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Diffstat (limited to 'tests/textDisp.test')
| -rw-r--r-- | tests/textDisp.test | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/tests/textDisp.test b/tests/textDisp.test index 44a45b2..12a20c6 100644 --- a/tests/textDisp.test +++ b/tests/textDisp.test @@ -1152,6 +1152,41 @@ test textDisp-8.11 {TkTextChanged, scrollbar notification when changes are off-s .t configure -yscrollcommand "" set scrollInfo } {0.0 0.625} +test textDisp-8.12 {TkTextChanged, moving the insert cursor redraws only past and new lines} { + .t delete 1.0 end + .t configure -wrap none + for {set i 1} {$i < 25} {incr i} { + .t insert end "Line $i Line $i\n" + } + .t tag add hidden 5.0 8.0 + .t tag configure hidden -elide true + .t mark set insert 9.0 + update + .t mark set insert 8.0 ; # up one line + update + set res [list $tk_textRedraw] + .t mark set insert 12.2 ; # in the visible text + update + lappend res $tk_textRedraw + .t mark set insert 6.5 ; # in the hidden text + update + lappend res $tk_textRedraw + .t mark set insert 3.5 ; # in the visible text again + update + lappend res $tk_textRedraw + .t mark set insert 3.8 ; # within the same line + update + lappend res $tk_textRedraw + # This last one is tricky: correct result really is {2.0 3.0} when + # calling .t mark set insert, two calls to TkTextChanged are done: + # (a) to redraw the line of the past position of the cursor + # (b) to redraw the line of the new position of the cursor + # During (a) the display line showing the cursor gets unlinked, + # which leads TkTextChanged in (b) to schedule a redraw starting + # one line _before_ the line containing the insert cursor. This is + # because during (b) findDLine cannot return the display line the + # cursor is in since this display line was just unlinked in (a). +} {{8.0 9.0} {8.0 12.0} {8.0 12.0} {3.0 8.0} {2.0 3.0}} test textDisp-9.1 {TkTextRedrawTag} { .t configure -wrap char |