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| -rw-r--r-- | experiments/combobox_darwin.m | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/experiments/combobox_darwin.m b/experiments/combobox_darwin.m new file mode 100644 index 0000000..da9b658 --- /dev/null +++ b/experiments/combobox_darwin.m @@ -0,0 +1,156 @@ +// 17 may 2014 + +#include "objc_darwin.h" +#include <AppKit/NSPopUpButton.h> +#include <AppKit/NSComboBox.h> +#include <AppKit/NSArrayController.h> + +/* +Cocoa doesn't have combo boxes in the sense that other systems do. NSPopUpButton is not editable and technically behaves like a menu on a menubar. NSComboBox is editable and is the more traditional combo box, but the edit field and list are even more separated than they are on other platforms. + +Unfortunately, their default internal storage mechanisms exhibit the automatic selection behavior I DON'T want, so we're going to have to do that ourselves. + +You will notice that a bunch of functions here call functions in listbox_darwin.m. How convenient =P +*/ + +@interface combobox : NSObject { +@public + NSPopUpButton *pb; + NSComboBox *cb; + NSArrayController *ac; +} +// and these are so we can use a combobox like a reegular control +- (void)setHidden:(BOOL)hidden; +- (void)setFont:(NSFont *)font; +- (void)setFrame:(NSRect)r; +- (NSRect)frame; +- (void)sizeToFit; +@end + +@implementation combobox + +#define OVERRIDE(sig, msg) \ + sig \ + { \ + if (pb != nil) { \ + [pb msg]; \ + return; \ + } \ + [cb msg]; \ + } + +OVERRIDE(- (void)setHidden:(BOOL)hidden, setHidden:hidden) +OVERRIDE(- (void)setFont:(NSFont *)font, setFont:font) +OVERRIDE(- (void)setFrame:(NSRect)r, setFrame:r) + +- (NSRect)frame +{ + if (pb != nil) + return [pb frame]; + return [cb frame]; +} + +OVERRIDE(- (void)sizeToFit, sizeToFit) + +@end + +extern NSRect dummyRect; + +#define to(T, x) ((T *) (x)) +#define tocombobox(x) to(combobox, (x)) + +#define toNSInteger(x) ((NSInteger) (x)) +#define fromNSInteger(x) ((intptr_t) (x)) + +#define COMBOBOXKEY @"cbitem" +static NSString *comboboxKey = COMBOBOXKEY; +static NSString *comboboxKeyPath = @"arrangedObjects." COMBOBOXKEY; + +id makeCombobox(BOOL editable) +{ + combobox *c; + + c = [combobox new]; + c->pb = nil; + c->cb = nil; + c->ac = makeListboxArray(); +#define BIND bind:@"contentValues" toObject:c->ac withKeyPath:comboboxKeyPath options:nil + if (!editable) { + c->pb = [[NSPopUpButton alloc] + initWithFrame:dummyRect + pullsDown:NO]; + [c->pb BIND]; + } else { + c->cb = [[NSComboBox alloc] + initWithFrame:dummyRect]; + [c->cb setUsesDataSource:NO]; + [c->cb BIND]; + } + return c; +} + +void addCombobox(id parentWindow, id cbox) +{ + combobox *c; + + c = tocombobox(cbox); + if (c->pb != nil) { + addControl(parentWindow, c->pb); + return; + } + addControl(parentWindow, c->cb); +} + +id comboboxText(id cbox, BOOL editable) +{ + combobox *c; + + c = tocombobox(cbox); + if (!editable) + return [c->pb titleOfSelectedItem]; + return [c->cb stringValue]; +} + +void comboboxAppend(id cbox, BOOL editable, id str) +{ + combobox *c; + + c = tocombobox(cbox); + listboxArrayAppend(c->ac, toListboxItem(comboboxKey, str)); +} + +void comboboxInsertBefore(id cbox, BOOL editable, id str, intptr_t before) +{ + combobox *c; + + c = tocombobox(cbox); + listboxArrayInsertBefore(c->ac, toListboxItem(comboboxKey, str), before); +} + +intptr_t comboboxSelectedIndex(id cbox) +{ + combobox *c; + + c = tocombobox(cbox); + if (c->pb != nil) + return fromNSInteger([c->pb indexOfSelectedItem]); + return fromNSInteger([c->cb indexOfSelectedItem]); +} + +void comboboxDelete(id cbox, intptr_t index) +{ + combobox *c; + + c = tocombobox(cbox); + listboxArrayDelete(c->ac, index); +} + +intptr_t comboboxLen(id cbox) +{ + combobox *c; + + c = tocombobox(cbox); + if (c->pb != nil) + return fromNSInteger([c->pb numberOfItems]); + return fromNSInteger([c->cb numberOfItems]); +} |