mirror of
https://github.com/smallmain/cocos-enhance-kit.git
synced 2025-01-14 15:01:07 +00:00
620 lines
18 KiB
C++
620 lines
18 KiB
C++
#include "platform/CCCanvasRenderingContext2D.h"
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#include "base/ccTypes.h"
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#include "base/csscolorparser.hpp"
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#include "cocos/scripting/js-bindings/jswrapper/SeApi.h"
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#include "platform/android/jni/JniHelper.h"
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#include "platform/android/jni/JniImp.h"
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#include <regex>
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#ifndef JCLS_CANVASIMPL
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#define JCLS_CANVASIMPL "org/cocos2dx/lib/CanvasRenderingContext2DImpl"
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#endif
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using namespace cocos2d;
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enum class CanvasTextAlign {
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LEFT,
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CENTER,
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RIGHT
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};
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enum class CanvasTextBaseline {
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TOP,
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MIDDLE,
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BOTTOM
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};
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class CanvasRenderingContext2DImpl
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{
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public:
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CanvasRenderingContext2DImpl()
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{
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jobject obj = JniHelper::newObject(JCLS_CANVASIMPL);
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_obj = JniHelper::getEnv()->NewGlobalRef(obj);
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JniHelper::getEnv()->DeleteLocalRef(obj);
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}
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~CanvasRenderingContext2DImpl()
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{
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JniHelper::getEnv()->DeleteGlobalRef(_obj);
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}
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void recreateBuffer(float w, float h)
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{
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_bufferWidth = w;
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_bufferHeight = h;
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if (_bufferWidth < 1.0f || _bufferHeight < 1.0f)
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return;
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JniHelper::callObjectVoidMethod(_obj, JCLS_CANVASIMPL, "recreateBuffer", w, h);
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fillData();
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}
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void beginPath()
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{
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JniHelper::callObjectVoidMethod(_obj, JCLS_CANVASIMPL, "beginPath");
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}
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void closePath()
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{
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JniHelper::callObjectVoidMethod(_obj, JCLS_CANVASIMPL, "closePath");
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}
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void moveTo(float x, float y)
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{
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JniHelper::callObjectVoidMethod(_obj, JCLS_CANVASIMPL, "moveTo", x, y);
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}
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void lineTo(float x, float y)
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{
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JniHelper::callObjectVoidMethod(_obj, JCLS_CANVASIMPL, "lineTo", x, y);
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}
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void stroke()
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{
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if (_bufferWidth < 1.0f || _bufferHeight < 1.0f)
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return;
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JniHelper::callObjectVoidMethod(_obj, JCLS_CANVASIMPL, "stroke");
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fillData();
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}
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void fill()
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{
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if (_bufferWidth < 1.0f || _bufferHeight < 1.0f)
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return;
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JniHelper::callObjectVoidMethod(_obj, JCLS_CANVASIMPL, "fill");
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fillData();
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}
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void saveContext()
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{
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JniHelper::callObjectVoidMethod(_obj, JCLS_CANVASIMPL, "saveContext");
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}
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void restoreContext()
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{
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JniHelper::callObjectVoidMethod(_obj, JCLS_CANVASIMPL, "restoreContext");
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}
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void rect(float x, float y, float w, float h)
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{
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if (_bufferWidth < 1.0f || _bufferHeight < 1.0f)
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return;
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JniHelper::callObjectVoidMethod(_obj, JCLS_CANVASIMPL, "rect", x, y, w, h);
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fillData();
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}
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void clearRect(float x, float y, float w, float h)
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{
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if (_bufferWidth < 1.0f || _bufferHeight < 1.0f)
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return;
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if (x >= _bufferWidth || y >= _bufferHeight)
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return;
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if (x + w > _bufferWidth)
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w = _bufferWidth - x;
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if (y + h > _bufferHeight)
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h = _bufferHeight - y;
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JniHelper::callObjectVoidMethod(_obj, JCLS_CANVASIMPL, "clearRect", x, y, w, h);
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fillData();
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}
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void fillRect(float x, float y, float w, float h)
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{
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if (_bufferWidth < 1.0f || _bufferHeight < 1.0f)
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return;
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if (x >= _bufferWidth || y >= _bufferHeight)
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return;
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if (x + w > _bufferWidth)
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w = _bufferWidth - x;
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if (y + h > _bufferHeight)
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h = _bufferHeight - y;
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JniHelper::callObjectVoidMethod(_obj, JCLS_CANVASIMPL, "fillRect", x, y, w, h);
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fillData();
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}
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void fillText(const std::string& text, float x, float y, float maxWidth)
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{
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if (text.empty() || _bufferWidth < 1.0f || _bufferHeight < 1.0f)
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return;
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JniHelper::callObjectVoidMethod(_obj, JCLS_CANVASIMPL, "fillText", text, x, y, maxWidth);
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fillData();
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}
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void strokeText(const std::string& text, float x, float y, float maxWidth)
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{
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if (text.empty() || _bufferWidth < 1.0f || _bufferHeight < 1.0f)
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return;
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JniHelper::callObjectVoidMethod(_obj, JCLS_CANVASIMPL, "strokeText", text, x, y, maxWidth);
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fillData();
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}
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float measureText(const std::string& text)
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{
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if (text.empty())
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return 0.0f;
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return JniHelper::callObjectFloatMethod(_obj, JCLS_CANVASIMPL, "measureText", text);
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}
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void updateFont(const std::string& fontName, float fontSize, bool bold, bool italic, bool oblique, bool smallCaps)
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{
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JniHelper::callObjectVoidMethod(_obj, JCLS_CANVASIMPL, "updateFont", fontName, fontSize, bold, italic, oblique, smallCaps);
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}
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void setLineCap(const std::string& lineCap) {
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JniHelper::callObjectVoidMethod(_obj, JCLS_CANVASIMPL, "setLineCap", lineCap);
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}
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void setLineJoin(const std::string& lineJoin) {
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JniHelper::callObjectVoidMethod(_obj, JCLS_CANVASIMPL, "setLineJoin", lineJoin);
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}
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void setTextAlign(CanvasTextAlign align)
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{
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JniHelper::callObjectVoidMethod(_obj, JCLS_CANVASIMPL, "setTextAlign", (int)align);
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}
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void setTextBaseline(CanvasTextBaseline baseline)
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{
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JniHelper::callObjectVoidMethod(_obj, JCLS_CANVASIMPL, "setTextBaseline", (int)baseline);
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}
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void setFillStyle(float r, float g, float b, float a)
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{
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JniHelper::callObjectVoidMethod(_obj, JCLS_CANVASIMPL, "setFillStyle", r, g, b, a);
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}
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void setStrokeStyle(float r, float g, float b, float a)
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{
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JniHelper::callObjectVoidMethod(_obj, JCLS_CANVASIMPL, "setStrokeStyle", r, g, b, a);
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}
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void setLineWidth(float lineWidth)
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{
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JniHelper::callObjectVoidMethod(_obj, JCLS_CANVASIMPL, "setLineWidth", lineWidth);
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}
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void _fillImageData(const Data &imageData, float imageWidth, float imageHeight, float offsetX, float offsetY) {
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if (_bufferWidth < 1.0f || _bufferHeight < 1.0f)
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return;
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jbyteArray arr = JniHelper::getEnv()->NewByteArray(imageData.getSize());
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JniHelper::getEnv()->SetByteArrayRegion(arr, 0, imageData.getSize(),
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(const jbyte *) imageData.getBytes());
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JniHelper::callObjectVoidMethod(_obj, JCLS_CANVASIMPL, "_fillImageData", arr, imageWidth,
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imageHeight, offsetX, offsetY);
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JniHelper::getEnv()->DeleteLocalRef(arr);
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fillData();
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}
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const Data& getDataRef() const
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{
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return _data;
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}
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void setPremultiply(bool multiply)
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{
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_premultiply = multiply;
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}
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#define CLAMP(V, HI) std::min( (V), (HI) )
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void unMultiplyAlpha(unsigned char* ptr, ssize_t size)
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{
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// Android source data is not premultiplied alpha when API >= 19
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// please refer CanvasRenderingContext2DImpl::recreateBuffer(float w, float h)
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// in CanvasRenderingContext2DImpl.java
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// if (getAndroidSDKInt() >= 19)
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// return;
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float alpha;
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for (int i = 0; i < size; i += 4)
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{
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alpha = (float)ptr[i + 3];
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if (alpha > 0)
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{
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ptr[i] = CLAMP((int)((float)ptr[i] / alpha * 255), 255);
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ptr[i+1] = CLAMP((int)((float)ptr[i+1] / alpha * 255), 255);
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ptr[i+2] = CLAMP((int)((float)ptr[i+2] / alpha * 255), 255);
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}
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}
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}
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void fillData()
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{
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jbyteArray arr = JniHelper::callObjectByteArrayMethod(_obj, JCLS_CANVASIMPL, "getDataRef");
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jsize len = JniHelper::getEnv()->GetArrayLength(arr);
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jbyte* jbarray = (jbyte *)malloc(len * sizeof(jbyte));
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JniHelper::getEnv()->GetByteArrayRegion(arr,0,len,jbarray);
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if (!_premultiply)
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{
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unMultiplyAlpha( (unsigned char*) jbarray, len);
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}
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_data.fastSet((unsigned char*) jbarray, len); //IDEA: DON'T create new jbarray every time.
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JniHelper::getEnv()->DeleteLocalRef(arr);
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}
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private:
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jobject _obj = nullptr;
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Data _data;
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float _bufferWidth = 0.0f;
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float _bufferHeight = 0.0f;
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bool _premultiply = true;
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};
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namespace {
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void fillRectWithColor(uint8_t* buf, uint32_t totalWidth, uint32_t totalHeight, uint32_t x, uint32_t y, uint32_t width, uint32_t height, uint8_t r, uint8_t g, uint8_t b)
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{
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assert(x + width <= totalWidth);
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assert(y + height <= totalHeight);
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uint32_t y0 = totalHeight - (y + height);
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uint32_t y1 = totalHeight - y;
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uint8_t* p;
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for (uint32_t offsetY = y0; offsetY < y1; ++offsetY)
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{
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for (uint32_t offsetX = x; offsetX < (x + width); ++offsetX)
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{
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p = buf + (totalWidth * offsetY + offsetX) * 3;
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*p++ = r;
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*p++ = g;
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*p++ = b;
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}
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}
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}
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}
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NS_CC_BEGIN
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CanvasGradient::CanvasGradient()
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{
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// SE_LOGD("CanvasGradient constructor: %p\n", this);
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}
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CanvasGradient::~CanvasGradient()
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{
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// SE_LOGD("CanvasGradient destructor: %p\n", this);
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}
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void CanvasGradient::addColorStop(float offset, const std::string& color)
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{
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// SE_LOGD("CanvasGradient::addColorStop: %p\n", this);
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}
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// CanvasRenderingContext2D
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CanvasRenderingContext2D::CanvasRenderingContext2D(float width, float height)
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: __width(width)
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, __height(height)
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{
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// SE_LOGD("CanvasRenderingContext2D constructor: %p, width: %f, height: %f\n", this, width, height);
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_impl = new CanvasRenderingContext2DImpl();
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recreateBufferIfNeeded();
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}
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CanvasRenderingContext2D::~CanvasRenderingContext2D()
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{
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// SE_LOGD("CanvasRenderingContext2D destructor: %p\n", this);
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delete _impl;
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}
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void CanvasRenderingContext2D::recreateBufferIfNeeded()
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{
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if (_isBufferSizeDirty)
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{
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_isBufferSizeDirty = false;
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// SE_LOGD("Recreate buffer %p, w: %f, h:%f\n", this, __width, __height);
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_impl->recreateBuffer(__width, __height);
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if (_canvasBufferUpdatedCB != nullptr)
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_canvasBufferUpdatedCB(_impl->getDataRef());
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}
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}
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void CanvasRenderingContext2D::rect(float x, float y, float width, float height)
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{
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// SE_LOGD("CanvasRenderingContext2D::rect: %p, %f, %f, %f, %f\n", this, x, y, width, height);
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recreateBufferIfNeeded();
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_impl->rect(x, y, width, height);
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}
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void CanvasRenderingContext2D::clearRect(float x, float y, float width, float height)
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{
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// SE_LOGD("CanvasRenderingContext2D::clearRect: %p, %f, %f, %f, %f\n", this, x, y, width, height);
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recreateBufferIfNeeded();
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_impl->clearRect(x, y, width, height);
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}
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void CanvasRenderingContext2D::fillRect(float x, float y, float width, float height)
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{
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recreateBufferIfNeeded();
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_impl->fillRect(x, y, width, height);
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if (_canvasBufferUpdatedCB != nullptr)
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_canvasBufferUpdatedCB(_impl->getDataRef());
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}
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void CanvasRenderingContext2D::fillText(const std::string& text, float x, float y, float maxWidth)
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{
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// SE_LOGD("CanvasRenderingContext2D::fillText: %s, %f, %f, %f\n", text.c_str(), x, y, maxWidth);
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if (text.empty())
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return;
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recreateBufferIfNeeded();
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_impl->fillText(text, x, y, maxWidth);
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if (_canvasBufferUpdatedCB != nullptr)
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_canvasBufferUpdatedCB(_impl->getDataRef());
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}
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void CanvasRenderingContext2D::strokeText(const std::string& text, float x, float y, float maxWidth)
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{
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// SE_LOGD("CanvasRenderingContext2D::strokeText: %s, %f, %f, %f\n", text.c_str(), x, y, maxWidth);
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if (text.empty())
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return;
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recreateBufferIfNeeded();
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_impl->strokeText(text, x, y, maxWidth);
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if (_canvasBufferUpdatedCB != nullptr)
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_canvasBufferUpdatedCB(_impl->getDataRef());
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}
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cocos2d::Size CanvasRenderingContext2D::measureText(const std::string& text)
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{
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// SE_LOGD("CanvasRenderingContext2D::measureText: %s\n", text.c_str());
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return cocos2d::Size(_impl->measureText(text), 0);
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}
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CanvasGradient* CanvasRenderingContext2D::createLinearGradient(float x0, float y0, float x1, float y1)
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{
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return nullptr;
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}
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void CanvasRenderingContext2D::save()
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{
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_impl->saveContext();
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}
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void CanvasRenderingContext2D::beginPath()
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{
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_impl->beginPath();
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}
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void CanvasRenderingContext2D::closePath()
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{
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_impl->closePath();
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}
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void CanvasRenderingContext2D::moveTo(float x, float y)
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{
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_impl->moveTo(x, y);
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}
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void CanvasRenderingContext2D::lineTo(float x, float y)
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{
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_impl->lineTo(x, y);
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}
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void CanvasRenderingContext2D::stroke()
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{
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_impl->stroke();
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if (_canvasBufferUpdatedCB != nullptr)
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_canvasBufferUpdatedCB(_impl->getDataRef());
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}
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void CanvasRenderingContext2D::fill()
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{
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_impl->fill();
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if (_canvasBufferUpdatedCB != nullptr)
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_canvasBufferUpdatedCB(_impl->getDataRef());
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}
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void CanvasRenderingContext2D::restore()
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{
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_impl->restoreContext();
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}
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void CanvasRenderingContext2D::setCanvasBufferUpdatedCallback(const CanvasBufferUpdatedCallback& cb)
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{
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_canvasBufferUpdatedCB = cb;
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}
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void CanvasRenderingContext2D::setPremultiply(bool multiply)
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{
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_impl->setPremultiply(multiply);
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}
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void CanvasRenderingContext2D::set__width(float width)
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{
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// SE_LOGD("CanvasRenderingContext2D::set__width: %f\n", width);
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__width = width;
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_isBufferSizeDirty = true;
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recreateBufferIfNeeded();
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}
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void CanvasRenderingContext2D::set__height(float height)
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{
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// SE_LOGD("CanvasRenderingContext2D::set__height: %f\n", height);
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__height = height;
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_isBufferSizeDirty = true;
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recreateBufferIfNeeded();
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}
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void CanvasRenderingContext2D::set_lineWidth(float lineWidth)
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{
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_lineWidth = lineWidth;
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_impl->setLineWidth(lineWidth);
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}
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void CanvasRenderingContext2D::set_lineJoin(const std::string& lineJoin)
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{
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if(lineJoin.empty()) return ;
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_impl->setLineJoin(lineJoin);
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}
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void CanvasRenderingContext2D::set_lineCap(const std::string& lineCap)
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{
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if(lineCap.empty()) return ;
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_impl->setLineCap(lineCap);
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}
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/*
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* support format e.g.: "oblique bold small-caps 18px Arial"
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* "italic bold small-caps 25px Arial"
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* "italic 25px Arial"
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* */
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void CanvasRenderingContext2D::set_font(const std::string& font)
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{
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if (_font != font)
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{
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_font = font;
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std::string fontName = "sans-serif";
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std::string fontSizeStr = "30";
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std::regex re("\\s*((\\d+)([\\.]\\d+)?)px\\s+([^\\r\\n]*)");
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std::match_results<std::string::const_iterator> results;
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if (std::regex_search(_font.cbegin(), _font.cend(), results, re))
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{
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fontSizeStr = results[2].str();
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// support get font name from `60px American` or `60px "American abc-abc_abc"`
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// support get font name contain space,example `times new roman`
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// if regex rule that does not conform to the rules,such as Chinese,it defaults to sans-serif
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std::match_results<std::string::const_iterator> fontResults;
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std::regex fontRe("([\\w\\s-]+|\"[\\w\\s-]+\"$)");
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if(std::regex_match(results[4].str(), fontResults, fontRe))
|
|
{
|
|
fontName = results[4].str();
|
|
}
|
|
}
|
|
|
|
float fontSize = atof(fontSizeStr.c_str());
|
|
bool isBold = font.find("bold", 0) != std::string::npos;
|
|
bool isItalic = font.find("italic", 0) != std::string::npos;
|
|
bool isSmallCaps = font.find("small-caps", 0) != std::string::npos;
|
|
bool isOblique = font.find("oblique", 0) != std::string::npos;
|
|
//font-style: italic, oblique, normal
|
|
//font-weight: normal, bold
|
|
//font-variant: normal, small-caps
|
|
_impl->updateFont(fontName, fontSize, isBold, isItalic, isOblique, isSmallCaps);
|
|
|
|
}
|
|
}
|
|
|
|
void CanvasRenderingContext2D::set_textAlign(const std::string& textAlign)
|
|
{
|
|
// SE_LOGD("CanvasRenderingContext2D::set_textAlign: %s\n", textAlign.c_str());
|
|
if (textAlign == "left")
|
|
{
|
|
_impl->setTextAlign(CanvasTextAlign::LEFT);
|
|
}
|
|
else if (textAlign == "center" || textAlign == "middle")
|
|
{
|
|
_impl->setTextAlign(CanvasTextAlign::CENTER);
|
|
}
|
|
else if (textAlign == "right")
|
|
{
|
|
_impl->setTextAlign(CanvasTextAlign::RIGHT);
|
|
}
|
|
else
|
|
{
|
|
assert(false);
|
|
}
|
|
}
|
|
|
|
void CanvasRenderingContext2D::set_textBaseline(const std::string& textBaseline)
|
|
{
|
|
// SE_LOGD("CanvasRenderingContext2D::set_textBaseline: %s\n", textBaseline.c_str());
|
|
if (textBaseline == "top")
|
|
{
|
|
_impl->setTextBaseline(CanvasTextBaseline::TOP);
|
|
}
|
|
else if (textBaseline == "middle")
|
|
{
|
|
_impl->setTextBaseline(CanvasTextBaseline::MIDDLE);
|
|
}
|
|
else if (textBaseline == "bottom" || textBaseline == "alphabetic") //REFINE:, how to deal with alphabetic, currently we handle it as bottom mode.
|
|
{
|
|
_impl->setTextBaseline(CanvasTextBaseline::BOTTOM);
|
|
}
|
|
else
|
|
{
|
|
assert(false);
|
|
}
|
|
}
|
|
|
|
void CanvasRenderingContext2D::set_fillStyle(const std::string& fillStyle)
|
|
{
|
|
CSSColorParser::Color color = CSSColorParser::parse(fillStyle);
|
|
_impl->setFillStyle(color.r/255.0f, color.g/255.0f, color.b/255.0f, color.a);
|
|
// SE_LOGD("CanvasRenderingContext2D::set_fillStyle: %s, (%d, %d, %d, %f)\n", fillStyle.c_str(), color.r, color.g, color.b, color.a);
|
|
}
|
|
|
|
void CanvasRenderingContext2D::set_strokeStyle(const std::string& strokeStyle)
|
|
{
|
|
CSSColorParser::Color color = CSSColorParser::parse(strokeStyle);
|
|
_impl->setStrokeStyle(color.r/255.0f, color.g/255.0f, color.b/255.0f, color.a);
|
|
}
|
|
|
|
void CanvasRenderingContext2D::set_globalCompositeOperation(const std::string& globalCompositeOperation)
|
|
{
|
|
// SE_LOGE("%s isn't implemented!\n", __FUNCTION__);
|
|
}
|
|
|
|
void CanvasRenderingContext2D::_fillImageData(const Data& imageData, float imageWidth, float imageHeight, float offsetX, float offsetY)
|
|
{
|
|
_impl->_fillImageData(imageData, imageWidth, imageHeight, offsetX, offsetY);
|
|
if (_canvasBufferUpdatedCB != nullptr)
|
|
_canvasBufferUpdatedCB(_impl->getDataRef());
|
|
}
|
|
// transform
|
|
//REFINE:
|
|
|
|
void CanvasRenderingContext2D::translate(float x, float y)
|
|
{
|
|
// SE_LOGE("%s isn't implemented!\n", __FUNCTION__);
|
|
}
|
|
|
|
void CanvasRenderingContext2D::scale(float x, float y)
|
|
{
|
|
// SE_LOGE("%s isn't implemented!\n", __FUNCTION__);
|
|
}
|
|
|
|
void CanvasRenderingContext2D::rotate(float angle)
|
|
{
|
|
// SE_LOGE("%s isn't implemented!\n", __FUNCTION__);
|
|
}
|
|
|
|
void CanvasRenderingContext2D::transform(float a, float b, float c, float d, float e, float f)
|
|
{
|
|
// SE_LOGE("%s isn't implemented!\n", __FUNCTION__);
|
|
}
|
|
|
|
void CanvasRenderingContext2D::setTransform(float a, float b, float c, float d, float e, float f)
|
|
{
|
|
// SE_LOGE("%s isn't implemented!\n", __FUNCTION__);
|
|
}
|
|
|
|
NS_CC_END
|