void Screen::drawWidgets() {
if (!mVisible)
return;
glfwMakeContextCurrent(mGLFWWindow);
glfwGetFramebufferSize(mGLFWWindow, &mFBSize[0], &mFBSize[1]);
glfwGetWindowSize(mGLFWWindow, &mSize[0], &mSize[1]);
glViewport(0, 0, mFBSize[0], mFBSize[1]);
/* Calculate pixel ratio for hi-dpi devices. */
mPixelRatio = (float) mFBSize[0] / (float) mSize[0];
nvgBeginFrame(mNVGContext, mSize[0], mSize[1], mPixelRatio);
draw(mNVGContext);
double elapsed = glfwGetTime() - mLastInteraction;
if (elapsed > 0.5f) {
/* Draw tooltips */
const Widget *widget = findWidget(mMousePos);
if (widget && !widget->tooltip().empty()) {
int tooltipWidth = 150;
float bounds[4];
nvgFontFace(mNVGContext, "sans");
nvgFontSize(mNVGContext, 15.0f);
nvgTextAlign(mNVGContext, NVG_ALIGN_CENTER | NVG_ALIGN_TOP);
nvgTextLineHeight(mNVGContext, 1.1f);
Vector2i pos = widget->absolutePosition() +
Vector2i(widget->width() / 2, widget->height() + 10);
nvgTextBoxBounds(mNVGContext, pos.x(), pos.y(), tooltipWidth,
widget->tooltip().c_str(), nullptr, bounds);
nvgGlobalAlpha(mNVGContext,
std::min(1.0, 2 * (elapsed - 0.5f)) * 0.8);
nvgBeginPath(mNVGContext);
nvgFillColor(mNVGContext, Color(0, 255));
int h = (bounds[2] - bounds[0]) / 2;
nvgRoundedRect(mNVGContext, bounds[0] - 4 - h, bounds[1] - 4,
(int) (bounds[2] - bounds[0]) + 8,
(int) (bounds[3] - bounds[1]) + 8, 3);
int px = (int) ((bounds[2] + bounds[0]) / 2) - h;
nvgMoveTo(mNVGContext, px, bounds[1] - 10);
nvgLineTo(mNVGContext, px + 7, bounds[1] + 1);
nvgLineTo(mNVGContext, px - 7, bounds[1] + 1);
nvgFill(mNVGContext);
nvgFillColor(mNVGContext, Color(255, 255));
nvgFontBlur(mNVGContext, 0.0f);
nvgTextBox(mNVGContext, pos.x() - h, pos.y(), tooltipWidth,
widget->tooltip().c_str(), nullptr);
}
}
nvgEndFrame(mNVGContext);
}
void NanoVG::setGlobalAlpha( float alpha )
{
nvgGlobalAlpha( m_context(), alpha );
}
void drawUI(NVGcontext *vg, int item, int corners) {
const UIData *head = (const UIData *)uiGetHandle(item);
UIrect rect = uiGetRect(item);
if (uiGetState(item) == UI_FROZEN) {
nvgGlobalAlpha(vg, BND_DISABLED_ALPHA);
}
if (head) {
switch(head->subtype) {
default: {
testrect(vg,rect);
drawUIItems(vg,item,corners);
} break;
case ST_HBOX: {
drawUIItemsHbox(vg, item);
} break;
case ST_VBOX: {
drawUIItemsVbox(vg, item);
} break;
case ST_PANEL: {
bndBevel(vg,rect.x,rect.y,rect.w,rect.h);
drawUIItems(vg,item,corners);
} break;
case ST_LABEL: {
assert(head);
const UIButtonData *data = (UIButtonData*)head;
bndLabel(vg,rect.x,rect.y,rect.w,rect.h,
data->iconid,data->label);
} break;
case ST_BUTTON: {
const UIButtonData *data = (UIButtonData*)head;
bndToolButton(vg,rect.x,rect.y,rect.w,rect.h,
corners,(BNDwidgetState)uiGetState(item),
data->iconid,data->label);
} break;
case ST_CHECK: {
const UICheckData *data = (UICheckData*)head;
BNDwidgetState state = (BNDwidgetState)uiGetState(item);
if (*data->option)
state = BND_ACTIVE;
bndOptionButton(vg,rect.x,rect.y,rect.w,rect.h, state,
data->label);
} break;
case ST_RADIO:{
const UIRadioData *data = (UIRadioData*)head;
BNDwidgetState state = (BNDwidgetState)uiGetState(item);
if (*data->value == item)
state = BND_ACTIVE;
bndRadioButton(vg,rect.x,rect.y,rect.w,rect.h,
corners,state,
data->iconid,data->label);
} break;
case ST_SLIDER:{
const UISliderData *data = (UISliderData*)head;
BNDwidgetState state = (BNDwidgetState)uiGetState(item);
static char value[32];
sprintf(value,"%.0f%%",(*data->progress)*100.0f);
bndSlider(vg,rect.x,rect.y,rect.w,rect.h,
corners,state,
*data->progress,data->label,value);
} break;
case ST_TEXT: {
const UITextData *data = (UITextData*)head;
BNDwidgetState state = (BNDwidgetState)uiGetState(item);
int idx = strlen(data->text);
bndTextField(vg,rect.x,rect.y,rect.w,rect.h,
corners,state, -1, data->text, idx, idx);
} break;
case ST_DEMOSTUFF: {
draw_demostuff(vg, rect.x, rect.y, rect.w, rect.h);
} break;
case ST_RECT: {
const UIRectData *data = (UIRectData*)head;
if (rect.w && rect.h) {
BNDwidgetState state = (BNDwidgetState)uiGetState(item);
nvgSave(vg);
nvgStrokeColor(vg, nvgRGBAf(data->color.r,data->color.g,data->color.b,0.9f));
if (state != BND_DEFAULT) {
nvgFillColor(vg, nvgRGBAf(data->color.r,data->color.g,data->color.b,0.5f));
} else {
nvgFillColor(vg, nvgRGBAf(data->color.r,data->color.g,data->color.b,0.1f));
}
nvgStrokeWidth(vg,2);
nvgBeginPath(vg);
#if 0
nvgRect(vg,rect.x,rect.y,rect.w,rect.h);
#else
nvgRoundedRect(vg,rect.x,rect.y,rect.w,rect.h,3);
#endif
nvgFill(vg);
nvgStroke(vg);
if (state != BND_DEFAULT) {
nvgFillColor(vg, nvgRGBAf(0.0f,0.0f,0.0f,1.0f));
nvgFontSize(vg, 15.0f);
nvgBeginPath(vg);
nvgTextAlign(vg, NVG_ALIGN_TOP|NVG_ALIGN_CENTER);
nvgTextBox(vg, rect.x, rect.y+rect.h*0.3f, rect.w, data->label, NULL);
}
nvgRestore(vg);
}
nvgSave(vg);
nvgIntersectScissor(vg, rect.x, rect.y, rect.w, rect.h);
drawUIItems(vg,item,corners);
nvgRestore(vg);
} break;
}
} else {
testrect(vg,rect);
drawUIItems(vg,item,corners);
}
if (uiGetState(item) == UI_FROZEN) {
nvgGlobalAlpha(vg, 1.0);
}
}
JNIEXPORT void JNICALL Java_org_lwjgl_nanovg_NanoVG_nnvgGlobalAlpha(JNIEnv *__env, jclass clazz, jlong ctxAddress, jfloat alpha) {
NVGcontext *ctx = (NVGcontext *)(intptr_t)ctxAddress;
UNUSED_PARAMS(__env, clazz)
nvgGlobalAlpha(ctx, alpha);
}
void NVGRenderer::setAlpha(float alpha)
{
nvgGlobalAlpha(m_context, alpha);
}
void QNanoPainter::setGlobalAlpha(float alpha)
{
nvgGlobalAlpha(nvgCtx(), alpha);
}
void drawUI(NVGcontext *vg, int item, int x, int y)
{
const UIData *head = (const UIData *)uiGetData(item);
UIrect rect = uiGetRect(item);
rect.x += x;
rect.y += y;
if (uiGetState(item) == UI_FROZEN)
{
nvgGlobalAlpha(vg, 0.5);
}
if (head)
{
switch (head->subtype)
{
case ST_PANEL:
{
bndBevel(vg,rect.x,rect.y,rect.w,rect.h);
} break;
case ST_LABEL:
{
const UIButtonData *data = (UIButtonData*)head;
bndLabel(vg,rect.x,rect.y,rect.w,rect.h,
data->iconid,data->label);
} break;
case ST_BUTTON:
{
const UIButtonData *data = (UIButtonData*)head;
bndToolButton(vg,rect.x,rect.y,rect.w,rect.h,
cornerFlags(item),(BNDwidgetState)uiGetState(item),
data->iconid,data->label);
} break;
case ST_CHECK:
{
const UICheckData *data = (UICheckData*)head;
BNDwidgetState state = (BNDwidgetState)uiGetState(item);
if (*data->option)
state = BND_ACTIVE;
bndOptionButton(vg,rect.x,rect.y,rect.w,rect.h, state,
data->label);
} break;
case ST_RADIO:
{
const UIRadioData *data = (UIRadioData*)head;
BNDwidgetState state = (BNDwidgetState)uiGetState(item);
if (*data->value == uiGetChildId(item))
state = BND_ACTIVE;
bndRadioButton(vg,rect.x,rect.y,rect.w,rect.h,
cornerFlags(item),state,
data->iconid,data->label);
} break;
case ST_SLIDER:
{
const UISliderData *data = (UISliderData*)head;
BNDwidgetState state = (BNDwidgetState)uiGetState(item);
static char value[32];
sprintf(value,"%.0f%%", (*data->progress)*100.0f);
bndSlider(vg,rect.x,rect.y,rect.w,rect.h,
cornerFlags(item),state,
*data->progress,data->label,value);
} break;
case ST_TEXT: {
const UITextData *data = (UITextData*)head;
BNDwidgetState state = (BNDwidgetState)uiGetState(item);
int idx = strlen(data->text);
bndTextField(vg,rect.x,rect.y,rect.w,rect.h,
cornerFlags(item),state, -1, data->text, idx, idx);
} break;
default:
{
testrect(vg,rect);
} break;
}
}
else
{
testrect(vg,rect);
}
{
// Recursively parse all the children
int kid = uiFirstChild(item);
while (kid > 0)
{
drawUI(vg, kid, rect.x, rect.y);
kid = uiNextSibling(kid);
}
}
if (uiGetState(item) == UI_FROZEN)
{
nvgGlobalAlpha(vg, 1.0);
}
}
JNIEXPORT void JNICALL Java_firststep_internal_NVG_globalAlpha
(JNIEnv *e, jclass c, jlong ctx, jfloat alpha)
{
nvgGlobalAlpha((NVGcontext*)ctx, alpha);
}
