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add support of row's color and backgroundcolor #168

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add support of row's color and backgroundcolor #168

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56 changes: 50 additions & 6 deletions tableview.go
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Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,12 @@ const (
tableViewSelectedIndexesChangedTimerId
)

// TableRow defines the color and font of each row
type TableRow struct {
TextColor Color
BackgroundColor Color
}

// TableView is a model based widget for record centric, tabular data.
//
// TableView is implemented as a virtual mode list view to support quite large
Expand Down Expand Up @@ -68,6 +74,7 @@ type TableView struct {
delayedCurrentIndexChangedCanceled bool
sortedColumnIndex int
sortOrder SortOrder
rows map[int]*TableRow
}

// NewTableView creates and returns a *TableView as child of the specified
Expand All @@ -85,6 +92,7 @@ func NewTableViewWithStyle(parent Container, style uint32) (*TableView, error) {
filePath2IconIndex: make(map[string]int32),
selectedIndexes: NewIndexList(nil),
}
tv.rows = make(map[int]*TableRow)

tv.columns = newTableViewColumnList(tv)

Expand Down Expand Up @@ -146,6 +154,28 @@ func NewTableViewWithStyle(parent Container, style uint32) (*TableView, error) {
return tv, nil
}

// SetRowTextColor set the row's text color
func (tv *TableView) SetRowTextColor(index int, c Color) {
r, ok := tv.rows[index]
if !ok {
tv.rows[index] = &TableRow{TextColor: c, BackgroundColor: RGB(255, 255, 255)}
return
}
r.TextColor = c
return
}

// SetRowBackgroundColor set the row's background color
func (tv *TableView) SetRowBackgroundColor(index int, c Color) {
r, ok := tv.rows[index]
if !ok {
tv.rows[index] = &TableRow{TextColor: RGB(0, 0, 0), BackgroundColor: c}
return
}
r.BackgroundColor = c
return
}

// Dispose releases the operating system resources, associated with the
// *TableView.
func (tv *TableView) Dispose() {
Expand Down Expand Up @@ -1265,8 +1295,9 @@ func (tv *TableView) WndProc(hwnd win.HWND, msg uint32, wParam, lParam uintptr)
}

case win.NM_CUSTOMDRAW:
nmlvcd := (*win.NMLVCUSTOMDRAW)(unsafe.Pointer(lParam))
v, ok := tv.rows[int(nmlvcd.Nmcd.DwItemSpec)]
if tv.alternatingRowBGColor != defaultTVRowBGColor {
nmlvcd := (*win.NMLVCUSTOMDRAW)(unsafe.Pointer(lParam))

switch nmlvcd.Nmcd.DwDrawStage {
case win.CDDS_PREPAINT:
Expand All @@ -1283,8 +1314,9 @@ func (tv *TableView) WndProc(hwnd win.HWND, msg uint32, wParam, lParam uintptr)
}*/
nmlvcd.ClrTextBk = win.COLORREF(tv.alternatingRowBGColor)
}

return win.CDRF_NOTIFYSUBITEMDRAW
if !ok {
return win.CDRF_NOTIFYSUBITEMDRAW
}

case win.CDDS_ITEMPREPAINT | win.CDDS_SUBITEM:
if nmlvcd.Nmcd.DwItemSpec%2 == 1 &&
Expand All @@ -1295,13 +1327,25 @@ func (tv *TableView) WndProc(hwnd win.HWND, msg uint32, wParam, lParam uintptr)

nmlvcd.ClrText = white
}

if !ok {
return win.CDRF_NEWFONT
}
}
}
if ok {
switch nmlvcd.Nmcd.DwDrawStage {
case win.CDDS_PREPAINT:
return win.CDRF_NOTIFYITEMDRAW
case win.CDDS_ITEMPREPAINT:
nmlvcd.ClrTextBk = win.COLORREF(v.BackgroundColor)
return win.CDRF_NOTIFYSUBITEMDRAW
case win.CDDS_ITEMPREPAINT | win.CDDS_SUBITEM:
nmlvcd.ClrText = win.COLORREF(v.TextColor)
return win.CDRF_NEWFONT
}
return win.CDRF_DODEFAULT
}

return win.CDRF_DODEFAULT

case win.LVN_COLUMNCLICK:
nmlv := (*win.NMLISTVIEW)(unsafe.Pointer(lParam))

Expand Down