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Bug 294327 - [terminal][regression] After logging in, the remote prompt is hidden

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This commit is contained in:
Martin Oberhuber 2009-11-08 23:00:57 +00:00
parent 6b1f4a6d9e
commit 016c5975c6
2 changed files with 35 additions and 12 deletions
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2
releng/org.eclipse.rse.build/maps/terminal.map
View file

@ -5,7 +5,7 @@ feature@org.eclipse.tm.terminal.ssh=v200905272300,:pserver:anonymous:none@dev.ec
feature@org.eclipse.tm.terminal.telnet=v200907301400,:pserver:anonymous:none@dev.eclipse.org:/cvsroot/dsdp,,org.eclipse.tm.core/terminal/org.eclipse.tm.terminal.telnet-feature
feature@org.eclipse.tm.terminal.test=v200905272300,:pserver:anonymous:none@dev.eclipse.org:/cvsroot/dsdp,,org.eclipse.tm.core/terminal/org.eclipse.tm.terminal.test-feature
feature@org.eclipse.tm.terminal.view=v200907301400,:pserver:anonymous:none@dev.eclipse.org:/cvsroot/dsdp,,org.eclipse.tm.core/terminal/org.eclipse.tm.terminal.view-feature
plugin@org.eclipse.tm.terminal=v200907301400,:pserver:anonymous:none@dev.eclipse.org:/cvsroot/dsdp,,org.eclipse.tm.core/terminal/org.eclipse.tm.terminal
plugin@org.eclipse.tm.terminal=v200911082200,:pserver:anonymous:none@dev.eclipse.org:/cvsroot/dsdp,,org.eclipse.tm.core/terminal/org.eclipse.tm.terminal
plugin@org.eclipse.tm.terminal.serial=v200905272300,:pserver:anonymous:none@dev.eclipse.org:/cvsroot/dsdp,,org.eclipse.tm.core/terminal/org.eclipse.tm.terminal.serial
plugin@org.eclipse.tm.terminal.ssh=v200905272300,:pserver:anonymous:none@dev.eclipse.org:/cvsroot/dsdp,,org.eclipse.tm.core/terminal/org.eclipse.tm.terminal.ssh
plugin@org.eclipse.tm.terminal.telnet=v200909160005,:pserver:anonymous:none@dev.eclipse.org:/cvsroot/dsdp,,org.eclipse.tm.core/terminal/org.eclipse.tm.terminal.telnet

45
terminal/org.eclipse.tm.terminal/src/org/eclipse/tm/internal/terminal/textcanvas/TextCanvas.java
View file

@ -42,6 +42,30 @@ public class TextCanvas extends GridCanvas {
private Point fDraggingEnd;
private boolean fHasSelection;
private ResizeListener fResizeListener;
// The minSize is meant to determine the minimum size of the backing store
// (grid) into which remote data is rendered. If the viewport is smaller
// than that minimum size, the backing store size remains at the minSize,
// and a scrollbar is shown instead. In reality, this has the following
// issues or effects today:
// (a) Bug 281328: For very early data coming in before the widget is
// realized, the minSize determines into what initial grid that is
// rendered. See also @link{#addResizeHandler(ResizeListener)}.
// (b) Bug 294468: Since we have redraw and size computation problems
// with horizontal scrollers, for now the minColumns must be small
// enough to avoid a horizontal scroller appearing in most cases.
// (b) Bug 294327: since we have problems with the vertical scroller
// showing the correct location, minLines must be small enough
// to avoid a vertical scroller or new data may be rendered off-screen.
// As a compromise, we have been working with a 20x4 since the Terminal
// inception, though many users would want a 80x24 minSize and backing
// store. Pros and cons of the small minsize:
// + consistent "remote size==viewport size", vi works as expected
// - dumb terminals which expect 80x24 render garbled on small viewport.
// If bug 294468 were resolved, an 80 wide minSize would be preferrable
// since it allows switching the terminal viewport small/large as needed,
// without destroying the backing store. For a complete solution,
// Bug 196462 tracks the request for a user-defined fixed-widow-size-mode.
private int fMinColumns=20;
private int fMinLines=4;
private boolean fCursorEnabled;
@ -304,18 +328,17 @@ public class TextCanvas extends GridCanvas {
// Bug 281328: [terminal] The very first few characters might be missing in
// the terminal control if opened and connected programmatically
//
// In case the terminal had not been visible yet or is to small (less than one
// In case the terminal had not been visible yet or is too small (less than one
// line visible), the terminal should have a minimum size to avoid RuntimeExceptions.
//
// Bug 294327: Min lines 1 is sufficient to avoid the exception, and ensures
// that on a new connection, the initial prompt is visible.
// MinColumns was changed from 20 to 80 in TM 3.1.1 -- Having MinColumns 80
// ensures that dumb terminals render properly. On a narrow Terminal, users
// will not see everything, but since the backing store is 80 wide they can
// always resize the terminal to see all. A better solution than guessing the
// MinColumns here should be implemented with bug 196462 (optional fixed-width).
setMinColumns(80); setMinLines(1);
onResize(true);
Rectangle bonds=getClientArea();
if (bonds.height<getCellHeight() || bonds.width<getCellWidth()) {
//Widget not realized yet, or minimized to < 1 item:
//Just tell the listener our min size
fResizeListener.sizeChanged(getMinLines(), getMinColumns());
} else {
//Widget realized: compute actual size and force telling the listener
onResize(true);
}
}
public void onFontChange() {