The branch, str-metrics, has been updated.
- Log -----------------------------------------------------------------
commit 1e5631f5e839d99da2413f1b2ef22ddc31ec6966
Author: Jean-Marc Lasgouttes <lasgout...@lyx.org>
Date: Tue Jun 18 10:18:32 2013 +0200
Add a readme file describing the state of the branch
diff --git a/00README_STR_METRICS_BRANCH b/00README_STR_METRICS_BRANCH
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+This branch is where I (jmarc) try to implement string_wise metrics
+computation. This is done through a series of cleanups. The expected
+speed improvement will only be visible at the end of the road: indeed
+for now we intend to keep unchanged behavior for testing purposes.
+
+What is done:
+* Make TextMetrics methods operate on Row objects: breakRow and
+setRowHeight instead of rowBreakPoint and rowHeight.
+* change breakRow operation to operate on text strings on which
+metrics are computed. Note that for now FontMetrics::width(docstring)
+still computes the sum of character widths, so that behavior is
+unchanged.
+
+Next steps:
+* Make breakRow build a list of elements (string, inset,
+separator,...) in the row. This will be reused by other methods
+* get rid of rowWidth (breakRow does compute this)
+* re-implement getColumnNearX using row elements
+* re-implement x2pos using row elements
+* re-implement row painting using row elements
+* Finally, implement proper string metrics computation (with cache)
+* profile and see how performance can be improved.
+
+Difference in behavior
+* words longer than the screen are no monger broken at an arbitrary
+point. This will not be useful anymore with horizontal scrolling.
+* end of paragraph markers metrics are computed with the font of the
+actual text, not default font. This will be extended to the other
+methods.
+
+The other differences should be considered as bugs.
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Summary of changes:
00README_STR_METRICS_BRANCH | 31 +++++++++++++++++++++++++++++++
1 files changed, 31 insertions(+), 0 deletions(-)
create mode 100644 00README_STR_METRICS_BRANCH
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