#include "mathed/MathData.h"
#include "frontends/alert.h"
+#include "frontends/CaretGeometry.h"
#include "frontends/Delegates.h"
#include "frontends/FontMetrics.h"
#include "frontends/NullPainter.h"
CursorSlice current_row_slice_;
/// are we hovering something that we can click
bool clickable_inset_;
+ /// shape of the caret
+ frontend::CaretGeometry caret_geometry_;
};
// We handle this before FitCursor because the later will require
// correct metrics at cursor position.
if (!(flags & Update::ForceDraw)
- && (flags & Update::SinglePar)
- && !singleParUpdate())
- updateMetrics(flags);
+ && (flags & Update::SinglePar)
+ && !singleParUpdate())
+ updateMetrics(flags);
// Then make sure that the screen contains the cursor if needed
if (flags & Update::FitCursor) {
-void BufferView::scrollDocView(int const value, bool update)
+void BufferView::scrollDocView(int const pixels, bool update)
{
// The scrollbar values are relative to the top of the screen, therefore the
// offset is equal to the target value.
// No scrolling at all? No need to redraw anything
- if (value == 0)
+ if (pixels == 0)
return;
// If the offset is less than 2 screen height, prefer to scroll instead.
- if (abs(value) <= 2 * height_) {
- d->anchor_ypos_ -= value;
+ if (abs(pixels) <= 2 * height_) {
+ d->anchor_ypos_ -= pixels;
processUpdateFlags(Update::Force);
return;
}
// cut off at the top
- if (value <= d->scrollbarParameters_.min) {
+ if (pixels <= d->scrollbarParameters_.min) {
DocIterator dit = doc_iterator_begin(&buffer_);
showCursor(dit, false, update);
LYXERR(Debug::SCROLLING, "scroll to top");
}
// cut off at the bottom
- if (value >= d->scrollbarParameters_.max) {
+ if (pixels >= d->scrollbarParameters_.max) {
DocIterator dit = doc_iterator_end(&buffer_);
dit.backwardPos();
showCursor(dit, false, update);
pit_type i = 0;
for (; i != int(d->par_height_.size()); ++i) {
par_pos += d->par_height_[i];
- if (par_pos >= value)
+ if (par_pos >= pixels)
break;
}
- if (par_pos < value) {
+ if (par_pos < pixels) {
// It seems we didn't find the correct pit so stay on the safe side and
// scroll to bottom.
LYXERR0("scrolling position not found!");
DocIterator dit = doc_iterator_begin(&buffer_);
dit.pit() = i;
- LYXERR(Debug::SCROLLING, "value = " << value << " -> scroll to pit " << i);
+ LYXERR(Debug::SCROLLING, "pixels = " << pixels << " -> scroll to pit " << i);
showCursor(dit, false, update);
}
}
-int BufferView::scroll(int y)
+int BufferView::scroll(int pixels)
{
- if (y > 0)
- return scrollDown(y);
- if (y < 0)
- return scrollUp(-y);
+ if (pixels > 0)
+ return scrollDown(pixels);
+ if (pixels < 0)
+ return scrollUp(-pixels);
return 0;
}
-int BufferView::scrollDown(int offset)
+int BufferView::scrollDown(int pixels)
{
Text * text = &buffer_.text();
TextMetrics & tm = d->text_metrics_[text];
- int const ymax = height_ + offset;
+ int const ymax = height_ + pixels;
while (true) {
pair<pit_type, ParagraphMetrics const *> last = tm.last();
int bottom_pos = last.second->position() + last.second->descent();
if (last.first + 1 == int(text->paragraphs().size())) {
if (bottom_pos <= height_)
return 0;
- offset = min(offset, bottom_pos - height_);
+ pixels = min(pixels, bottom_pos - height_);
break;
}
if (bottom_pos > ymax)
break;
tm.newParMetricsDown();
}
- d->anchor_ypos_ -= offset;
- return -offset;
+ d->anchor_ypos_ -= pixels;
+ return -pixels;
}
-int BufferView::scrollUp(int offset)
+int BufferView::scrollUp(int pixels)
{
Text * text = &buffer_.text();
TextMetrics & tm = d->text_metrics_[text];
- int ymin = - offset;
+ int ymin = - pixels;
while (true) {
pair<pit_type, ParagraphMetrics const *> first = tm.first();
int top_pos = first.second->position() - first.second->ascent();
if (first.first == 0) {
if (top_pos >= 0)
return 0;
- offset = min(offset, - top_pos);
+ pixels = min(pixels, - top_pos);
break;
}
if (top_pos < ymin)
break;
tm.newParMetricsUp();
}
- d->anchor_ypos_ += offset;
- return offset;
+ d->anchor_ypos_ += pixels;
+ return pixels;
}
dim.wid = lyxrc.cursor_width;
p = getPos(cur);
+ // center fat carets horizontally
+ p.x_ -= dim.wid / 2;
+ // p is top-left
p.y_ -= dim.asc;
}
+void BufferView::buildCaretGeometry(bool complet)
+{
+ Point p;
+ Dimension dim;
+ caretPosAndDim(p, dim);
+
+ Cursor const & cur = d->cursor_;
+ Font const & realfont = cur.real_current_font;
+ frontend::FontMetrics const & fm = theFontMetrics(realfont.fontInfo());
+ bool const isrtl = realfont.isVisibleRightToLeft();
+ int const dir = isrtl ? -1 : 1;
+
+ frontend::CaretGeometry & cg = d->caret_geometry_;
+ cg.shapes.clear();
+
+ // The caret itself, slanted for italics in text edit mode except
+ // for selections because the selection rect does not slant
+ bool const slant = fm.italic() && cur.inTexted() && !cur.selection();
+ double const slope = slant ? fm.italicSlope() : 0;
+ cg.shapes.push_back(
+ {{iround(p.x_ + dim.asc * slope), p.y_},
+ {iround(p.x_ - dim.des * slope), p.y_ + dim.height()},
+ {iround(p.x_ + dir * dim.wid - dim.des * slope), p.y_ + dim.height()},
+ {iround(p.x_ + dir * dim.wid + dim.asc * slope), p.y_}}
+ );
+
+ // The language indicator _| (if needed)
+ Language const * doclang = buffer().params().language;
+ if (!((realfont.language() == doclang && isrtl == doclang->rightToLeft())
+ || realfont.language() == latex_language)) {
+ int const lx = dim.height() / 3;
+ int const xx = iround(p.x_ - dim.des * slope);
+ int const yy = p.y_ + dim.height();
+ cg.shapes.push_back(
+ {{xx, yy - dim.wid},
+ {xx + dir * (dim.wid + lx - 1), yy - dim.wid},
+ {xx + dir * (dim.wid + lx - 1), yy},
+ {xx, yy}}
+ );
+ }
+
+ // The completion triangle |> (if needed)
+ if (complet) {
+ int const m = p.y_ + dim.height() / 2;
+ int const d = dim.height() / 8;
+ // offset for slanted carret
+ int const sx = iround((dim.asc - (dim.height() / 2 - d)) * slope);
+ // starting position x
+ int const xx = p.x_ + dir * dim.wid + sx;
+ cg.shapes.push_back(
+ {{xx, m - d},
+ {xx + dir * d, m},
+ {xx, m + d},
+ {xx, m + d - dim.wid},
+ {xx + dir * d - dim.wid, m},
+ {xx, m - d + dim.wid}}
+ );
+ }
+
+ // compute extremal x values
+ cg.left = 1000000;
+ cg.right = -1000000;
+ cg.top = 1000000;
+ cg.bottom = -1000000;
+ for (auto const & shape : cg.shapes)
+ for (Point const & p : shape) {
+ cg.left = min(cg.left, p.x_);
+ cg.right = max(cg.right, p.x_);
+ cg.top = min(cg.top, p.y_);
+ cg.bottom = max(cg.bottom, p.y_);
+ }
+}
+
+
+frontend::CaretGeometry const & BufferView::caretGeometry() const
+{
+ return d->caret_geometry_;
+}
+
+
bool BufferView::caretInView() const
{
if (!paragraphVisible(cursor()))
* move at all
*/
if (paint_caret) {
- Row const & caret_row = d->cursor_.textRow();
- caret_row.changed(true);
+ Cursor cur(d->cursor_);
+ while (cur.depth() > 1) {
+ if (!cur.inTexted())
+ break;
+ TextMetrics const & tm = textMetrics(cur.text());
+ if (d->caret_geometry_.left >= tm.origin().x_
+ && d->caret_geometry_.right <= tm.origin().x_ + tm.dim().width())
+ break;
+ cur.pop();
+ }
+ cur.textRow().changed(true);
}
}
projects / lyx.git / blobdiff