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dwrite: Added support for uniform and proportional spacing methods. 

Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Nikolay Sivov 2017-02-02 02:11:35 +03:00 committed by Alexandre Julliard
parent 3c494e82e3
commit cb0b088551
2 changed files with 104 additions and 40 deletions
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142
dlls/dwrite/layout.c
View File

@ -1316,6 +1316,8 @@ static HRESULT layout_add_effective_run(struct dwrite_textlayout *layout, const
static HRESULT layout_set_line_metrics(struct dwrite_textlayout *layout, DWRITE_LINE_METRICS1 *metrics)
{
UINT32 i = layout->metrics.lineCount;
if (!layout->line_alloc) {
layout->line_alloc = 5;
layout->linemetrics = heap_alloc(layout->line_alloc * sizeof(*layout->linemetrics));
@ -1344,9 +1346,28 @@ static HRESULT layout_set_line_metrics(struct dwrite_textlayout *layout, DWRITE_
layout->line_alloc *= 2;
}
layout->linemetrics[layout->metrics.lineCount] = *metrics;
layout->lines[layout->metrics.lineCount].height = metrics->height;
layout->lines[layout->metrics.lineCount].baseline = metrics->baseline;
layout->linemetrics[i] = *metrics;
switch (layout->format.spacing.method)
{
case DWRITE_LINE_SPACING_METHOD_UNIFORM:
if (layout->format.spacing.method == DWRITE_LINE_SPACING_METHOD_UNIFORM) {
layout->linemetrics[i].height = layout->format.spacing.height;
layout->linemetrics[i].baseline = layout->format.spacing.baseline;
}
break;
case DWRITE_LINE_SPACING_METHOD_PROPORTIONAL:
if (layout->format.spacing.method == DWRITE_LINE_SPACING_METHOD_UNIFORM) {
layout->linemetrics[i].height = layout->format.spacing.height * metrics->height;
layout->linemetrics[i].baseline = layout->format.spacing.baseline * metrics->baseline;
}
break;
default:
/* using content values */;
}
layout->lines[i].height = metrics->height;
layout->lines[i].baseline = metrics->baseline;
layout->metrics.lineCount++;
return S_OK;
@ -1604,17 +1625,19 @@ static void layout_apply_par_alignment(struct dwrite_textlayout *layout)
erun = layout_get_next_erun(layout, NULL);
inrun = layout_get_next_inline_run(layout, NULL);
for (line = 0; line < layout->metrics.lineCount; line++) {
origin_y += layout->linemetrics[line].baseline;
FLOAT pos_y = origin_y + layout->linemetrics[line].baseline;
while (erun && erun->line == line) {
erun->origin_y = origin_y;
erun->origin_y = pos_y;
erun = layout_get_next_erun(layout, erun);
}
while (inrun && inrun->line == line) {
inrun->origin_y = origin_y - inrun->baseline;
inrun->origin_y = pos_y - inrun->baseline;
inrun = layout_get_next_inline_run(layout, inrun);
}
origin_y += layout->linemetrics[line].height;
}
}
@ -1890,6 +1913,42 @@ static void layout_add_line(struct dwrite_textlayout *layout, UINT32 first_clust
*textpos += metrics.length;
}
static void layout_set_line_positions(struct dwrite_textlayout *layout)
{
struct layout_effective_inline *inrun;
struct layout_effective_run *erun;
FLOAT origin_y;
UINT32 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);
for (line = 0, origin_y = 0.0f; line < layout->metrics.lineCount; line++) {
FLOAT pos_y = origin_y + layout->linemetrics[line].baseline;
/* For all runs on this line */
while (erun && erun->line == line) {
erun->origin_y = pos_y;
erun = layout_get_next_erun(layout, erun);
}
/* Same for inline runs */
while (inrun && inrun->line == line) {
inrun->origin_y = pos_y - inrun->baseline;
inrun = layout_get_next_inline_run(layout, inrun);
}
origin_y += layout->linemetrics[line].height;
}
layout->metrics.height = origin_y;
/* Initial paragraph alignment is always near */
if (layout->format.paralign != DWRITE_PARAGRAPH_ALIGNMENT_NEAR)
layout_apply_par_alignment(layout);
}
static BOOL layout_can_wrap_after(const struct dwrite_textlayout *layout, UINT32 cluster)
{
if (layout->format.wrapping == DWRITE_WORD_WRAPPING_CHARACTER)
@ -1902,10 +1961,10 @@ static HRESULT layout_compute_effective_runs(struct dwrite_textlayout *layout)
{
BOOL is_rtl = layout->format.readingdir == DWRITE_READING_DIRECTION_RIGHT_TO_LEFT;
struct layout_effective_run *erun, *first_underlined;
UINT32 i, start, line, textpos, last_breaking_point;
struct layout_effective_inline *inrun;
FLOAT width, origin_y;
UINT32 i, start, textpos, last_breaking_point;
DWRITE_LINE_METRICS1 metrics;
FLOAT width;
UINT32 line;
HRESULT hr;
if (!(layout->recompute & RECOMPUTE_LINES))
@ -1918,7 +1977,6 @@ static HRESULT layout_compute_effective_runs(struct dwrite_textlayout *layout)
return hr;
layout->metrics.lineCount = 0;
line = 0;
memset(&metrics, 0, sizeof(metrics));
layout->metrics.height = 0.0f;
@ -1971,7 +2029,6 @@ static HRESULT layout_compute_effective_runs(struct dwrite_textlayout *layout)
- there's no text, metrics come from first range in this case;
- last ended with a mandatory break, metrics come from last text position.
*/
line = layout->metrics.lineCount - 1;
if (layout->len == 0)
hr = layout_set_dummy_line_metrics(layout, 0);
else if (layout->clustermetrics[layout->cluster_count - 1].isNewline)
@ -1983,20 +2040,11 @@ static HRESULT layout_compute_effective_runs(struct dwrite_textlayout *layout)
layout->metrics.top = 0.0f;
layout->metrics.maxBidiReorderingDepth = 1; /* FIXME */
/* Now all line info is here, update effective runs positions in flow direction */
/* Add explicit underlined runs */
erun = layout_get_next_erun(layout, NULL);
first_underlined = erun && erun->underlined ? erun : NULL;
inrun = layout_get_next_inline_run(layout, NULL);
origin_y = 0.0f;
for (line = 0; line < layout->metrics.lineCount; line++) {
origin_y += layout->linemetrics[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 (first_underlined && (!erun || !erun->underlined)) {
@ -2006,28 +2054,15 @@ static HRESULT layout_compute_effective_runs(struct dwrite_textlayout *layout)
else if (!first_underlined && erun && erun->underlined)
first_underlined = erun;
}
/* Same for inline runs */
while (inrun && inrun->line == line) {
inrun->origin_y = origin_y - inrun->baseline;
inrun = layout_get_next_inline_run(layout, inrun);
}
}
/* Use last line origin y + line descent as total content height */
line--;
layout->metrics.height = origin_y + layout->linemetrics[line].height - layout->linemetrics[line].baseline;
/* Position runs in flow direction */
layout_set_line_positions(layout);
/* Initial alignment is always leading */
if (layout->format.textalignment != DWRITE_TEXT_ALIGNMENT_LEADING)
layout_apply_text_alignment(layout);
/* Initial paragraph alignment is always near */
if (layout->format.paralign != DWRITE_PARAGRAPH_ALIGNMENT_NEAR)
layout_apply_par_alignment(layout);
layout->metrics.heightIncludingTrailingWhitespace = layout->metrics.height; /* FIXME: not true for vertical text */
layout->recompute &= ~RECOMPUTE_LINES;
return hr;
}
@ -3880,8 +3915,39 @@ static HRESULT WINAPI dwritetextlayout3_SetLineSpacing(IDWriteTextLayout3 *iface
if (FAILED(hr))
return hr;
if (changed)
This->recompute |= RECOMPUTE_LINES_AND_OVERHANGS;
if (changed) {
if (!(This->recompute & RECOMPUTE_LINES)) {
UINT32 line;
switch (This->format.spacing.method)
{
case DWRITE_LINE_SPACING_METHOD_DEFAULT:
for (line = 0; line < This->metrics.lineCount; line++) {
This->linemetrics[line].height = This->lines[line].height;
This->linemetrics[line].baseline = This->lines[line].baseline;
}
break;
case DWRITE_LINE_SPACING_METHOD_UNIFORM:
for (line = 0; line < This->metrics.lineCount; line++) {
This->linemetrics[line].height = This->format.spacing.height;
This->linemetrics[line].baseline = This->format.spacing.baseline;
}
break;
case DWRITE_LINE_SPACING_METHOD_PROPORTIONAL:
for (line = 0; line < This->metrics.lineCount; line++) {
This->linemetrics[line].height = This->format.spacing.height * This->lines[line].height;
This->linemetrics[line].baseline = This->format.spacing.baseline * This->lines[line].baseline;
}
break;
default:
;
}
layout_set_line_positions(This);
}
This->recompute |= RECOMPUTE_OVERHANGS;
}
return S_OK;
}

2
dlls/dwrite/tests/layout.c
View File

@ -3633,11 +3633,9 @@ static void test_GetLineMetrics(void)
ok(count == 2, "got %u\n", count);
for (i = 0; i < count; i++) {
todo_wine {
ok(metrics[i].height == 456.0f, "%u: got line height %f\n", i, metrics[i].height);
ok(metrics[i].baseline == 123.0f, "%u: got line baseline %f\n", i, metrics[i].baseline);
}
}
IDWriteTextLayout_Release(layout);