]> git.lyx.org Git - lyx.git/blobdiff - src/screen.C
whitespace changes;
[lyx.git] / src / screen.C
index b0b5390e63661ea235cba889d04dc41ef76ea8de..c9590cf578aed6885ba16dd2624d9d7f9c37019b 100644 (file)
 #include "Painter.h"
 #include "WorkArea.h"
 #include "buffer.h"
+#include "BufferView.h"
 #include "font.h"
 #include "insets/insettext.h"
 #include "ColorHandler.h"
+#include "language.h"
 
 using std::max;
 using std::min;
 
-static
+namespace {
+
 GC createGC()
 {
        XGCValues val;
@@ -45,6 +48,8 @@ GC createGC()
                         | GCLineWidth | GCLineStyle , &val);
 }
 
+} // namespace anon
+
 
 // Constructor
 LyXScreen::LyXScreen(WorkArea & o)
@@ -63,9 +68,15 @@ LyXScreen::LyXScreen(WorkArea & o)
 }
 
 
+LyXScreen::~LyXScreen()
+{
+       XFreeGC(fl_get_display(), gc_copy);
+}
+
 void LyXScreen::setCursorColor() 
 {
-       if (!lyxColorHandler) return;
+       if (!lyxColorHandler.get()) return;
 
        GC gc = lyxColorHandler->getGCForeground(LColor::cursor);
        
@@ -76,13 +87,13 @@ void LyXScreen::setCursorColor()
 }
 
 
-void LyXScreen::Redraw(LyXText * text, BufferView * bv)
+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();
        }
 }
 
@@ -100,26 +111,33 @@ void LyXScreen::expose(int x, int y, int exp_width, int exp_height)
 }
 
 
-void LyXScreen::DrawFromTo(LyXText * text, BufferView * bv,
-                          int y1, int y2, int y_offset, int x_offset)
+void LyXScreen::drawFromTo(LyXText * text, BufferView * bv,
+                           int y1, int y2, int y_offset, int x_offset,
+                           bool internal)
 {
        int y_text = text->first + y1;
    
        // get the first needed row 
-       Row * row = text->GetRowNearY(y_text);
+       Row * row = text->getRowNearY(y_text);
        // y_text is now the real beginning of the row
    
        int y = y_text - text->first;
        // 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 = st;
-                       text->GetVisibleRow(bv, y + y_offset,
-                                           x_offset, row, y + text->first);
-               } while (bv->text->status == LyXText::CHANGED_IN_DRAW);
-               bv->text->status = st;
+               LyXText::text_status st = text->status();
+               text->getVisibleRow(bv, y + y_offset,
+                                   x_offset, row, y + text->first);
+               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);
+               }
                y += row->height();
                row = row->next();
        }
@@ -135,7 +153,7 @@ void LyXScreen::DrawFromTo(LyXText * text, BufferView * bv,
 }
 
 
-void LyXScreen::DrawOneRow(LyXText * text, BufferView * bv, Row * row,
+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;
@@ -143,32 +161,39 @@ void LyXScreen::DrawOneRow(LyXText * text, BufferView * bv, Row * row,
        if (((y + row->height()) > 0) &&
            ((y - row->height()) <= static_cast<int>(owner.height()))) {
                // ok there is something visible
-               LyXText::text_status st = bv->text->status;
+#if 0
+               LyXText::text_status st = bv->text->status();
                do {
-                       bv->text->status = st;
-                       text->GetVisibleRow(bv, y, x_offset, row,
+                       bv->text->status(bv, st);
+                       text->getVisibleRow(bv, y, x_offset, row,
                                            y + text->first);
-               } while (bv->text->status == LyXText::CHANGED_IN_DRAW);
-               bv->text->status = st;
+               } 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);
+#endif
        }
        force_clear = false;
 }
 
 
 /* draws the screen, starting with textposition y. uses as much already
-* printed pixels as possible */
-void LyXScreen::Draw(LyXText * text, BufferView * bv, unsigned int y)
+ * printed pixels as possible */
+void LyXScreen::draw(LyXText * text, BufferView * bv, unsigned int y)
 {
-       if (cursor_visible) HideCursor();
+       if (cursor_visible) hideCursor();
 
        int const old_first = text->first;
+       bool internal = (text == bv->text);
        text->first = y;
 
        // is any optimiziation possible?
        if ((y - old_first) < owner.height()
-           && (old_first - y) < owner.height()) {
+           && (old_first - y) < owner.height())
+       {
                if (text->first < old_first) {
-                       DrawFromTo(text, bv, 0, old_first - text->first);
+                       drawFromTo(text, bv, 0, old_first - text->first, 0, 0, internal);
                        XCopyArea (fl_get_display(),
                                   owner.getWin(),
                                   owner.getWin(),
@@ -185,9 +210,9 @@ void LyXScreen::Draw(LyXText * text, BufferView * bv, unsigned int y)
                               owner.workWidth(),
                               old_first - text->first);
                } else  {
-                       DrawFromTo(text, bv,
-                                  owner.height() + old_first - text->first,
-                                  owner.height());
+                       drawFromTo(text, bv,
+                                  owner.height() + old_first - text->first,
+                                  owner.height(), 0, 0, internal);
                        XCopyArea (fl_get_display(),
                                   owner.getWin(),
                                   owner.getWin(),
@@ -204,13 +229,13 @@ void LyXScreen::Draw(LyXText * text, BufferView * bv, unsigned int y)
                }
        } else {
                // make a dumb new-draw 
-               DrawFromTo(text, bv, 0, owner.height());
+               drawFromTo(text, bv, 0, owner.height(), 0, 0, internal);
                expose(0, 0, owner.workWidth(), owner.height());
        }
 }
 
 
-void LyXScreen::ShowCursor(LyXText const * text, BufferView const * bv)
+void LyXScreen::showCursor(LyXText const * text, BufferView const * bv)
 {
        if (!cursor_visible) {
                Cursor_Shape shape = BAR_SHAPE;
@@ -220,7 +245,7 @@ void LyXScreen::ShowCursor(LyXText const * text, BufferView const * bv)
                    != bv->buffer()->params.language->RightToLeft())
                        shape = (text->real_current_font.isVisibleRightToLeft())
                                ? REVERSED_L_SHAPE : L_SHAPE;
-               ShowManualCursor(text, 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);
@@ -229,7 +254,7 @@ void LyXScreen::ShowCursor(LyXText const * text, BufferView const * bv)
 
 
 /* returns true if first has changed, otherwise false */ 
-bool LyXScreen::FitManualCursor(LyXText * text, BufferView * bv,
+bool LyXScreen::fitManualCursor(LyXText * text, BufferView * bv,
                                int /*x*/, int y, int asc, int desc)
 {
        int newtop = text->first;
@@ -244,7 +269,7 @@ bool LyXScreen::FitManualCursor(LyXText * text, BufferView * bv,
        newtop = max(newtop, 0); // can newtop ever be < 0? (Lgb)
   
        if (newtop != static_cast<int>(text->first)) {
-               Draw(text, bv, newtop);
+               draw(text, bv, newtop);
                text->first = newtop;
                return true;
        }
@@ -252,7 +277,7 @@ bool LyXScreen::FitManualCursor(LyXText * text, BufferView * bv,
 }
 
 
-void LyXScreen::ShowManualCursor(LyXText const * text, int x, int y,
+void LyXScreen::showManualCursor(LyXText const * text, int x, int y,
                                 int asc, int desc, Cursor_Shape shape)
 {
        // Update the cursor color.
@@ -331,7 +356,7 @@ void LyXScreen::ShowManualCursor(LyXText const * text, int x, int y,
 }
 
 
-void LyXScreen::HideCursor()
+void LyXScreen::hideCursor()
 {
        if (!cursor_visible) return;
 
@@ -349,17 +374,17 @@ void LyXScreen::HideCursor()
 }
 
 
-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 */ 
-unsigned int LyXScreen::TopCursorVisible(LyXText const * text)
+unsigned int LyXScreen::topCursorVisible(LyXText const * text)
 {
        int newtop = text->first;
 
@@ -395,38 +420,48 @@ unsigned int LyXScreen::TopCursorVisible(LyXText const * text)
 
 /* scrolls the screen so that the cursor is visible, if necessary.
 * returns true if a change was made, otherwise false */ 
-bool LyXScreen::FitCursor(LyXText * text, BufferView * bv)
+bool LyXScreen::fitCursor(LyXText * text, BufferView * bv)
 {
        // Is a change necessary?
-       int const newtop = TopCursorVisible(text);
+       int const newtop = topCursorVisible(text);
        bool const result = (newtop != text->first);
        if (result)
-               Draw(text, bv, newtop);
+               draw(text, bv, newtop);
        return result;
 }
 
    
-void LyXScreen::Update(LyXText * text, BufferView * bv,
-                      int y_offset, int x_offset)
+void LyXScreen::update(LyXText * text, BufferView * bv,
+                       int y_offset, int x_offset)
 {
-       switch (text->status) {
+       switch (text->status()) {
        case LyXText::NEED_MORE_REFRESH:
        {
                int const y = max(int(text->refresh_y - text->first), 0);
-               DrawFromTo(text, bv, y, owner.height(), y_offset, x_offset);
+               drawFromTo(text, bv, y, owner.height(), y_offset, x_offset);
                text->refresh_y = 0;
-               text->status = 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;
        case LyXText::NEED_VERY_LITTLE_REFRESH:
        {
                // ok I will update the current cursor row
-               DrawOneRow(text, bv, text->refresh_row, text->refresh_y,
+               drawOneRow(text, bv, text->refresh_row, text->refresh_y,
                           y_offset, x_offset);
-               text->status = 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_offset,
+                                  owner.workWidth(), text->refresh_row->height());
+               }
        }
        break;
        case LyXText::CHANGED_IN_DRAW: // just to remove the warning
@@ -437,28 +472,28 @@ void LyXScreen::Update(LyXText * text, BufferView * bv,
 }
 
 
-void LyXScreen::ToggleSelection(LyXText * text, BufferView * bv,
+void LyXScreen::toggleSelection(LyXText * text, BufferView * bv,
                                bool kill_selection,
                                int y_offset, int x_offset)
 {
        // only if there is a selection
-       if (!text->selection) return;
+       if (!text->selection.set()) return;
 
        int const bottom = min(
-               max(static_cast<int>(text->sel_end_cursor.y()
-                                    - text->sel_end_cursor.row()->baseline()
-                                    + text->sel_end_cursor.row()->height()),
+               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()));
        int const top = min(
-               max(static_cast<int>(text->sel_start_cursor.y() -
-                                    text->sel_start_cursor.row()->baseline()),
+               max(static_cast<int>(text->selection.start.y() -
+                                    text->selection.start.row()->baseline()),
                    text->first),
                static_cast<int>(text->first + owner.height()));
 
        if (kill_selection)
-               text->selection = 0;
-       DrawFromTo(text, bv, top - text->first, bottom - text->first,
+               text->selection.set(false);
+       drawFromTo(text, bv, top - text->first, bottom - text->first,
                   y_offset, x_offset);
        expose(0, top - text->first,
               owner.workWidth(),
@@ -466,7 +501,7 @@ void LyXScreen::ToggleSelection(LyXText * text, BufferView * bv,
 }
   
    
-void LyXScreen::ToggleToggle(LyXText * text, BufferView * bv,
+void LyXScreen::toggleToggle(LyXText * text, BufferView * bv,
                             int y_offset, int x_offset)
 {
        if (text->toggle_cursor.par() == text->toggle_end_cursor.par()
@@ -484,7 +519,7 @@ void LyXScreen::ToggleToggle(LyXText * text, BufferView * bv,
        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,
+       drawFromTo(text, bv, top - text->first, bottom - text->first, y_offset,
                   x_offset);
        expose(0, top - text->first, owner.workWidth(),
               bottom - text->first - (top - text->first));