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dwrite: Set baseline origin Y for reported runs.

This commit is contained in:
Nikolay Sivov 2015-06-22 11:56:25 +03:00 committed by Alexandre Julliard
parent 88663caf74
commit 643125e50f
1 changed files with 67 additions and 6 deletions
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73
dlls/dwrite/layout.c
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@ -181,6 +181,7 @@ struct layout_effective_run {
FLOAT origin_x; /* baseline X position */
FLOAT origin_y; /* baseline Y position */
UINT16 *clustermap; /* effective clustermap, allocated separately, is not reused from nominal map */
UINT32 line;
};
struct layout_effective_inline {
@ -191,6 +192,7 @@ struct layout_effective_inline {
FLOAT origin_y;
BOOL is_sideways;
BOOL is_rtl;
UINT32 line;
};
struct layout_strikethrough {
@ -906,7 +908,7 @@ static inline IUnknown *layout_get_effect_from_pos(struct dwrite_textlayout *lay
/* Effective run is built from consecutive clusters of a single nominal run, 'first_cluster' is 0 based cluster index,
'cluster_count' indicates how many clusters to add, including first one. */
static HRESULT layout_add_effective_run(struct dwrite_textlayout *layout, const struct layout_run *r, UINT32 first_cluster,
UINT32 cluster_count, FLOAT origin_x, BOOL strikethrough)
UINT32 cluster_count, UINT32 line, FLOAT origin_x, BOOL strikethrough)
{
UINT32 i, start, length, last_cluster;
struct layout_effective_run *run;
@ -926,6 +928,7 @@ static HRESULT layout_add_effective_run(struct dwrite_textlayout *layout, const
different ranges which differ in reading direction). */
inlineobject->is_sideways = FALSE;
inlineobject->is_rtl = FALSE;
inlineobject->line = line;
/* effect assigned from start position and on is used for inline objects */
inlineobject->effect = layout_get_effect_from_pos(layout, layout->clusters[first_cluster].position);
@ -954,7 +957,8 @@ static HRESULT layout_add_effective_run(struct dwrite_textlayout *layout, const
run->start = start = layout->clusters[first_cluster].position;
run->length = length;
run->origin_x = origin_x;
run->origin_y = 0.0; /* FIXME: set after line is built */
run->origin_y = 0.0; /* set after line is built */
run->line = line;
if (r->u.regular.run.glyphCount) {
/* trim from the left */
@ -1039,11 +1043,41 @@ static inline BOOL layout_get_strikethrough_from_pos(struct dwrite_textlayout *l
return ((struct layout_range_bool*)h)->value;
}
static inline struct layout_effective_run *layout_get_next_erun(struct dwrite_textlayout *layout,
const struct layout_effective_run *cur)
{
struct list *e;
if (!cur)
e = list_head(&layout->eruns);
else
e = list_next(&layout->eruns, &cur->entry);
if (!e)
return NULL;
return LIST_ENTRY(e, struct layout_effective_run, entry);
}
static inline struct layout_effective_inline *layout_get_next_inline_run(struct dwrite_textlayout *layout,
const struct layout_effective_inline *cur)
{
struct list *e;
if (!cur)
e = list_head(&layout->inlineobjects);
else
e = list_next(&layout->inlineobjects, &cur->entry);
if (!e)
return NULL;
return LIST_ENTRY(e, struct layout_effective_inline, entry);
}
static HRESULT layout_compute_effective_runs(struct dwrite_textlayout *layout)
{
DWRITE_LINE_METRICS metrics;
struct layout_effective_inline *inrun;
struct layout_effective_run *erun;
const struct layout_run *run;
FLOAT width, origin_x;
DWRITE_LINE_METRICS metrics;
FLOAT width, origin_x, origin_y;
UINT32 i, start, line, textpos;
HRESULT hr;
BOOL s[2];
@ -1070,7 +1104,7 @@ static HRESULT layout_compute_effective_runs(struct dwrite_textlayout *layout)
/* switched to next nominal run, at this point all previous pending clusters are already
checked for layout line overflow, so new effective run will fit in current line */
if (run != layout->clusters[i].run || s[0] != s[1]) {
hr = layout_add_effective_run(layout, run, start, i - start, origin_x, s[0]);
hr = layout_add_effective_run(layout, run, start, i - start, line, origin_x, s[0]);
if (FAILED(hr))
return hr;
origin_x += get_cluster_range_width(layout, start, i);
@ -1096,7 +1130,7 @@ static HRESULT layout_compute_effective_runs(struct dwrite_textlayout *layout)
last_cluster = i ? i - 1 : i;
if (i >= start) {
hr = layout_add_effective_run(layout, run, start, i - start + 1, origin_x, s[0]);
hr = layout_add_effective_run(layout, run, start, i - start + 1, line, origin_x, s[0]);
if (FAILED(hr))
return hr;
/* we don't need to update origin for next run as we're going to wrap */
@ -1165,6 +1199,33 @@ static HRESULT layout_compute_effective_runs(struct dwrite_textlayout *layout)
}
layout->line_count = line;
/* Now all line info is here, update effective runs positions in flow direction */
erun = layout_get_next_erun(layout, NULL);
inrun = layout_get_next_inline_run(layout, NULL);
origin_y = 0.0;
for (line = 0; line < layout->line_count; line++) {
origin_y += layout->lines[line].baseline;
/* For all runs on this line */
while (erun && erun->line == line) {
erun->origin_y = origin_y;
erun = layout_get_next_erun(layout, erun);
if (!erun)
break;
}
/* Same for inline runs */
while (inrun && inrun->line == line) {
inrun->origin_y = origin_y;
inrun = layout_get_next_inline_run(layout, inrun);
if (!inrun)
break;
}
}
layout->recompute &= ~RECOMPUTE_EFFECTIVE_RUNS;
return hr;
}