69 lines
2.2 KiB
Objective-C
69 lines
2.2 KiB
Objective-C
// 14 august 2015
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#import "uipriv_darwin.h"
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// TODO the selection should NOT be lost when starting a new drag
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struct uiRadioButtons {
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uiDarwinControl c;
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NSMatrix *matrix;
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};
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uiDarwinControlAllDefaults(uiRadioButtons, matrix)
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static NSButtonCell *cellAt(uiRadioButtons *r, uintmax_t n)
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{
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return (NSButtonCell *) [r->matrix cellAtRow:n column:0];
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}
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void uiRadioButtonsAppend(uiRadioButtons *r, const char *text)
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{
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intmax_t prevSelection;
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// renewRows:columns: will reset the selection
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prevSelection = [r->matrix selectedRow];
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[r->matrix renewRows:([r->matrix numberOfRows] + 1) columns:1];
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[cellAt(r, [r->matrix numberOfRows] - 1) setTitle:toNSString(text)];
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// this will definitely cause a resize in at least the vertical direction, even if not in the horizontal
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// DO NOT CALL sizeToCells! this will glitch out; see http://stackoverflow.com/questions/32162562/dynamically-adding-cells-to-a-nsmatrix-laid-out-with-auto-layout-has-weird-effec
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// and renew the previous selection
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// we need to turn on allowing empty selection for this to work properly on the initial state
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// TODO this doesn't actually work
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[r->matrix setAllowsEmptySelection:YES];
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[r->matrix selectCellAtRow:prevSelection column:0];
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[r->matrix setAllowsEmptySelection:NO];
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}
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uiRadioButtons *uiNewRadioButtons(void)
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{
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uiRadioButtons *r;
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NSButtonCell *cell;
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uiDarwinNewControl(uiRadioButtons, r);
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// we have to set up the NSMatrix this way (prototype first)
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// otherwise we won't be able to change its properties (such as the button type)
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cell = [NSButtonCell new];
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[cell setButtonType:NSRadioButton];
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// works on NSCells too (same selector)
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uiDarwinSetControlFont((NSControl *) cell, NSRegularControlSize);
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r->matrix = [[NSMatrix alloc] initWithFrame:NSZeroRect
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mode:NSRadioModeMatrix
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prototype:cell
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numberOfRows:0
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numberOfColumns:0];
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// we manually twiddle this property to allow programmatic non-selection state
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[r->matrix setAllowsEmptySelection:NO];
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[r->matrix setSelectionByRect:YES];
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[r->matrix setIntercellSpacing:NSMakeSize(4, 2)];
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[r->matrix setAutorecalculatesCellSize:YES];
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[r->matrix setDrawsBackground:NO];
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[r->matrix setDrawsCellBackground:NO];
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[r->matrix setAutosizesCells:YES];
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return r;
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}
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