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New function dlg_editbox_select_range.

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This manipulates the selection inside an edit box, to select a
specific range of characters in the contained text. The idea is that
you can use it as a means of error highlighting, if the user has
entered something invalid in that edit box and you want to draw their
attention to the specific location of the part you're unhappy with.
This commit is contained in:
Simon Tatham 2022-06-25 13:00:06 +01:00
parent e8a8c2535d
commit 1a568e3535
3 changed files with 31 additions and 0 deletions
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2
dialog.h
View File

@ -573,6 +573,8 @@ void dlg_checkbox_set(dlgcontrol *ctrl, dlgparam *dp, bool checked);
bool dlg_checkbox_get(dlgcontrol *ctrl, dlgparam *dp);
void dlg_editbox_set(dlgcontrol *ctrl, dlgparam *dp, char const *text);
char *dlg_editbox_get(dlgcontrol *ctrl, dlgparam *dp); /* result must be freed by caller */
void dlg_editbox_select_range(dlgcontrol *ctrl, dlgparam *dp,
size_t start, size_t len);
/* The `listbox' functions can also apply to combo boxes. */
void dlg_listbox_clear(dlgcontrol *ctrl, dlgparam *dp);
void dlg_listbox_del(dlgcontrol *ctrl, dlgparam *dp, int index);

21
unix/dialog.c
View File

@ -357,6 +357,27 @@ char *dlg_editbox_get(dlgcontrol *ctrl, dlgparam *dp)
unreachable("bad control type in editbox_get");
}
void dlg_editbox_select_range(dlgcontrol *ctrl, dlgparam *dp,
size_t start, size_t len)
{
struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
assert(uc->ctrl->type == CTRL_EDITBOX);
GtkWidget *entry = NULL;
#if GTK_CHECK_VERSION(2,4,0)
if (uc->combo)
entry = gtk_bin_get_child(GTK_BIN(uc->combo));
#endif
if (uc->entry)
entry = uc->entry;
assert(entry && "we should have a GtkEntry one way or another");
gtk_editable_select_region(GTK_EDITABLE(entry), start, start + len);
}
#if !GTK_CHECK_VERSION(2,4,0)
static void container_remove_and_destroy(GtkWidget *w, gpointer data)
{

8
windows/controls.c
View File

@ -2217,6 +2217,14 @@ char *dlg_editbox_get(dlgcontrol *ctrl, dlgparam *dp)
return GetDlgItemText_alloc(dp->hwnd, c->base_id+1);
}
void dlg_editbox_select_range(dlgcontrol *ctrl, dlgparam *dp,
size_t start, size_t len)
{
struct winctrl *c = dlg_findbyctrl(dp, ctrl);
assert(c && c->ctrl->type == CTRL_EDITBOX);
SendDlgItemMessage(dp->hwnd, c->base_id+1, EM_SETSEL, start, start+len);
}
/* The `listbox' functions can also apply to combo boxes. */
void dlg_listbox_clear(dlgcontrol *ctrl, dlgparam *dp)
{