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add a jscene_owning() function to access scenes from widget scopes

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Lephenixnoir 2021-05-12 15:24:12 +02:00
parent 120b33c9f3
commit 350a36908b
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3 changed files with 21 additions and 5 deletions
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10
include/justui/jfkeys.h
View file

@ -17,7 +17,7 @@
* MENU KEYS are used for functions that open menus or navigate between tabs * MENU KEYS are used for functions that open menus or navigate between tabs
on a same application. The name comes from their primary usage in the on a same application. The name comes from their primary usage in the
system apps. Navigation functions should be easilty reversible and fairly system apps. Navigation functions should be easily reversible and fairly
failproof. Menu keys are black rectangular keys with a chipped corner. failproof. Menu keys are black rectangular keys with a chipped corner.
* ENTRY KEYS are used for catalog entries such as the leaves of PRGM's many * ENTRY KEYS are used for catalog entries such as the leaves of PRGM's many
@ -29,8 +29,8 @@
* SPECIAL KEYS are used for special functions, such as scrolling to the next * SPECIAL KEYS are used for special functions, such as scrolling to the next
set of functions keys when there are several pages, important functions set of functions keys when there are several pages, important functions
that should catch attention, or particulary unsafe actions. They are round that should catch attention, or particularly unsafe actions. They are
white keys. round white keys.
On fx-CG 50, the keys are drawn dynamically using gint's default font, and On fx-CG 50, the keys are drawn dynamically using gint's default font, and
specified using 6 strings that give the type and name of the keys: specified using 6 strings that give the type and name of the keys:
@ -40,10 +40,10 @@
* "@NAME" for an action key; * "@NAME" for an action key;
" "#NAME" for a special key. " "#NAME" for a special key.
The names are separated by semicolons, eg "/F1;;/F3;.F4;@F5;#F6". Several The names are separated by semicolons, eg. "/F1;;/F3;.F4;@F5;#F6". Several
sets of function keys can be defined if separated by a '|' character. For sets of function keys can be defined if separated by a '|' character. For
instance, "/F1;#F2|/F1" represents a function bar where the F2 instance, "/F1;#F2|/F1" represents a function bar where the F2
function can be hidden by swithing from level 0 to level 1. function can be hidden by switching from level 0 to level 1.
On fx-9860G, there is not enough space to generate keys on-the-fly, so the On fx-9860G, there is not enough space to generate keys on-the-fly, so the
full specification is just an image. The convention for the image is to be full specification is just an image. The convention for the image is to be

5
include/justui/jscene.h
View file

@ -46,6 +46,11 @@ jscene *jscene_create(int x, int y, int w, int h, void *parent);
The position is (0,0) and the size is (DWIDTH,DHEIGHT). */ The position is (0,0) and the size is (DWIDTH,DHEIGHT). */
jscene *jscene_create_fullscreen(void *parent); jscene *jscene_create_fullscreen(void *parent);
/* jscene_owning(): Find the scene that manages a widget (if any)
This functions walks up the widget tree and locates the scene owning the
specified widget, if there is one; otherwise returns NULL. */
jscene *jscene_owning(void *widget);
/* jscene_layout(): Layout a scene /* jscene_layout(): Layout a scene
This is automatically called by jscene_render(), but may be useful if you This is automatically called by jscene_render(), but may be useful if you
need to know the size of your widgets before rendering. The layout is need to know the size of your widgets before rendering. The layout is

11
src/jscene.c
View file

@ -64,6 +64,17 @@ jscene *jscene_create_fullscreen(void *parent)
return jscene_create(0, 0, DWIDTH, DHEIGHT, parent); return jscene_create(0, 0, DWIDTH, DHEIGHT, parent);
} }
jscene *jscene_owning(void *w0)
{
J_CAST(w)
while(w) {
if(w->type == jscene_type_id) return (void *)w;
w = w->parent;
}
return NULL;
}
void jscene_render(jscene *scene) void jscene_render(jscene *scene)
{ {
jwidget_layout(scene); jwidget_layout(scene);