1212 lines
32 KiB
Text
1212 lines
32 KiB
Text
# Internal helper
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var _getColor = func(color)
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{
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if( size(color) == 1 )
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var color = color[0];
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if( typeof(color) == 'scalar' )
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return color;
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if( typeof(color) != "vector" )
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return debug.warn("Wrong type for color");
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if( size(color) < 3 or size(color) > 4 )
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return debug.warn("Color needs 3 or 4 values (RGB or RGBA)");
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var str = 'rgb';
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if( size(color) == 4 )
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str ~= 'a';
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str ~= '(';
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# rgb = [0,255], a = [0,1]
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for(var i = 0; i < size(color); i += 1)
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str ~= (i > 0 ? ',' : '') ~ (i < 3 ? int(color[i] * 255) : color[i]);
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return str ~ ')';
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};
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var _arg2valarray = func
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{
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var ret = arg;
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while ( typeof(ret) == "vector"
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and size(ret) == 1 and typeof(ret[0]) == "vector" )
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ret = ret[0];
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return ret;
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}
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# Transform
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# ==============================================================================
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# A transformation matrix which is used to transform an #Element on the canvas.
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# The dimensions of the matrix are 3x3 where the last row is always 0 0 1:
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#
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# a c e
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# b d f
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# 0 0 1
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#
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# See http://www.w3.org/TR/SVG/coords.html#TransformMatrixDefined for details.
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#
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var Transform = {
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new: func(node, vals = nil)
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{
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var m = {
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parents: [Transform],
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_node: node,
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a: node.getNode("m[0]", 1),
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b: node.getNode("m[1]", 1),
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c: node.getNode("m[2]", 1),
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d: node.getNode("m[3]", 1),
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e: node.getNode("m[4]", 1),
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f: node.getNode("m[5]", 1)
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};
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var use_vals = typeof(vals) == 'vector' and size(vals) == 6;
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# initialize to identity matrix
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m.a.setDoubleValue(use_vals ? vals[0] : 1);
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m.b.setDoubleValue(use_vals ? vals[1] : 0);
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m.c.setDoubleValue(use_vals ? vals[2] : 0);
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m.d.setDoubleValue(use_vals ? vals[3] : 1);
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m.e.setDoubleValue(use_vals ? vals[4] : 0);
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m.f.setDoubleValue(use_vals ? vals[5] : 0);
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return m;
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},
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setTranslation: func
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{
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var trans = _arg2valarray(arg);
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me.e.setDoubleValue(trans[0]);
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me.f.setDoubleValue(trans[1]);
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return me;
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},
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# Set rotation (Optionally around a specified point instead of (0,0))
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#
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# setRotation(rot)
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# setRotation(rot, cx, cy)
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#
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# @note If using with rotation center different to (0,0) don't use
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# #setTranslation as it would interfere with the rotation.
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setRotation: func(angle)
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{
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var center = _arg2valarray(arg);
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var s = math.sin(angle);
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var c = math.cos(angle);
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me.a.setDoubleValue(c);
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me.b.setDoubleValue(s);
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me.c.setDoubleValue(-s);
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me.d.setDoubleValue(c);
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if( size(center) == 2 )
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{
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me.e.setDoubleValue( (-center[0] * c) + (center[1] * s) + center[0] );
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me.f.setDoubleValue( (-center[0] * s) - (center[1] * c) + center[1] );
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}
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return me;
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},
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# Set scale (either as parameters or array)
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#
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# If only one parameter is given its value is used for both x and y
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# setScale(x, y)
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# setScale([x, y])
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setScale: func
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{
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var scale = _arg2valarray(arg);
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me.a.setDoubleValue(scale[0]);
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me.d.setDoubleValue(size(scale) >= 2 ? scale[1] : scale[0]);
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return me;
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},
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getScale: func()
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{
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# TODO handle rotation
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return [me.a.getValue(), me.d.getValue()];
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}
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};
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# Element
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# ==============================================================================
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# Baseclass for all elements on a canvas
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#
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var Element = {
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# Reference frames (for "clip" coordinates)
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GLOBAL: 0,
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PARENT: 1,
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LOCAL: 2,
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# Constructor
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#
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# @param ghost Element ghost as retrieved from core methods
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new: func(ghost)
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{
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return {
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parents: [PropertyElement, Element, ghost],
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_node: props.wrapNode(ghost._node_ghost)
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};
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},
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# Get parent group/element
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getParent: func()
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{
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var parent_ghost = me._getParent();
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if( parent_ghost == nil )
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return nil;
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var type = props.wrapNode(parent_ghost._node_ghost).getName();
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var factory = me._getFactory(type);
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if( factory == nil )
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return parent_ghost;
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return factory(parent_ghost);
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},
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# Get the canvas this element is placed on
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getCanvas: func()
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{
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wrapCanvas(me._getCanvas());
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},
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# Check if elements represent same instance
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#
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# @param el Other Element or element ghost
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equals: func(el)
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{
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return me._node.equals(el._node_ghost);
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},
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# Hide/Show element
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#
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# @param visible Whether the element should be visible
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setVisible: func(visible = 1)
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{
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me.setBool("visible", visible);
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},
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getVisible: func me.getBool("visible"),
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# Hide element (Shortcut for setVisible(0))
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hide: func me.setVisible(0),
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# Show element (Shortcut for setVisible(1))
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show: func me.setVisible(1),
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# Toggle element visibility
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toggleVisibility: func me.setVisible( !me.getVisible() ),
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#
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setGeoPosition: func(lat, lon)
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{
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me._getTf()._node.getNode("m-geo[4]", 1).setValue("N" ~ lat);
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me._getTf()._node.getNode("m-geo[5]", 1).setValue("E" ~ lon);
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return me;
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},
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# Create a new transformation matrix
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#
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# @param vals Default values (Vector of 6 elements)
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createTransform: func(vals = nil)
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{
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var node = me._node.addChild("tf", 1); # tf[0] is reserved for
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# setRotation
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return Transform.new(node, vals);
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},
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# Shortcut for setting translation
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setTranslation: func { me._getTf().setTranslation(arg); return me; },
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# Get translation set with #setTranslation
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getTranslation: func()
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{
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if( me['_tf'] == nil )
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return [0, 0];
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return [me._tf.e.getValue(), me._tf.f.getValue()];
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},
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# Set rotation around transformation center (see #setCenter).
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#
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# @note This replaces the the existing transformation. For additional scale or
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# translation use additional transforms (see #createTransform).
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setRotation: func(rot)
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{
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if( me['_tf_rot'] == nil )
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# always use the first matrix slot to ensure correct rotation
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# around transformation center.
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# tf-rot-index can be set to change the slot to be used. This is used for
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# example by the SVG parser to apply the rotation after all
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# transformations defined in the SVG file.
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me['_tf_rot'] = Transform.new(
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me._node.getNode("tf[" ~ me.get("tf-rot-index", 0) ~ "]", 1)
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);
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me._tf_rot.setRotation(rot, me.getCenter());
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return me;
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},
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# Shortcut for setting scale
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setScale: func { me._getTf().setScale(arg); return me; },
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# Shortcut for getting scale
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getScale: func me._getTf().getScale(),
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# Set the fill/background/boundingbox color
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#
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# @param color Vector of 3 or 4 values in [0, 1]
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setColorFill: func me.set('fill', _getColor(arg)),
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getColorFill: func me.get('fill'),
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#
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getTransformedBounds: func me.getTightBoundingBox(),
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# Calculate the transformation center based on bounding box and center-offset
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updateCenter: func
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{
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me.update();
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var bb = me.getTightBoundingBox();
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if( bb[0] > bb[2] or bb[1] > bb[3] )
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return;
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me._setupCenterNodes
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(
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(bb[0] + bb[2]) / 2 + (me.get("center-offset-x") or 0),
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(bb[1] + bb[3]) / 2 + (me.get("center-offset-y") or 0)
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);
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return me;
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},
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# Set transformation center (currently only used for rotation)
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setCenter: func()
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{
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var center = _arg2valarray(arg);
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if( size(center) != 2 )
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return debug.warn("invalid arg");
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me._setupCenterNodes(center[0], center[1]);
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return me;
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},
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# Get transformation center
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getCenter: func()
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{
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var center = [0, 0];
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me._setupCenterNodes();
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if( me._center[0] != nil )
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center[0] = me._center[0].getValue() or 0;
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if( me._center[1] != nil )
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center[1] = me._center[1].getValue() or 0;
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return center;
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},
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# Internal Transform for convenience transform functions
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_getTf: func
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{
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if( me['_tf'] == nil )
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me['_tf'] = me.createTransform();
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return me._tf;
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},
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_setupCenterNodes: func(cx = nil, cy = nil)
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{
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if( me["_center"] == nil )
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me["_center"] = [
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me._node.getNode("center[0]", cx != nil),
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me._node.getNode("center[1]", cy != nil)
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];
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if( cx != nil )
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me._center[0].setDoubleValue(cx);
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if( cy != nil )
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me._center[1].setDoubleValue(cy);
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}
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};
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# Group
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# ==============================================================================
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# Class for a group element on a canvas
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#
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var Group = {
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# public:
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new: func(ghost)
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{
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return { parents: [Group, Element.new(ghost)] };
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},
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# Create a child of given type with specified id.
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# type can be group, text
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createChild: func(type, id = nil)
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{
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var ghost = me._createChild(type, id);
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var factory = me._getFactory(type);
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if( factory == nil )
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return ghost;
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return factory(ghost);
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},
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# Create multiple children of given type
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createChildren: func(type, count)
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{
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var factory = me._getFactory(type);
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if( factory == nil )
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return [];
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var nodes = props._addChildren(me._node._g, [type, count, 0, 0]);
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for(var i = 0; i < count; i += 1)
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nodes[i] = factory( me._getChild(nodes[i]) );
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return nodes;
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},
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# Create a path child drawing a (rounded) rectangle
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#
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# @param x Position of left border
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# @param y Position of top border
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# @param w Width
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# @param h Height
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# @param cfg Optional settings (eg. {"border-top-radius": 5})
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rect: func(x, y, w, h, cfg = nil)
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{
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return me.createChild("path").rect(x, y, w, h, cfg);
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},
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# Get a vector of all child elements
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getChildren: func()
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{
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var children = [];
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foreach(var c; me._node.getChildren())
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if( me._isElementNode(c) )
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append(children, me._wrapElement(c));
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return children;
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},
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# Recursively get all children of class specified by first param
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getChildrenOfType: func(type, array = nil){
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var children = array;
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if(children == nil)
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children = [];
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var my_children = me.getChildren();
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if(typeof(type) != 'vector')
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type = [type];
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foreach(var c; my_children){
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foreach(var t; type){
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if(isa(c, t)){
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append(children, c);
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}
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}
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if(isa(c, canvas.Group)){
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c.getChildrenOfType(type, children);
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}
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}
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return children;
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},
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# Set color to children of type Path and Text. It is possible to optionally
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# specify which types of children should be affected by passing a vector as
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# the last agrument, ie. my_group.setColor(1,1,1,[Path]);
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setColor: func(){
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var color = arg;
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var types = [Path, Text];
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var arg_c = size(color);
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if(arg_c > 1 and typeof(color[-1]) == 'vector'){
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types = color[-1];
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color = subvec(color, 0, arg_c - 1);
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}
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var children = me.getChildrenOfType(types);
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if(typeof(color) == 'vector'){
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var first = color[0];
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if(typeof(first) == 'vector')
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color = first;
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}
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foreach(var c; children)
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c.setColor(color);
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},
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# Get first child with given id (breadth-first search)
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#
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# @note Use with care as it can take several miliseconds (for me eg. ~2ms).
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# TODO check with new C++ implementation
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getElementById: func(id)
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{
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var ghost = me._getElementById(id);
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if( ghost == nil )
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return nil;
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var node = props.wrapNode(ghost._node_ghost);
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var factory = me._getFactory( node.getName() );
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if( factory == nil )
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return ghost;
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return factory(ghost);
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},
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# Remove all children
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removeAllChildren: func()
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{
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foreach(var type; keys(me._element_factories))
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me._node.removeChildren(type, 0);
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return me;
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},
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# private:
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_isElementNode: func(el)
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{
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# element nodes have type NONE and valid element names (those in the factory
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# list)
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return el.getType() == "NONE"
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and me._element_factories[ el.getName() ] != nil;
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},
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_wrapElement: func(node)
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{
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# Create element from existing node
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return me._element_factories[ node.getName() ]( me._getChild(node._g) );
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},
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_getFactory: func(type)
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{
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var factory = me._element_factories[type];
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if( factory == nil )
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debug.dump("canvas.Group.createChild(): unknown type (" ~ type ~ ")");
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return factory;
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}
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};
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|
# Map
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# ==============================================================================
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# Class for a group element on a canvas with possibly geopgraphic positions
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# which automatically get projected according to the specified projection.
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# Each map consists of an arbitrary number of layers (canvas groups)
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#
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var Map = {
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df_controller: nil,
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new: func(ghost)
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{
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return { parents: [Map, Group.new(ghost)], layers:{}, controller:nil }.setController();
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},
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del: func()
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|
{
|
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#print("canvas.Map.del()");
|
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if (me.controller != nil)
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me.controller.del(me);
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foreach (var k; keys(me.layers)) {
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me.layers[k].del();
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delete(me.layers, k);
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}
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# call inherited 'del'
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me.parents = subvec(me.parents,1);
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me.del();
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},
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setController: func(controller=nil, arg...)
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|
{
|
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if (me.controller != nil) me.controller.del(me);
|
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if (controller == nil)
|
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controller = Map.df_controller;
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elsif (typeof(controller) != 'hash')
|
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controller = Map.Controller.get(controller);
|
|
|
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if (controller == nil) {
|
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me.controller = nil;
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} else {
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if (!isa(controller, Map.Controller))
|
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die("OOP error: controller needs to inherit from Map.Controller");
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me.controller = call(controller.new, [me]~arg, controller, var err=[]); # try...
|
|
if (size(err)) {
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if (err[0] != "No such member: new") # ... and either catch or rethrow
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die(err[0]);
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else
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me.controller = controller;
|
|
} elsif (me.controller == nil) {
|
|
me.controller = controller;
|
|
} elsif (me.controller != controller and !isa(me.controller, controller))
|
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die("OOP error: created instance needs to inherit from or be the specific controller class");
|
|
}
|
|
|
|
return me;
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|
},
|
|
addLayer: func(factory, type_arg=nil, priority=nil, style=nil, opts=nil, visible=1)
|
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{
|
|
if(contains(me.layers, type_arg))
|
|
printlog("warn", "addLayer() warning: overwriting existing layer:", type_arg);
|
|
|
|
var options = opts;
|
|
# Argument handling
|
|
if (type_arg != nil) {
|
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var layer = factory.new(type:type_arg, group:me, map:me, style:style, options:options, visible:visible);
|
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var type = factory.get(type_arg);
|
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var key = type_arg;
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} else {
|
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var layer = factory.new(group:me, map:me, style:style, options:options, visible:visible);
|
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var type = factory;
|
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var key = factory.type;
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}
|
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me.layers[type_arg] = layer;
|
|
|
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if (priority == nil)
|
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priority = type.df_priority;
|
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if (priority != nil)
|
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layer.group.setInt("z-index", priority);
|
|
|
|
return layer; # return new layer to caller() so that we can directly work with it, i.e. to register event handlers (panning/zooming)
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},
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|
getLayer: func(type_arg) me.layers[type_arg],
|
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|
|
setRange: func(range) me.set("range",range),
|
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getRange: func me.get('range'),
|
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|
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setPos: func(lat, lon, hdg=nil, range=nil, alt=nil)
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{
|
|
# TODO: also propage setPos events to layers and symbols (e.g. for offset maps)
|
|
me.set("ref-lat", lat);
|
|
me.set("ref-lon", lon);
|
|
if (hdg != nil)
|
|
me.set("hdg", hdg);
|
|
if (range != nil)
|
|
me.setRange(range);
|
|
if (alt != nil)
|
|
me.set("altitude", alt);
|
|
},
|
|
getPos: func
|
|
{
|
|
return [me.get("ref-lat"),
|
|
me.get("ref-lon"),
|
|
me.get("hdg"),
|
|
me.get("range"),
|
|
me.get("altitude")];
|
|
},
|
|
getLat: func me.get("ref-lat"),
|
|
getLon: func me.get("ref-lon"),
|
|
getHdg: func me.get("hdg"),
|
|
getAlt: func me.get("altitude"),
|
|
getRange: func me.get("range"),
|
|
getLatLon: func [me.get("ref-lat"), me.get("ref-lon")],
|
|
# N.B.: This always returns the same geo.Coord object,
|
|
# so its values can and will change at any time (call
|
|
# update() on the coord to ensure it is up-to-date,
|
|
# which basically calls this method again).
|
|
getPosCoord: func
|
|
{
|
|
var (lat, lon) = (me.get("ref-lat"),
|
|
me.get("ref-lon"));
|
|
var alt = me.get("altitude");
|
|
if (lat == nil or lon == nil) {
|
|
if (contains(me, "coord")) {
|
|
debug.warn("canvas.Map: lost ref-lat and/or ref-lon source");
|
|
}
|
|
return nil;
|
|
}
|
|
if (!contains(me, "coord")) {
|
|
me.coord = geo.Coord.new();
|
|
var m = me;
|
|
me.coord.update = func m.getPosCoord();
|
|
}
|
|
me.coord.set_latlon(lat,lon,alt or 0);
|
|
return me.coord;
|
|
},
|
|
# Update each layer on this Map. Called by
|
|
# me.controller.
|
|
update: func(predicate=nil)
|
|
{
|
|
var t = systime();
|
|
foreach (var l; keys(me.layers)) {
|
|
var layer = me.layers[l];
|
|
# Only update if the predicate allows
|
|
if (predicate == nil or predicate(layer))
|
|
layer.update();
|
|
}
|
|
printlog(_MP_dbg_lvl, "Took "~((systime()-t)*1000)~"ms to update map()");
|
|
me.setBool("update", 1); # update any coordinates that changed, to avoid floating labels etc.
|
|
return me;
|
|
},
|
|
};
|
|
|
|
# Text
|
|
# ==============================================================================
|
|
# Class for a text element on a canvas
|
|
#
|
|
var Text = {
|
|
new: func(ghost)
|
|
{
|
|
return { parents: [Text, Element.new(ghost)] };
|
|
},
|
|
# Set the text
|
|
setText: func(text)
|
|
{
|
|
me.set("text", typeof(text) == 'scalar' ? text : "");
|
|
},
|
|
appendText: func(text)
|
|
{
|
|
me.set("text", (me.get("text") or "") ~ (typeof(text) == 'scalar' ? text : ""));
|
|
},
|
|
# Set alignment
|
|
#
|
|
# @param align String, one of:
|
|
# left-top
|
|
# left-center
|
|
# left-bottom
|
|
# center-top
|
|
# center-center
|
|
# center-bottom
|
|
# right-top
|
|
# right-center
|
|
# right-bottom
|
|
# left-baseline
|
|
# center-baseline
|
|
# right-baseline
|
|
# left-bottom-baseline
|
|
# center-bottom-baseline
|
|
# right-bottom-baseline
|
|
#
|
|
setAlignment: func(align)
|
|
{
|
|
me.set("alignment", align);
|
|
},
|
|
# Set the font size
|
|
setFontSize: func(size, aspect = 1)
|
|
{
|
|
me.setDouble("character-size", size);
|
|
me.setDouble("character-aspect-ratio", aspect);
|
|
},
|
|
# Set font (by name of font file)
|
|
setFont: func(name)
|
|
{
|
|
me.set("font", name);
|
|
},
|
|
# Enumeration of values for drawing mode:
|
|
TEXT: 0x01, # The text itself
|
|
BOUNDINGBOX: 0x02, # A bounding box (only lines)
|
|
FILLEDBOUNDINGBOX: 0x04, # A filled bounding box
|
|
ALIGNMENT: 0x08, # Draw a marker (cross) at the position of the text
|
|
# Set draw mode. Binary combination of the values above. Since I haven't found
|
|
# a bitwise or we have to use a + instead.
|
|
#
|
|
# eg. my_text.setDrawMode(Text.TEXT + Text.BOUNDINGBOX);
|
|
setDrawMode: func(mode)
|
|
{
|
|
me.setInt("draw-mode", mode);
|
|
},
|
|
# Set bounding box padding
|
|
setPadding: func(pad)
|
|
{
|
|
me.setDouble("padding", pad);
|
|
},
|
|
setMaxWidth: func(w)
|
|
{
|
|
me.setDouble("max-width", w);
|
|
},
|
|
setColor: func me.set('fill', _getColor(arg)),
|
|
getColor: func me.get('fill'),
|
|
|
|
setColorFill: func me.set('background', _getColor(arg)),
|
|
getColorFill: func me.get('background'),
|
|
};
|
|
|
|
# Path
|
|
# ==============================================================================
|
|
# Class for an (OpenVG) path element on a canvas
|
|
#
|
|
var Path = {
|
|
# Path segment commands (VGPathCommand)
|
|
VG_CLOSE_PATH: 0,
|
|
VG_MOVE_TO: 2,
|
|
VG_MOVE_TO_ABS: 2,
|
|
VG_MOVE_TO_REL: 3,
|
|
VG_LINE_TO: 4,
|
|
VG_LINE_TO_ABS: 4,
|
|
VG_LINE_TO_REL: 5,
|
|
VG_HLINE_TO: 6,
|
|
VG_HLINE_TO_ABS: 6,
|
|
VG_HLINE_TO_REL: 7,
|
|
VG_VLINE_TO: 8,
|
|
VG_VLINE_TO_ABS: 8,
|
|
VG_VLINE_TO_REL: 9,
|
|
VG_QUAD_TO: 10,
|
|
VG_QUAD_TO_ABS: 10,
|
|
VG_QUAD_TO_REL: 11,
|
|
VG_CUBIC_TO: 12,
|
|
VG_CUBIC_TO_ABS: 12,
|
|
VG_CUBIC_TO_REL: 13,
|
|
VG_SQUAD_TO: 14,
|
|
VG_SQUAD_TO_ABS: 14,
|
|
VG_SQUAD_TO_REL: 15,
|
|
VG_SCUBIC_TO: 16,
|
|
VG_SCUBIC_TO_ABS: 16,
|
|
VG_SCUBIC_TO_REL: 17,
|
|
VG_SCCWARC_TO: 20, # Note that CC and CCW commands are swapped. This is
|
|
VG_SCCWARC_TO_ABS:20, # needed due to the different coordinate systems used.
|
|
VG_SCCWARC_TO_REL:21, # In OpenVG values along the y-axis increase from bottom
|
|
VG_SCWARC_TO: 18, # to top, whereas in the Canvas system it is flipped.
|
|
VG_SCWARC_TO_ABS: 18,
|
|
VG_SCWARC_TO_REL: 19,
|
|
VG_LCCWARC_TO: 24,
|
|
VG_LCCWARC_TO_ABS:24,
|
|
VG_LCCWARC_TO_REL:25,
|
|
VG_LCWARC_TO: 22,
|
|
VG_LCWARC_TO_ABS: 22,
|
|
VG_LCWARC_TO_REL: 23,
|
|
|
|
# Number of coordinates per command
|
|
num_coords: [
|
|
0, 0, # VG_CLOSE_PATH
|
|
2, 2, # VG_MOVE_TO
|
|
2, 2, # VG_LINE_TO
|
|
1, 1, # VG_HLINE_TO
|
|
1, 1, # VG_VLINE_TO
|
|
4, 4, # VG_QUAD_TO
|
|
6, 6, # VG_CUBIC_TO
|
|
2, 2, # VG_SQUAD_TO
|
|
4, 4, # VG_SCUBIC_TO
|
|
5, 5, # VG_SCCWARC_TO
|
|
5, 5, # VG_SCWARC_TO
|
|
5, 5, # VG_LCCWARC_TO
|
|
5, 5 # VG_LCWARC_TO
|
|
],
|
|
|
|
#
|
|
new: func(ghost)
|
|
{
|
|
return {
|
|
parents: [Path, Element.new(ghost)],
|
|
_first_cmd: 0,
|
|
_first_coord: 0,
|
|
_last_cmd: -1,
|
|
_last_coord: -1
|
|
};
|
|
},
|
|
# Remove all existing path data
|
|
reset: func
|
|
{
|
|
me._node.removeChildren('cmd', 0);
|
|
me._node.removeChildren('coord', 0);
|
|
me._node.removeChildren('coord-geo', 0);
|
|
me._first_cmd = 0;
|
|
me._first_coord = 0;
|
|
me._last_cmd = -1;
|
|
me._last_coord = -1;
|
|
return me;
|
|
},
|
|
# Set the path data (commands and coordinates)
|
|
setData: func(cmds, coords)
|
|
{
|
|
me.reset();
|
|
me._node.setValues({cmd: cmds, coord: coords});
|
|
me._last_cmd = size(cmds) - 1;
|
|
me._last_coord = size(coords) - 1;
|
|
return me;
|
|
},
|
|
setDataGeo: func(cmds, coords)
|
|
{
|
|
me.reset();
|
|
me._node.setValues({cmd: cmds, 'coord-geo': coords});
|
|
me._last_cmd = size(cmds) - 1;
|
|
me._last_coord = size(coords) - 1;
|
|
return me;
|
|
},
|
|
# Add a path segment
|
|
addSegment: func(cmd, coords...)
|
|
{
|
|
var coords = _arg2valarray(coords);
|
|
var num_coords = me.num_coords[cmd];
|
|
if( size(coords) != num_coords )
|
|
debug.warn
|
|
(
|
|
"Invalid number of arguments (expected " ~ num_coords ~ ")"
|
|
);
|
|
else
|
|
{
|
|
me.setInt("cmd[" ~ (me._last_cmd += 1) ~ "]", cmd);
|
|
for(var i = 0; i < num_coords; i += 1)
|
|
me.setDouble("coord[" ~ (me._last_coord += 1) ~ "]", coords[i]);
|
|
}
|
|
|
|
return me;
|
|
},
|
|
addSegmentGeo: func(cmd, coords...)
|
|
{
|
|
var coords = _arg2valarray(coords);
|
|
var num_coords = me.num_coords[cmd];
|
|
if( size(coords) != num_coords )
|
|
debug.warn
|
|
(
|
|
"Invalid number of arguments (expected " ~ num_coords ~ ")"
|
|
);
|
|
else
|
|
{
|
|
me.setInt("cmd[" ~ (me._last_cmd += 1) ~ "]", cmd);
|
|
for(var i = 0; i < num_coords; i += 1)
|
|
me.set("coord-geo[" ~ (me._last_coord += 1) ~ "]", coords[i]);
|
|
}
|
|
|
|
return me;
|
|
},
|
|
# Remove first segment
|
|
pop_front: func me._removeSegment(1),
|
|
# Remove last segment
|
|
pop_back: func me._removeSegment(0),
|
|
# Get the number of segments
|
|
getNumSegments: func()
|
|
{
|
|
return me._last_cmd - me._first_cmd + 1;
|
|
},
|
|
# Get the number of coordinates (each command has 0..n coords)
|
|
getNumCoords: func()
|
|
{
|
|
return me._last_coord - me._first_coord + 1;
|
|
},
|
|
# Move path cursor
|
|
moveTo: func me.addSegment(me.VG_MOVE_TO_ABS, arg),
|
|
move: func me.addSegment(me.VG_MOVE_TO_REL, arg),
|
|
# Add a line
|
|
lineTo: func me.addSegment(me.VG_LINE_TO_ABS, arg),
|
|
line: func me.addSegment(me.VG_LINE_TO_REL, arg),
|
|
# Add a horizontal line
|
|
horizTo: func me.addSegment(me.VG_HLINE_TO_ABS, arg),
|
|
horiz: func me.addSegment(me.VG_HLINE_TO_REL, arg),
|
|
# Add a vertical line
|
|
vertTo: func me.addSegment(me.VG_VLINE_TO_ABS, arg),
|
|
vert: func me.addSegment(me.VG_VLINE_TO_REL, arg),
|
|
# Add a quadratic Bézier curve
|
|
quadTo: func me.addSegment(me.VG_QUAD_TO_ABS, arg),
|
|
quad: func me.addSegment(me.VG_QUAD_TO_REL, arg),
|
|
# Add a cubic Bézier curve
|
|
cubicTo: func me.addSegment(me.VG_CUBIC_TO_ABS, arg),
|
|
cubic: func me.addSegment(me.VG_CUBIC_TO_REL, arg),
|
|
# Add a smooth quadratic Bézier curve
|
|
squadTo: func me.addSegment(me.VG_SQUAD_TO_ABS, arg),
|
|
squad: func me.addSegment(me.VG_SQUAD_TO_REL, arg),
|
|
# Add a smooth cubic Bézier curve
|
|
scubicTo: func me.addSegment(me.VG_SCUBIC_TO_ABS, arg),
|
|
scubic: func me.addSegment(me.VG_SCUBIC_TO_REL, arg),
|
|
# Draw an elliptical arc (shorter counter-clockwise arc)
|
|
arcSmallCCWTo: func me.addSegment(me.VG_SCCWARC_TO_ABS, arg),
|
|
arcSmallCCW: func me.addSegment(me.VG_SCCWARC_TO_REL, arg),
|
|
# Draw an elliptical arc (shorter clockwise arc)
|
|
arcSmallCWTo: func me.addSegment(me.VG_SCWARC_TO_ABS, arg),
|
|
arcSmallCW: func me.addSegment(me.VG_SCWARC_TO_REL, arg),
|
|
# Draw an elliptical arc (longer counter-clockwise arc)
|
|
arcLargeCCWTo: func me.addSegment(me.VG_LCCWARC_TO_ABS, arg),
|
|
arcLargeCCW: func me.addSegment(me.VG_LCCWARC_TO_REL, arg),
|
|
# Draw an elliptical arc (shorter clockwise arc)
|
|
arcLargeCWTo: func me.addSegment(me.VG_LCWARC_TO_ABS, arg),
|
|
arcLargeCW: func me.addSegment(me.VG_LCWARC_TO_REL, arg),
|
|
# Close the path (implicit lineTo to first point of path)
|
|
close: func me.addSegment(me.VG_CLOSE_PATH),
|
|
|
|
# Add a (rounded) rectangle to the path
|
|
#
|
|
# @param x Position of left border
|
|
# @param y Position of top border
|
|
# @param w Width
|
|
# @param h Height
|
|
# @param cfg Optional settings (eg. {"border-top-radius": 5})
|
|
rect: func(x, y, w, h, cfg = nil)
|
|
{
|
|
var opts = (cfg != nil) ? cfg : {};
|
|
|
|
# resolve border-[top-,bottom-][left-,right-]radius
|
|
var br = opts["border-radius"];
|
|
if( typeof(br) == 'scalar' )
|
|
br = [br, br];
|
|
|
|
var _parseRadius = func(id)
|
|
{
|
|
if( (var r = opts["border-" ~ id ~ "-radius"]) == nil )
|
|
{
|
|
# parse top, bottom, left, right separate if no value specified for
|
|
# single corner
|
|
foreach(var s; ["top", "bottom", "left", "right"])
|
|
{
|
|
if( id.starts_with(s ~ "-") )
|
|
{
|
|
r = opts["border-" ~ s ~ "-radius"];
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if( r == nil )
|
|
return br;
|
|
else if( typeof(r) == 'scalar' )
|
|
return [r, r];
|
|
else
|
|
return r;
|
|
};
|
|
|
|
# top-left
|
|
if( (var r = _parseRadius("top-left")) != nil )
|
|
{
|
|
me.moveTo(x, y + r[1])
|
|
.arcSmallCWTo(r[0], r[1], 0, x + r[0], y);
|
|
}
|
|
else
|
|
me.moveTo(x, y);
|
|
|
|
# top-right
|
|
if( (r = _parseRadius("top-right")) != nil )
|
|
{
|
|
me.horizTo(x + w - r[0])
|
|
.arcSmallCWTo(r[0], r[1], 0, x + w, y + r[1]);
|
|
}
|
|
else
|
|
me.horizTo(x + w);
|
|
|
|
# bottom-right
|
|
if( (r = _parseRadius("bottom-right")) != nil )
|
|
{
|
|
me.vertTo(y + h - r[1])
|
|
.arcSmallCWTo(r[0], r[1], 0, x + w - r[0], y + h);
|
|
}
|
|
else
|
|
me.vertTo(y + h);
|
|
|
|
# bottom-left
|
|
if( (r = _parseRadius("bottom-left")) != nil )
|
|
{
|
|
me.horizTo(x + r[0])
|
|
.arcSmallCWTo(r[0], r[1], 0, x, y + h - r[1]);
|
|
}
|
|
else
|
|
me.horizTo(x);
|
|
|
|
return me.close();
|
|
},
|
|
|
|
setColor: func me.setStroke(_getColor(arg)),
|
|
getColor: func me.getStroke(),
|
|
|
|
setColorFill: func me.setFill(_getColor(arg)),
|
|
getColorFill: func me.getColorFill(),
|
|
setFill: func(fill)
|
|
{
|
|
me.set('fill', fill);
|
|
},
|
|
setStroke: func(stroke)
|
|
{
|
|
me.set('stroke', stroke);
|
|
},
|
|
getStroke: func me.get('stroke'),
|
|
|
|
setStrokeLineWidth: func(width)
|
|
{
|
|
me.setDouble('stroke-width', width);
|
|
},
|
|
# Set stroke linecap
|
|
#
|
|
# @param linecap String, "butt", "round" or "square"
|
|
#
|
|
# See http://www.w3.org/TR/SVG/painting.html#StrokeLinecapProperty for details
|
|
setStrokeLineCap: func(linecap)
|
|
{
|
|
me.set('stroke-linecap', linecap);
|
|
},
|
|
# Set stroke linejoin
|
|
#
|
|
# @param linejoin String, "miter", "round" or "bevel"
|
|
#
|
|
# See http://www.w3.org/TR/SVG/painting.html#StrokeLinejoinProperty for details
|
|
setStrokeLineJoin: func(linejoin)
|
|
{
|
|
me.set('stroke-linejoin', linejoin);
|
|
},
|
|
# Set stroke dasharray
|
|
# Set stroke dasharray
|
|
#
|
|
# @param pattern Vector, Vector of alternating dash and gap lengths
|
|
# [on1, off1, on2, ...]
|
|
setStrokeDashArray: func(pattern)
|
|
{
|
|
if( typeof(pattern) == 'vector' )
|
|
me.set('stroke-dasharray', string.join(',', pattern));
|
|
else
|
|
debug.warn("setStrokeDashArray: vector expected!");
|
|
|
|
return me;
|
|
},
|
|
|
|
# private:
|
|
_removeSegment: func(front)
|
|
{
|
|
if( me.getNumSegments() < 1 )
|
|
{
|
|
debug.warn("No segment available");
|
|
return me;
|
|
}
|
|
|
|
var cmd = front ? me._first_cmd : me._last_cmd;
|
|
var num_coords = me.num_coords[ me.get("cmd[" ~ cmd ~ "]") ];
|
|
if( me.getNumCoords() < num_coords )
|
|
{
|
|
debug.warn("To few coords available");
|
|
}
|
|
|
|
me._node.removeChild("cmd", cmd);
|
|
|
|
var first_coord = front ? me._first_coord : me._last_coord - num_coords + 1;
|
|
for(var i = 0; i < num_coords; i += 1)
|
|
me._node.removeChild("coord", first_coord + i);
|
|
|
|
if( front )
|
|
{
|
|
me._first_cmd += 1;
|
|
me._first_coord += num_coords;
|
|
}
|
|
else
|
|
{
|
|
me._last_cmd -= 1;
|
|
me._last_coord -= num_coords;
|
|
}
|
|
|
|
return me;
|
|
},
|
|
};
|
|
|
|
# Image
|
|
# ==============================================================================
|
|
# Class for an image element on a canvas
|
|
#
|
|
var Image = {
|
|
new: func(ghost)
|
|
{
|
|
return {parents: [Image, Element.new(ghost)]};
|
|
},
|
|
# Set image file to be used
|
|
#
|
|
# @param file Path to file or canvas (Use canvas://... for canvas, eg.
|
|
# canvas://by-index/texture[0])
|
|
setFile: func(file)
|
|
{
|
|
me.set("src", file);
|
|
},
|
|
# Set rectangular region of source image to be used
|
|
#
|
|
# @param left Rectangle minimum x coordinate
|
|
# @param top Rectangle minimum y coordinate
|
|
# @param right Rectangle maximum x coordinate
|
|
# @param bottom Rectangle maximum y coordinate
|
|
# @param normalized Whether to use normalized ([0,1]) or image
|
|
# ([0, image_width]/[0, image_height]) coordinates
|
|
setSourceRect: func
|
|
{
|
|
# Work with both positional arguments and named arguments.
|
|
# Support first argument being a vector instead of four separate ones.
|
|
if (size(arg) == 1)
|
|
arg = arg[0];
|
|
elsif (size(arg) and size(arg) < 4 and typeof(arg[0]) == 'vector')
|
|
arg = arg[0]~arg[1:];
|
|
if (!contains(caller(0)[0], "normalized")) {
|
|
if (size(arg) > 4)
|
|
var normalized = arg[4];
|
|
else var normalized = 1;
|
|
}
|
|
if (size(arg) >= 3)
|
|
var (left,top,right,bottom) = arg;
|
|
|
|
me._node.getNode("source", 1).setValues({
|
|
left: left,
|
|
top: top,
|
|
right: right,
|
|
bottom: bottom,
|
|
normalized: normalized
|
|
});
|
|
return me;
|
|
},
|
|
# Set size of image element
|
|
#
|
|
# @param width
|
|
# @param height
|
|
# - or -
|
|
# @param size ([width, height])
|
|
setSize: func
|
|
{
|
|
me._node.setValues({size: _arg2valarray(arg)});
|
|
return me;
|
|
}
|
|
};
|
|
|
|
# Element factories used by #Group elements to create children
|
|
Group._element_factories = {
|
|
"group": Group.new,
|
|
"map": Map.new,
|
|
"text": Text.new,
|
|
"path": Path.new,
|
|
"image": Image.new
|
|
};
|
|
|
|
# Canvas
|
|
# ==============================================================================
|
|
# Class for a canvas
|
|
#
|
|
var Canvas = {
|
|
# Place this canvas somewhere onto the object. Pass criterions for placement
|
|
# as a hash, eg:
|
|
#
|
|
# my_canvas.addPlacement({
|
|
# "texture": "EICAS.png",
|
|
# "node": "PFD-Screen",
|
|
# "parent": "Some parent name"
|
|
# });
|
|
#
|
|
# Note that we can choose whichever of the three filter criterions we use for
|
|
# matching the target object for our placement. If none of the three fields is
|
|
# given every texture of the model will be replaced.
|
|
addPlacement: func(vals)
|
|
{
|
|
var placement = me._node.addChild("placement", 0, 0);
|
|
placement.setValues(vals);
|
|
return placement;
|
|
},
|
|
# Create a new group with the given name
|
|
#
|
|
# @param id Optional id/name for the group
|
|
createGroup: func(id = nil)
|
|
{
|
|
return Group.new(me._createGroup(id));
|
|
},
|
|
# Get the group with the given name
|
|
getGroup: func(id)
|
|
{
|
|
return Group.new(me._getGroup(id));
|
|
},
|
|
# Set the background color
|
|
#
|
|
# @param color Vector of 3 or 4 values in [0, 1]
|
|
setColorBackground: func me.set('background', _getColor(arg)),
|
|
getColorBackground: func me.get('background'),
|
|
# Get path of canvas to be used eg. in Image::setFile
|
|
getPath: func()
|
|
{
|
|
return "canvas://by-index/texture[" ~ me._node.getIndex() ~ "]";
|
|
},
|
|
# Destructor
|
|
#
|
|
# releases associated canvas and makes this object unusable
|
|
del: func
|
|
{
|
|
me._node.remove();
|
|
me.parents = nil; # ensure all ghosts get destroyed
|
|
}
|
|
};
|
|
|
|
# @param g Canvas ghost
|
|
var wrapCanvas = func(g)
|
|
{
|
|
if( g != nil and g._impl == nil )
|
|
g._impl = {
|
|
parents: [PropertyElement, Canvas],
|
|
_node: props.wrapNode(g._node_ghost)
|
|
};
|
|
return g;
|
|
}
|
|
|
|
# Create a new canvas. Pass parameters as hash, eg:
|
|
#
|
|
# var my_canvas = canvas.new({
|
|
# "name": "PFD-Test",
|
|
# "size": [512, 512],
|
|
# "view": [768, 1024],
|
|
# "mipmapping": 1
|
|
# });
|
|
var new = func(vals)
|
|
{
|
|
var m = wrapCanvas(_newCanvasGhost());
|
|
m._node.setValues(vals);
|
|
return m;
|
|
};
|
|
|
|
# Get the first existing canvas with the given name
|
|
#
|
|
# @param name Name of the canvas
|
|
# @return #Canvas, if canvas with #name exists
|
|
# nil, otherwise
|
|
var get = func(arg)
|
|
{
|
|
if( isa(arg, props.Node) )
|
|
var node = arg;
|
|
else if( typeof(arg) == "hash" )
|
|
var node = props.Node.new(arg);
|
|
else
|
|
die("canvas.new: Invalid argument.");
|
|
|
|
return wrapCanvas(_getCanvasGhost(node._g));
|
|
};
|
|
|
|
var getDesktop = func()
|
|
{
|
|
return Group.new(_getDesktopGhost());
|
|
};
|