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new APIs: SetFontNameInTextRuns, SetTextColorInTextRuns, SetBackgroundColorInTextRuns, and GetXXXX

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Vincent Wei
2019-03-28 18:57:21 +08:00
parent 1c79cf510f
commit 6a5cfd1052
1 changed files with 34 additions and 10 deletions
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src/newgdi/textrunsinfo.c
+34 -10
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@@ -623,24 +623,38 @@ BOOL GUIAPI SetFontNameInTextRuns(TEXTRUNSINFO* runinfo,
int left_ucs;;
if (runinfo == NULL || logfont_name == NULL ||
start_index < 0 || (start_index + length) > runinfo->nr_ucs)
start_index < 0 || length <= 0 ||
(start_index + length) > runinfo->nr_ucs)
return FALSE;
if (strcmp(logfont_name, runinfo->fontname) == 0)
return TRUE;
// can not change font for empty runs
if (list_empty(&runinfo->truns))
return FALSE;
if (!is_fontname_conformed(logfont_name)) {
return FALSE;
}
// change the default fontname
if (start_index == 0 && length == runinfo->nr_ucs) {
// change the default fontname
if (!is_fontname_conformed(logfont_name)) {
return FALSE;
}
struct list_head* i;
// do not allow to set the same font as the default
if (strcmp(logfont_name, runinfo->fontname) == 0)
return TRUE;
free(runinfo->fontname);
runinfo->fontname = strdup(logfont_name);
// reset all runs fontname
list_for_each(i, &runinfo->truns) {
TextRun* run = (TextRun*)i;
if (run->fontname) {
free(run->fontname);
run->fontname = NULL;
}
}
return TRUE;
}
@@ -651,6 +665,13 @@ BOOL GUIAPI SetFontNameInTextRuns(TEXTRUNSINFO* runinfo,
if (run == NULL)
return FALSE;
// no need to change
if (run->fontname && strcmp(logfont_name, run->fontname) == 0) {
start_index = run->si + run->len;
left_ucs -= run->len - start_offset;
continue;
}
if (start_offset == 0) {
if (left_ucs >= run->len) {
// change the fontname of current run
@@ -677,6 +698,9 @@ BOOL GUIAPI SetFontNameInTextRuns(TEXTRUNSINFO* runinfo,
TextRun* new_run;
new_run = __mg_text_run_split(run, start_offset);
if (new_run->fontname)
new_run->fontname = strdup(new_run->fontname);
// insert the new run to the list.
__list_add(&new_run->list, run->list.prev, &run->list);
}
@@ -710,7 +734,7 @@ BOOL GUIAPI SetTextColorInTextRuns(TEXTRUNSINFO* runinfo,
{
TextColorMap* color_entry = NULL;
if (runinfo == NULL || start_index < 0 || length < 0 ||
if (runinfo == NULL || start_index < 0 || length <= 0 ||
start_index > runinfo->nr_ucs ||
(start_index + length) > runinfo->nr_ucs) {
goto error;
@@ -754,7 +778,7 @@ BOOL GUIAPI SetBackgroundColorInTextRuns(TEXTRUNSINFO* runinfo,
{
TextColorMap* color_entry = NULL;
if (runinfo == NULL || start_index < 0 || length < 0 ||
if (runinfo == NULL || start_index < 0 || length <= 0 ||
start_index > runinfo->nr_ucs ||
(start_index + length) > runinfo->nr_ucs) {
goto error;