Slider: Add support for changing line and page size

2 files changed, 20 insertions, 0 deletions

diff --git a/declarative/slider.go b/declarative/slider.go
index 719c31f6..4f7fc0de 100644
--- a/declarative/slider.go
+++ b/declarative/slider.go
@@ -46,10 +46,12 @@ type Slider struct {
 	// Slider
 
 	AssignTo       **walk.Slider
+	LineSize       int
 	MaxValue       int
 	MinValue       int
 	Orientation    Orientation
 	OnValueChanged walk.EventHandler
+	PageSize       int
 	ToolTipsHidden bool
 	Tracking       bool
 	Value          Property
@@ -70,6 +72,8 @@ func (sl Slider) Create(builder *Builder) error {
 
 	return builder.InitWidget(sl, w, func() error {
 		w.SetPersistent(sl.Persistent)
+		w.SetLineSize(sl.LineSize)
+		w.SetPageSize(sl.PageSize)
 		w.SetTracking(sl.Tracking)
 
 		if sl.MaxValue > sl.MinValue {
diff --git a/slider.go b/slider.go
index 4687e1ad..b9e8ee50 100644
--- a/slider.go
+++ b/slider.go
@@ -141,6 +141,22 @@ func (sl *Slider) RestoreState() error {
 	return nil
 }
 
+func (sl *Slider) LineSize() int {
+	return int(sl.SendMessage(win.TBM_GETLINESIZE, 0, 0))
+}
+
+func (sl *Slider) SetLineSize(lineSize int) {
+	sl.SendMessage(win.TBM_SETLINESIZE, 0, uintptr(lineSize))
+}
+
+func (sl *Slider) PageSize() int {
+	return int(sl.SendMessage(win.TBM_GETPAGESIZE, 0, 0))
+}
+
+func (sl *Slider) SetPageSize(pageSize int) {
+	sl.SendMessage(win.TBM_SETPAGESIZE, 0, uintptr(pageSize))
+}
+
 func (sl *Slider) Tracking() bool {
 	return sl.tracking
 }