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d8f8c8972a
Partly, this just seems more sensible, since it may well vary per platform beyond the ability of intorptr to specify. But more immediately it means the definition of the HELPCTX macro doesn't have to use the P() function from dialog.h, which isn't defined in any circumstances outside the config subsystem. And I'm about to want to put a help context well outside that subsystem.
61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
/*
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* Helper function from the dialog.h mechanism.
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*/
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#include "putty.h"
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#include "misc.h"
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#include "dialog.h"
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void ctrlset_normalise_aligns(struct controlset *s)
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{
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/*
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* The algorithm in here is quadratic time. Never on very much data, but
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* even so, let's avoid bothering to use it where possible. In most
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* controlsets, there's no use of align_next_to in any case, so we have
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* nothing to do.
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*/
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for (size_t j = 0; j < s->ncontrols; j++)
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if (s->ctrls[j]->align_next_to)
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goto must_do_something;
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/* If we fell out of this loop, there's nothing to do here */
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return;
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must_do_something:;
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size_t *idx = snewn(s->ncontrols, size_t);
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/*
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* Follow align_next_to links to identify, for each control, the least
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* index within this controlset of things it's linked to. That way,
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* controls with the same idx[j] will be in the same alignment class.
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*/
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for (size_t j = 0; j < s->ncontrols; j++) {
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dlgcontrol *c = s->ctrls[j];
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idx[j] = j;
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if (c->align_next_to) {
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for (size_t k = 0; k < j; k++) {
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if (s->ctrls[k] == c->align_next_to) {
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idx[j] = idx[k];
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break;
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}
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}
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}
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}
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/*
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* Having done that, re-link each control to the most recent one in its
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* class, so that the links form a backward linked list.
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*/
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for (size_t j = 0; j < s->ncontrols; j++) {
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dlgcontrol *c = s->ctrls[j];
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c->align_next_to = NULL;
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for (size_t k = j; k-- > 0 ;) {
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if (idx[k] == idx[j]) {
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c->align_next_to = s->ctrls[k];
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break;
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}
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}
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}
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sfree(idx);
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}
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