func FromLua(code string) map[string]unsafe.Pointer {
lua := lgo.NewLua()
bindings := make(map[string]unsafe.Pointer)
processActorArgs := func(actor *C.ClutterActor, args map[interface{}]interface{}) unsafe.Pointer {
pointer := unsafe.Pointer(actor)
var minFilter, magFilter *C.ClutterScalingFilter
var scaleX C.gdouble = 1.0
var scaleY C.gdouble = 1.0
var translationX, translationY, translationZ C.gfloat
for k, v := range args {
switch key := k.(type) {
case string:
switch key {
case "id":
bindings[v.(string)] = pointer
case "bgcolor", "background_color":
C.clutter_actor_set_background_color(actor, NewColorFromString(v.(string)))
case "clip_rect":
clip := (*C.ClutterRect)(v.(unsafe.Pointer))
C.clutter_actor_set_clip(actor,
C.gfloat(clip.origin.x),
C.gfloat(clip.origin.y),
C.gfloat(clip.size.width),
C.gfloat(clip.size.height))
case "content":
C.clutter_actor_set_content(actor, (*C.ClutterContent)(v.(unsafe.Pointer)))
case "content_gravity":
switch v.(string) {
case "top-left":
C.clutter_actor_set_content_gravity(actor, C.CLUTTER_CONTENT_GRAVITY_TOP_LEFT)
case "top":
C.clutter_actor_set_content_gravity(actor, C.CLUTTER_CONTENT_GRAVITY_TOP)
case "top-right":
C.clutter_actor_set_content_gravity(actor, C.CLUTTER_CONTENT_GRAVITY_TOP_RIGHT)
case "left":
C.clutter_actor_set_content_gravity(actor, C.CLUTTER_CONTENT_GRAVITY_LEFT)
case "center":
C.clutter_actor_set_content_gravity(actor, C.CLUTTER_CONTENT_GRAVITY_CENTER)
case "right":
C.clutter_actor_set_content_gravity(actor, C.CLUTTER_CONTENT_GRAVITY_RIGHT)
case "bottom-left":
C.clutter_actor_set_content_gravity(actor, C.CLUTTER_CONTENT_GRAVITY_BOTTOM_LEFT)
case "bottom":
C.clutter_actor_set_content_gravity(actor, C.CLUTTER_CONTENT_GRAVITY_BOTTOM)
case "bottom-right":
C.clutter_actor_set_content_gravity(actor, C.CLUTTER_CONTENT_GRAVITY_BOTTOM_RIGHT)
case "resize-fill":
C.clutter_actor_set_content_gravity(actor, C.CLUTTER_CONTENT_GRAVITY_RESIZE_FILL)
case "resize-aspect":
C.clutter_actor_set_content_gravity(actor, C.CLUTTER_CONTENT_GRAVITY_RESIZE_ASPECT)
default:
log.Fatalf("unknown content gravity: %s", v.(string))
}
case "content_repeat":
switch v.(string) {
case "none":
C.clutter_actor_set_content_repeat(actor, C.CLUTTER_REPEAT_NONE)
case "x", "x-axis":
C.clutter_actor_set_content_repeat(actor, C.CLUTTER_REPEAT_X_AXIS)
case "y", "y-axis":
C.clutter_actor_set_content_repeat(actor, C.CLUTTER_REPEAT_Y_AXIS)
case "both":
C.clutter_actor_set_content_repeat(actor, C.CLUTTER_REPEAT_BOTH)
default:
log.Fatalf("unknown content repeat: %s", v.(string))
}
case "x", "fixed_x":
C.clutter_actor_set_x(actor, C.gfloat(v.(float64)))
case "y", "fixed_y":
C.clutter_actor_set_y(actor, C.gfloat(v.(float64)))
case "height":
C.clutter_actor_set_height(actor, C.gfloat(v.(float64)))
case "layout", "layout_manager":
C.clutter_actor_set_layout_manager(actor, (*C.ClutterLayoutManager)(v.(unsafe.Pointer)))
case "mag_filter", "magnification_filter":
magFilter = (*C.ClutterScalingFilter)(v.(unsafe.Pointer))
C.clutter_actor_set_content_scaling_filters(actor, *minFilter, *magFilter)
case "margin_bottom":
C.clutter_actor_set_margin_bottom(actor, C.gfloat(v.(float64)))
case "margin_left":
C.clutter_actor_set_margin_left(actor, C.gfloat(v.(float64)))
case "margin_right":
C.clutter_actor_set_margin_right(actor, C.gfloat(v.(float64)))
case "margin_top":
C.clutter_actor_set_margin_top(actor, C.gfloat(v.(float64)))
//TODO min height
//TODO min width
case "min_filter", "minification_filter":
minFilter = (*C.ClutterScalingFilter)(v.(unsafe.Pointer))
C.clutter_actor_set_content_scaling_filters(actor, *minFilter, *magFilter)
case "name":
C.clutter_actor_set_name(actor, toGStr(v.(string)))
//TODO natural height
//TODO natural width
case "offscreen_redirect":
switch v.(string) {
case "auto", "automatic-for-opacity":
C.clutter_actor_set_offscreen_redirect(actor, C.CLUTTER_OFFSCREEN_REDIRECT_AUTOMATIC_FOR_OPACITY)
case "always":
C.clutter_actor_set_offscreen_redirect(actor, C.CLUTTER_OFFSCREEN_REDIRECT_ALWAYS)
default:
log.Fatalf("unknown offscreen redirect option: %s", v.(string))
}
case "opacity":
C.clutter_actor_set_opacity(actor, C.guint8(uint8(v.(float64))))
case "pivot_point":
point := (*C.ClutterPoint)(v.(unsafe.Pointer))
C.clutter_actor_set_pivot_point(actor, C.gfloat(point.x), C.gfloat(point.y))
case "pivot_point_z":
C.clutter_actor_set_pivot_point_z(actor, C.gfloat(v.(float64)))
case "position":
point := (*C.ClutterPoint)(v.(unsafe.Pointer))
C.clutter_actor_set_position(actor, C.gfloat(point.x), C.gfloat(point.y))
case "reactive":
b := C.FALSE
if v.(bool) {
b = C.TRUE
}
C.clutter_actor_set_reactive(actor, C.gboolean(b))
case "request_mode":
switch v.(string) {
case "height", "height_for_width":
C.clutter_actor_set_request_mode(actor, C.CLUTTER_REQUEST_HEIGHT_FOR_WIDTH)
case "width", "width_for_height":
C.clutter_actor_set_request_mode(actor, C.CLUTTER_REQUEST_WIDTH_FOR_HEIGHT)
default:
log.Fatalf("unknown request mode: %s", v.(string))
}
case "rotation_angle_x":
C.clutter_actor_set_rotation_angle(actor, C.CLUTTER_X_AXIS, C.gdouble(v.(float64)))
case "rotation_angle_y":
C.clutter_actor_set_rotation_angle(actor, C.CLUTTER_Y_AXIS, C.gdouble(v.(float64)))
case "rotation_angle_z":
C.clutter_actor_set_rotation_angle(actor, C.CLUTTER_Z_AXIS, C.gdouble(v.(float64)))
case "scale_x":
scaleX = C.gdouble(v.(float64))
C.clutter_actor_set_scale(actor, scaleX, scaleY)
case "scale_y":
scaleY = C.gdouble(v.(float64))
C.clutter_actor_set_scale(actor, scaleX, scaleY)
case "scale_z":
C.clutter_actor_set_scale_z(actor, C.gdouble(v.(float64)))
case "size":
size := (*C.ClutterSize)(v.(unsafe.Pointer))
C.clutter_actor_set_size(actor, C.gfloat(size.width), C.gfloat(size.height))
case "text_direction", "text_dir":
switch v.(string) {
case "default":
C.clutter_actor_set_text_direction(actor, C.CLUTTER_TEXT_DIRECTION_DEFAULT)
case "left", "left-to-right", "ltr":
C.clutter_actor_set_text_direction(actor, C.CLUTTER_TEXT_DIRECTION_LTR)
case "right", "right-to-left", "rtl":
C.clutter_actor_set_text_direction(actor, C.CLUTTER_TEXT_DIRECTION_RTL)
default:
log.Fatalf("unknown text direction: %s", v.(string))
}
//TODO transform
case "translation_x":
translationX = C.gfloat(v.(float64))
C.clutter_actor_set_translation(actor, translationX, translationY, translationZ)
case "translation_y":
translationY = C.gfloat(v.(float64))
C.clutter_actor_set_translation(actor, translationX, translationY, translationZ)
case "translation_z":
translationZ = C.gfloat(v.(float64))
C.clutter_actor_set_translation(actor, translationX, translationY, translationZ)
case "visible":
if v.(bool) {
C.clutter_actor_show(actor)
} else {
C.clutter_actor_hide(actor)
}
case "width":
C.clutter_actor_set_width(actor, C.gfloat(v.(float64)))
case "x_align":
switch v.(string) {
case "fill":
C.clutter_actor_set_x_align(actor, C.CLUTTER_ACTOR_ALIGN_FILL)
case "start":
C.clutter_actor_set_x_align(actor, C.CLUTTER_ACTOR_ALIGN_START)
case "center":
C.clutter_actor_set_x_align(actor, C.CLUTTER_ACTOR_ALIGN_CENTER)
case "end":
C.clutter_actor_set_x_align(actor, C.CLUTTER_ACTOR_ALIGN_END)
default:
log.Fatalf("unknown x align: %s", v.(string))
}
case "x_expand":
b := C.FALSE
if v.(bool) {
b = C.TRUE
}
C.clutter_actor_set_x_expand(actor, C.gboolean(b))
case "y_align":
switch v.(string) {
case "fill":
C.clutter_actor_set_y_align(actor, C.CLUTTER_ACTOR_ALIGN_FILL)
case "start":
C.clutter_actor_set_y_align(actor, C.CLUTTER_ACTOR_ALIGN_START)
case "center":
C.clutter_actor_set_y_align(actor, C.CLUTTER_ACTOR_ALIGN_CENTER)
case "end":
C.clutter_actor_set_y_align(actor, C.CLUTTER_ACTOR_ALIGN_END)
default:
log.Fatalf("unknown y align: %s", v.(string))
}
case "y_expand":
b := C.FALSE
if v.(bool) {
b = C.TRUE
}
C.clutter_actor_set_y_expand(actor, C.gboolean(b))
case "z", "z_position":
C.clutter_actor_set_z_position(actor, C.gfloat(v.(float64)))
}
case float64:
switch value := v.(type) {
case unsafe.Pointer:
//TODO add tests
if IsActor(value) { // actor child
C.clutter_actor_add_child(actor, (*C.ClutterActor)(value))
} else if IsAction(value) { // action
C.clutter_actor_add_action(actor, (*C.ClutterAction)(value))
} else if IsConstraint(value) { // constraint
C.clutter_actor_add_constraint(actor, (*C.ClutterConstraint)(value))
} else if IsEffect(value) { // effect
C.clutter_actor_add_effect(actor, (*C.ClutterEffect)(value))
} else {
log.Fatalf("unknown subelement type")
}
}
}
}
return pointer
}
processBoxArgs := func(box *C.ClutterLayoutManager, args map[string]interface{}) {
//TODO
}
lua.RegisterFunctions(map[string]interface{}{
// actors
"Actor": func(args map[interface{}]interface{}) unsafe.Pointer {
actor := C.clutter_actor_new()
return processActorArgs(actor, args)
},
"Stage": func(args map[interface{}]interface{}) unsafe.Pointer {
window := C.gtk_window_new(C.GTK_WINDOW_TOPLEVEL)
embed := C.gtk_clutter_embed_new()
C.gtk_container_add((*C.GtkContainer)(unsafe.Pointer(window)), embed)
actor := C.gtk_clutter_embed_get_stage((*C.GtkClutterEmbed)(unsafe.Pointer(embed)))
C.clutter_actor_show(actor)
C.gtk_widget_show_all((*C.GtkWidget)(unsafe.Pointer(window)))
pointer := processActorArgs(actor, args)
stage := (*C.ClutterStage)(unsafe.Pointer(actor))
for k, v := range args {
//TODO other properties
switch key := k.(type) {
case string:
switch key {
case "title":
C.clutter_stage_set_title(stage, toGStr(v.(string)))
}
}
}
return pointer
},
"Text": func(args map[interface{}]interface{}) unsafe.Pointer {
actor := C.clutter_text_new()
pointer := processActorArgs(actor, args)
text := (*C.ClutterText)(unsafe.Pointer(actor))
for k, v := range args {
//TODO other properties
switch key := k.(type) {
case string:
switch key {
case "text":
C.clutter_text_set_text(text, toGStr(v.(string)))
case "use_markup":
b := C.FALSE
if v.(bool) {
b = C.TRUE
}
C.clutter_text_set_use_markup(text, C.gboolean(b))
case "markup":
C.clutter_text_set_markup(text, toGStr(v.(string)))
case "color":
C.clutter_text_set_color(text, NewColorFromString(v.(string)))
}
case float64:
}
}
return pointer
},
// data structures
"Point": func(args []float64) unsafe.Pointer {
var point C.ClutterPoint
point.x = C.float(args[0])
point.y = C.float(args[1])
return unsafe.Pointer(&point)
},
"Size": func(args []float64) unsafe.Pointer {
var size C.ClutterSize
size.width = C.float(args[0])
size.height = C.float(args[1])
return unsafe.Pointer(&size)
},
"Rect": func(args []float64) unsafe.Pointer {
var rect C.ClutterRect
var point C.ClutterPoint
var size C.ClutterSize
point.x = C.float(args[0])
point.y = C.float(args[1])
size.width = C.float(args[2])
size.height = C.float(args[3])
rect.origin = point
rect.size = size
return unsafe.Pointer(&rect)
},
// contents
"Image": func(args []string) unsafe.Pointer {
//TODO set data
image := C.clutter_image_new()
return unsafe.Pointer(image)
},
// layouts
"Box": func(args map[string]interface{}) unsafe.Pointer {
box := C.clutter_box_layout_new()
processBoxArgs(box, args)
return unsafe.Pointer(box)
},
"HBox": func(args map[string]interface{}) unsafe.Pointer {
box := C.clutter_box_layout_new()
C.clutter_box_layout_set_orientation((*C.ClutterBoxLayout)(unsafe.Pointer(box)), C.CLUTTER_ORIENTATION_HORIZONTAL)
processBoxArgs(box, args)
return unsafe.Pointer(box)
},
"VBox": func(args map[string]interface{}) unsafe.Pointer {
box := C.clutter_box_layout_new()
C.clutter_box_layout_set_orientation((*C.ClutterBoxLayout)(unsafe.Pointer(box)), C.CLUTTER_ORIENTATION_VERTICAL)
processBoxArgs(box, args)
return unsafe.Pointer(box)
},
// effects
"Blur": func(args map[string]interface{}) unsafe.Pointer {
effect := C.clutter_blur_effect_new()
return unsafe.Pointer(effect)
},
// constraints
"Align": func(args map[string]interface{}) unsafe.Pointer {
constraint := C.clutter_align_constraint_new(nil, C.CLUTTER_ALIGN_X_AXIS, 0)
align := (*C.ClutterAlignConstraint)(unsafe.Pointer(constraint))
for key, v := range args {
switch key {
case "source":
C.clutter_align_constraint_set_source(align, (*C.ClutterActor)(bindings[v.(string)]))
case "axis":
switch v.(string) {
case "x", "X":
C.clutter_align_constraint_set_align_axis(align, C.CLUTTER_ALIGN_X_AXIS)
case "y", "Y":
C.clutter_align_constraint_set_align_axis(align, C.CLUTTER_ALIGN_Y_AXIS)
case "both", "BOTH", "Both":
C.clutter_align_constraint_set_align_axis(align, C.CLUTTER_ALIGN_BOTH)
}
case "factor":
C.clutter_align_constraint_set_factor(align, C.gfloat(v.(float64)))
}
}
return unsafe.Pointer(constraint)
},
})
lua.RunString(code)
return bindings
}
// =================================
//gsize gst_buffer_memset (GstBuffer *buffer, gsize offset, guint8 val, gsize size);
func (this *Buffer) MemSet(offset uint, val byte, size uint) int {
return (int)(C.gst_buffer_memset((*C.GstBuffer)(this.GstBuffer), C.gsize(offset), C.guint8(val), C.gsize(size)))
}
func GlibUInt8(i uint8) C.guint8 {
return C.guint8(i)
}