ivec2 Button::preferredSize(NVGcontext * ctx) const
{
int fontSize = mFontSize == -1 ? mTheme->mButtonFontSize : mFontSize;
nvgFontSize(ctx, fontSize);
nvgFontFace(ctx, "sans-bold");
float tw = nvgTextBounds(ctx, 0, 0, mCaption.c_str(), nullptr, nullptr);
float iw = 0.0f, ih = fontSize;
if (mIcon)
{
if (nvgIsFontIcon(mIcon))
{
ih *= 1.5f;
nvgFontFace(ctx, "icons");
nvgFontSize(ctx, ih);
iw = nvgTextBounds(ctx, 0, 0, utf8(mIcon).data(), nullptr, nullptr)
+ mSize.y * 0.15f;
}
else
{
int w, h;
ih *= 0.9f;
nvgImageSize(ctx, mIcon, &w, &h);
iw = w * ih / h;
}
}
return ivec2((int)(tw + iw) + 20, fontSize + 10);
}
ImageGlyph::ImageGlyph(const std::string& file, AlloyContext* context,
bool mipmap) :
Glyph(GetFileNameWithoutExtension(file), GlyphType::Image, 0, 0), file(
file) {
handle = nvgCreateImage(context->nvgContext, file.c_str(),
(mipmap) ? NVG_IMAGE_GENERATE_MIPMAPS : 0);
int w, h;
nvgImageSize(context->nvgContext, handle, &w, &h);
width = (pixel) w;
height = (pixel) h;
}
void NanoImage::_updateSize()
{
int w=0, h=0;
nvgImageSize(fHandle.context, fHandle.imageId, &w, &h);
if (w < 0) w = 0;
if (h < 0) h = 0;
fSize.setSize(static_cast<uint>(w), static_cast<uint>(h));
}
//void nvgImageSize(NVGcontext* ctx, int image, int* w, int* h);
JNIEXPORT void JNICALL Java_firststep_internal_NVG_imageSize
(JNIEnv *e, jclass c, jlong ctx, jint image, jintArray dims)
{
int w, h;
nvgImageSize((NVGcontext*)ctx, image, &w, &h);
jint *dimsArray = (*e)->GetIntArrayElements(e, dims, 0);
dimsArray[0] = w;
dimsArray[1] = h;
(*e)->ReleaseIntArrayElements(e, dims, dimsArray, 0);
}
Image& NanoInk::fetchImage(Image& image, bool tile)
{
if(image.d_index == 0)
{
image.d_index = nvgCreateImage(mCtx, (mLayer.target().window().resourcePath() + "interface/uisprites/" + image.d_name + ".png").c_str(), tile ? (NVG_IMAGE_REPEATX | NVG_IMAGE_REPEATY) : 0);
nvgImageSize(mCtx, image.d_index, &image.d_width, &image.d_height);
#ifdef NANO_ATLAS
ImageRect& rect = mLayer.target().window().atlas().findSpriteRect(image.d_name + ".png");
image.d_left = rect.x;
image.d_top = rect.y;
#endif
}
return image;
}
void other_begin(BATB& batb)
{
auto* nvg = batb.gl.nvg_context;
//glClearColor( 0, 0, 0.3, 0 );
auto image_path = file::static_data( "batb/openforest-512x256.png" );
image = nvgCreateImage( nvg, image_path.c_str(), 0 );
int w, h;
nvgImageSize( nvg, image, &w, &h );
image_wth = w;
image_hth = h;
}
void ImagePanel::draw (NVGcontext * ctx)
{
ivec2 grid = gridSize();
for (size_t i = 0; i < mImages.size(); ++i)
{
ivec2 p = mPos + ivec2 (mMargin) +
ivec2 ((int)i % grid.x, (int)i / grid.x) * (mThumbSize + mSpacing);
int imgw, imgh;
nvgImageSize (ctx, mImages[i].first, &imgw, &imgh);
float iw, ih, ix, iy;
if (imgw < imgh)
{
iw = mThumbSize;
ih = iw * (float)imgh / (float)imgw;
ix = 0;
iy = - (ih - mThumbSize) * 0.5f;
}
else
{
ih = mThumbSize;
iw = ih * (float)imgw / (float)imgh;
ix = - (iw - mThumbSize) * 0.5f;
iy = 0;
}
NVGpaint imgPaint = nvgImagePattern (
ctx, p.x + ix, p.y + iy, iw, ih, 0, mImages[i].first,
mMouseIndex == (int)i ? 1.0 : 0.7);
nvgBeginPath (ctx);
nvgRoundedRect (ctx, p.x, p.y, mThumbSize, mThumbSize, 5);
nvgFillPaint (ctx, imgPaint);
nvgFill (ctx);
NVGpaint shadowPaint =
nvgBoxGradient (ctx, p.x - 1, p.y, mThumbSize + 2, mThumbSize + 2, 5, 3,
nvgRGBA (0, 0, 0, 128), nvgRGBA (0, 0, 0, 0));
nvgBeginPath (ctx);
nvgRect (ctx, p.x - 5, p.y - 5, mThumbSize + 10, mThumbSize + 10);
nvgRoundedRect (ctx, p.x, p.y, mThumbSize, mThumbSize, 6);
nvgPathWinding (ctx, NVG_HOLE);
nvgFillPaint (ctx, shadowPaint);
nvgFill (ctx);
nvgBeginPath (ctx);
nvgRoundedRect (ctx, p.x + 0.5f, p.y + 0.5f, mThumbSize - 1, mThumbSize - 1, 4 - 0.5f);
nvgStrokeWidth (ctx, 1.0f);
nvgStrokeColor (ctx, nvgRGBA (255, 255, 255, 80));
nvgStroke (ctx);
}
}
Vector2i TextBox::preferredSize(NVGcontext *ctx) const {
Vector2i size(0, fontSize() * 1.4f);
float uw = 0;
if (mUnitsImage > 0) {
int w, h;
nvgImageSize(ctx, mUnitsImage, &w, &h);
float uh = size(1) * 0.4f;
uw = w * uh / h;
} else if (!mUnits.empty()) {
uw = nvgTextBounds(ctx, 0, 0, mUnits.c_str(), nullptr, nullptr);
}
float ts = nvgTextBounds(ctx, 0, 0, mValue.c_str(), nullptr, nullptr);
size(0) = size(1) + ts + uw;
return size;
}
bool t2Image::loadImage(string path)
{
img = nvgCreateImage(t2GetContext(), path.c_str(), 0);
if(!img)
{
bLoaded = false;
t2PrintError("图片读取失败,可能是路径有误");
return false;
}
else
{
bLoaded = true;
nvgImageSize(t2GetContext(), img, &width, &height);
return true;
}
}
void renderPattern(NVGcontext* vg, NVGLUframebuffer* fb, float t, float pxRatio)
{
int winWidth, winHeight;
int fboWidth, fboHeight;
int pw, ph, x, y;
float s = 20.0f;
float sr = (cosf(t)+1)*0.5f;
float r = s * 0.6f * (0.2f + 0.8f * sr);
if (fb == NULL) return;
nvgImageSize(vg, fb->image, &fboWidth, &fboHeight);
winWidth = (int)(fboWidth / pxRatio);
winHeight = (int)(fboHeight / pxRatio);
// Draw some stuff to an FBO as a test
nvgluBindFramebuffer(fb);
glViewport(0, 0, fboWidth, fboHeight);
glClearColor(0, 0, 0, 0);
glClear(GL_COLOR_BUFFER_BIT|GL_STENCIL_BUFFER_BIT);
nvgBeginFrame(vg, winWidth, winHeight, pxRatio);
pw = (int)ceilf(winWidth / s);
ph = (int)ceilf(winHeight / s);
nvgBeginPath(vg);
for (y = 0; y < ph; y++) {
for (x = 0; x < pw; x++) {
float cx = (x+0.5f) * s;
float cy = (y+0.5f) * s;
nvgCircle(vg, cx,cy, r);
}
}
nvgFillColor(vg, nvgRGBA(220,160,0,200));
nvgFill(vg);
nvgEndFrame(vg);
nvgluBindFramebuffer(NULL);
}
void Button::draw(NVGcontext *ctx) {
Widget::draw(ctx);
NVGcolor gradTop = mTheme->mButtonGradientTopUnfocused;
NVGcolor gradBot = mTheme->mButtonGradientBotUnfocused;
if (mPushed) {
gradTop = mTheme->mButtonGradientTopPushed;
gradBot = mTheme->mButtonGradientBotPushed;
} else if (mMouseFocus && mEnabled) {
gradTop = mTheme->mButtonGradientTopFocused;
gradBot = mTheme->mButtonGradientBotFocused;
}
nvgBeginPath(ctx);
nvgRoundedRect(ctx, mPos.x() + 1, mPos.y() + 1.0f, mSize.x() - 2,
mSize.y() - 2, mTheme->mButtonCornerRadius - 1);
if(mBackgroundColor.w() != 0) {
nvgFillColor(ctx, mBackgroundColor);
nvgFill(ctx);
if(mPushed) {
gradTop.a = gradBot.a = 0.8f;
}
else {
double v = 1-mBackgroundColor.w();
gradTop.a = gradBot.a = mEnabled ? v : 0.5f;
gradTop.a = gradBot.a = (mMouseFocus && mEnabled) ? gradTop.a+0.2 : gradTop.a;
}
}
NVGpaint bg = nvgLinearGradient(ctx, mPos.x(), mPos.y(), mPos.x(),
mPos.y() + mSize.y(), gradTop, gradBot);
nvgFillPaint(ctx, bg);
nvgFill(ctx);
nvgBeginPath(ctx);
nvgRoundedRect(ctx, mPos.x() + 0.5f, mPos.y() + (mPushed ? 0.5f : 1.5f), mSize.x() - 1,
mSize.y() - 1 - (mPushed ? 0.0f : 1.0f), mTheme->mButtonCornerRadius);
nvgStrokeColor(ctx, mTheme->mBorderLight);
nvgStroke(ctx);
nvgBeginPath(ctx);
nvgRoundedRect(ctx, mPos.x() + 0.5f, mPos.y() + 0.5f, mSize.x() - 1,
mSize.y() - 2, mTheme->mButtonCornerRadius);
nvgStrokeColor(ctx, mTheme->mBorderDark);
nvgStroke(ctx);
nvgFontSize(ctx, mFontSize == -1 ? mTheme->mButtonFontSize : mFontSize);
nvgFontFace(ctx, "sans-bold");
float tw = nvgTextBounds(ctx, 0,0, mCaption.c_str(), nullptr, nullptr);
Vector2f center = mPos.cast<float>() + mSize.cast<float>() * 0.5f;
Vector2f textPos(center.x() - tw * 0.5f, center.y() - 1);
NVGcolor textColor =
mTextColor.w() == 0 ? mTheme->mTextColor : mTextColor;
if (!mEnabled)
textColor = mTheme->mDisabledTextColor;
if (mIcon) {
auto icon = utf8(mIcon);
float iw, ih = mFontSize == -1 ? mTheme->mButtonFontSize : mFontSize;
if (nvgIsFontIcon(mIcon)) {
ih *= 1.5f;
nvgFontSize(ctx, ih);
nvgFontFace(ctx, "icons");
iw = nvgTextBounds(ctx, 0, 0, icon.data(), nullptr, nullptr);
} else {
int w, h;
ih *= 0.9f;
nvgImageSize(ctx, mIcon, &w, &h);
iw = w * ih / h;
}
if (mCaption != "")
iw += mSize.y() * 0.15f;
nvgFillColor(ctx, textColor);
nvgTextAlign(ctx, NVG_ALIGN_LEFT | NVG_ALIGN_MIDDLE);
Vector2f iconPos = center;
iconPos.y() -= 1;
if (mIconPosition == LeftCentered) {
iconPos.x() -= (tw + iw) * 0.5f;
textPos.x() += iw * 0.5f;
} else if (mIconPosition == RightCentered) {
textPos.x() -= iw * 0.5f;
iconPos.x() += tw * 0.5f;
} else if (mIconPosition == Left) {
iconPos.x() = mPos.x() + 8;
} else if (mIconPosition == Right) {
iconPos.x() = mPos.x() + mSize.x() - iw - 8;
}
if (nvgIsFontIcon(mIcon)) {
nvgText(ctx, iconPos.x(), iconPos.y()+1, icon.data(), nullptr);
} else {
NVGpaint imgPaint = nvgImagePattern(ctx,
iconPos.x(), iconPos.y() - ih/2, iw, ih, 0, mIcon, mEnabled ? 0.5f : 0.25f);
nvgFillPaint(ctx, imgPaint);
nvgFill(ctx);
}
}
nvgFontSize(ctx, mFontSize == -1 ? mTheme->mButtonFontSize : mFontSize);
nvgFontFace(ctx, "sans-bold");
nvgTextAlign(ctx, NVG_ALIGN_LEFT | NVG_ALIGN_MIDDLE);
nvgFillColor(ctx, mTheme->mTextColorShadow);
nvgText(ctx, textPos.x(), textPos.y(), mCaption.c_str(), nullptr);
nvgFillColor(ctx, textColor);
nvgText(ctx, textPos.x(), textPos.y()+1, mCaption.c_str(), nullptr);
}
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 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);
}
void Button::draw(NVGcontext * ctx)
{
Widget::draw(ctx);
NVGcolor gradTop = mTheme->mButtonGradientTopUnfocused;
NVGcolor gradBot = mTheme->mButtonGradientBotUnfocused;
if (mPushed)
{
gradTop = mTheme->mButtonGradientTopPushed;
gradBot = mTheme->mButtonGradientBotPushed;
}
else
if (mMouseFocus && mEnabled)
{
gradTop = mTheme->mButtonGradientTopFocused;
gradBot = mTheme->mButtonGradientBotFocused;
}
nvgBeginPath(ctx);
nvgRoundedRect(ctx, mPos.x + 1, mPos.y + 1.0f, mSize.x - 2,
mSize.y - 2, mTheme->mButtonCornerRadius - 1);
if (mBackgroundColor.a != 0)
{
nvgFillColor(ctx, Colour(mBackgroundColor.r, mBackgroundColor.g, mBackgroundColor.b, 1.f));
nvgFill(ctx);
if (mPushed)
gradTop.a = gradBot.a = 0.8f;
else
{
double v = 1 - mBackgroundColor.a;
gradTop.a = gradBot.a = mEnabled ? v : v * .5f + .5f;
}
}
NVGpaint bg = nvgLinearGradient(ctx, mPos.x, mPos.y, mPos.x,
mPos.y + mSize.y, gradTop, gradBot);
nvgFillPaint(ctx, bg);
nvgFill(ctx);
nvgBeginPath(ctx);
nvgRoundedRect(ctx, mPos.x + 0.5f, mPos.y + (mPushed ? 0.5f : 1.5f), mSize.x - 1,
mSize.y - 1 - (mPushed ? 0.0f : 1.0f), mTheme->mButtonCornerRadius);
nvgStrokeColor(ctx, mTheme->mBorderLight);
nvgStroke(ctx);
nvgBeginPath(ctx);
nvgRoundedRect(ctx, mPos.x + 0.5f, mPos.y + 0.5f, mSize.x - 1,
mSize.y - 2, mTheme->mButtonCornerRadius);
nvgStrokeColor(ctx, mTheme->mBorderDark);
nvgStroke(ctx);
int fontSize = mFontSize == -1 ? mTheme->mButtonFontSize : mFontSize;
nvgFontSize(ctx, fontSize);
nvgFontFace(ctx, "sans-bold");
float tw = nvgTextBounds(ctx, 0, 0, mCaption.c_str(), nullptr, nullptr);
vec2 center = vec2((float)mPos.x, (float)mPos.y) + vec2((float)mSize.x, (float)mSize.y) * 0.5f;
vec2 textPos(center.x - tw * 0.5f, center.y - 1);
NVGcolor textColor =
mTextColor.a == 0 ? mTheme->mTextColor : mTextColor;
if (!mEnabled)
textColor = mTheme->mDisabledTextColor;
if (mIcon)
{
auto icon = utf8(mIcon);
float iw, ih = fontSize;
if (nvgIsFontIcon(mIcon))
{
ih *= 1.5f;
nvgFontSize(ctx, ih);
nvgFontFace(ctx, "icons");
iw = nvgTextBounds(ctx, 0, 0, icon.data(), nullptr, nullptr);
}
else
{
int w, h;
ih *= 0.9f;
nvgImageSize(ctx, mIcon, &w, &h);
iw = w * ih / h;
}
if (mCaption != "")
iw += mSize.y * 0.15f;
nvgFillColor(ctx, textColor);
nvgTextAlign(ctx, NVG_ALIGN_LEFT | NVG_ALIGN_MIDDLE);
vec2 iconPos = center;
iconPos.y -= 1;
if (mIconPosition == IconPosition::LeftCentered)
{
iconPos.x -= (tw + iw) * 0.5f;
textPos.x += iw * 0.5f;
}
else
if (mIconPosition == IconPosition::RightCentered)
{
textPos.x -= iw * 0.5f;
iconPos.x += tw * 0.5f;
}
else
if (mIconPosition == IconPosition::Left)
iconPos.x = mPos.x + 8;
else
if (mIconPosition == IconPosition::Right)
iconPos.x = mPos.x + mSize.x - iw - 8;
if (nvgIsFontIcon(mIcon))
nvgText(ctx, iconPos.x, iconPos.y + 1, icon.data(), nullptr);
else
{
NVGpaint imgPaint = nvgImagePattern(ctx,
iconPos.x, iconPos.y - ih / 2, iw, ih, 0, mIcon, mEnabled ? 0.5f : 0.25f);
nvgFillPaint(ctx, imgPaint);
nvgFill(ctx);
}
}
nvgFontSize(ctx, fontSize);
nvgFontFace(ctx, "sans-bold");
nvgTextAlign(ctx, NVG_ALIGN_LEFT | NVG_ALIGN_MIDDLE);
nvgFillColor(ctx, mTheme->mTextColorShadow);
nvgText(ctx, textPos.x, textPos.y, mCaption.c_str(), nullptr);
nvgFillColor(ctx, textColor);
nvgText(ctx, textPos.x, textPos.y + 1, mCaption.c_str(), nullptr);
}
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));
nvgStrokeWidth(nvg, 3);
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));
nvgFontSize(nvg, (float)t->height);
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: {
int w, h;
NVGpaint imgpaint;
const struct zr_command_image *i = zr_command(image, cmd);
nvgImageSize(nvg, i->img.handle.id, &w, &h);
nvgBeginPath(nvg);
nvgRect(nvg, i->x, i->y, i->w, i->h);
nvgFillPaint(nvg, nvgImagePattern(nvg,
i->x, i->y, i->w, i->h, 0, i->img.handle.id, 1));
nvgFill(nvg);
} break;
case ZR_COMMAND_ARC:
default: break;
}
}
zr_command_queue_clear(queue);
nvgResetScissor(nvg);
nvgEndFrame(nvg);
glPopAttrib();
}
