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eeshow/gui/over.c; add section comments
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@ -52,6 +52,9 @@ struct overlay {
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};
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/* ----- Drawing core ------------------------------------------------------ */
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static void rrect(cairo_t *cr, int x, int y, int w, int h, int r)
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{
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const double deg = M_PI / 180.0;
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@ -166,6 +169,9 @@ fprintf(stderr, "%u(%d) %u %.60s\n", ty, ink_rect.y / PANGO_SCALE, ink_h, over->
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}
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/* ----- Drawing interfaces ------------------------------------------------ */
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void overlay_draw_all_d(struct overlay *overlays, cairo_t *cr,
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unsigned x, unsigned y, int dx, int dy)
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{
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@ -213,6 +219,9 @@ void overlay_draw_all(struct overlay *overlays, cairo_t *cr, int x, int y)
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}
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/* ----- Creation ---------------------------------------------------------- */
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struct overlay *overlay_add(struct overlay **overlays, struct aoi **aois,
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bool (*hover)(void *user, bool on), void (*click)(void *user), void *user)
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{
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@ -240,6 +249,9 @@ struct overlay *overlay_add(struct overlay **overlays, struct aoi **aois,
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}
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/* ----- Configuration ----------------------------------------------------- */
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void overlay_style(struct overlay *over, const struct overlay_style *style)
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{
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over->style = *style;
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@ -263,6 +275,9 @@ void overlay_text(struct overlay *over, const char *fmt, ...)
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}
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/* ----- Removal ----------------------------------------------------------- */
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static void overlay_free(struct overlay *over)
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{
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if (over->aoi)
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