void TabWidget::draw(NVGcontext* ctx) {
int tabHeight = mHeader->preferredSize(ctx).y();
auto activeArea = mHeader->activeButtonArea();
for (int i = 0; i < 3; ++i) {
nvgSave(ctx);
if (i == 0)
nvgIntersectScissor(ctx, mPos.x(), mPos.y(), activeArea.first.x() + 1, mSize.y());
else if (i == 1)
nvgIntersectScissor(ctx, mPos.x() + activeArea.second.x(), mPos.y(), mSize.x() - activeArea.second.x(), mSize.y());
else
nvgIntersectScissor(ctx, mPos.x(), mPos.y() + tabHeight + 2, mSize.x(), mSize.y());
nvgBeginPath(ctx);
nvgStrokeWidth(ctx, 1.0f);
nvgRoundedRect(ctx, mPos.x() + 0.5f, mPos.y() + tabHeight + 1.5f, mSize.x() - 1,
mSize.y() - tabHeight - 2, mTheme->mButtonCornerRadius);
nvgStrokeColor(ctx, mTheme->mBorderLight);
nvgStroke(ctx);
nvgBeginPath(ctx);
nvgRoundedRect(ctx, mPos.x() + 0.5f, mPos.y() + tabHeight + 0.5f, mSize.x() - 1,
mSize.y() - tabHeight - 2, mTheme->mButtonCornerRadius);
nvgStrokeColor(ctx, mTheme->mBorderDark);
nvgStroke(ctx);
nvgRestore(ctx);
}
Widget::draw(ctx);
}
void TabWidget::draw(NVGcontext* ctx) {
int tab_height = m_header->preferred_size(ctx).y();
auto active_area = m_header->active_button_area();
for (int i = 0; i < 3; ++i) {
nvgSave(ctx);
if (i == 0)
nvgIntersectScissor(ctx, m_pos.x(), m_pos.y(), active_area.first.x() + 1, m_size.y());
else if (i == 1)
nvgIntersectScissor(ctx, m_pos.x() + active_area.second.x(), m_pos.y(), m_size.x() - active_area.second.x(), m_size.y());
else
nvgIntersectScissor(ctx, m_pos.x(), m_pos.y() + tab_height + 2, m_size.x(), m_size.y());
nvgBeginPath(ctx);
nvgStrokeWidth(ctx, 1.0f);
nvgRoundedRect(ctx, m_pos.x() + 0.5f, m_pos.y() + tab_height + 1.5f, m_size.x() - 1,
m_size.y() - tab_height - 2, m_theme->m_button_corner_radius);
nvgStrokeColor(ctx, m_theme->m_border_light);
nvgStroke(ctx);
nvgBeginPath(ctx);
nvgRoundedRect(ctx, m_pos.x() + 0.5f, m_pos.y() + tab_height + 0.5f, m_size.x() - 1,
m_size.y() - tab_height - 2, m_theme->m_button_corner_radius);
nvgStrokeColor(ctx, m_theme->m_border_dark);
nvgStroke(ctx);
nvgRestore(ctx);
}
Widget::draw(ctx);
}
void VScrollPanel::draw(NVGcontext *ctx) {
if (m_children.empty())
return;
Widget *child = m_children[0];
child->set_position(Vector2i(0, -m_scroll*(m_child_preferred_height - m_size.y())));
m_child_preferred_height = child->preferred_size(ctx).y();
float scrollh = height() *
std::min(1.0f, height() / (float) m_child_preferred_height);
if (m_update_layout) {
m_update_layout = false;
child->perform_layout(ctx);
}
nvgSave(ctx);
nvgTranslate(ctx, m_pos.x(), m_pos.y());
nvgIntersectScissor(ctx, 0, 0, m_size.x(), m_size.y());
if (child->visible())
child->draw(ctx);
nvgRestore(ctx);
if (m_child_preferred_height <= m_size.y())
return;
NVGpaint paint = nvgBoxGradient(
ctx, m_pos.x() + m_size.x() - 12 + 1, m_pos.y() + 4 + 1, 8,
m_size.y() - 8, 3, 4, Color(0, 32), Color(0, 92));
nvgBeginPath(ctx);
nvgRoundedRect(ctx, m_pos.x() + m_size.x() - 12, m_pos.y() + 4, 8,
m_size.y() - 8, 3);
nvgFillPaint(ctx, paint);
nvgFill(ctx);
paint = nvgBoxGradient(
ctx, m_pos.x() + m_size.x() - 12 - 1,
m_pos.y() + 4 + (m_size.y() - 8 - scrollh) * m_scroll - 1, 8, scrollh,
3, 4, Color(220, 100), Color(128, 100));
nvgBeginPath(ctx);
nvgRoundedRect(ctx, m_pos.x() + m_size.x() - 12 + 1,
m_pos.y() + 4 + 1 + (m_size.y() - 8 - scrollh) * m_scroll, 8 - 2,
scrollh - 2, 2);
nvgFillPaint(ctx, paint);
nvgFill(ctx);
}
void NanoVG::intersectScissor( float x, float y, float w, float h )
{
nvgIntersectScissor( m_context(), x, y, w, h );
}
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);
}
}
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);
nvgSave(ctx);
nvgIntersectScissor(ctx, mPos.x(), mPos.y(), mSize.x(), 0.5f);
nvgStroke(ctx);
nvgResetScissor(ctx);
nvgRestore(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 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 if (mSpinnable && mMouseDownPos.x() != -1)
nvgFillPaint(ctx, fg1);
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;
}
float spinArrowsWidth = 0.f;
if (mSpinnable && !focused()) {
spinArrowsWidth = 14.f;
nvgFontFace(ctx, "icons");
nvgFontSize(ctx, ((mFontSize < 0) ? mTheme->mButtonFontSize : mFontSize) * 1.2f);
bool spinning = mMouseDownPos.x() != -1;
{
bool hover = mMouseFocus && spinArea(mMousePos) == SpinArea::Top;
nvgFillColor(ctx, (mEnabled && (hover || spinning)) ? mTheme->mTextColor : mTheme->mDisabledTextColor);
auto icon = utf8(ENTYPO_ICON_CHEVRON_UP);
nvgTextAlign(ctx, NVG_ALIGN_LEFT | NVG_ALIGN_MIDDLE);
Vector2f iconPos(mPos.x() + 4.f,
mPos.y() + mSize.y()/2.f - xSpacing/2.f);
nvgText(ctx, iconPos.x(), iconPos.y(), icon.data(), nullptr);
}
{
bool hover = mMouseFocus && spinArea(mMousePos) == SpinArea::Bottom;
nvgFillColor(ctx, (mEnabled && (hover || spinning)) ? mTheme->mTextColor : mTheme->mDisabledTextColor);
auto icon = utf8(ENTYPO_ICON_CHEVRON_DOWN);
nvgTextAlign(ctx, NVG_ALIGN_LEFT | NVG_ALIGN_MIDDLE);
Vector2f iconPos(mPos.x() + 4.f,
mPos.y() + mSize.y()/2.f + xSpacing/2.f + 1.5f);
nvgText(ctx, iconPos.x(), iconPos.y(), icon.data(), nullptr);
}
nvgFontSize(ctx, fontSize());
nvgFontFace(ctx, "sans");
}
switch (mAlignment) {
case Alignment::Left:
nvgTextAlign(ctx, NVG_ALIGN_LEFT | NVG_ALIGN_MIDDLE);
drawPos.x() += xSpacing + spinArrowsWidth;
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 + spinArrowsWidth - 1.0f;
float clipY = mPos.y() + 1.0f;
float clipWidth = mSize.x() - unitWidth - spinArrowsWidth - 2 * xSpacing + 2.0f;
float clipHeight = mSize.y() - 3.0f;
nvgSave(ctx);
nvgIntersectScissor(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);
}
}
nvgRestore(ctx);
}
JNIEXPORT void JNICALL Java_firststep_internal_NVG_intersectScissor
(JNIEnv *e, jclass c, jlong ctx, jfloat x, jfloat y, jfloat w, jfloat h)
{
nvgIntersectScissor((NVGcontext*)ctx, x, y, w, h);
}