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dwrite: Keep content based line height and baseline separately. 

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 02:11:34 +03:00 committed by Alexandre Julliard
parent 04b97c2eaa
commit 3c494e82e3
1 changed files with 37 additions and 13 deletions
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48
dlls/dwrite/layout.c
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@ -222,6 +222,11 @@ struct layout_cluster {
UINT32 position; /* relative to run, first cluster has 0 position */
};
struct layout_line {
FLOAT height; /* height based on content */
FLOAT baseline; /* baseline based on content */
};
enum layout_recompute_mask {
RECOMPUTE_CLUSTERS = 1 << 0,
RECOMPUTE_MINIMAL_WIDTH = 1 << 1,
@ -265,7 +270,8 @@ struct dwrite_textlayout {
UINT32 cluster_count;
FLOAT minwidth;
DWRITE_LINE_METRICS1 *lines;
struct layout_line *lines;
DWRITE_LINE_METRICS1 *linemetrics;
UINT32 line_alloc;
DWRITE_TEXT_METRICS1 metrics;
@ -1312,24 +1318,40 @@ static HRESULT layout_set_line_metrics(struct dwrite_textlayout *layout, DWRITE_
{
if (!layout->line_alloc) {
layout->line_alloc = 5;
layout->linemetrics = heap_alloc(layout->line_alloc * sizeof(*layout->linemetrics));
layout->lines = heap_alloc(layout->line_alloc * sizeof(*layout->lines));
if (!layout->lines)
if (!layout->linemetrics || !layout->lines) {
heap_free(layout->linemetrics);
heap_free(layout->lines);
layout->linemetrics = NULL;
layout->lines = NULL;
return E_OUTOFMEMORY;
}
}
if (layout->metrics.lineCount == layout->line_alloc) {
DWRITE_LINE_METRICS1 *l = heap_realloc(layout->lines, layout->line_alloc*2*sizeof(*layout->lines));
if (!l)
DWRITE_LINE_METRICS1 *metrics;
struct layout_line *lines;
if ((metrics = heap_realloc(layout->linemetrics, layout->line_alloc * 2 * sizeof(*layout->linemetrics))))
layout->linemetrics = metrics;
if ((lines = heap_realloc(layout->lines, layout->line_alloc * 2 * sizeof(*layout->lines))))
layout->lines = lines;
if (!metrics || !lines)
return E_OUTOFMEMORY;
layout->lines = l;
layout->line_alloc *= 2;
}
layout->lines[layout->metrics.lineCount++] = *metrics;
layout->linemetrics[layout->metrics.lineCount] = *metrics;
layout->lines[layout->metrics.lineCount].height = metrics->height;
layout->lines[layout->metrics.lineCount].baseline = metrics->baseline;
layout->metrics.lineCount++;
return S_OK;
}
static inline struct layout_effective_run *layout_get_next_erun(struct dwrite_textlayout *layout,
const struct layout_effective_run *cur)
{
@ -1582,7 +1604,7 @@ 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->lines[line].baseline;
origin_y += layout->linemetrics[line].baseline;
while (erun && erun->line == line) {
erun->origin_y = origin_y;
@ -1970,7 +1992,7 @@ static HRESULT layout_compute_effective_runs(struct dwrite_textlayout *layout)
origin_y = 0.0f;
for (line = 0; line < layout->metrics.lineCount; line++) {
origin_y += layout->lines[line].baseline;
origin_y += layout->linemetrics[line].baseline;
/* For all runs on this line */
while (erun && erun->line == line) {
@ -1994,7 +2016,7 @@ static HRESULT layout_compute_effective_runs(struct dwrite_textlayout *layout)
/* Use last line origin y + line descent as total content height */
line--;
layout->metrics.height = origin_y + layout->lines[line].height - layout->lines[line].baseline;
layout->metrics.height = origin_y + layout->linemetrics[line].height - layout->linemetrics[line].baseline;
/* Initial alignment is always leading */
if (layout->format.textalignment != DWRITE_TEXT_ALIGNMENT_LEADING)
@ -2736,6 +2758,7 @@ static ULONG WINAPI dwritetextlayout_Release(IDWriteTextLayout3 *iface)
heap_free(This->actual_breakpoints);
heap_free(This->clustermetrics);
heap_free(This->clusters);
heap_free(This->linemetrics);
heap_free(This->lines);
heap_free(This->str);
heap_free(This);
@ -3457,7 +3480,7 @@ static HRESULT WINAPI dwritetextlayout_GetLineMetrics(IDWriteTextLayout3 *iface,
if (metrics) {
UINT32 i, c = min(max_count, This->metrics.lineCount);
for (i = 0; i < c; i++)
memcpy(metrics + i, This->lines + i, sizeof(*metrics));
memcpy(metrics + i, This->linemetrics + i, sizeof(*metrics));
}
*count = This->metrics.lineCount;
@ -3886,7 +3909,7 @@ static HRESULT WINAPI dwritetextlayout3_GetLineMetrics(IDWriteTextLayout3 *iface
return hr;
if (metrics)
memcpy(metrics, This->lines, sizeof(*metrics)*min(max_count, This->metrics.lineCount));
memcpy(metrics, This->linemetrics, sizeof(*metrics) * min(max_count, This->metrics.lineCount));
*count = This->metrics.lineCount;
return max_count >= This->metrics.lineCount ? S_OK : E_NOT_SUFFICIENT_BUFFER;
@ -4751,6 +4774,7 @@ static HRESULT init_textlayout(const struct textlayout_desc *desc, struct dwrite
layout->cluster_count = 0;
layout->clustermetrics = NULL;
layout->clusters = NULL;
layout->linemetrics = NULL;
layout->lines = NULL;
layout->line_alloc = 0;
layout->minwidth = 0.0f;