/* keyboard shortcuts: CR or A/a accepts, ESC or C/c cancels */
static void hit_key(window w, int key)
{
if(key == '\n' || tolower(key) == 'a') {
flashcontrol(bApply);
activatecontrol(bApply);
}
if(key == ESC || tolower(key) == 'c') {
flashcontrol(bCancel);
activatecontrol(bCancel);
}
}
static void adjust_menus_top_down(object obj)
{
/* Recursively step up the list. */
if (! obj)
return;
adjust_menus_top_down(obj->parent);
/* Adjust menubar then child menus as we descend. */
if (obj->kind == MenubarObject) {
activatecontrol(obj);
DrawMenuBar(obj->parent->handle);
}
else if (obj->kind == MenuObject)
activatecontrol(obj);
}
static void button_keydown(control c, int ch)
{
if (ch == ' ') {
flashcontrol(c);
activatecontrol(c);
}
}
static void radio_hit(control c)
{
if (!ischecked(c)) {
uncheck_neighbours(c);
check(c);
activatecontrol(c);
}
}
/*
* Handle the menu selection. wParam is what WM_[SYS]COMMAND sets
* it to i.e. the object id number. The menus will already have
* received WM_INITMENU messages so they will be up-to-date.
*/
PROTECTED
void handle_menu_id (WPARAM wParam)
{
object obj;
obj = find_by_id(wParam);
if (obj)
activatecontrol(obj);
}
static void button_mouseup(control c, int buttons, point xy)
{
if (!isarmed(c))
return;
disarm(c);
unhighlight(c);
if (ptinr(xy, getrect(c)))
activatecontrol(c);
}
static void checkbox_keydown(control c, int ch)
{
if (ch == ' ') {
if (ischecked(c))
uncheck(c);
else
check(c);
activatecontrol(c);
}
}
/*
* The adjust_menu function is called just after the program
* receives a WM_INITMENU message. This message is sent even if
* the user is attempting to use the system menu, which is nice.
* We use this function to keep menubars and menus up-to-date by
* calling their respective action functions.
*/
PROTECTED
void adjust_menu(WPARAM wParam)
{
object obj;
obj = find_by_handle((HANDLE)wParam);
if (obj) {
activatecontrol(obj);
if (obj->kind == MenubarObject)
DrawMenuBar(obj->parent->handle);
}
}
static void hit_key(window w, int key)
{
button btn;
char *name = NULL;
w = parentwindow(w);
if (data(w) == NULL)
return;
if ((btn = data(w)->yes) != NULL) {
name = getname(btn);
if ((key == '\n') || (tolower(name[0]) == tolower(key)))
{
flashcontrol(btn);
activatecontrol(btn);
return;
}
}
if ((btn = data(w)->cancel) != NULL) {
name = getname(btn);
if ((key == ESC) || (tolower(name[0]) == tolower(key)))
{
flashcontrol(btn);
activatecontrol(btn);
return;
}
}
if ((btn = data(w)->no) != NULL) {
name = getname(btn);
if ((key == ESC) || (tolower(name[0]) == tolower(key)))
{
flashcontrol(btn);
activatecontrol(btn);
return;
}
}
}
static void checkbox_mouseup(control c, int buttons, point xy)
{
if (! isenabled(c))
return;
disarm(c);
unhighlight(c);
if (! ptinr(xy, getrect(c)))
return;
if (ischecked(c))
uncheck(c);
else
check(c);
activatecontrol(c);
}
PROTECTED
int handle_menu_key(WPARAM wParam)
{
object win, obj;
win = find_by_handle(GetFocus());
if (win) {
if (win->kind != WindowObject)
win = win->parent;
obj = find_by_key(win, wParam);
if (obj) {
adjust_menus_top_down(obj);
if (isenabled(obj)) /* Don't do menu actions which are greyed out. CJ */
activatecontrol(obj);
return 1;
}
}
return 0;
}
/*
* Activate a control's action function. We do several things here.
* Checking to see what kind of control it is, we handle some
* events and discard others. We automatically toggle the state of
* checkboxes and radio buttons, and handle listbox changes and
* allow text box update events to call the control's action.
*/
PROTECTED
void handle_control(HWND hwnd, UINT message)
{
object obj;
int index;
obj = find_by_handle(hwnd);
if ((! obj) || (! (obj->state & Enabled)))
return;
/* Only let certain events cause activation. */
switch (obj->kind)
{
case CheckboxObject:
if (obj->state & Checked)
uncheck(obj);
else
check(obj);
break;
case RadioObject:
if (!(obj->state & Checked)) {
uncheck_neighbours(obj);
check(obj);
}
break;
case ListboxObject:
/* Ignore all but selection-change events. */
if (message != LBN_SELCHANGE)
return;
index = sendmessage(hwnd, LB_GETCURSEL, 0, 0L);
obj->value = index;
break;
case MultilistObject:
/* Ignore all but selection-change events. */
if (message != LBN_SELCHANGE)
return;
index = sendmessage(hwnd, LB_GETCARETINDEX, 0, 0L);
/* We do want to see de-selection events too
if (! sendmessage(hwnd, LB_GETSEL, index, 0L))
return;*/
obj->value = index;
break;
case DroplistObject:
case DropfieldObject:
/* Ignore all but selection-change events. */
if (message != CBN_SELCHANGE)
return;
index = sendmessage(hwnd, CB_GETCURSEL, 0, 0L);
obj->value = index;
break;
case FieldObject:
case TextboxObject:
if (message == EN_MAXTEXT) {
/* increase the character limit in the editor by 50%
if the limit is reached, but this should not
happen */
setlimittext(obj, 1.5 * getlimittext(obj));
}
/* Ignore everything else but killfocus. */
else if (message != EN_KILLFOCUS)
return;
break;
default:
break;
}
/* activate the control's callback */
activatecontrol(obj);
}
