void Application::drawUI() {
if (context->dirtyUI) {
context->setCursor(nullptr);
if (uiFrameBuffer->width() != context->screenSize.x || uiFrameBuffer->height() != context->screenSize.y) {
uiFrameBuffer->initialize(context->screenSize.x, context->screenSize.y);
}
uiFrameBuffer->begin();
glViewport(0, 0, uiFrameBuffer->width(),uiFrameBuffer->height());
NVGcontext* nvg = context->nvgContext;
nvgBeginFrame(nvg, uiFrameBuffer->width(), uiFrameBuffer->height(),1.0f);//(float) context->pixelRatio
nvgScissor(nvg, 0, 0, (float)uiFrameBuffer->width(), (float)uiFrameBuffer->height());
rootRegion.draw(context.get());
nvgScissor(nvg, 0, 0, (float)uiFrameBuffer->width(), (float)uiFrameBuffer->height());
Region* onTop = context->getOnTopRegion();
if (onTop != nullptr) {
if (onTop->isVisible())
onTop->draw(context.get());
}
const Cursor* cursor = context->getCursor();
if (!cursor) {
cursor = &Cursor::Normal;
}
nvgEndFrame(nvg);
uiFrameBuffer->end();
context->dirtyUI = false;
}
imageShader->draw(uiFrameBuffer->getTexture(), pixel2(0, 0),pixel2(context->viewSize));
}
void VScrollPanel::draw (NVGcontext * ctx)
{
if (mChildren.empty())
return;
Widget * child = mChildren[0];
mChildPreferredHeight = child->preferredSize (ctx).y();
float scrollh = height() *
std::min (1.0f, height() / (float) mChildPreferredHeight);
nvgSave (ctx);
nvgTranslate (ctx, mPos.x(), mPos.y());
nvgScissor (ctx, 0, 0, mSize.x(), mSize.y());
nvgTranslate (ctx, 0, -mScroll * (mChildPreferredHeight - mSize.y()));
if (child->visible())
child->draw (ctx);
nvgRestore (ctx);
NVGpaint paint = nvgBoxGradient (
ctx, mPos.x() + mSize.x() - 12 + 1, mPos.y() + 4 + 1, 8,
mSize.y() - 8, 3, 4, Color (0, 32), Color (0, 92));
nvgBeginPath (ctx);
nvgRoundedRect (ctx, mPos.x() + mSize.x() - 12, mPos.y() + 4, 8,
mSize.y() - 8, 3);
nvgFillPaint (ctx, paint);
nvgFill (ctx);
paint = nvgBoxGradient (
ctx, mPos.x() + mSize.x() - 12 - 1,
mPos.y() + 4 + (mSize.y() - 8 - scrollh) * mScroll - 1, 8, scrollh,
3, 4, Color (220, 100), Color (128, 100));
nvgBeginPath (ctx);
nvgRoundedRect (ctx, mPos.x() + mSize.x() - 12 + 1,
mPos.x() + 4 + 1 + (mSize.y() - 8 - scrollh) * mScroll, 8 - 2,
scrollh - 2, 2);
nvgFillPaint (ctx, paint);
nvgFill (ctx);
}
virtual void onDraw() override {
if (y() + height > 0) {
if (y() < 0)
nvgScissor(vg, gX(), gY() - y(), width, y() + height);
BaseTrack::drawBase();
drawTrackFrame();
VS_RENDER_CHILDREN();
}
}
static void
draw(NVGcontext *nvg, struct gui_command_queue *queue, int width, int height)
{
const struct gui_command *cmd;
glPushAttrib(GL_ENABLE_BIT|GL_COLOR_BUFFER_BIT);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glEnable(GL_SCISSOR_TEST);
glEnable(GL_TEXTURE_2D);
nvgBeginFrame(nvg, width, height, ((float)width/(float)height));
gui_foreach_command(cmd, queue) {
switch (cmd->type) {
case GUI_COMMAND_NOP: break;
case GUI_COMMAND_SCISSOR: {
const struct gui_command_scissor *s = gui_command(scissor, cmd);
nvgScissor(nvg, s->x, s->y, s->w, s->h);
} break;
case GUI_COMMAND_LINE: {
const struct gui_command_line *l = gui_command(line, cmd);
draw_line(nvg, l->begin.x, l->begin.y, l->end.x, l->end.y, l->color);
} break;
case GUI_COMMAND_RECT: {
const struct gui_command_rect *r = gui_command(rect, cmd);
draw_rect(nvg, r->x, r->y, r->w, r->h, r->rounding, r->color);
} break;
case GUI_COMMAND_CIRCLE: {
const struct gui_command_circle *c = gui_command(circle, cmd);
draw_circle(nvg, c->x, c->y, (float)c->w / 2.0f, c->color);
} break;
case GUI_COMMAND_TRIANGLE: {
const struct gui_command_triangle *t = gui_command(triangle, cmd);
draw_triangle(nvg, t->a.x, t->a.y, t->b.x, t->b.y, t->c.x,
t->c.y, t->color);
} break;
case GUI_COMMAND_TEXT: {
const struct gui_command_text *t = gui_command(text, cmd);
draw_text(nvg, t->x, t->y, t->w, t->h, t->foreground, t->background, t->string, t->length);
} break;
case GUI_COMMAND_IMAGE: {
const struct gui_command_image *i = gui_command(image, cmd);
draw_image(nvg, i->img.handle, i->x, i->y, i->w, i->h, 1);
} break;
case GUI_COMMAND_MAX:
default: break;
}
}
gui_command_queue_clear(queue);
nvgResetScissor(nvg);
nvgEndFrame(nvg);
glPopAttrib();
}
void NanoVG::scissor( float x, float y, float w, float h )
{
nvgScissor( m_context(), x, y, w, h );
}
void NVGRenderer::scissor(float x, float y, float w, float h)
{
nvgScissor(m_context, x, y, w, h);
}
void Window::draw(NVGcontext *ctx) {
int ds = mTheme->mWindowDropShadowSize, cr = mTheme->mWindowCornerRadius;
int hh = mTheme->mWindowHeaderHeight;
/* Draw window */
nvgSave(ctx);
nvgBeginPath(ctx);
nvgRoundedRect(ctx, mPos.x(), mPos.y(), mSize.x(), mSize.y(), cr);
nvgFillColor(ctx, mMouseFocus ? mTheme->mWindowFillFocused
: mTheme->mWindowFillUnfocused);
nvgFill(ctx);
/* Draw a drop shadow */
NVGpaint shadowPaint = nvgBoxGradient(
ctx, mPos.x(), mPos.y(), mSize.x(), mSize.y(), cr*2, ds*2,
mTheme->mDropShadow, mTheme->mTransparent);
nvgBeginPath(ctx);
nvgRect(ctx, mPos.x()-ds,mPos.y()-ds, mSize.x()+2*ds, mSize.y()+2*ds);
nvgRoundedRect(ctx, mPos.x(), mPos.y(), mSize.x(), mSize.y(), cr);
nvgPathWinding(ctx, NVG_HOLE);
nvgFillPaint(ctx, shadowPaint);
nvgFill(ctx);
if (!mTitle.empty()) {
/* Draw header */
NVGpaint headerPaint = nvgLinearGradient(
ctx, mPos.x(), mPos.y(), mPos.x(),
mPos.y() + hh,
mTheme->mWindowHeaderGradientTop,
mTheme->mWindowHeaderGradientBot);
nvgBeginPath(ctx);
nvgRoundedRect(ctx, mPos.x(), mPos.y(), mSize.x(), hh, cr);
nvgFillPaint(ctx, headerPaint);
nvgFill(ctx);
nvgBeginPath(ctx);
nvgRoundedRect(ctx, mPos.x(), mPos.y(), mSize.x(), hh, cr);
nvgStrokeColor(ctx, mTheme->mWindowHeaderSepTop);
nvgScissor(ctx, mPos.x(), mPos.y(), mSize.x(), 0.5f);
nvgStroke(ctx);
nvgResetScissor(ctx);
nvgBeginPath(ctx);
nvgMoveTo(ctx, mPos.x() + 0.5f, mPos.y() + hh - 1.5f);
nvgLineTo(ctx, mPos.x() + mSize.x() - 0.5f, mPos.y() + hh - 1.5);
nvgStrokeColor(ctx, mTheme->mWindowHeaderSepBot);
nvgStroke(ctx);
nvgFontSize(ctx, 18.0f);
nvgFontFace(ctx, "sans-bold");
nvgTextAlign(ctx, NVG_ALIGN_CENTER | NVG_ALIGN_MIDDLE);
nvgFontBlur(ctx, 2);
nvgFillColor(ctx, mTheme->mDropShadow);
nvgText(ctx, mPos.x() + mSize.x() / 2,
mPos.y() + hh / 2, mTitle.c_str(), nullptr);
nvgFontBlur(ctx, 0);
nvgFillColor(ctx, mFocused ? mTheme->mWindowTitleFocused
: mTheme->mWindowTitleUnfocused);
nvgText(ctx, mPos.x() + mSize.x() / 2, mPos.y() + hh / 2 - 1,
mTitle.c_str(), nullptr);
}
nvgRestore(ctx);
Widget::draw(ctx);
}
void drawThumbnails(struct NVGcontext* vg, float x, float y, float w, float h, const int* images, int nimages, float t)
{
float cornerRadius = 3.0f;
struct NVGpaint shadowPaint, imgPaint, fadePaint;
float ix,iy,iw,ih;
float thumb = 60.0f;
float arry = 30.5f;
int imgw, imgh;
float stackh = (nimages/2) * (thumb+10) + 10;
int i;
float u = (1+cosf(t*0.5f) )*0.5f;
float scrollh;
nvgSave(vg);
// nvgClearState(vg);
// Drop shadow
shadowPaint = nvgBoxGradient(vg, x,y+4, w,h, cornerRadius*2, 20, nvgRGBA(0,0,0,128), nvgRGBA(0,0,0,0) );
nvgBeginPath(vg);
nvgRect(vg, x-10,y-10, w+20,h+30);
nvgRoundedRect(vg, x,y, w,h, cornerRadius);
nvgPathWinding(vg, NVG_HOLE);
nvgFillPaint(vg, shadowPaint);
nvgFill(vg);
// Window
nvgBeginPath(vg);
nvgRoundedRect(vg, x,y, w,h, cornerRadius);
nvgMoveTo(vg, x-10,y+arry);
nvgLineTo(vg, x+1,y+arry-11);
nvgLineTo(vg, x+1,y+arry+11);
nvgFillColor(vg, nvgRGBA(200,200,200,255) );
nvgFill(vg);
nvgSave(vg);
nvgScissor(vg, x,y,w,h);
nvgTranslate(vg, 0, -(stackh - h)*u);
for (i = 0; i < nimages; i++) {
float tx, ty;
tx = x+10;
ty = y+10;
tx += (i%2) * (thumb+10);
ty += (i/2) * (thumb+10);
nvgImageSize(vg, images[i], &imgw, &imgh);
if (imgw < imgh) {
iw = thumb;
ih = iw * (float)imgh/(float)imgw;
ix = 0;
iy = -(ih-thumb)*0.5f;
} else {
ih = thumb;
iw = ih * (float)imgw/(float)imgh;
ix = -(iw-thumb)*0.5f;
iy = 0;
}
imgPaint = nvgImagePattern(vg, tx+ix, ty+iy, iw,ih, 0.0f/180.0f*NVG_PI, images[i], 0);
nvgBeginPath(vg);
nvgRoundedRect(vg, tx,ty, thumb,thumb, 5);
nvgFillPaint(vg, imgPaint);
nvgFill(vg);
shadowPaint = nvgBoxGradient(vg, tx-1,ty, thumb+2,thumb+2, 5, 3, nvgRGBA(0,0,0,128), nvgRGBA(0,0,0,0) );
nvgBeginPath(vg);
nvgRect(vg, tx-5,ty-5, thumb+10,thumb+10);
nvgRoundedRect(vg, tx,ty, thumb,thumb, 6);
nvgPathWinding(vg, NVG_HOLE);
nvgFillPaint(vg, shadowPaint);
nvgFill(vg);
nvgBeginPath(vg);
nvgRoundedRect(vg, tx+0.5f,ty+0.5f, thumb-1,thumb-1, 4-0.5f);
nvgStrokeWidth(vg,1.0f);
nvgStrokeColor(vg, nvgRGBA(255,255,255,192) );
nvgStroke(vg);
}
nvgRestore(vg);
// Hide fades
fadePaint = nvgLinearGradient(vg, x,y,x,y+6, nvgRGBA(200,200,200,255), nvgRGBA(200,200,200,0) );
nvgBeginPath(vg);
nvgRect(vg, x+4,y,w-8,6);
nvgFillPaint(vg, fadePaint);
nvgFill(vg);
fadePaint = nvgLinearGradient(vg, x,y+h,x,y+h-6, nvgRGBA(200,200,200,255), nvgRGBA(200,200,200,0) );
nvgBeginPath(vg);
nvgRect(vg, x+4,y+h-6,w-8,6);
nvgFillPaint(vg, fadePaint);
nvgFill(vg);
// Scroll bar
shadowPaint = nvgBoxGradient(vg, x+w-12+1,y+4+1, 8,h-8, 3,4, nvgRGBA(0,0,0,32), nvgRGBA(0,0,0,92) );
nvgBeginPath(vg);
nvgRoundedRect(vg, x+w-12,y+4, 8,h-8, 3);
nvgFillPaint(vg, shadowPaint);
// nvgFillColor(vg, nvgRGBA(255,0,0,128) );
nvgFill(vg);
scrollh = (h/stackh) * (h-8);
shadowPaint = nvgBoxGradient(vg, x+w-12-1,y+4+(h-8-scrollh)*u-1, 8,scrollh, 3,4, nvgRGBA(220,220,220,255), nvgRGBA(128,128,128,255) );
nvgBeginPath(vg);
nvgRoundedRect(vg, x+w-12+1,y+4+1 + (h-8-scrollh)*u, 8-2,scrollh-2, 2);
nvgFillPaint(vg, shadowPaint);
// nvgFillColor(vg, nvgRGBA(0,0,0,128) );
nvgFill(vg);
nvgRestore(vg);
}
void QNanoPainter::setClipRect(float x, float y, float width, float height)
{
_checkAlignPixelsAdjust(&x, &y);
_checkAlignPixels(&width, &height);
nvgScissor(nvgCtx(), x, y, width, height);
}
void TextBox::draw(NVGcontext* ctx) {
Widget::draw(ctx);
NVGpaint bg = nvgBoxGradient(ctx,
mPos.x() + 1, mPos.y() + 1 + 1.0f, mSize.x() - 2, mSize.y() - 2,
3, 4, Color(255, 32), Color(32, 32));
NVGpaint fg1 = nvgBoxGradient(ctx,
mPos.x() + 1, mPos.y() + 1 + 1.0f, mSize.x() - 2, mSize.y() - 2,
3, 4, Color(150, 32), Color(32, 32));
NVGpaint fg2 = nvgBoxGradient(ctx,
mPos.x() + 1, mPos.y() + 1 + 1.0f, mSize.x() - 2, mSize.y() - 2,
3, 4, nvgRGBA(255, 0, 0, 100), nvgRGBA(255, 0, 0, 50));
nvgBeginPath(ctx);
nvgRoundedRect(ctx, mPos.x() + 1, mPos.y() + 1 + 1.0f, mSize.x() - 2,
mSize.y() - 2, 3);
if(mEditable && focused())
mValidFormat ? nvgFillPaint(ctx, fg1) : nvgFillPaint(ctx, fg2);
else
nvgFillPaint(ctx, bg);
nvgFill(ctx);
nvgBeginPath(ctx);
nvgRoundedRect(ctx, mPos.x() + 0.5f, mPos.y() + 0.5f, mSize.x() - 1,
mSize.y() - 1, 2.5f);
nvgStrokeColor(ctx, Color(0, 48));
nvgStroke(ctx);
nvgFontSize(ctx, fontSize());
nvgFontFace(ctx, "sans");
Vector2i drawPos(mPos.x(), mPos.y() + mSize.y() * 0.5f + 1);
float xSpacing = mSize.y() * 0.3f;
float unitWidth = 0;
if (mUnitsImage > 0) {
int w, h;
nvgImageSize(ctx, mUnitsImage, &w, &h);
float unitHeight = mSize.y() * 0.4f;
unitWidth = w * unitHeight / h;
NVGpaint imgPaint = nvgImagePattern(
ctx, mPos.x() + mSize.x() - xSpacing - unitWidth,
drawPos.y() - unitHeight * 0.5f, unitWidth, unitHeight, 0,
mUnitsImage, mEnabled ? 0.7f : 0.35f);
nvgBeginPath(ctx);
nvgRect(ctx, mPos.x() + mSize.x() - xSpacing - unitWidth,
drawPos.y() - unitHeight * 0.5f, unitWidth, unitHeight);
nvgFillPaint(ctx, imgPaint);
nvgFill(ctx);
unitWidth += 2;
} else if (!mUnits.empty()) {
unitWidth = nvgTextBounds(ctx, 0, 0, mUnits.c_str(), nullptr, nullptr);
nvgFillColor(ctx, Color(255, mEnabled ? 64 : 32));
nvgTextAlign(ctx, NVG_ALIGN_RIGHT | NVG_ALIGN_MIDDLE);
nvgText(ctx, mPos.x() + mSize.x() - xSpacing, drawPos.y(),
mUnits.c_str(), nullptr);
unitWidth += 2;
}
switch (mAlignment) {
case Alignment::Left:
nvgTextAlign(ctx, NVG_ALIGN_LEFT | NVG_ALIGN_MIDDLE);
drawPos.x() += xSpacing;
break;
case Alignment::Right:
nvgTextAlign(ctx, NVG_ALIGN_RIGHT | NVG_ALIGN_MIDDLE);
drawPos.x() += mSize.x() - unitWidth - xSpacing;
break;
case Alignment::Center:
nvgTextAlign(ctx, NVG_ALIGN_CENTER | NVG_ALIGN_MIDDLE);
drawPos.x() += mSize.x() * 0.5f;
break;
}
nvgFontSize(ctx, fontSize());
nvgFillColor(ctx,
mEnabled ? mTheme->mTextColor : mTheme->mDisabledTextColor);
// clip visible text area
float clipX = mPos.x() + xSpacing - 1.0f;
float clipY = mPos.y() + 1.0f;
float clipWidth = mSize.x() - unitWidth - 2 * xSpacing + 2.0f;
float clipHeight = mSize.y() - 3.0f;
nvgScissor(ctx, clipX, clipY, clipWidth, clipHeight);
Vector2i oldDrawPos(drawPos);
drawPos.x() += mTextOffset;
if (mCommitted) {
nvgText(ctx, drawPos.x(), drawPos.y(), mValue.c_str(), nullptr);
} else {
const int maxGlyphs = 1024;
NVGglyphPosition glyphs[maxGlyphs];
float textBound[4];
nvgTextBounds(ctx, drawPos.x(), drawPos.y(), mValueTemp.c_str(),
nullptr, textBound);
float lineh = textBound[3] - textBound[1];
// find cursor positions
int nglyphs =
nvgTextGlyphPositions(ctx, drawPos.x(), drawPos.y(),
mValueTemp.c_str(), nullptr, glyphs, maxGlyphs);
updateCursor(ctx, textBound[2], glyphs, nglyphs);
// compute text offset
int prevCPos = mCursorPos > 0 ? mCursorPos - 1 : 0;
int nextCPos = mCursorPos < nglyphs ? mCursorPos + 1 : nglyphs;
float prevCX = cursorIndex2Position(prevCPos, textBound[2], glyphs, nglyphs);
float nextCX = cursorIndex2Position(nextCPos, textBound[2], glyphs, nglyphs);
if (nextCX > clipX + clipWidth)
mTextOffset -= nextCX - (clipX + clipWidth) + 1;
if (prevCX < clipX)
mTextOffset += clipX - prevCX + 1;
drawPos.x() = oldDrawPos.x() + mTextOffset;
// draw text with offset
nvgText(ctx, drawPos.x(), drawPos.y(), mValueTemp.c_str(), nullptr);
nvgTextBounds(ctx, drawPos.x(), drawPos.y(), mValueTemp.c_str(),
nullptr, textBound);
// recompute cursor positions
nglyphs = nvgTextGlyphPositions(ctx, drawPos.x(), drawPos.y(),
mValueTemp.c_str(), nullptr, glyphs, maxGlyphs);
if (mCursorPos > -1) {
if (mSelectionPos > -1) {
float caretx = cursorIndex2Position(mCursorPos, textBound[2],
glyphs, nglyphs);
float selx = cursorIndex2Position(mSelectionPos, textBound[2],
glyphs, nglyphs);
if (caretx > selx)
std::swap(caretx, selx);
// draw selection
nvgBeginPath(ctx);
nvgFillColor(ctx, nvgRGBA(255, 255, 255, 80));
nvgRect(ctx, caretx, drawPos.y() - lineh * 0.5f, selx - caretx,
lineh);
nvgFill(ctx);
}
float caretx = cursorIndex2Position(mCursorPos, textBound[2], glyphs, nglyphs);
// draw cursor
nvgBeginPath(ctx);
nvgMoveTo(ctx, caretx, drawPos.y() - lineh * 0.5f);
nvgLineTo(ctx, caretx, drawPos.y() + lineh * 0.5f);
nvgStrokeColor(ctx, nvgRGBA(255, 192, 0, 255));
nvgStrokeWidth(ctx, 1.0f);
nvgStroke(ctx);
}
}
nvgResetScissor(ctx);
}
static void
draw(NVGcontext *nvg, struct zr_command_queue *queue, int width, int height)
{
const struct zr_command *cmd;
glPushAttrib(GL_ENABLE_BIT|GL_COLOR_BUFFER_BIT);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glEnable(GL_SCISSOR_TEST);
glEnable(GL_TEXTURE_2D);
nvgBeginFrame(nvg, width, height, ((float)width/(float)height));
zr_foreach_command(cmd, queue) {
switch (cmd->type) {
case ZR_COMMAND_NOP: break;
case ZR_COMMAND_SCISSOR: {
const struct zr_command_scissor *s = zr_command(scissor, cmd);
nvgScissor(nvg, s->x, s->y, s->w, s->h);
} break;
case ZR_COMMAND_LINE: {
const struct zr_command_line *l = zr_command(line, cmd);
nvgBeginPath(nvg);
nvgMoveTo(nvg, l->begin.x, l->begin.y);
nvgLineTo(nvg, l->end.x, l->end.y);
nvgFillColor(nvg, nvgRGBA(l->color.r, l->color.g, l->color.b, l->color.a));
nvgFill(nvg);
} break;
case ZR_COMMAND_CURVE: {
const struct zr_command_curve *q = zr_command(curve, cmd);
nvgBeginPath(nvg);
nvgMoveTo(nvg, q->begin.x, q->begin.y);
nvgBezierTo(nvg, q->ctrl[0].x, q->ctrl[0].y, q->ctrl[1].x, q->ctrl[1].y, q->end.x, q->end.y);
nvgStrokeColor(nvg, nvgRGBA(q->color.r, q->color.g, q->color.b, q->color.a));
nvgStroke(nvg);
} break;
case ZR_COMMAND_RECT: {
const struct zr_command_rect *r = zr_command(rect, cmd);
nvgBeginPath(nvg);
nvgRoundedRect(nvg, r->x, r->y, r->w, r->h, r->rounding);
nvgFillColor(nvg, nvgRGBA(r->color.r, r->color.g, r->color.b, r->color.a));
nvgFill(nvg);
} break;
case ZR_COMMAND_CIRCLE: {
const struct zr_command_circle *c = zr_command(circle, cmd);
nvgBeginPath(nvg);
nvgCircle(nvg, c->x + (c->w/2.0f), c->y + c->w/2.0f, c->w/2.0f);
nvgFillColor(nvg, nvgRGBA(c->color.r, c->color.g, c->color.b, c->color.a));
nvgFill(nvg);
} break;
case ZR_COMMAND_TRIANGLE: {
const struct zr_command_triangle *t = zr_command(triangle, cmd);
nvgBeginPath(nvg);
nvgMoveTo(nvg, t->a.x, t->a.y);
nvgLineTo(nvg, t->b.x, t->b.y);
nvgLineTo(nvg, t->c.x, t->c.y);
nvgLineTo(nvg, t->a.x, t->a.y);
nvgFillColor(nvg, nvgRGBA(t->color.r, t->color.g, t->color.b, t->color.a));
nvgFill(nvg);
} break;
case ZR_COMMAND_TEXT: {
const struct zr_command_text *t = zr_command(text, cmd);
nvgBeginPath(nvg);
nvgRoundedRect(nvg, t->x, t->y, t->w, t->h, 0);
nvgFillColor(nvg, nvgRGBA(t->background.r, t->background.g,
t->background.b, t->background.a));
nvgFill(nvg);
nvgBeginPath(nvg);
nvgFillColor(nvg, nvgRGBA(t->foreground.r, t->foreground.g,
t->foreground.b, t->foreground.a));
nvgTextAlign(nvg, NVG_ALIGN_MIDDLE);
nvgText(nvg, t->x, t->y + t->h * 0.5f, t->string, &t->string[t->length]);
nvgFill(nvg);
} break;
case ZR_COMMAND_IMAGE: {
const struct zr_command_image *i = zr_command(image, cmd);
NVGpaint imgpaint;
imgpaint = nvgImagePattern(nvg, i->x, i->y, i->w, i->h, 0, i->img.handle.id, 1.0f);
nvgBeginPath(nvg);
nvgRoundedRect(nvg, i->x, i->y, i->w, i->h, 0);
nvgFillPaint(nvg, imgpaint);
nvgFill(nvg);
} break;
case ZR_COMMAND_ARC:
default: break;
}
}
zr_command_queue_clear(queue);
nvgResetScissor(nvg);
nvgEndFrame(nvg);
glPopAttrib();
}
void imguiRenderNVGDraw()
{
const imguiGfxCmd* q = imguiGetRenderQueue();
int nq = imguiGetRenderQueueSize();
const float s = 1.0f/8.0f;
nvgResetScissor(vg::ctx);
for (int i = 0; i < nq; ++i)
{
const imguiGfxCmd& cmd = q[i];
if (cmd.type == IMGUI_GFXCMD_RECT)
{
if (cmd.rect.r == 0)
{
drawRect((float)cmd.rect.x*s+0.5f, (float)cmd.rect.y*s+0.5f,
(float)cmd.rect.w*s-1, (float)cmd.rect.h*s-1,
1.0f, cmd.col);
}
else
{
drawRoundedRect((float)cmd.rect.x*s+0.5f, (float)cmd.rect.y*s+0.5f,
(float)cmd.rect.w*s-1, (float)cmd.rect.h*s-1,
(float)cmd.rect.r*s, 1.0f, cmd.col);
}
}
else if (cmd.type == IMGUI_GFXCMD_LINE)
{
drawLine(cmd.line.x0*s, cmd.line.y0*s, cmd.line.x1*s, cmd.line.y1*s, cmd.line.r*s, 1.0f, cmd.col);
}
else if (cmd.type == IMGUI_GFXCMD_TRIANGLE)
{
if (cmd.flags == 1)
{
const float verts[3*2] =
{
(float)cmd.rect.x*s+0.5f, (float)cmd.rect.y*s+0.5f,
(float)cmd.rect.x*s+0.5f+(float)cmd.rect.w*s-1, (float)cmd.rect.y*s+0.5f+(float)cmd.rect.h*s/2-0.5f,
(float)cmd.rect.x*s+0.5f, (float)cmd.rect.y*s+0.5f+(float)cmd.rect.h*s-1,
};
drawPolygon(verts, 3, 1.0f, cmd.col);
}
if (cmd.flags == 2)
{
const float verts[3*2] =
{
(float)cmd.rect.x*s+0.5f, (float)cmd.rect.y*s+0.5f+(float)cmd.rect.h*s-1,
(float)cmd.rect.x*s+0.5f+(float)cmd.rect.w*s/2-0.5f, (float)cmd.rect.y*s+0.5f,
(float)cmd.rect.x*s+0.5f+(float)cmd.rect.w*s-1, (float)cmd.rect.y*s+0.5f+(float)cmd.rect.h*s-1,
};
drawPolygon(verts, 3, 1.0f, cmd.col);
}
}
else if (cmd.type == IMGUI_GFXCMD_TEXT)
{
drawText(cmd.text.x, cmd.text.y, cmd.text.text, cmd.text.align, cmd.col);
}
else if (cmd.type == IMGUI_GFXCMD_SCISSOR)
{
if (cmd.flags)
{
nvgScissor(vg::ctx, cmd.rect.x, cmd.rect.y, cmd.rect.w, cmd.rect.h);
}
else
{
nvgResetScissor(vg::ctx);
}
}
}
nvgResetScissor(vg::ctx);
}
bool setScissor(const Vector2f& pos, const Vector2f& size) {
if (!m_inited) return false;
nvgScissor(m_vg, pos.x, pos.y, size.x, size.y);
return true;
}
JNIEXPORT void JNICALL Java_firststep_internal_NVG_scissor
(JNIEnv *e, jclass c, jlong ctx, jfloat x, jfloat y, jfloat w, jfloat h)
{
nvgScissor((NVGcontext*)ctx, x,y, w,h);
}
void NanoInk::redrawText()
{
InkStyle& skin = this->skin();
nvgResetDisplayList(mTextCache);
nvgBindDisplayList(mCtx, mTextCache);
float left = mFrame.cleft();
float top = mFrame.ctop();
float width = mFrame.cwidth();
float height = mFrame.cheight();
float pleft = mFrame.pleft();
float ptop = mFrame.ptop();
float pwidth = mFrame.pwidth();
float pheight = mFrame.pheight();
float contentWidth = contentSize(DIM_X) - skin.padding()[DIM_X] - skin.padding()[DIM_X + 2];
float contentHeight = contentSize(DIM_Y) - skin.padding()[DIM_Y] - skin.padding()[DIM_Y + 2];
float cleft = pleft;
NVGalign halign = NVG_ALIGN_LEFT;
if(skin.align()[DIM_X] == CENTER)
{
halign = NVG_ALIGN_CENTER;
cleft = pleft + pwidth / 2.f - contentWidth / 2.f;
}
else if(skin.align()[DIM_X] == RIGHT)
{
halign = NVG_ALIGN_RIGHT;
cleft = pleft + pwidth - contentWidth;
}
float ctop = ptop;
if(skin.align()[DIM_Y] == CENTER)
ctop = ptop + pheight / 2.f - contentHeight / 2.f;
else if(skin.align()[DIM_Y] == RIGHT)
ctop = ptop + pheight - contentHeight;
// Caption
if(!mFrame.widget().label().empty() && !(pwidth <= 0.f || pheight <= 0.f))
{
//if(mFrame.dclip(DIM_X) || mFrame.dclip(DIM_Y))
// ^ @note this doesn't work because a frame is set to clipped only by its parent, and not when the label is larger than the frame itself
nvgScissor(mCtx, left, top, width, height);
this->setupText();
float lineh = 0.f;
nvgTextMetrics(mCtx, NULL, NULL, &lineh);
const char* start = mFrame.widget().label().c_str();
float x = pleft;
float y = ptop;
for(NVGtextRow& row : mTextRows)
{
if(halign & NVG_ALIGN_LEFT)
x = pleft;
else if(halign & NVG_ALIGN_CENTER)
x = pleft + pwidth*0.5f - row.width*0.5f;
else if(halign & NVG_ALIGN_RIGHT)
x = pleft + pwidth - row.width;
if(mSelectFirst != mSelectSecond)
{
size_t indexStart = row.start - start;
size_t indexEnd = row.end - start;
if(indexEnd > selectStart() && indexStart < selectEnd())
{
size_t selectStart = std::max(indexStart, this->selectStart());
size_t selectEnd = std::min(indexEnd, this->selectEnd());
NVGglyphPosition startPosition;
nvgTextGlyphPosition(mCtx, 0.f, 0.f, row.start, row.end, selectStart - (row.start - start), &startPosition);
NVGglyphPosition endPosition;
nvgTextGlyphPosition(mCtx, 0.f, 0.f, row.start, row.end, selectEnd - (row.start - start), &endPosition);
nvgBeginPath(mCtx);
nvgFillColor(mCtx, nvgRGBA(0, 55, 255, 124));
nvgRect(mCtx, x + startPosition.x, y, endPosition.x - startPosition.x, lineh);
nvgFill(mCtx);
}
}
nvgFillColor(mCtx, nvgColour(skin.mTextColour));
nvgText(mCtx, x, y, row.start, row.end);
y += lineh;
}
/*
nvgText(mCtx, cleft, ctop, mFrame.widget().label().c_str(), nullptr);
*/
nvgResetScissor(mCtx);
}
if(mFrame.dclip(DIM_X) || mFrame.dclip(DIM_Y))
nvgResetScissor(mCtx);
nvgBindDisplayList(mCtx, nullptr);
}
void NanoInk::redrawImage()
{
InkStyle& skin = this->skin();
float left = mFrame.cleft();
float top = mFrame.ctop();
float width = mFrame.cwidth();
float height = mFrame.cheight();
float pleft = mFrame.pleft();
float ptop = mFrame.ptop();
float pwidth = mFrame.pwidth();
float pheight = mFrame.pheight();
float halfb = skin.borderWidth().x0() * 0.5;
float b = skin.borderWidth().x0();
if(width - b <= 0.f || height - b <= 0.f)
return;
nvgResetDisplayList(mImageCache);
nvgBindDisplayList(mCtx, mImageCache);
float contentWidth = contentSize(DIM_X) - skin.padding()[DIM_X] - skin.padding()[DIM_X + 2];
float contentHeight = contentSize(DIM_Y) - skin.padding()[DIM_Y] - skin.padding()[DIM_Y + 2];
float cleft = pleft;
NVGalign halign = NVG_ALIGN_LEFT;
if(skin.align()[DIM_X] == CENTER)
{
halign = NVG_ALIGN_CENTER;
cleft = pleft + pwidth / 2.f - contentWidth / 2.f;
}
else if(skin.align()[DIM_X] == RIGHT)
{
halign = NVG_ALIGN_RIGHT;
cleft = pleft + pwidth - contentWidth;
}
float ctop = ptop;
if(skin.align()[DIM_Y] == CENTER)
ctop = ptop + pheight / 2.f - contentHeight / 2.f;
else if(skin.align()[DIM_Y] == RIGHT)
ctop = ptop + pheight - contentHeight;
float c0 = mCorners.x0();
float c1 = mCorners.y0();
float c2 = mCorners.x1();
float c3 = mCorners.y1();
// Shadow
if(!skin.shadow().d_null)
{
const Shadow& shadow = skin.shadow();
NVGpaint shadowPaint = nvgBoxGradient(mCtx, left + shadow.d_xpos - shadow.d_spread, top + shadow.d_ypos - shadow.d_spread, width + shadow.d_spread * 2.f, height + shadow.d_spread * 2.f, c0 + shadow.d_spread, shadow.d_blur, nvgRGBA(0, 0, 0, 128), nvgRGBA(0, 0, 0, 0));
nvgBeginPath(mCtx);
nvgRect(mCtx, left + shadow.d_xpos - shadow.d_radius, top + shadow.d_ypos - shadow.d_radius, width + shadow.d_radius * 2.f, height + shadow.d_radius * 2.f);
if(mCorners.null())
nvgRect(mCtx, left, top, width, height);
else
nvgRoundedBox(mCtx, left, top, width, height, c0, c1, c2, c3);
nvgPathWinding(mCtx, NVG_HOLE);
nvgFillPaint(mCtx, shadowPaint);
nvgFill(mCtx);
}
// Rect
nvgBeginPath(mCtx);
if(mCorners.null())
nvgRect(mCtx, left + halfb, top + halfb, width - b, height - b);
else
nvgRoundedBox(mCtx, left + halfb, top + halfb, width - b, height - b, c0, c1, c2, c3, mFitCorners);
if(skin.backgroundColour().a() > 0.f)
{
if(skin.topdownGradient().null())
{
nvgFillColor(mCtx, nvgColour(skin.mBackgroundColour));
}
else
{
NVGcolor first = nvgOffsetColour(skin.backgroundColour(), skin.topdownGradient().x());
NVGcolor second = nvgOffsetColour(skin.backgroundColour(), skin.topdownGradient().y());
nvgFillPaint(mCtx, (height > width) ?
nvgLinearGradient(mCtx, left, top, left + width, top, first, second) :
nvgLinearGradient(mCtx, left, top, left, top + height, first, second));
}
nvgFill(mCtx);
}
if(skin.borderWidth().x0() > 0.f)
{
nvgStrokeWidth(mCtx, skin.borderWidth().x0());
nvgStrokeColor(mCtx, nvgColour(skin.borderColour()));
nvgStroke(mCtx);
}
// ImageSkin
if(!skin.imageSkin().null())
{
const ImageSkin& imgskin = skin.mImageSkin;
float margin = skin.imageSkin().d_margin * 2.f;
if(imgskin.d_stretch == DIM_X)
imgskin.stretchCoords(width + margin, imgskin.d_height, [this, left, ctop](ImageSkin::Section s, int x, int y, int w, int h){ this->drawSkinImage(s, float(left + x), float(ctop + y), float(w), float(h)); });
else if(imgskin.d_stretch == DIM_Y)
imgskin.stretchCoords(imgskin.d_width, height + margin, [this, cleft, top](ImageSkin::Section s, int x, int y, int w, int h){ this->drawSkinImage(s, float(cleft + x), float(top + y), float(w), float(h)); });
else
imgskin.stretchCoords(width + margin, height + margin, [this, left, top](ImageSkin::Section s, int x, int y, int w, int h){ this->drawSkinImage(s, float(left + x), float(top + y), float(w), float(h)); });
}
if(mFrame.dclip(DIM_X) || mFrame.dclip(DIM_Y))
nvgScissor(mCtx, left, top, width, height);
// Image
if(mImage)
this->drawImage(*mImage, cleft, ctop, contentWidth, contentHeight);
if(mOverlay)
this->drawImage(*mOverlay, cleft, ctop, contentWidth, contentHeight);
if(mTile)
this->drawImage(*mTile, left, top, width, height);
if(mFrame.dclip(DIM_X) || mFrame.dclip(DIM_Y))
nvgResetScissor(mCtx);
nvgBindDisplayList(mCtx, nullptr);
}
