#include "WorkArea.h"
#include "buffer.h"
#include "font.h"
+#include "insets/insettext.h"
using std::max;
using std::min;
// Constructor
LyXScreen::LyXScreen(WorkArea & o) //, LyXText * text_ptr)
- : owner(o) //, text(text_ptr)
+ : owner(o), force_clear(true) //, text(text_ptr)
{
- first = 0;
-
// the cursor isnt yet visible
cursor_visible = false;
cursor_pixmap = 0;
}
-void LyXScreen::DrawFromTo(LyXText * text, int y1, int y2)
+void LyXScreen::DrawFromTo(LyXText * text, int y1, int y2, int y_offset, int x_offset)
{
- long y_text = first + y1;
+ long y_text = text->first + y1;
// get the first needed row
Row * row = text->GetRowNearY(y_text);
// y_text is now the real beginning of the row
- long y = y_text - first;
+ long y = y_text - text->first;
// y1 is now the real beginning of row on the screen
while (row != 0 && y < y2) {
- text->GetVisibleRow(owner.owner(), y, 0, row, y + first);
+ LyXText::text_status st = text->status;
+ do {
+ text->status = st;
+ text->GetVisibleRow(owner.owner(), y+y_offset,
+ x_offset, row, y + text->first);
+ } while (text->status == LyXText::CHANGED_IN_DRAW);
+ text->status = st;
y += row->height();
row = row->next();
}
-
+ force_clear = false;
+
// maybe we have to clear the screen at the bottom
- if (y < y2) {
+ if ((y < y2) && text->bv_owner) {
owner.getPainter().fillRectangle(0, y,
owner.workWidth(),
y2 - y,
}
-void LyXScreen::DrawOneRow(LyXText * text, Row * row, long y_text)
+void LyXScreen::DrawOneRow(LyXText * text, Row * row, long y_text,
+ int y_offset, int x_offset)
{
- long y = y_text - first;
+ long y = y_text - text->first + y_offset;
if (y + row->height() > 0
&& y - row->height() <= long(owner.height())) {
// ok there is something visible
- text->GetVisibleRow(owner.owner(), y, 0, row, y + first);
+ LyXText::text_status st = text->status;
+ do {
+ text->status = st;
+ text->GetVisibleRow(owner.owner(), y, x_offset, row,
+ y + text->first);
+ } while (text->status == LyXText::CHANGED_IN_DRAW);
+ text->status = st;
}
+ force_clear = false;
}
{
if (cursor_visible) HideCursor();
- unsigned long old_first = first;
- first = y;
+ unsigned long old_first = text->first;
+ text->first = y;
// is any optimiziation possible?
if ((y - old_first) < owner.height()
&& (old_first - y) < owner.height()) {
- if (first < old_first) {
- DrawFromTo(text, 0, old_first - first);
+ if (text->first < old_first) {
+ DrawFromTo(text, 0, old_first - text->first);
XCopyArea (fl_display,
owner.getWin(),
owner.getWin(),
owner.xpos(),
owner.ypos(),
owner.workWidth(),
- owner.height() - old_first + first,
+ owner.height() - old_first + text->first,
owner.xpos(),
- owner.ypos() + old_first - first
+ owner.ypos() + old_first - text->first
);
// expose the area drawn
expose(0, 0,
owner.workWidth(),
- old_first - first);
+ old_first - text->first);
} else {
DrawFromTo(text,
- owner.height() + old_first - first,
+ owner.height() + old_first - text->first,
owner.height());
XCopyArea (fl_display,
owner.getWin(),
owner.getWin(),
gc_copy,
owner.xpos(),
- owner.ypos() + first - old_first,
+ owner.ypos() + text->first - old_first,
owner.workWidth(),
- owner.height() + old_first - first,
+ owner.height() + old_first - text->first,
owner.xpos(),
owner.ypos());
// expose the area drawn
- expose(0, owner.height() + old_first - first,
- owner.workWidth(), first - old_first);
+ expose(0, owner.height() + old_first - text->first,
+ owner.workWidth(), text->first - old_first);
}
} else {
// make a dumb new-draw
!= owner.owner()->buffer()->params.language_info->RightToLeft())
shape = (text->real_current_font.isVisibleRightToLeft())
? REVERSED_L_SHAPE : L_SHAPE;
- ShowManualCursor(text->cursor.x(), text->cursor.y(),
+ ShowManualCursor(text, text->cursor.x(), text->cursor.y(),
lyxfont::maxAscent(text->real_current_font),
lyxfont::maxDescent(text->real_current_font),
shape);
bool LyXScreen::FitManualCursor(LyXText * text,
long /*x*/, long y, int asc, int desc)
{
- long newtop = first;
+ long newtop = text->first;
- if (y + desc - first >= owner.height())
+ if (y + desc - text->first >= owner.height())
newtop = y - 3 * owner.height() / 4; // the scroll region must be so big!!
- else if (y - asc < long(first)
- && first > 0) {
+ else if (y - asc < long(text->first)
+ && text->first > 0) {
newtop = y - owner.height() / 4;
}
newtop = max(newtop, 0L); // can newtop ever be < 0? (Lgb)
- if (newtop != long(first)) {
+ if (newtop != long(text->first)) {
Draw(text, newtop);
- first = newtop;
+ text->first = newtop;
return true;
}
return false;
}
-void LyXScreen::ShowManualCursor(long x, long y, int asc, int desc,
- Cursor_Shape shape)
+void LyXScreen::ShowManualCursor(LyXText const * text, long x, long y,
+ int asc, int desc, Cursor_Shape shape)
{
- unsigned long y1 = max(y - first - asc, 0UL);
+ unsigned long y1 = max(y - text->first - asc, 0UL);
typedef unsigned long ulong;
- unsigned long y2 = min(y - first + desc, ulong(owner.height()));
+ unsigned long y2 = min(y - text->first + desc, ulong(owner.height()));
// Secure against very strange situations
y2 = max(y2, y1);
/* returns a new top so that the cursor is visible */
unsigned long LyXScreen::TopCursorVisible(LyXText const * text)
{
- long newtop = first;
+ long newtop = text->first;
if (text->cursor.y()
- text->cursor.row()->baseline()
+ text->cursor.row()->height()
- - first >= owner.height()) {
+ - text->first >= owner.height()) {
if (text->cursor.row()->height() < owner.height()
&& text->cursor.row()->height() > owner.height() / 4)
newtop = text->cursor.y()
else
newtop = text->cursor.y()
- 3 * owner.height() / 4; /* the scroll region must be so big!! */
- } else if (text->cursor.y() - text->cursor.row()->baseline() < first
- && first > 0) {
+ } else if (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, long(first));
+ newtop = min(newtop, long(text->first));
}
}
{
// Is a change necessary?
unsigned long newtop = TopCursorVisible(text);
- bool result = (newtop != first);
+ bool result = (newtop != text->first);
if (result)
Draw(text, newtop);
return result;
}
-void LyXScreen::Update(LyXText * text)
+void LyXScreen::Update(LyXText * text, int y_offset, int x_offset)
{
switch(text->status) {
case LyXText::NEED_MORE_REFRESH:
{
- long y = max(text->refresh_y - long(first), 0L);
-
- DrawFromTo(text, y, owner.height());
+ long y = max(text->refresh_y - long(text->first), 0L);
+ int height;
+ if (text->inset_owner)
+ height = text->inset_owner->ascent(owner.owner(),
+ text->real_current_font)
+ + text->inset_owner->descent(owner.owner(),
+ text->real_current_font);
+ else
+ height = owner.height();
+ DrawFromTo(text, y, owner.height(), y_offset, x_offset);
text->refresh_y = 0;
text->status = LyXText::UNCHANGED;
expose(0, y,
case LyXText::NEED_VERY_LITTLE_REFRESH:
{
// ok I will update the current cursor row
- DrawOneRow(text, text->refresh_row, text->refresh_y);
+ DrawOneRow(text, text->refresh_row, text->refresh_y,
+ y_offset, x_offset);
text->status = LyXText::UNCHANGED;
- expose(0, text->refresh_y - first,
+ expose(0, text->refresh_y - text->first + y_offset,
owner.workWidth(), text->refresh_row->height());
}
break;
+ case LyXText::CHANGED_IN_DRAW: // just to remove the warning
case LyXText::UNCHANGED:
// Nothing needs done
break;
}
-void LyXScreen::ToggleSelection(LyXText * text, bool kill_selection)
+void LyXScreen::ToggleSelection(LyXText * text, bool kill_selection,
+ int y_offset, int x_offset)
{
// only if there is a selection
if (!text->selection) return;
long bottom = min(max(text->sel_end_cursor.y()
- text->sel_end_cursor.row()->baseline()
- + text->sel_end_cursor.row()->height(), first),
- first + owner.height());
+ + text->sel_end_cursor.row()->height(), text->first),
+ text->first + owner.height());
long top = min(max(text->sel_start_cursor.y()
- - text->sel_start_cursor.row()->baseline(), first),
- first + owner.height());
+ - text->sel_start_cursor.row()->baseline(), text->first),
+ text->first + owner.height());
if (kill_selection)
text->selection = 0;
- DrawFromTo(text, top - first, bottom - first);
- expose(0, top - first,
+ DrawFromTo(text, top - text->first, bottom - text->first,
+ y_offset, x_offset);
+ expose(0, top - text->first,
owner.workWidth(),
- bottom - first - (top - first));
+ bottom - text->first - (top - text->first));
}
-void LyXScreen::ToggleToggle(LyXText * text)
+void LyXScreen::ToggleToggle(LyXText * text, 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())
typedef unsigned long ulong;
- bottom = min(max(ulong(bottom), first), first + owner.height());
- top = min(max(ulong(top), first), first + owner.height());
-
- DrawFromTo(text, top - first, bottom - first);
- expose(0, top - first, owner.workWidth(),
- bottom - first - (top - first));
+ bottom = min(max(ulong(bottom), text->first), text->first + owner.height());
+ top = min(max(ulong(top), text->first), text->first + owner.height());
+
+ DrawFromTo(text, top - text->first, bottom - text->first, y_offset,
+ x_offset);
+ expose(0, top - text->first, owner.workWidth(),
+ bottom - text->first - (top - text->first));
}
projects / lyx.git / blobdiff