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| author | Stefan Wildemann <metalstrolch@users.noreply.github.com> | 2021-09-13 11:36:50 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-09-13 11:36:50 +0200 |
| commit | 0ed1660858a6b3055077f3b0d245c0316beb621c (patch) | |
| tree | 64faca31f26907f3e46cab8622e792839386cec0 /navit/navit.c | |
| parent | da065b411d6bee9e7f9b7424bb615d64c7e4cc54 (diff) | |
| download | navit-0ed1660858a6b3055077f3b0d245c0316beb621c.tar.gz | |
Fix:core: cancel drawing on resize request (#1142)
* Fix:core: cancel drawing on resize request
This commit causes navit to cancel async drawing in case of resize
request. Drawing is started again after that. this should effectively
cause a redraw on subsequent calls to resize. Some graphics like qt5
call resize for both dimension changes if the wigdet get's resized.
* Fix:graphics:qt5 Clear pixmap on resize
To remove ugly artefacts after resizing the widget until navit completes
to redraw the screen the widgets pixmap is cleared.
Diffstat (limited to 'navit/navit.c')
| -rw-r--r-- | navit/navit.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/navit/navit.c b/navit/navit.c index f80890e2c..14087c4ed 100644 --- a/navit/navit.c +++ b/navit/navit.c @@ -490,8 +490,12 @@ void navit_handle_resize(struct navit *this_, int w, int h) { graphics_set_rect(this_->gra, &sel.u.p_rect); if (callback) callback_list_call_attr_1(this_->attr_cbl, attr_graphics_ready, this_); - if (this_->ready == 3) + if (this_->ready == 3) { + /* About to resize. Cancel drawing whatever it is */ + graphics_draw_cancel(this_->gra, this_->displaylist); + /* draw again even if we did not cancel anything */ navit_draw_async(this_, 1); + } } static void navit_resize(void *data, int w, int h) { |