void Caret::updatePosFromIdx(NVGcontext *ctx) {
float lineh;
nvgTextMetrics(ctx, nullptr, nullptr, &lineh);
const int maxGlyphs = 1024;
NVGglyphPosition glyphs[maxGlyphs];
const std::string& textLine = mConsole->mBuffer[mIdx.y()];
float textBound[4];
nvgTextBounds(ctx, 0, 0, textLine.c_str(), nullptr, textBound);
int nglyphs = nvgTextGlyphPositions(ctx, 0, 0, textLine.c_str(),
nullptr, glyphs, maxGlyphs);
//update carete position now
mPos.y() = mIdx.y() * lineh;
mPos.x() = cursorIndex2Position(mIdx.x(), textBound[2], glyphs, nglyphs);
}
void Caret::onClick(NVGcontext *ctx, float lineh, Vector2i clickPos){
if (clickPos.x() > -1) {
mIdx.y() = (int) clickPos.y()/lineh;
//std::cout << "mPos = " << mConsole->mPos.x() << "," << mConsole->mPos.y() << std::endl;
if(mIdx.y() < (int)mConsole->mBuffer.size()){
//std::cout << mBuffer.at(mCursorPosY)<< std::endl;
double time = glfwGetTime();
if (time - mLastClick < 0.25) {
/* Double-click: select a line */
int linew = mConsole->mSize.x();
mSelectionIdx = Vector2i(0,(int) clickPos.y()/lineh);
mSelectionPos = Vector2i(0,mSelectionIdx.y()*lineh);
mIdx = Vector2i(mConsole->mBuffer[mSelectionIdx.y()].size(), mSelectionIdx.y());
mPos = Vector2i(linew, mSelectionPos.y());
mSelectionState = true;
std::cout << "Sel : " << mSelectionPos.x() << "," << mSelectionPos.y() << std::endl;
std::cout << "Pos : " << mPos.x() << "," << mPos.y() << std::endl;
}
else {
const int maxGlyphs = 1024;
NVGglyphPosition glyphs[maxGlyphs];
const std::string& textLine = mConsole->mBuffer[mIdx.y()];
float textBound[4];
nvgTextBounds(ctx, 0, 0, textLine.c_str(), nullptr, textBound);
int nglyphs = nvgTextGlyphPositions(ctx, 0, 0, textLine.c_str(),
nullptr, glyphs, maxGlyphs);
mIdx.x() = position2CursorIndex(clickPos.x(), textBound[2], glyphs, nglyphs);
//update carete position now
mPos.y() = mIdx.y() * lineh;
mPos.x() = cursorIndex2Position(mIdx.x(), textBound[2], glyphs, nglyphs);
}
mLastClick = time;
}
}
}
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);
}
