When the image's alpha channel is invisible, paint regions outside
the image contents as black, instead of using a checkboard pattern.
This is especially notable when viewing the image in "show all"
mode.
and remove all clipping hacks for drawing the canvas background, turns
out they never worked and we were relying on the pattern set on the
window, gah! This optimizes away one entire step of drawing of image
size, for each expose...
Add gimp_display_shell_[un]transform_with_scale(), which are
similar to gimp_display_shell_[un]transform(), however, they
transform the bounding box to/from uniformly-scaled image space,
given the scale factor as a parameter. These functions are more
accurate than using gimp_display_shell_[un]transform() and applying
the scaling separately, in particular, when the scale matches the
(horizontal or vertical) display scale.
Use these functions in gimp_display_shell_draw_image(), to avoid an
off-by-one error when transforming screen-space chunks to image-
space chunks, which leads to the symptoms described in the bug.
Fix another potential off-by-one error affecting non-uniformly
scaled images, and window scale factors other than 1.
Based on a patch by Massimo.
Move the entire image-space/screen-space transformation logic from
gimp_display_shell_render() to gimp_display_shell_draw_image(), so
that the former works entirely in image space, and do the chunking
and clipping in screen-space, making sure that image-space chunks
are never larger than
GIMP_DISPLAY_RENDER_BUF_WIDTH x GIMP_DISPLAY_RENDER_BUF_HEIGHT,
even when the window's scale factor is greater than 1.
Add a GIMP_BRICK_WALL environment variable, which, when set, shows
the screen-space chunk bounds.
Pass the display scroll offset down to gimp_cairo_stipple_pattern_create()
and set it as offset on the created cairo pattern, so stipple patterns
look the same no matter how the display is scrolled.
Enhance the existing but unused display scaling (hidpi/retina) support
to work independently in x and y direction, and adjust the scaling
factors accordingly when dot-for-dot is off and xres != yres.
Increase GIMP_DISPLAY_RENDER_MAX_SCALE from 2.0 to 4.0 and adjust the
rendering chunk size dynamically so we never render chunks that do
not fit into the GimpDisplayXfer buffers.
Added complete API for zoom/unzoom (scale and scroll) and
rotate/unrotate, with the same set of functions as the existing
transform/untransform. Moved some special case functions to the
namespaces they belong.
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".
the changes are simply copied from the gtk3-port branch, reducing the
number of diffs, and enabling hacking on drawing stuff in master while
keeping the branch easily rebasable.
And along with it a lot of stuff like the drawable preview cache, the
gegl tile manager backend, temporary gimp_gegl_buffer_foo() stuff, and
the remaining bits of performance.
The projection is in an evil semi-ported state which makes it work
ok-ish for stuff like layer moving, but absolutely unbearable for
painting, there is also an off-by-one rendering glitch at some zoom
levels.
these are the same nearly always, but during
an image-scale, the image size is updated early
and expose redraw following dialog destruction
uses the projection before the scale.
Basically this patch partly restores the code
before commit 8b8e67ffe2
which is the last bit of non-item drawing of stuff that is not
somehow the image itself... wheee!
This involves reverting commit
6bce0641d4 and adding back all the
vectors handlers that were in gimpdisplayshell-callbacks.c before.
Change the callbacks to manage proxy items for all the image's
vectors.
and use it to draw the layer boundary. Remove a lot of stuff
that was there only to draw the boundary before:
- remvoe all layer boundary stuff from the selection code
- remove gimp_display_shell_draw_layer()
- remove enum values GIMP_SELECTION_LAYER_ON,OFF from core-enums.h
- remove all lines calling gimp_image_selection_control() with
the removed enum values
- remove gimp_layer_boundary()
- Add signals GimpImage::guide_added(), removed() and moved()
- Remove singal GimpImage::update_guide()
- Adapt core code to emit the new signals instead of update_guide()
- Have the shell connect to the new signals and update guide canvas
items as needed
- Remove gimp_display_shell_draw_guides()
- Add GimpImage signal "sample-point-moved" and emit it when needed
- Let the shell connect to the sample point add, remove and move signals
and update the canvas items accordingly
- Remove gimp_display_shell_draw_sample_points()
Instead of blending the scaled image data onto the checkerboard and
then painting this image to the screen, render the image data into
an ARGB cairo image surface. Then paint a checkerboard on the canvas
and the image on top of it.
