if you press
`alt` while drawing an ellipse, it uses the starting position as
the center of the ellipse as opposed to one of the corners of the
bounding rect.
The EllipseTool class now keeps track of a `DrawMode`, which is
either `DrawMode::FromCorner` (default), or `DrawMode::FromCenter`
(the option added by this commit).
The `draw_using()` function was modified to now take in the start
and end positions and construct the `ellipse_intersecting_rect`
itself, since we need to construct it differently based on the
drawing mode.
Previously, if you used one of the keyboard shortcuts to select a
different tool, it didn't change the cursor to the corresponding
one till you clicked somewhere / did something else to trigger an
update. This was pretty jarring since there's no indication as to
whether the tool change was successful or not.
This patch just calls `set_override_cursor()` when a valid active
tool is set to immediately update it.
In general, I think `opt == x` looks much nicer than
`opt.has_value() && opt.value() == x`, so I'm updating
the remaining few instances I could find with some regex
magic in my search.
Some tools (e.g. ZoomTool) doesn't need layer to work. This commit
makes mouse events fire even if there is no layer. This fixes
a bug that ZoomTool didn't work when there is no layers.
This commit adds a Tool::MouseEvent struct, which contains events that
may be needed by tools: layer-relative, image-relative and raw (editor-
relative) event.
The raw event is used by ZoomTool to properly pan the view. This fixes
a bug which caused image to snap out of sight.
This allows for typing [8] instead of [8, 8, 8, 8] to specify the same
margin on all edges, for example. The constructors follow CSS' style of
specifying margins. The added constructors are:
- Margins(int all): Sets the same margin on all edges.
- Margins(int vertical, int horizontal): Sets the first argument to top
and bottom margins, and the second argument to left and right margins.
- Margins(int top, int vertical, int bottom): Sets the first argument to
the top margin, the second argument to the left and right margins,
and the third argument to the bottom margin.
Previously the argument order for Margins was (left, top, right,
bottom). To make it more familiar and closer to how CSS does it, the
argument order is now (top, right, bottom, left).
This adds on_tool_activation() to Tool which GuideTool can use
to show guides, if they're hidden, when it's activated. Also
show guides on mousedown since there's no use in drawing invisible
guides.
Tightening of the update rect when firing the marching ants timer
unfortunately meant that only finalized selections would be redrawn,
and any new selection drawn outside of the update rect would not
update.
This adds support for the Tools in PixelPaint to use different cursors
within ImageEditor. For now most of them get the crosshair cursor since
it's the most fitting, but in the future we will want to add custom
cursors.
This tightens the update rects for EraseTool, BrushTool And the marching
ants update in Selection. Inflate Selection update rect by 10x10 to
avoid misalignment when zoomed out.
Previously using PenTool while zoomed in could cause rendering glitches
since the update rect was misaligned with the image, most likely because
of rounding errors.
Loosening the rect with 1 pixel on either side takes care of this.
This patch adds the logic for the GuideTool. Pulling in from outside the
image creates a new Guide, moving a Guide outside of the image deletes
it and a Guide can be deleteted via the context menu.
A Guide is considered clicked when the cursor is less than 20 pixels
away from the line.
Previously changing tools while simultaneously using a widget like a
slider would result in a event_dispatch() failure.
Instead use a StackWidget to set the active widget.
This adds a tooltip to all the slider properties showing their
current value. Previously there was no indication of what
value they had. Also rename the SprayTool property 'thickness' to
'size' like BrushTool calls it.
Applications previously had to create a GUI::Menubar object, add menus
to it, and then call GUI::Window::set_menubar().
This patch introduces GUI::Window::add_menu() which creates the menubar
automatically and adds items to it. Application code becomes slightly
simpler as a result. :^)
AK's version should see better inlining behaviors, than the LibM one.
We avoid mixed usage for now though.
Also clean up some stale math includes and improper floatingpoint usage.
Previously m_constrain_angle could end up not being reset if the
keyup-event was lost, for example when opening a dialog. Instead check
the modifiers in on_mousemove().
