1 files changed, 324 insertions, 0 deletions
diff --git a/sysdata_darwin.go b/sysdata_darwin.go
new file mode 100644
index 0000000..cd25748
--- /dev/null
+++ b/sysdata_darwin.go
@@ -0,0 +1,324 @@
+// 1 march 2014
+
+package ui
+
+import (
+	"fmt"
+	"sync"
+)
+
+// #include "objc_darwin.h"
+import "C"
+
+type sysData struct {
+	cSysData
+
+	id           C.id
+	trackingArea C.id // for Area
+}
+
+type classData struct {
+	make         func(parentWindow C.id, alternate bool, s *sysData) C.id
+	getinside    func(scrollview C.id) C.id
+	show         func(what C.id)
+	hide         func(what C.id)
+	settext      func(what C.id, text C.id)
+	text         func(what C.id, alternate bool) C.id
+	append       func(id C.id, what string, alternate bool)
+	insertBefore func(id C.id, what string, before int, alternate bool)
+	selIndex     func(id C.id) int
+	selIndices   func(id C.id) []int
+	selTexts     func(id C.id) []string
+	delete       func(id C.id, index int)
+	len          func(id C.id) int
+}
+
+func addControl(parentWindow C.id, control C.id) {
+	C.addControl(parentWindow, control)
+}
+
+func controlShow(what C.id) {
+	C.controlShow(what)
+}
+
+func controlHide(what C.id) {
+	C.controlHide(what)
+}
+
+// By default some controls do not use the correct font.
+// These functions set the appropriate control font.
+// Which one is used on each control was determined by comparing https://developer.apple.com/library/mac/documentation/UserExperience/Conceptual/AppleHIGuidelines/Characteristics/Characteristics.html#//apple_ref/doc/uid/TP40002721-SW10 to what Interface Builder says for each control.
+// (not applicable to ProgressBar, Area)
+
+// Button, Checkbox, Combobox, LineEdit, Label, Listbox
+func applyStandardControlFont(id C.id) {
+	C.applyStandardControlFont(id)
+}
+
+var classTypes = [nctypes]*classData{
+	c_window: &classData{
+		make: func(parentWindow C.id, alternate bool, s *sysData) C.id {
+			return C.makeWindow(appDelegate)
+		},
+		show: func(what C.id) {
+			C.windowShow(what)
+		},
+		hide: func(what C.id) {
+			C.windowHide(what)
+		},
+		settext: func(what C.id, text C.id) {
+			C.windowSetTitle(what, text)
+		},
+		text: func(what C.id, alternate bool) C.id {
+			return C.windowTitle(what)
+		},
+	},
+	c_button: &classData{
+		make: func(parentWindow C.id, alternate bool, s *sysData) C.id {
+			button := C.makeButton()
+			C.buttonSetTargetAction(button, appDelegate)
+			applyStandardControlFont(button)
+			addControl(parentWindow, button)
+			return button
+		},
+		show: controlShow,
+		hide: controlHide,
+		settext: func(what C.id, text C.id) {
+			C.buttonSetText(what, text)
+		},
+		text: func(what C.id, alternate bool) C.id {
+			return C.buttonText(what)
+		},
+	},
+	c_checkbox: &classData{
+		make: func(parentWindow C.id, alternate bool, s *sysData) C.id {
+			checkbox := C.makeCheckbox()
+			applyStandardControlFont(checkbox)
+			addControl(parentWindow, checkbox)
+			return checkbox
+		},
+		show: controlShow,
+		hide: controlHide,
+		settext: func(what C.id, text C.id) {
+			C.buttonSetText(what, text)
+		},
+		text: func(what C.id, alternate bool) C.id {
+			return C.buttonText(what)
+		},
+	},
+	c_combobox: &classData{
+		make: func(parentWindow C.id, alternate bool, s *sysData) C.id {
+			combobox := C.makeCombobox(toBOOL(alternate))
+			applyStandardControlFont(combobox)
+			addControl(parentWindow, combobox)
+			return combobox
+		},
+		show: controlShow,
+		hide: controlHide,
+		text: func(what C.id, alternate bool) C.id {
+			return C.comboboxText(what, toBOOL(alternate))
+		},
+		append: func(id C.id, what string, alternate bool) {
+			C.comboboxAppend(id, toBOOL(alternate), toNSString(what))
+		},
+		insertBefore: func(id C.id, what string, before int, alternate bool) {
+			C.comboboxInsertBefore(id, toBOOL(alternate),
+				toNSString(what), C.intptr_t(before))
+		},
+		selIndex: func(id C.id) int {
+			return int(C.comboboxSelectedIndex(id))
+		},
+		delete: func(id C.id, index int) {
+			C.comboboxDelete(id, C.intptr_t(index))
+		},
+		len: func(id C.id) int {
+			return int(C.comboboxLen(id))
+		},
+	},
+	c_lineedit: &classData{
+		make: func(parentWindow C.id, alternate bool, s *sysData) C.id {
+			lineedit := C.makeLineEdit(toBOOL(alternate))
+			applyStandardControlFont(lineedit)
+			addControl(parentWindow, lineedit)
+			return lineedit
+		},
+		show: controlShow,
+		hide: controlHide,
+		settext: func(what C.id, text C.id) {
+			C.lineeditSetText(what, text)
+		},
+		text: func(what C.id, alternate bool) C.id {
+			return C.lineeditText(what)
+		},
+	},
+	c_label: &classData{
+		make: func(parentWindow C.id, alternate bool, s *sysData) C.id {
+			label := C.makeLabel()
+			applyStandardControlFont(label)
+			addControl(parentWindow, label)
+			return label
+		},
+		show: controlShow,
+		hide: controlHide,
+		settext: func(what C.id, text C.id) {
+			C.lineeditSetText(what, text)
+		},
+		text: func(what C.id, alternate bool) C.id {
+			return C.lineeditText(what)
+		},
+	},
+	c_listbox: &classData{
+		make:         makeListbox,
+		show:         controlShow,
+		hide:         controlHide,
+		append:       listboxAppend,
+		insertBefore: listboxInsertBefore,
+		selIndices:   listboxSelectedIndices,
+		selTexts:     listboxSelectedTexts,
+		delete:       listboxDelete,
+		len:          listboxLen,
+	},
+	c_progressbar: &classData{
+		make: func(parentWindow C.id, alternate bool, s *sysData) C.id {
+			pbar := C.makeProgressBar()
+			addControl(parentWindow, pbar)
+			return pbar
+		},
+		show: controlShow,
+		hide: controlHide,
+	},
+	c_area: &classData{
+		make:      makeArea,
+		getinside: areaInScrollView,
+		show:      controlShow,
+		hide:      controlHide,
+	},
+}
+
+// I need to access sysData from appDelegate, but appDelegate doesn't store any data. So, this.
+var (
+	sysdatas    = make(map[C.id]*sysData)
+	sysdatalock sync.Mutex
+)
+
+func addSysData(key C.id, value *sysData) {
+	sysdatalock.Lock()
+	sysdatas[key] = value
+	sysdatalock.Unlock()
+}
+
+func getSysData(key C.id) *sysData {
+	sysdatalock.Lock()
+	defer sysdatalock.Unlock()
+
+	v, ok := sysdatas[key]
+	if !ok {
+		panic(fmt.Errorf("internal error: getSysData(%v) unknown", key))
+	}
+	return v
+}
+
+func (s *sysData) make(window *sysData) error {
+	var parentWindow C.id
+
+	ct := classTypes[s.ctype]
+	if window != nil {
+		parentWindow = window.id
+	}
+	s.id = ct.make(parentWindow, s.alternate, s)
+	if ct.getinside != nil {
+		addSysData(ct.getinside(s.id), s)
+	} else {
+		addSysData(s.id, s)
+	}
+	return nil
+}
+
+// used for Windows; nothing special needed elsewhere
+func (s *sysData) firstShow() error {
+	s.show()
+	return nil
+}
+
+func (s *sysData) show() {
+	classTypes[s.ctype].show(s.id)
+}
+
+func (s *sysData) hide() {
+	classTypes[s.ctype].hide(s.id)
+}
+
+func (s *sysData) setText(text string) {
+	classTypes[s.ctype].settext(s.id, toNSString(text))
+}
+
+func (s *sysData) setRect(x int, y int, width int, height int, winheight int) error {
+	// winheight - y because (0,0) is the bottom-left corner of the window and not the top-left corner
+	// (winheight - y) - height because (x, y) is the bottom-left corner of the control and not the top-left
+	C.setRect(s.id,
+		C.intptr_t(x), C.intptr_t((winheight-y)-height),
+		C.intptr_t(width), C.intptr_t(height))
+	return nil
+}
+
+func (s *sysData) isChecked() bool {
+	return C.isCheckboxChecked(s.id) != C.NO
+}
+
+func (s *sysData) text() string {
+	str := classTypes[s.ctype].text(s.id, s.alternate)
+	return fromNSString(str)
+}
+
+func (s *sysData) append(what string) {
+	classTypes[s.ctype].append(s.id, what, s.alternate)
+}
+
+func (s *sysData) insertBefore(what string, before int) {
+	classTypes[s.ctype].insertBefore(s.id, what, before, s.alternate)
+}
+
+func (s *sysData) selectedIndex() int {
+	return classTypes[s.ctype].selIndex(s.id)
+}
+
+func (s *sysData) selectedIndices() []int {
+	return classTypes[s.ctype].selIndices(s.id)
+}
+
+func (s *sysData) selectedTexts() []string {
+	return classTypes[s.ctype].selTexts(s.id)
+}
+
+func (s *sysData) setWindowSize(width int, height int) error {
+	C.windowSetContentSize(s.id, C.intptr_t(width), C.intptr_t(height))
+	return nil
+}
+
+func (s *sysData) delete(index int) {
+	classTypes[s.ctype].delete(s.id, index)
+}
+
+func (s *sysData) setProgress(percent int) {
+	C.setProgress(s.id, C.intptr_t(percent))
+}
+
+func (s *sysData) len() int {
+	return classTypes[s.ctype].len(s.id)
+}
+
+func (s *sysData) setAreaSize(width int, height int) {
+	C.setAreaSize(s.id, C.intptr_t(width), C.intptr_t(height))
+}
+
+func (s *sysData) repaintAll() {
+	C.display(s.id)
+}
+
+func (s *sysData) center() {
+	C.center(s.id)
+}
+
+func (s *sysData) setChecked(checked bool) {
+	C.setCheckboxChecked(s.id, toBOOL(checked))
+}