144 lines
3.1 KiB
Objective-C
144 lines
3.1 KiB
Objective-C
// 14 august 2015
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#import "uipriv_darwin.h"
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// NSComboBoxes have no intrinsic width; we'll use the default Interface Builder width for them.
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// NSPopUpButton is fine.
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#define comboboxWidth 96
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struct uiCombobox {
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uiDarwinControl c;
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NSPopUpButton *pb;
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NSArrayController *pbac;
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void (*onSelected)(uiCombobox *, void *);
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void *onSelectedData;
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};
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@interface comboboxDelegateClass : NSObject {
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struct mapTable *comboboxes;
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}
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- (IBAction)onSelected:(id)sender;
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- (void)registerCombobox:(uiCombobox *)c;
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- (void)unregisterCombobox:(uiCombobox *)c;
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@end
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@implementation comboboxDelegateClass
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- (id)init
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{
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self = [super init];
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if (self)
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self->comboboxes = newMap();
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return self;
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}
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- (void)dealloc
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{
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mapDestroy(self->comboboxes);
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[super dealloc];
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}
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- (IBAction)onSelected:(id)sender
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{
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uiCombobox *c;
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c = uiCombobox(mapGet(self->comboboxes, sender));
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(*(c->onSelected))(c, c->onSelectedData);
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}
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- (void)registerCombobox:(uiCombobox *)c
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{
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mapSet(self->comboboxes, c->pb, c);
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[c->pb setTarget:self];
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[c->pb setAction:@selector(onSelected:)];
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}
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- (void)unregisterCombobox:(uiCombobox *)c
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{
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[c->pb setTarget:nil];
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mapDelete(self->comboboxes, c->pb);
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}
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@end
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static comboboxDelegateClass *comboboxDelegate = nil;
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uiDarwinControlAllDefaultsExceptDestroy(uiCombobox, pb)
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static void uiComboboxDestroy(uiControl *cc)
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{
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uiCombobox *c = uiCombobox(cc);
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[comboboxDelegate unregisterCombobox:c];
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[c->pb unbind:@"contentObjects"];
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[c->pb unbind:@"selectedIndex"];
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[c->pbac release];
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[c->pb release];
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uiFreeControl(uiControl(c));
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}
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void uiComboboxAppend(uiCombobox *c, const char *text)
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{
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[c->pbac addObject:toNSString(text)];
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}
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intmax_t uiComboboxSelected(uiCombobox *c)
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{
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return [c->pb indexOfSelectedItem];
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}
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void uiComboboxSetSelected(uiCombobox *c, intmax_t n)
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{
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[c->pb selectItemAtIndex:n];
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}
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void uiComboboxOnSelected(uiCombobox *c, void (*f)(uiCombobox *c, void *data), void *data)
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{
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c->onSelected = f;
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c->onSelectedData = data;
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}
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static void defaultOnSelected(uiCombobox *c, void *data)
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{
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// do nothing
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}
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uiCombobox *uiNewCombobox(void)
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{
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uiCombobox *c;
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NSPopUpButtonCell *pbcell;
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uiDarwinNewControl(uiCombobox, c);
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c->pb = [[NSPopUpButton alloc] initWithFrame:NSZeroRect pullsDown:NO];
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[c->pb setPreferredEdge:NSMinYEdge];
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pbcell = (NSPopUpButtonCell *) [c->pb cell];
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[pbcell setArrowPosition:NSPopUpArrowAtBottom];
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// TODO font
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// NSPopUpButton doesn't work like a combobox
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// - it automatically selects the first item
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// - it doesn't support duplicates
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// but we can use a NSArrayController and Cocoa bindings to bypass these restrictions
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c->pbac = [NSArrayController new];
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[c->pbac setAvoidsEmptySelection:NO];
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[c->pbac setSelectsInsertedObjects:NO];
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[c->pbac setAutomaticallyRearrangesObjects:NO];
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[c->pb bind:@"contentValues"
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toObject:c->pbac
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withKeyPath:@"arrangedObjects"
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options:nil];
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[c->pb bind:@"selectedIndex"
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toObject:c->pbac
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withKeyPath:@"selectionIndex"
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options:nil];
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if (comboboxDelegate == nil) {
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comboboxDelegate = [comboboxDelegateClass new];
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[delegates addObject:comboboxDelegate];
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}
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[comboboxDelegate registerCombobox:c];
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uiComboboxOnSelected(c, defaultOnSelected, NULL);
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return c;
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}
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