void Renderer2D::drawCircle( const attributes_2d& attributes, const float32_t& radius,
const float32_t& border, const color_argb& color, const color_argb& borderColor,
const Image2D& image, const float32_t& image_alpha, const float32_t& image_pos_x,
const float32_t& image_pos_y, const float32_t& image_width, const float32_t& image_height,
const float32_t& image_rotation )
{
Context2D* context = _context2D;
nvgSave( context );
nvgBeginPath( context );
nvgTranslate( context, attributes.position[0], attributes.position[1]);
nvgSave( context );
nvgRotate( context, attributes.rotation );
nvgCircle( context, 0, 0, radius * attributes.scale );
if( image != 0 )
{
NVGpaint paint = nvgImagePattern( context, image_pos_x-image_width/2,
image_pos_y - image_height/2, image_width, image_height, image_rotation,
image, image_alpha );
nvgFillPaint( context, paint);
}
else
{
nvgFillColor( context, nvgRGBA( color.r, color.g, color.b, color.a) );
}
nvgFill(context);
nvgStrokeColor( context, nvgRGBA( borderColor.r, borderColor.g, borderColor.b, borderColor.a) );
nvgStrokeWidth( context, border );
nvgStroke( context );
nvgRestore( context );
nvgRestore( context );
}
void Renderer2D::drawRectangle( const attributes_2d& attributes, const float32_t& width, const float32_t& height,
const float32_t& border, const color_argb& color, const color_argb& borderColor,
const Image2D& image, const float32_t& image_alpha, const float32_t& image_pos_x,
const float32_t& image_pos_y, const float32_t& image_width, const float32_t& image_height,
const float32_t& image_rotation )
{
Context2D* context = _context2D;
const float32_t sWidth = width * attributes.scale;
const float32_t sHeight = height * attributes.scale;
nvgSave( context );
nvgBeginPath( context );
nvgTranslate( context, attributes.position[0], attributes.position[1] );
nvgSave( context );
nvgRotate( context, attributes.rotation );
nvgRect( context, -sWidth/2, -sHeight/2, sWidth, sHeight );
if( image != 0 )
{
NVGpaint paint = nvgImagePattern( context, (-sWidth/2)+image_pos_x, (-sHeight/2)+image_pos_y,
image_width, image_height, image_rotation, image, image_alpha );
nvgFillPaint( context, paint);
}
else
{
nvgFillColor( context, nvgRGBA( color.r, color.g, color.b, color.a) );
}
nvgFill( context );
nvgStrokeColor( context, nvgRGBA( borderColor.r, borderColor.g, borderColor.b, borderColor.a) );
nvgStrokeWidth( context, border );
nvgStroke( context );
nvgRestore( context );
nvgRestore( context );
}
void Renderer2D::drawText( const attributes_2d& attributes,Font2D font, const char* text, const float32_t& fontSize,
const color_argb& color, const float32_t& blur, const float32_t& spacing,
const float32_t& lineHeight, const TextAlignment& alignment )
{
Context2D* context = _context2D;
nvgSave( context );
nvgBeginPath( context );
nvgRotate( context, attributes.rotation );
nvgFontSize( context, fontSize * attributes.scale );
nvgFontBlur( context, blur );
nvgTextLetterSpacing(context, spacing);
nvgTextLineHeight(context, lineHeight);
nvgTextAlign(context, alignment.value );
nvgFontFaceId(context, font);
nvgFillColor( context, nvgRGBA( color.r, color.g, color.b, color.a) );
nvgFill(context);
nvgText(context, attributes.position[0], attributes.position[1], text, NULL);
nvgRestore( context );
}
void renderDemo(struct NVGcontext* vg, float mx, float my, float width, float height,
float t, int blowup, struct DemoData* data)
{
float x,y,popy;
drawEyes(vg, width - 250, 50, 150, 100, mx, my, t);
drawParagraph(vg, width - 450, 50, 150, 100, mx, my);
drawGraph(vg, 0, height/2, width, height/2, t);
drawColorwheel(vg, width - 300, height - 300, 250.0f, 250.0f, t);
// Line joints
drawLines(vg, 50, height-50, 600, 50, t);
// Line caps
drawWidths(vg, 10, 50, 30);
// Line caps
drawCaps(vg, 10, 300, 30);
nvgSave(vg);
if (blowup) {
nvgRotate(vg, sinf(t*0.3f)*5.0f/180.0f*NVG_PI);
nvgScale(vg, 2.0f, 2.0f);
}
// Widgets
drawWindow(vg, "Widgets `n Stuff", 50, 50, 300, 400);
x = 60; y = 95;
drawSearchBox(vg, "Search", x,y,280,25);
y += 40;
drawDropDown(vg, "Effects", x,y,280,28);
popy = y + 14;
y += 45;
// Form
drawLabel(vg, "Login", x,y, 280,20);
y += 25;
drawEditBox(vg, "Email", x,y, 280,28);
y += 35;
drawEditBox(vg, "Password", x,y, 280,28);
y += 38;
drawCheckBox(vg, "Remember me", x,y, 140,28);
drawButton(vg, ICON_LOGIN, "Sign in", x+138, y, 140, 28, nvgRGBA(0,96,128,255));
y += 45;
// Slider
drawLabel(vg, "Diameter", x,y, 280,20);
y += 25;
drawEditBoxNum(vg, "123.00", "px", x+180,y, 100,28);
drawSlider(vg, 0.4f, x,y, 170,28);
y += 55;
drawButton(vg, ICON_TRASH, "Delete", x, y, 160, 28, nvgRGBA(128,16,8,255));
drawButton(vg, 0, "Cancel", x+170, y, 110, 28, nvgRGBA(0,0,0,0));
// Thumbnails box
drawThumbnails(vg, 365, popy-30, 160, 300, data->images, 12, t);
nvgRestore(vg);
}
void Renderer2D::drawPath( const attributes_2d& attributes, const float32_t* path, const uint32_t& pathSize,
const float32_t& border, const color_argb& color, const color_argb& borderColor,
const Image2D& image, const float32_t& image_alpha, const float32_t& image_pos_x,
const float32_t& image_pos_y, const float32_t& image_width, const float32_t& image_height,
const float32_t& image_rotation )
{
Context2D* context = _context2D;
if( pathSize < 2 || pathSize % 2 != 0 )
return;
nvgSave( context );
nvgBeginPath( context );
nvgTranslate( context, attributes.position[0], attributes.position[1] );
nvgSave( context );
nvgRotate( context, attributes.rotation );
nvgMoveTo( context, path[0], path[1]);
for( uint32_t i=2; i<pathSize; i+=2 )
{
nvgLineTo( context, path[i] * attributes.scale, path[i+1] * attributes.scale);
}
nvgClosePath( context );
if( image != 0 )
{
NVGpaint paint = nvgImagePattern( context, image_pos_x-image_width/2,
image_pos_y-image_height/2, image_width, image_height, image_rotation, image, image_alpha );
nvgFillPaint( context, paint);
}
else
{
nvgFillColor( context, nvgRGBA( color.r, color.g, color.b, color.a) );
}
nvgFill(context);
nvgStrokeColor( context, nvgRGBA( borderColor.r, borderColor.g, borderColor.b, borderColor.a) );
nvgStrokeWidth( context, border );
nvgStroke( context );
nvgRestore( context );
nvgRestore( context );
}
void Cursor::draw(AlloyContext* context) const {
pixel2 cursor = context->cursorPosition;
if (fontSize > 0.0f && context->hasFocus && cursor.x >= 0 && cursor.y >= 0
&& cursor.x < context->getScreenWidth() && cursor.y < context->getScreenHeight()) {
NVGcontext* nvg = context->nvgContext;
nvgTextAlign(nvg, align);
nvgSave(nvg);
nvgFontFaceId(nvg, context->getFontHandle(fontType));
nvgFontSize(nvg, fontSize);
nvgFillColor(nvg, Color(255, 255, 255));
nvgTranslate(nvg, cursor.x+nudge.x, cursor.y+nudge.y);
nvgRotate(nvg, angle);
const float shift = 1.0f;
const char* txt = codeString.c_str();
nvgFillColor(nvg, Color(0, 0, 0));
nvgText(nvg, +shift, 0, txt, nullptr);
nvgText(nvg, -shift, 0, txt, nullptr);
nvgText(nvg, 0, +shift, txt, nullptr);
nvgText(nvg, 0, -shift, txt, nullptr);
nvgFillColor(nvg, Color(255, 255, 255));
nvgText(nvg, 0, 0, txt, nullptr);
nvgRestore(nvg);
}
}
void NanoVG::rotate( float angle )
{
nvgRotate( m_context(), angle );
}
JNIEXPORT void JNICALL Java_org_lwjgl_nanovg_NanoVG_nnvgRotate(JNIEnv *__env, jclass clazz, jlong ctxAddress, jfloat angle) {
NVGcontext *ctx = (NVGcontext *)(intptr_t)ctxAddress;
UNUSED_PARAMS(__env, clazz)
nvgRotate(ctx, angle);
}
void GraphPane::draw(AlloyContext* context) {
Region::draw(context);
box2px rbounds = getBounds();
NVGcontext* nvg = context->nvgContext;
box2px gbounds = rbounds;
const float LARGE_TEXT = 18.0f;
const float MEDIUM_TEXT = 16.0f;
const float SMALL_TEXT = 12.0f;
float2 gpos(-1, -1);
gbounds.position = pixel2(rbounds.position.x + GRAPH_PADDING,
rbounds.position.y + GRAPH_PADDING);
gbounds.dimensions = pixel2(rbounds.dimensions.x - GRAPH_PADDING * 2,
rbounds.dimensions.y - GRAPH_PADDING * 2);
if (graphBounds.dimensions.x < 0 || graphBounds.dimensions.y < 0) {
updateGraphBounds();
}
nvgBeginPath(nvg);
nvgRoundedRect(nvg, gbounds.position.x - 2, gbounds.position.y - 2,
gbounds.dimensions.x + 4, gbounds.dimensions.y + 4,
context->theme.CORNER_RADIUS);
nvgFillColor(nvg, context->theme.LIGHTEST);
nvgFill(nvg);
//Draw vertical line for x=0
if (graphBounds.position.x < 0
&& graphBounds.position.x + graphBounds.dimensions.x > 0) {
float xpos = -graphBounds.position.x / graphBounds.dimensions.x;
nvgBeginPath(nvg);
nvgMoveTo(nvg, xpos * gbounds.dimensions.x + gbounds.position.x,
gbounds.position.y);
nvgLineTo(nvg, xpos * gbounds.dimensions.x + gbounds.position.x,
gbounds.position.y + gbounds.dimensions.y);
nvgStrokeWidth(nvg, 2.0f);
nvgStrokeColor(nvg, context->theme.DARK.toSemiTransparent(0.75f));
nvgStroke(nvg);
}
//Draw horizontal line for y=0
if (graphBounds.position.y < 0
&& graphBounds.position.y + graphBounds.dimensions.y > 0) {
float ypos = -graphBounds.position.y / graphBounds.dimensions.y;
nvgBeginPath(nvg);
nvgMoveTo(nvg, gbounds.position.x,
ypos * gbounds.dimensions.y + gbounds.position.y);
nvgLineTo(nvg, gbounds.position.x + gbounds.dimensions.x,
ypos * gbounds.dimensions.y + gbounds.position.y);
nvgStrokeWidth(nvg, 2.0f);
nvgStrokeColor(nvg, context->theme.DARK.toSemiTransparent(0.75f));
nvgStroke(nvg);
}
if (gbounds.contains(cursorPosition)) {
context->setCursor(&Cursor::CrossHairs);
gpos = (cursorPosition - gbounds.position) / gbounds.dimensions;
gpos.y = 1 - gpos.y;
gpos = gpos * graphBounds.dimensions + graphBounds.position;
nvgBeginPath(nvg);
nvgMoveTo(nvg, cursorPosition.x, gbounds.position.y);
nvgLineTo(nvg, cursorPosition.x,
gbounds.position.y + gbounds.dimensions.y);
nvgStrokeWidth(nvg, 1.0f);
nvgStrokeColor(nvg, context->theme.DARK.toSemiTransparent(0.25f));
nvgStroke(nvg);
nvgBeginPath(nvg);
nvgMoveTo(nvg, gbounds.position.x, cursorPosition.y);
nvgLineTo(nvg, gbounds.position.x + gbounds.dimensions.x,
cursorPosition.y);
nvgStrokeWidth(nvg, 1.0f);
nvgStrokeColor(nvg, context->theme.DARK.toSemiTransparent(0.25f));
nvgStroke(nvg);
}
for (GraphDataPtr& curve : curves) {
std::vector<float2> points = curve->points;
if (points.size() > 1 && graphBounds.dimensions.x > 0.0f
&& graphBounds.dimensions.y > 0.0f) {
NVGcontext* nvg = context->nvgContext;
float2 last = points[0];
last = (last - graphBounds.position) / graphBounds.dimensions;
last.y = 1.0f - last.y;
last = last * gbounds.dimensions + gbounds.position;
nvgBeginPath(nvg);
nvgMoveTo(nvg, last.x, last.y);
for (int i = 1; i < (int)points.size(); i++) {
float2 pt = points[i];
pt = (pt - graphBounds.position) / graphBounds.dimensions;
pt.y = 1.0f - pt.y;
pt = pt * gbounds.dimensions + gbounds.position;
nvgLineTo(nvg, pt.x, pt.y);
last = pt;
}
nvgStrokeWidth(nvg, 2.0f);
nvgStrokeColor(nvg, curve->color);
nvgStroke(nvg);
}
}
nvgFontFaceId(nvg, context->getFontHandle(FontType::Bold));
nvgFontSize(nvg, LARGE_TEXT);
nvgTextAlign(nvg, NVG_ALIGN_CENTER | NVG_ALIGN_TOP);
drawText(nvg, rbounds.position + float2(rbounds.dimensions.x / 2, 2.0f),
name, FontStyle::Outline, context->theme.LIGHTEST,
context->theme.DARK);
nvgFontSize(nvg, MEDIUM_TEXT);
nvgFontFaceId(nvg, context->getFontHandle(FontType::Bold));
nvgTextAlign(nvg, NVG_ALIGN_CENTER | NVG_ALIGN_BOTTOM);
drawText(nvg,
rbounds.position
+ float2(rbounds.dimensions.x / 2,
rbounds.dimensions.y - 4.0f), xAxisLabel,
FontStyle::Outline, context->theme.LIGHTEST, context->theme.DARK);
nvgTextAlign(nvg, NVG_ALIGN_CENTER | NVG_ALIGN_TOP);
nvgSave(nvg);
pixel2 center = rbounds.position
+ float2(2.0f, rbounds.dimensions.y * 0.5f);
nvgTranslate(nvg, center.x, center.y);
nvgRotate(nvg, -ALY_PI * 0.5f);
drawText(nvg, pixel2(0, 2), yAxisLabel, FontStyle::Outline,
context->theme.LIGHTEST, context->theme.DARK);
nvgRestore(nvg);
nvgFontSize(nvg, SMALL_TEXT);
nvgTextAlign(nvg, NVG_ALIGN_RIGHT | NVG_ALIGN_TOP);
drawText(nvg, rbounds.position + float2(GRAPH_PADDING, GRAPH_PADDING),
MakeString() << std::setprecision(2)
<< (graphBounds.position.y + graphBounds.dimensions.y),
FontStyle::Outline, context->theme.LIGHTER, context->theme.DARK);
nvgTextAlign(nvg, NVG_ALIGN_RIGHT | NVG_ALIGN_BOTTOM);
drawText(nvg,
rbounds.position
+ float2(GRAPH_PADDING,
rbounds.dimensions.y - GRAPH_PADDING),
MakeString() << std::setprecision(2) << graphBounds.position.y,
FontStyle::Outline, context->theme.LIGHTER, context->theme.DARK);
nvgTextAlign(nvg, NVG_ALIGN_RIGHT | NVG_ALIGN_TOP);
drawText(nvg,
rbounds.position
+ float2(rbounds.dimensions.x - GRAPH_PADDING,
rbounds.dimensions.y - GRAPH_PADDING + 2),
MakeString() << std::setprecision(2)
<< (graphBounds.position.x + graphBounds.dimensions.x),
FontStyle::Outline, context->theme.LIGHTER, context->theme.DARK);
nvgTextAlign(nvg, NVG_ALIGN_LEFT | NVG_ALIGN_TOP);
drawText(nvg,
rbounds.position
+ float2(GRAPH_PADDING,
rbounds.dimensions.y - GRAPH_PADDING + 2),
MakeString() << std::setprecision(2) << graphBounds.position.x,
FontStyle::Outline, context->theme.LIGHTER, context->theme.DARK);
if (cursorPosition.x >= 0) {
float minDist = 1E30f;
float bestY = 0;
GraphDataPtr closestCurve;
for (GraphDataPtr& curve : curves) {
float y = curve->interpolate(gpos.x);
if (y != GraphData::NO_INTERSECT) {
if (std::abs(y - gpos.y) < minDist) {
minDist = std::abs(y - gpos.y);
bestY = y;
closestCurve = curve;
}
}
}
if (closestCurve.get() != nullptr) {
nvgBeginPath(nvg);
nvgStrokeWidth(nvg, 2.0f);
nvgFillColor(nvg, closestCurve->color);
nvgStrokeColor(nvg, context->theme.LIGHTER);
float2 pt(gpos.x, bestY);
pt = (pt - graphBounds.position) / graphBounds.dimensions;
pt.y = 1.0f - pt.y;
pt = pt * gbounds.dimensions + gbounds.position;
nvgCircle(nvg, pt.x, pt.y, 4);
nvgFill(nvg);
nvgStroke(nvg);
nvgBeginPath(nvg);
nvgFillColor(nvg, context->theme.DARK);
nvgCircle(nvg, cursorPosition.x, cursorPosition.y, 2);
nvgFill(nvg);
nvgTextAlign(nvg, NVG_ALIGN_RIGHT | NVG_ALIGN_MIDDLE);
nvgFontSize(nvg, MEDIUM_TEXT);
drawText(nvg, float2(pt.x - 8, pt.y), closestCurve->name,
FontStyle::Outline, context->theme.LIGHTEST,
context->theme.DARK);
nvgTextAlign(nvg, NVG_ALIGN_LEFT | NVG_ALIGN_MIDDLE);
drawText(nvg, float2(pt.x + 8, pt.y),
MakeString() << "(" << std::setprecision(2) << gpos.x
<< ", " << std::setprecision(2) << bestY << ")",
FontStyle::Outline, context->theme.LIGHTEST,
context->theme.DARK);
}
else {
nvgBeginPath(nvg);
nvgFillColor(nvg, context->theme.DARK);
nvgCircle(nvg, cursorPosition.x, cursorPosition.y, 2);
nvgFill(nvg);
}
}
}
void NVGRenderer::rotate(float rad)
{
nvgRotate(m_context, rad);
}
void ColorWheel::draw(NVGcontext *ctx) {
Widget::draw(ctx);
if (!mVisible)
return;
float x = mPos.x(),
y = mPos.y(),
w = mSize.x(),
h = mSize.y();
NVGcontext* vg = ctx;
int i;
float r0, r1, ax,ay, bx,by, cx,cy, aeps, r;
float hue = mHue;
NVGpaint paint;
nvgSave(vg);
cx = x + w*0.5f;
cy = y + h*0.5f;
r1 = (w < h ? w : h) * 0.5f - 5.0f;
r0 = r1 * .75f;
aeps = 0.5f / r1; // half a pixel arc length in radians (2pi cancels out).
for (i = 0; i < 6; i++) {
float a0 = (float)i / 6.0f * NVG_PI * 2.0f - aeps;
float a1 = (float)(i+1.0f) / 6.0f * NVG_PI * 2.0f + aeps;
nvgBeginPath(vg);
nvgArc(vg, cx,cy, r0, a0, a1, NVG_CW);
nvgArc(vg, cx,cy, r1, a1, a0, NVG_CCW);
nvgClosePath(vg);
ax = cx + cosf(a0) * (r0+r1)*0.5f;
ay = cy + sinf(a0) * (r0+r1)*0.5f;
bx = cx + cosf(a1) * (r0+r1)*0.5f;
by = cy + sinf(a1) * (r0+r1)*0.5f;
paint = nvgLinearGradient(vg, ax, ay, bx, by,
nvgHSLA(a0 / (NVG_PI * 2), 1.0f, 0.55f, 255),
nvgHSLA(a1 / (NVG_PI * 2), 1.0f, 0.55f, 255));
nvgFillPaint(vg, paint);
nvgFill(vg);
}
nvgBeginPath(vg);
nvgCircle(vg, cx,cy, r0-0.5f);
nvgCircle(vg, cx,cy, r1+0.5f);
nvgStrokeColor(vg, nvgRGBA(0,0,0,64));
nvgStrokeWidth(vg, 1.0f);
nvgStroke(vg);
// Selector
nvgSave(vg);
nvgTranslate(vg, cx,cy);
nvgRotate(vg, hue*NVG_PI*2);
// Marker on
float u = std::max(r1/50, 1.5f);
u = std::min(u, 4.f);
nvgStrokeWidth(vg, u);
nvgBeginPath(vg);
nvgRect(vg, r0-1,-2*u,r1-r0+2,4*u);
nvgStrokeColor(vg, nvgRGBA(255,255,255,192));
nvgStroke(vg);
paint = nvgBoxGradient(vg, r0-3,-5,r1-r0+6,10, 2,4, nvgRGBA(0,0,0,128), nvgRGBA(0,0,0,0));
nvgBeginPath(vg);
nvgRect(vg, r0-2-10,-4-10,r1-r0+4+20,8+20);
nvgRect(vg, r0-2,-4,r1-r0+4,8);
nvgPathWinding(vg, NVG_HOLE);
nvgFillPaint(vg, paint);
nvgFill(vg);
// Center triangle
r = r0 - 6;
ax = cosf(120.0f/180.0f*NVG_PI) * r;
ay = sinf(120.0f/180.0f*NVG_PI) * r;
bx = cosf(-120.0f/180.0f*NVG_PI) * r;
by = sinf(-120.0f/180.0f*NVG_PI) * r;
nvgBeginPath(vg);
nvgMoveTo(vg, r,0);
nvgLineTo(vg, ax, ay);
nvgLineTo(vg, bx, by);
nvgClosePath(vg);
paint = nvgLinearGradient(vg, r, 0, ax, ay, nvgHSLA(hue, 1.0f, 0.5f, 255),
nvgRGBA(255, 255, 255, 255));
nvgFillPaint(vg, paint);
nvgFill(vg);
paint = nvgLinearGradient(vg, (r + ax) * 0.5f, (0 + ay) * 0.5f, bx, by,
nvgRGBA(0, 0, 0, 0), nvgRGBA(0, 0, 0, 255));
nvgFillPaint(vg, paint);
nvgFill(vg);
nvgStrokeColor(vg, nvgRGBA(0, 0, 0, 64));
nvgStroke(vg);
// Select circle on triangle
float sx = r*(1 - mWhite - mBlack) + ax*mWhite + bx*mBlack;
float sy = ay*mWhite + by*mBlack;
nvgStrokeWidth(vg, u);
nvgBeginPath(vg);
nvgCircle(vg, sx,sy,2*u);
nvgStrokeColor(vg, nvgRGBA(255,255,255,192));
nvgStroke(vg);
nvgRestore(vg);
nvgRestore(vg);
}
void drawColorwheel(struct NVGcontext* vg, float x, float y, float w, float h, float t)
{
int i;
float r0, r1, ax,ay, bx,by, cx,cy, aeps, r;
float hue = sinf(t * 0.12f);
struct NVGpaint paint;
nvgSave(vg);
/* nvgBeginPath(vg);
nvgRect(vg, x,y,w,h);
nvgFillColor(vg, nvgRGBA(255,0,0,128) );
nvgFill(vg);*/
cx = x + w*0.5f;
cy = y + h*0.5f;
r1 = (w < h ? w : h) * 0.5f - 5.0f;
r0 = r1 - 20.0f;
aeps = 0.5f / r1; // half a pixel arc length in radians (2pi cancels out).
for (i = 0; i < 6; i++)
{
float a0 = (float)i / 6.0f * NVG_PI * 2.0f - aeps;
float a1 = (float)(i+1.0f) / 6.0f * NVG_PI * 2.0f + aeps;
nvgBeginPath(vg);
nvgArc(vg, cx,cy, r0, a0, a1, NVG_CW);
nvgArc(vg, cx,cy, r1, a1, a0, NVG_CCW);
nvgClosePath(vg);
ax = cx + cosf(a0) * (r0+r1)*0.5f;
ay = cy + sinf(a0) * (r0+r1)*0.5f;
bx = cx + cosf(a1) * (r0+r1)*0.5f;
by = cy + sinf(a1) * (r0+r1)*0.5f;
paint = nvgLinearGradient(vg, ax,ay, bx,by, nvgHSLA(a0/(NVG_PI*2),1.0f,0.55f,255), nvgHSLA(a1/(NVG_PI*2),1.0f,0.55f,255) );
nvgFillPaint(vg, paint);
nvgFill(vg);
}
nvgBeginPath(vg);
nvgCircle(vg, cx,cy, r0-0.5f);
nvgCircle(vg, cx,cy, r1+0.5f);
nvgStrokeColor(vg, nvgRGBA(0,0,0,64) );
nvgStrokeWidth(vg, 1.0f);
nvgStroke(vg);
// Selector
nvgSave(vg);
nvgTranslate(vg, cx,cy);
nvgRotate(vg, hue*NVG_PI*2);
// Marker on
nvgStrokeWidth(vg, 2.0f);
nvgBeginPath(vg);
nvgRect(vg, r0-1,-3,r1-r0+2,6);
nvgStrokeColor(vg, nvgRGBA(255,255,255,192) );
nvgStroke(vg);
paint = nvgBoxGradient(vg, r0-3,-5,r1-r0+6,10, 2,4, nvgRGBA(0,0,0,128), nvgRGBA(0,0,0,0) );
nvgBeginPath(vg);
nvgRect(vg, r0-2-10,-4-10,r1-r0+4+20,8+20);
nvgRect(vg, r0-2,-4,r1-r0+4,8);
nvgPathWinding(vg, NVG_HOLE);
nvgFillPaint(vg, paint);
nvgFill(vg);
// Center triangle
r = r0 - 6;
ax = cosf(120.0f/180.0f*NVG_PI) * r;
ay = sinf(120.0f/180.0f*NVG_PI) * r;
bx = cosf(-120.0f/180.0f*NVG_PI) * r;
by = sinf(-120.0f/180.0f*NVG_PI) * r;
nvgBeginPath(vg);
nvgMoveTo(vg, r,0);
nvgLineTo(vg, ax,ay);
nvgLineTo(vg, bx,by);
nvgClosePath(vg);
paint = nvgLinearGradient(vg, r,0, ax,ay, nvgHSLA(hue,1.0f,0.5f,255), nvgRGBA(255,255,255,255) );
nvgFillPaint(vg, paint);
nvgFill(vg);
paint = nvgLinearGradient(vg, (r+ax)*0.5f,(0+ay)*0.5f, bx,by, nvgRGBA(0,0,0,0), nvgRGBA(0,0,0,255) );
nvgFillPaint(vg, paint);
nvgFill(vg);
nvgStrokeColor(vg, nvgRGBA(0,0,0,64) );
nvgStroke(vg);
// Select circle on triangle
ax = cosf(120.0f/180.0f*NVG_PI) * r*0.3f;
ay = sinf(120.0f/180.0f*NVG_PI) * r*0.4f;
nvgStrokeWidth(vg, 2.0f);
nvgBeginPath(vg);
nvgCircle(vg, ax,ay,5);
nvgStrokeColor(vg, nvgRGBA(255,255,255,192) );
nvgStroke(vg);
paint = nvgRadialGradient(vg, ax,ay, 7,9, nvgRGBA(0,0,0,64), nvgRGBA(0,0,0,0) );
nvgBeginPath(vg);
nvgRect(vg, ax-20,ay-20,40,40);
nvgCircle(vg, ax,ay,7);
nvgPathWinding(vg, NVG_HOLE);
nvgFillPaint(vg, paint);
nvgFill(vg);
nvgRestore(vg);
nvgRestore(vg);
}
void QNanoPainter::rotate(float angle)
{
nvgRotate(nvgCtx(), angle);
}
void drawClock(NVGcontext* vg, int screenWidth, int screenHeight) {
int clockRadius = (fmin(screenWidth, screenHeight) - 10) / 2;
NVGcolor baseColor = nvgRGB(145, 100, 0);
NVGcolor lighterColor = nvgRGB(200, 140, 0);
NVGcolor dblLighterColor = nvgRGB(255, 177, 0);
NVGcolor lightestColor = nvgRGB(255, 195, 60);
int widthLight = fmax(clockRadius * 0.0075, 1);
int widthMedium = fmax(clockRadius * 0.013, 1);
int widthHeavy = fmax(clockRadius * 0.025, 1);
time_t t = time(NULL);
struct tm localTime = *localtime(&t);
nvgTranslate(vg, screenWidth / 2, screenHeight / 2);
nvgStrokeColor(vg, baseColor);
// Frame
nvgSave(vg);
nvgBeginPath(vg);
nvgCircle(vg, 0, 0, clockRadius);
nvgStrokeWidth(vg, widthMedium);
nvgStroke(vg);
nvgBeginPath(vg);
nvgStrokeColor(vg, lighterColor);
for (int i = 0; i < 12; i++) {
nvgMoveTo(vg, 0, -clockRadius * 0.98);
nvgLineTo(vg, 0, -clockRadius * 0.90);
for (int j = 0; j < 5; j++) {
nvgRotate(vg, 2 * M_PI / 12 / 5);
nvgMoveTo(vg, 0, -clockRadius * 0.98);
nvgLineTo(vg, 0, -clockRadius * 0.95);
}
}
nvgStroke(vg);
nvgBeginPath(vg);
nvgFontFace(vg, "bold");
int digitsRadius = clockRadius * 0.79;
int digitLargeSize = clockRadius * 0.29;
int digitSmallSize = clockRadius * 0.2;
int clockTitleSize = clockRadius * 0.06;
nvgFillColor(vg, dblLighterColor);
char* nineTitle = "9";
nvgFontSize(vg, digitLargeSize);
nvgTranslate(vg, -digitsRadius, 0);
nvgRotate(vg, - 3 * 2 * M_PI / 12);
//nvgTranslate(vg, 0, -digitsRadius);
drawTextCenter(vg, nineTitle, 0, 0);
nvgFill(vg);
nvgFillColor(vg, lighterColor);
char* tenTitle = "10";
nvgFontSize(vg, digitSmallSize);
nvgTranslate(vg, 0, digitsRadius);
nvgRotate(vg, 2 * M_PI / 12);
nvgTranslate(vg, 0, -digitsRadius);
drawTextCenter(vg, tenTitle, 0, 0);
nvgFill(vg);
char* elevenTitle = "11";
nvgTranslate(vg, 0, digitsRadius);
nvgRotate(vg, 2 * M_PI / 12);
nvgTranslate(vg, 0, -digitsRadius);
drawTextCenter(vg, elevenTitle, 0, 0);
nvgFill(vg);
nvgFillColor(vg, dblLighterColor);
char* twelveTitle = "12";
nvgFontSize(vg, digitLargeSize);
nvgTranslate(vg, 0, digitsRadius);
nvgRotate(vg, 2 * M_PI / 12);
nvgTranslate(vg, 0, -digitsRadius);
drawTextCenter(vg, twelveTitle, 0, 0);
nvgFill(vg);
nvgFillColor(vg, lighterColor);
char* oneTitle = "1";
nvgFontSize(vg, digitSmallSize);
nvgTranslate(vg, 0, digitsRadius);
nvgRotate(vg, 2 * M_PI / 12);
nvgTranslate(vg, 0, -digitsRadius);
drawTextCenter(vg, oneTitle, 0, 0);
nvgFill(vg);
char* twoTitle = "2";
nvgTranslate(vg, 0, digitsRadius);
nvgRotate(vg, 2 * M_PI / 12);
nvgTranslate(vg, 0, -digitsRadius);
drawTextCenter(vg, twoTitle, 0, 0);
nvgFill(vg);
nvgFillColor(vg, dblLighterColor);
char* threeTitle = "3";
nvgFontSize(vg, digitLargeSize);
nvgTranslate(vg, 0, digitsRadius);
nvgRotate(vg, 2 * M_PI / 12);
nvgTranslate(vg, 0, -digitsRadius);
drawTextCenter(vg, threeTitle, 0, 0);
nvgFill(vg);
nvgFillColor(vg, lighterColor);
char* fourTitle = "4";
nvgFontSize(vg, digitSmallSize);
nvgTranslate(vg, 0, digitsRadius);
nvgRotate(vg, 2 * M_PI / 12 - M_PI);
nvgTranslate(vg, 0, digitsRadius);
drawTextCenter(vg, fourTitle, 0, 0);
nvgFill(vg);
char* fiveTitle = "5";
nvgTranslate(vg, 0, -digitsRadius);
nvgRotate(vg, 2 * M_PI / 12);
nvgTranslate(vg, 0, digitsRadius);
drawTextCenter(vg, fiveTitle, 0, 0);
nvgFill(vg);
nvgFillColor(vg, dblLighterColor);
char* sixTitle = "6";
nvgFontSize(vg, digitLargeSize);
nvgTranslate(vg, 0, -digitsRadius);
nvgRotate(vg, 2 * M_PI / 12);
nvgTranslate(vg, 0, digitsRadius);
drawTextCenter(vg, sixTitle, 0, 0);
nvgFill(vg);
nvgFillColor(vg, lighterColor);
char* sevenTitle = "7";
nvgFontSize(vg, digitSmallSize);
nvgTranslate(vg, 0, -digitsRadius);
nvgRotate(vg, 2 * M_PI / 12);
nvgTranslate(vg, 0, digitsRadius);
drawTextCenter(vg, sevenTitle, 0, 0);
nvgFill(vg);
char* eightTitle = "8";
nvgTranslate(vg, 0, -digitsRadius);
nvgRotate(vg, 2 * M_PI / 12);
nvgTranslate(vg, 0, digitsRadius);
drawTextCenter(vg, eightTitle, 0, 0);
nvgFill(vg);
nvgRestore(vg);
nvgSave(vg);
nvgFontFace(vg, "black");
char* clockTitle = "ALPHA";
nvgFontSize(vg, clockTitleSize);
nvgFillColor(vg, baseColor);
nvgTranslate(vg, 0, clockTitleSize);
nvgTextLetterSpacing(vg, clockTitleSize);
drawTextCenter(vg, clockTitle, 0, -2 * clockTitleSize);
nvgFill(vg);
nvgRestore(vg);
double secAngle = 2 * M_PI / 60 * localTime.tm_sec;
double minAngle = 2 * M_PI / 60 * localTime.tm_min + secAngle / 60;
double hrAngle = 2 * M_PI / 12 * localTime.tm_hour + minAngle / 60;
// Hour hand
nvgStrokeColor(vg, lighterColor);
nvgSave(vg);
nvgRotate(vg, hrAngle);
nvgBeginPath(vg);
nvgMoveTo(vg, 0, clockRadius * 0.02);
nvgLineTo(vg, 0, -clockRadius * 0.5);
nvgStrokeWidth(vg, widthHeavy);
nvgStroke(vg);
nvgRestore(vg);
// Minute hand
nvgStrokeColor(vg, lighterColor);
nvgSave(vg);
nvgRotate(vg, minAngle);
nvgBeginPath(vg);
nvgMoveTo(vg, 0, clockRadius * 0.04);
nvgLineTo(vg, 0, -clockRadius * 0.8);
nvgStrokeWidth(vg, widthMedium);
nvgStroke(vg);
nvgRestore(vg);
// Second hand
nvgStrokeColor(vg, lightestColor);
nvgSave(vg);
nvgRotate(vg, secAngle);
nvgBeginPath(vg);
nvgMoveTo(vg, 0, clockRadius * 0.05);
nvgLineTo(vg, 0, -clockRadius * 0.9);
nvgStrokeWidth(vg, widthLight);
nvgStroke(vg);
nvgRestore(vg);
}
JNIEXPORT void JNICALL Java_firststep_internal_NVG_rotate
(JNIEnv *e, jclass c, jlong ctx, jfloat angle)
{
nvgRotate((NVGcontext*)ctx, angle);
}