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| author | Yuuki Harano <masm+github@masm11.me> | 2021-12-04 15:54:37 +0900 |
|---|---|---|
| committer | Yuuki Harano <masm+github@masm11.me> | 2021-12-04 15:54:37 +0900 |
| commit | 729311c22b230faab9f8714ca2b6cb8f73ac0737 (patch) | |
| tree | a9fbddba89c584e5d962aee38096258c3f2c4729 /src/pgtkterm.h | |
| parent | f638541785f0641f3010fa9c4393a4c32710d47e (diff) | |
| download | emacs-729311c22b230faab9f8714ca2b6cb8f73ac0737.tar.gz | |
Keep track of scale factor by atimer and recreate cairo_surface_t
Otherwise texts become blurry when a frame moved from 1x monitor
to 2x monitor. I need GTK's such signal, but there isn't. Instead
I watch frame's monitor's scale factor periodically. We can see
blurriness for a short time, but it is gone soon.
* src/pgtkfns.c (update_watched_scale_factor): New function to check
scale factor and recreate cairo_surface_t if changed.
* src/pgtkfns.c (Fx_create_frame): Initialize atimer.
(Fx_show_tip): Add an argument.
* src/pgtkterm.c (FRAME_CR_SURFACE_DESIRED_WIDTH): Move macros to pgtkterm.h
(x_free_frame_resources): Free atimer.
(size_allocate): Add an argument.
(pgtk_cr_update_surface_desired_size): Add an argument. Recreate if it
is true.
* src/pgtkterm.h (struct pgtk_output): New members.
(FRAME_CR_SURFACE_DESIRED_HEIGHT): Move macros from pgtkterm.c
Diffstat (limited to 'src/pgtkterm.h')
| -rw-r--r-- | src/pgtkterm.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/src/pgtkterm.h b/src/pgtkterm.h index c16221da832..e76411cf021 100644 --- a/src/pgtkterm.h +++ b/src/pgtkterm.h @@ -398,6 +398,13 @@ struct pgtk_output frame, or IMPLICIT if we received an EnterNotify. FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */ int focus_state; + + /* Keep track of scale factor. If monitor's scale factor is changed, or + monitor is switched and scale factor is changed, then recreate cairo_t + and cairo_surface_t. I need GTK's such signal, but there isn't, so + I watch it periodically with atimer. */ + double watched_scale_factor; + struct atimer *scale_factor_atimer; }; /* this dummy decl needed to support TTYs */ @@ -521,6 +528,10 @@ enum (! (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT (f)) ? 0 \ : FRAME_SCROLL_BAR_COLS (f)) +#define FRAME_CR_SURFACE_DESIRED_WIDTH(f) \ + ((f)->output_data.pgtk->cr_surface_desired_width) +#define FRAME_CR_SURFACE_DESIRED_HEIGHT(f) \ + ((f)->output_data.pgtk->cr_surface_desired_height) /* Display init/shutdown functions implemented in pgtkterm.c */ extern struct pgtk_display_info *pgtk_term_init (Lisp_Object display_name, @@ -575,7 +586,7 @@ extern void x_set_z_group (struct frame *f, Lisp_Object new_value, Lisp_Object old_value); /* Cairo related functions implemented in pgtkterm.c */ -extern void pgtk_cr_update_surface_desired_size (struct frame *, int, int); +extern void pgtk_cr_update_surface_desired_size (struct frame *, int, int, bool); extern cairo_t *pgtk_begin_cr_clip (struct frame *f); extern void pgtk_end_cr_clip (struct frame *f); extern void pgtk_set_cr_source_with_gc_foreground (struct frame *f, |