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putText with font and color support

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This commit is contained in:
Morgan 'ARR\!' Allen 2014-04-17 14:08:02 -07:00
parent 857e88fa21
commit ee25c1f2ee
4 changed files with 78 additions and 0 deletions
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1
package.json
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@ -14,6 +14,7 @@
},
"license": "MIT",
"scripts": {
"build": "node-gyp build",
"preinstall": "node-gyp clean rebuild",
"test": "vows test/unit.js"
},

42
src/Matrix.cc
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@ -97,6 +97,8 @@ Matrix::Init(Handle<Object> target) {
NODE_SET_PROTOTYPE_METHOD(constructor, "pushBack", PushBack);
NODE_SET_PROTOTYPE_METHOD(constructor, "putText", PutText);
NODE_SET_METHOD(constructor, "Eye", Eye);
@ -1650,3 +1652,43 @@ Matrix::PushBack(const v8::Arguments& args) {
return scope.Close(args.This());
}
Handle<Value>
Matrix::PutText(const v8::Arguments& args) {
HandleScope scope;
Matrix *self = ObjectWrap::Unwrap<Matrix>(args.This());
v8::String::AsciiValue textString(args[0]);
char *text = (char *) malloc(textString.length() + 1);
strcpy(text, *textString);
int x = args[1]->IntegerValue();
int y = args[2]->IntegerValue();
v8::String::AsciiValue fontString(args[3]);
char *font = (char *) malloc(fontString.length() + 1);
strcpy(font, *fontString);
int constFont = cv::FONT_HERSHEY_SIMPLEX;
if (!strcmp(font, "HERSEY_SIMPLEX")) { constFont = cv::FONT_HERSHEY_SIMPLEX; }
else if (!strcmp(font, "HERSEY_PLAIN")) { constFont = cv::FONT_HERSHEY_PLAIN; }
else if (!strcmp(font, "HERSEY_DUPLEX")) { constFont = cv::FONT_HERSHEY_DUPLEX; }
else if (!strcmp(font, "HERSEY_COMPLEX")) { constFont = cv::FONT_HERSHEY_COMPLEX; }
else if (!strcmp(font, "HERSEY_TRIPLEX")) { constFont = cv::FONT_HERSHEY_TRIPLEX; }
else if (!strcmp(font, "HERSEY_COMPLEX_SMALL")) { constFont = cv::FONT_HERSHEY_COMPLEX_SMALL; }
else if (!strcmp(font, "HERSEY_SCRIPT_SIMPLEX")) { constFont = cv::FONT_HERSHEY_SCRIPT_SIMPLEX; }
else if (!strcmp(font, "HERSEY_SCRIPT_COMPLEX")) { constFont = cv::FONT_HERSHEY_SCRIPT_COMPLEX; }
else if (!strcmp(font, "HERSEY_SCRIPT_SIMPLEX")) { constFont = cv::FONT_HERSHEY_SCRIPT_SIMPLEX; }
cv::Scalar color(0, 0, 255);
if(args[4]->IsArray()) {
Local<Object> objColor = args[4]->ToObject();
color = setColor(objColor);
}
cv::putText(self->mat, text, cv::Point(x, y), constFont, 1, color, 2);
return scope.Close(Undefined());
}

2
src/Matrix.h
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@ -90,6 +90,8 @@ class Matrix: public node::ObjectWrap {
JSFUNC(MinMaxLoc)
JSFUNC(PushBack)
JSFUNC(PutText)
/*
static Handle<Value> Val(const Arguments& args);
static Handle<Value> RowRange(const Arguments& args);

33
test/unit.js
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@ -351,6 +351,39 @@ vows.describe('Smoke Tests OpenCV').addBatch({
}
, "putText": {
topic: function() {
var cv = require('../lib/opencv')
, self = this
cv.readImage('./examples/coin1.jpg', function(e, im){
self.callback(null, im);
});
},
"fonts": function(im) {
function rnd() {
return Math.round(Math.random() * 255);
};
var y = 0;
([
"HERSEY_SIMPLEX",
"HERSEY_PLAIN",
"HERSEY_DUPLEX",
"HERSEY_COMPLEX",
"HERSEY_TRIPLEX",
"HERSEY_COMPLEX_SMALL",
"HERSEY_SCRIPT_SIMPLEX",
"HERSEY_SCRIPT_COMPLEX",
"HERSEY_SCRIPT_SIMPLEX"
]).forEach(function(font) {
im.putText("Some text", 0, y += 20, font, [rnd(), rnd(), rnd()]);
});
im.save("./examples/coin1-with-text.jpg");
}
}
}).export(module);