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Merge pull request #4192 from yurydelendik/shading-r

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Implements shading types 4-7
This commit is contained in:
Brendan Dahl 2014-01-30 13:36:01 -08:00
commit 1e4d35c3a0
6 changed files with 3639 additions and 9 deletions
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583
src/core/pattern.js
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@ -15,13 +15,18 @@
* limitations under the License.
*/
/* globals ColorSpace, PDFFunction, Util, error, warn, info, isArray, isStream,
isPDFFunction, UnsupportedManager, UNSUPPORTED_FEATURES */
assert, isPDFFunction, UnsupportedManager, UNSUPPORTED_FEATURES */
'use strict';
var PatternType = {
FUNCTION_BASED: 1,
AXIAL: 2,
RADIAL: 3
RADIAL: 3,
FREE_FORM_MESH: 4,
LATTICE_FORM_MESH: 5,
COONS_PATCH_MESH: 6,
TENSOR_PATCH_MESH: 7
};
var Pattern = (function PatternClosure() {
@ -49,6 +54,11 @@ var Pattern = (function PatternClosure() {
case PatternType.RADIAL:
// Both radial and axial shadings are handled by RadialAxial shading.
return new Shadings.RadialAxial(dict, matrix, xref, res);
case PatternType.FREE_FORM_MESH:
case PatternType.LATTICE_FORM_MESH:
case PatternType.COONS_PATCH_MESH:
case PatternType.TENSOR_PATCH_MESH:
return new Shadings.Mesh(shading, matrix, xref, res);
default:
UnsupportedManager.notify(UNSUPPORTED_FEATURES.shadingPattern);
return new Shadings.Dummy();
@ -213,6 +223,575 @@ Shadings.RadialAxial = (function RadialAxialClosure() {
return RadialAxial;
})();
// All mesh shading. For now, they will be presented as set of the triangles
// to be drawn on the canvas and rgb color for each vertex.
Shadings.Mesh = (function MeshClosure() {
function MeshStreamReader(stream, context) {
this.stream = stream;
this.context = context;
this.buffer = 0;
this.bufferLength = 0;
}
MeshStreamReader.prototype = {
get hasData() {
if (this.stream.end) {
return this.stream.pos < this.stream.end;
}