diff options
Diffstat (limited to 'prev/table_windows.go')
| -rw-r--r-- | prev/table_windows.go | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/prev/table_windows.go b/prev/table_windows.go deleted file mode 100644 index 159f1c2..0000000 --- a/prev/table_windows.go +++ /dev/null @@ -1,204 +0,0 @@ -// 28 july 2014 - -package ui - -// TODO -// - why are we not getting keyboard input (focus?) on a mouse click? -// - are we getting keyboard input (focus?) on tab? -// - random freezes on Windows 7 when resizing headers or clicking new rows; likely another package ui infrastructure issue though... -// - investigate japanese display in the table headers on wine (it has worked in the past in ANSI mode via Shift-JIS with what I assume is the same font, so huh?) - -import ( - "fmt" - "reflect" - "unsafe" - "sync" - "image" -) - -// #include "winapi_windows.h" -import "C" - -type table struct { - *tablebase - *controlSingleHWND - noautosize bool - colcount C.int - selected *event - chainresize func(x int, y int, width int, height int, d *sizing) - free map[C.uintptr_t]bool - freeLock sync.Mutex -} - -func finishNewTable(b *tablebase, ty reflect.Type) Table { - hwnd := C.newControl(C.xtableWindowClass, - C.WS_HSCROLL|C.WS_VSCROLL|C.WS_TABSTOP, - C.WS_EX_CLIENTEDGE) // WS_EX_CLIENTEDGE without WS_BORDER will show the canonical visual styles border (thanks to MindChild in irc.efnet.net/#winprog) - t := &table{ - controlSingleHWND: newControlSingleHWND(hwnd), - tablebase: b, - selected: newEvent(), - free: make(map[C.uintptr_t]bool), - } - t.fpreferredSize = t.xpreferredSize - t.chainresize = t.fresize - t.fresize = t.xresize - C.setTableSubclass(t.hwnd, unsafe.Pointer(t)) - // TODO listview didn't need this; someone mentioned (TODO) it uses the small caption font??? - C.controlSetControlFont(t.hwnd) - for i := 0; i < ty.NumField(); i++ { - coltype := C.WPARAM(C.tableColumnText) - switch { - case ty.Field(i).Type == reflect.TypeOf((*image.RGBA)(nil)): - coltype = C.tableColumnImage - case ty.Field(i).Type.Kind() == reflect.Bool: - coltype = C.tableColumnCheckbox - } - colname := ty.Field(i).Tag.Get("uicolumn") - if colname == "" { - colname = ty.Field(i).Name - } - ccolname := toUTF16(colname) - C.SendMessageW(t.hwnd, C.tableAddColumn, coltype, C.LPARAM(uintptr(unsafe.Pointer(ccolname)))) - // TODO free ccolname - } - t.colcount = C.int(ty.NumField()) - return t -} - -func (t *table) Unlock() { - t.unlock() - // there's a possibility that user actions can happen at this point, before the view is updated - // alas, this is something we have to deal with, because Unlock() can be called from any thread - go func() { - Do(func() { - t.RLock() - defer t.RUnlock() - C.gotableSetRowCount(t.hwnd, C.intptr_t(reflect.Indirect(reflect.ValueOf(t.data)).Len())) - }) - }() -} - -func (t *table) Selected() int { - t.RLock() - defer t.RUnlock() - return int(C.tableSelectedItem(t.hwnd)) -} - -func (t *table) Select(index int) { - t.RLock() - defer t.RUnlock() - C.tableSelectItem(t.hwnd, C.intptr_t(index)) -} - -func (t *table) OnSelected(f func()) { - t.selected.set(f) -} - -//export tableGetCell -func tableGetCell(data unsafe.Pointer, tnm *C.tableNM) C.LRESULT { - t := (*table)(data) - t.RLock() - defer t.RUnlock() - d := reflect.Indirect(reflect.ValueOf(t.data)) - datum := d.Index(int(tnm.row)).Field(int(tnm.column)) - switch { - case datum.Type() == reflect.TypeOf((*image.RGBA)(nil)): - i := datum.Interface().(*image.RGBA) - hbitmap := C.toBitmap(unsafe.Pointer(i), C.intptr_t(i.Rect.Dx()), C.intptr_t(i.Rect.Dy())) - bitmap := C.uintptr_t(uintptr(unsafe.Pointer(hbitmap))) - t.freeLock.Lock() - t.free[bitmap] = true // bitmap freed with C.freeBitmap() - t.freeLock.Unlock() - return C.LRESULT(bitmap) - case datum.Kind() == reflect.Bool: - if datum.Bool() == true { - return C.TRUE - } - return C.FALSE - default: - s := fmt.Sprintf("%v", datum) - text := C.uintptr_t(uintptr(unsafe.Pointer(toUTF16(s)))) - t.freeLock.Lock() - t.free[text] = false // text freed with C.free() - t.freeLock.Unlock() - return C.LRESULT(text) - } -} - -//export tableFreeCellData -func tableFreeCellData(gotable unsafe.Pointer, data C.uintptr_t) { - t := (*table)(gotable) - t.freeLock.Lock() - defer t.freeLock.Unlock() - b, ok := t.free[data] - if !ok { - panic(fmt.Errorf("undefined data %p in tableFreeData()", data)) - } - if b == false { - C.free(unsafe.Pointer(uintptr(data))) - } else { - C.freeBitmap(data) - } - delete(t.free, data) -} - -// the column autoresize policy is simple: -// on every table.commitResize() call, if the columns have not been resized by the user, autoresize -func (t *table) autoresize() { - t.RLock() - defer t.RUnlock() - if !t.noautosize { -//TODO C.tableAutosizeColumns(t.hwnd, t.colcount) - } -} - -//export tableStopColumnAutosize -func tableStopColumnAutosize(data unsafe.Pointer) { - t := (*table)(data) - t.noautosize = true -} - -//export tableColumnCount -func tableColumnCount(data unsafe.Pointer) C.int { - t := (*table)(data) - return t.colcount -} - -//export tableToggled -func tableToggled(data unsafe.Pointer, row C.intptr_t, col C.intptr_t) { - t := (*table)(data) - t.Lock() - defer t.Unlock() - d := reflect.Indirect(reflect.ValueOf(t.data)) - datum := d.Index(int(row)).Field(int(col)) - if datum.Kind() == reflect.Bool { - datum.SetBool(!datum.Bool()) - return - } - panic(fmt.Errorf("tableSetHot() on non-checkbox at (%d, %d)", row, col)) -} - -//export tableSelectionChanged -func tableSelectionChanged(data unsafe.Pointer) { - t := (*table)(data) - t.selected.fire() -} - -const ( - // from C++ Template 05 in http://msdn.microsoft.com/en-us/library/windows/desktop/bb226818%28v=vs.85%29.aspx as this is the best I can do for now - // there IS a message LVM_APPROXIMATEVIEWRECT that can do calculations, but it doesn't seem to work right when asked to base its calculations on the current width/height on Windows and wine... - tableWidth = 183 - tableHeight = 50 -) - -func (t *table) xpreferredSize(d *sizing) (width, height int) { - return fromdlgunitsX(tableWidth, d), fromdlgunitsY(tableHeight, d) -} - -func (t *table) xresize(x int, y int, width int, height int, d *sizing) { - t.chainresize(x, y, width, height, d) - t.RLock() - defer t.RUnlock() - t.autoresize() -} |
