/* This file is part of
-* ======================================================
-*
+* ======================================================
+*
* LyX, The Document Processor
-*
+*
* Copyright 1995 Matthias Ettrich
* Copyright 1995-1998 The LyX Team
*
GC createGC()
{
XGCValues val;
- val.foreground = BlackPixel(fl_get_display(),
+ val.foreground = BlackPixel(fl_get_display(),
DefaultScreen(fl_get_display()));
-
+
val.function = GXcopy;
val.graphics_exposures = false;
val.line_style = LineSolid;
val.line_width = 0;
- return XCreateGC(fl_get_display(), RootWindow(fl_get_display(), 0),
+ return XCreateGC(fl_get_display(), RootWindow(fl_get_display(), 0),
GCForeground | GCFunction | GCGraphicsExposures
| GCLineWidth | GCLineStyle , &val);
}
XFreeGC(fl_get_display(), gc_copy);
}
-
-void LyXScreen::setCursorColor()
+
+void LyXScreen::setCursorColor()
{
if (!lyxColorHandler.get()) return;
GC gc = lyxColorHandler->getGCForeground(LColor::cursor);
-
+
XGCValues val;
XGetGCValues(fl_get_display(),
gc, GCForeground, &val);
void LyXScreen::redraw(LyXText * text, BufferView * bv)
{
- drawFromTo(text, bv, 0, owner.height());
+ drawFromTo(text, bv, 0, owner.height(), 0, 0, text == bv->text);
expose(0, 0, owner.workWidth(), owner.height());
if (cursor_visible) {
cursor_visible = false;
- showCursor(text, bv);
+ bv->showCursor();
}
}
void LyXScreen::drawFromTo(LyXText * text, BufferView * bv,
- int y1, int y2, int y_offset, int x_offset)
+ int y1, int y2, int y_offset, int x_offset,
+ bool internal)
{
- int y_text = text->first + y1;
-
- // get the first needed row
+ int y_text = text->first_y + y1;
+
+ // get the first needed row
Row * row = text->getRowNearY(y_text);
// y_text is now the real beginning of the row
-
- int y = y_text - text->first;
+
+ int y = y_text - text->first_y;
// y1 is now the real beginning of row on the screen
-
+
while (row != 0 && y < y2) {
- LyXText::text_status st = bv->text->status();
- do {
- bv->text->status(bv, st);
+ LyXText::text_status st = text->status();
+ text->getVisibleRow(bv, y + y_offset,
+ x_offset, row, y + text->first_y);
+ internal = internal && (st != LyXText::CHANGED_IN_DRAW);
+ while (internal && text->status() == LyXText::CHANGED_IN_DRAW) {
+ if (text->fullRebreak(bv)) {
+ st = LyXText::NEED_MORE_REFRESH;
+ text->setCursor(bv, text->cursor.par(), text->cursor.pos());
+ }
+ text->status(bv, st);
text->getVisibleRow(bv, y + y_offset,
- x_offset, row, y + text->first);
- } while (bv->text->status() == LyXText::CHANGED_IN_DRAW);
- bv->text->status(bv, st);
+ x_offset, row, y + text->first_y);
+ }
y += row->height();
row = row->next();
}
void LyXScreen::drawOneRow(LyXText * text, BufferView * bv, Row * row,
int y_text, int y_offset, int x_offset)
{
- int const y = y_text - text->first + y_offset;
+ int const y = y_text - text->first_y + y_offset;
if (((y + row->height()) > 0) &&
((y - row->height()) <= static_cast<int>(owner.height()))) {
// ok there is something visible
+#if 0
LyXText::text_status st = bv->text->status();
do {
bv->text->status(bv, st);
text->getVisibleRow(bv, y, x_offset, row,
- y + text->first);
- } while (bv->text->status() == LyXText::CHANGED_IN_DRAW);
+ y + text->first_y);
+ } while (!text->inset_owner &&
+ text->status() == LyXText::CHANGED_IN_DRAW);
bv->text->status(bv, st);
+#else
+ text->getVisibleRow(bv, y, x_offset, row, y + text->first_y);
+#endif
}
force_clear = false;
}
/* draws the screen, starting with textposition y. uses as much already
-* printed pixels as possible */
+ * printed pixels as possible */
void LyXScreen::draw(LyXText * text, BufferView * bv, unsigned int y)
{
if (cursor_visible) hideCursor();
- int const old_first = text->first;
- text->first = y;
+ int const old_first = text->first_y;
+ bool internal = (text == bv->text);
+ text->first_y = y;
// is any optimiziation possible?
if ((y - old_first) < owner.height()
- && (old_first - y) < owner.height()) {
- if (text->first < old_first) {
- drawFromTo(text, bv, 0, old_first - text->first);
+ && (old_first - y) < owner.height())
+ {
+ if (text->first_y < old_first) {
+ drawFromTo(text, bv, 0,
+ old_first - text->first_y, 0, 0, internal);
XCopyArea (fl_get_display(),
owner.getWin(),
owner.getWin(),
owner.xpos(),
owner.ypos(),
owner.workWidth(),
- owner.height() - old_first + text->first,
+ owner.height() - old_first + text->first_y,
owner.xpos(),
- owner.ypos() + old_first - text->first
+ owner.ypos() + old_first - text->first_y
);
// expose the area drawn
expose(0, 0,
owner.workWidth(),
- old_first - text->first);
+ old_first - text->first_y);
} else {
drawFromTo(text, bv,
- owner.height() + old_first - text->first,
- owner.height());
+ owner.height() + old_first - text->first_y,
+ owner.height(), 0, 0, internal);
XCopyArea (fl_get_display(),
owner.getWin(),
owner.getWin(),
gc_copy,
owner.xpos(),
- owner.ypos() + text->first - old_first,
+ owner.ypos() + text->first_y - old_first,
owner.workWidth(),
- owner.height() + old_first - text->first,
+ owner.height() + old_first - text->first_y,
owner.xpos(),
owner.ypos());
// expose the area drawn
- expose(0, owner.height() + old_first - text->first,
- owner.workWidth(), text->first - old_first);
+ expose(0, owner.height() + old_first - text->first_y,
+ owner.workWidth(), text->first_y - old_first);
}
} else {
- // make a dumb new-draw
- drawFromTo(text, bv, 0, owner.height());
+ // make a dumb new-draw
+ drawFromTo(text, bv, 0, owner.height(), 0, 0, internal);
expose(0, 0, owner.workWidth(), owner.height());
}
}
}
-/* returns true if first has changed, otherwise false */
+/* returns true if first has changed, otherwise false */
bool LyXScreen::fitManualCursor(LyXText * text, BufferView * bv,
int /*x*/, int y, int asc, int desc)
{
- int newtop = text->first;
-
- if (y + desc - text->first >= static_cast<int>(owner.height()))
+ int newtop = text->first_y;
+
+ if (y + desc - text->first_y >= static_cast<int>(owner.height()))
newtop = y - 3 * owner.height() / 4; // the scroll region must be so big!!
- else if (y - asc < static_cast<int>(text->first)
- && text->first > 0) {
+ else if (y - asc < text->first_y
+ && text->first_y > 0) {
newtop = y - owner.height() / 4;
}
newtop = max(newtop, 0); // can newtop ever be < 0? (Lgb)
-
- if (newtop != static_cast<int>(text->first)) {
+
+ if (newtop != text->first_y) {
draw(text, bv, newtop);
- text->first = newtop;
+ text->first_y = newtop;
return true;
}
return false;
{
// Update the cursor color.
setCursorColor();
-
- int const y1 = max(y - text->first - asc, 0);
- int const y_tmp = min(y - text->first + desc,
+
+ int const y1 = max(y - text->first_y - asc, 0);
+ int const y_tmp = min(y - text->first_y + desc,
static_cast<int>(owner.height()));
// Secure against very strange situations
int const y2 = max(y_tmp, y1);
-
- if (cursor_pixmap){
+
+ if (cursor_pixmap) {
XFreePixmap(fl_get_display(), cursor_pixmap);
cursor_pixmap = 0;
}
break;
}
- cursor_pixmap =
+ cursor_pixmap =
XCreatePixmap (fl_get_display(),
fl_root,
cursor_pixmap_w,
{
if (!cursor_visible) return;
- if (cursor_pixmap){
- XCopyArea (fl_get_display(),
+ if (cursor_pixmap) {
+ XCopyArea (fl_get_display(),
cursor_pixmap,
owner.getWin(),
gc_copy,
- 0, 0,
+ 0, 0,
cursor_pixmap_w, cursor_pixmap_h,
cursor_pixmap_x + owner.xpos(),
cursor_pixmap_y + owner.ypos());
}
-void LyXScreen::cursorToggle(LyXText const * text, BufferView const * bv)
+void LyXScreen::cursorToggle(BufferView * bv) const
{
if (cursor_visible)
- hideCursor();
+ bv->hideCursor();
else
- showCursor(text, bv);
+ bv->showCursor();
}
-/* returns a new top so that the cursor is visible */
+/* returns a new top so that the cursor is visible */
unsigned int LyXScreen::topCursorVisible(LyXText const * text)
{
- int newtop = text->first;
-
- if (text->cursor.y()
- - text->cursor.row()->baseline()
- + text->cursor.row()->height()
- - text->first >= owner.height()) {
- if (text->cursor.row()->height() < owner.height()
- && text->cursor.row()->height() > owner.height() / 4)
+ int newtop = text->first_y;
+
+ Row * row = text->cursor.row();
+
+ // Is this a hack? Yes, probably... (Lgb)
+ if (!row)
+ return max(newtop, 0);
+
+ if (text->cursor.y() - row->baseline() + row->height()
+ - text->first_y >= owner.height()) {
+ if (row->height() < owner.height()
+ && row->height() > owner.height() / 4) {
newtop = text->cursor.y()
- + text->cursor.row()->height()
- - text->cursor.row()->baseline() - owner.height();
- else
+ + row->height()
+ - row->baseline() - owner.height();
+ } else {
+ // scroll down
newtop = text->cursor.y()
- - 3 * owner.height() / 4; /* the scroll region must be so big!! */
- } else if (static_cast<int>((text->cursor.y()) - text->cursor.row()->baseline()) <
- text->first && text->first > 0)
- {
- if (text->cursor.row()->height() < owner.height()
- && text->cursor.row()->height() > owner.height() / 4)
- newtop = text->cursor.y() - text->cursor.row()->baseline();
- else {
- newtop = text->cursor.y() - owner.height() / 4;
- newtop = min(newtop, int(text->first));
+ - owner.height() / 2; /* the scroll region must be so big!! */
+ }
+
+ } else if (static_cast<int>((text->cursor.y()) - row->baseline()) <
+ text->first_y && text->first_y > 0) {
+ if (row->height() < owner.height()
+ && row->height() > owner.height() / 4) {
+ newtop = text->cursor.y() - row->baseline();
+ } else {
+ // scroll up
+ newtop = text->cursor.y() - owner.height() / 2;
+ newtop = min(newtop, text->first_y);
}
}
/* scrolls the screen so that the cursor is visible, if necessary.
-* returns true if a change was made, otherwise false */
+* returns true if a change was made, otherwise false */
bool LyXScreen::fitCursor(LyXText * text, BufferView * bv)
{
// Is a change necessary?
int const newtop = topCursorVisible(text);
- bool const result = (newtop != text->first);
+ bool const result = (newtop != text->first_y);
if (result)
draw(text, bv, newtop);
return result;
}
-
+
void LyXScreen::update(LyXText * text, BufferView * bv,
int y_offset, int x_offset)
{
switch (text->status()) {
case LyXText::NEED_MORE_REFRESH:
{
- int const y = max(int(text->refresh_y - text->first), 0);
+ int const y = max(int(text->refresh_y - text->first_y), 0);
drawFromTo(text, bv, y, owner.height(), y_offset, x_offset);
text->refresh_y = 0;
- text->status(bv, LyXText::UNCHANGED);
+ // otherwise this is called ONLY from BufferView_pimpl(update)
+ // or we should see to set this flag accordingly
+ if (text != bv->text)
+ text->status(bv, LyXText::UNCHANGED);
expose(0, y, owner.workWidth(), owner.height() - y);
}
break;
// ok I will update the current cursor row
drawOneRow(text, bv, text->refresh_row, text->refresh_y,
y_offset, x_offset);
- text->status(bv, LyXText::UNCHANGED);
- expose(0, text->refresh_y - text->first + y_offset,
- owner.workWidth(), text->refresh_row->height());
+ // this because if we had a major update the refresh_row could
+ // have been set to 0!
+ if (text->refresh_row) {
+ // otherwise this is called ONLY from BufferView_pimpl(update)
+ // or we should see to set this flag accordingly
+ if (text != bv->text)
+ text->status(bv, LyXText::UNCHANGED);
+ expose(0, text->refresh_y - text->first_y + y_offset,
+ owner.workWidth(), text->refresh_row->height());
+ }
}
break;
case LyXText::CHANGED_IN_DRAW: // just to remove the warning
max(static_cast<int>(text->selection.end.y()
- text->selection.end.row()->baseline()
+ text->selection.end.row()->height()),
- text->first),
- static_cast<int>(text->first + owner.height()));
+ text->first_y),
+ static_cast<int>(text->first_y + owner.height()));
int const top = min(
max(static_cast<int>(text->selection.start.y() -
text->selection.start.row()->baseline()),
- text->first),
- static_cast<int>(text->first + owner.height()));
+ text->first_y),
+ static_cast<int>(text->first_y + owner.height()));
if (kill_selection)
text->selection.set(false);
- drawFromTo(text, bv, top - text->first, bottom - text->first,
+ drawFromTo(text, bv, top - text->first_y, bottom - text->first_y,
y_offset, x_offset);
- expose(0, top - text->first,
+ expose(0, top - text->first_y,
owner.workWidth(),
- bottom - text->first - (top - text->first));
+ bottom - text->first_y - (top - text->first_y));
}
-
-
+
+
void LyXScreen::toggleToggle(LyXText * text, BufferView * bv,
int y_offset, int x_offset)
{
if (text->toggle_cursor.par() == text->toggle_end_cursor.par()
&& text->toggle_cursor.pos() == text->toggle_end_cursor.pos())
return;
-
+
int const top_tmp = text->toggle_cursor.y()
- text->toggle_cursor.row()->baseline();
int const bottom_tmp = text->toggle_end_cursor.y()
- - text->toggle_end_cursor.row()->baseline()
+ - text->toggle_end_cursor.row()->baseline()
+ text->toggle_end_cursor.row()->height();
-
- int const bottom = min(max(bottom_tmp, text->first),
- static_cast<int>(text->first + owner.height()));
- int const top = min(max(top_tmp, text->first),
- static_cast<int>(text->first + owner.height()));
- drawFromTo(text, bv, top - text->first, bottom - text->first, y_offset,
+ int const offset = y_offset < 0 ? y_offset : 0;
+ int const bottom = min(max(bottom_tmp, text->first_y),
+ static_cast<int>(text->first_y + owner.height()))-offset;
+ int const top = min(max(top_tmp, text->first_y),
+ static_cast<int>(text->first_y + owner.height()))-offset;
+
+ drawFromTo(text, bv, top - text->first_y,
+ bottom - text->first_y, y_offset,
x_offset);
- expose(0, top - text->first, owner.workWidth(),
- bottom - text->first - (top - text->first));
+ expose(0, top - text->first_y, owner.workWidth(),
+ bottom - text->first_y - (top - text->first_y));
}
projects / lyx.git / blobdiff