examples: reduce C. prefix usage, rename fontstash enums (#14011)

vlib/fontstash/fontstash.c.v

@@ -178,7 +178,17 @@ pub fn (s &Context) set_blur(blur f32) {
 // See also: clear_state
 [inline]
 pub fn (s &Context) set_align(align int) {
-	C.fonsSetAlign(s, align)
+	C.fonsSetAlign(s, int(align))
+}
+
+// set_alignment sets the font aligning to the `align` flags.
+//
+// See also: push_state
+// See also: pop_state
+// See also: clear_state
+[inline]
+pub fn (s &Context) set_alignment(align Align) {
+	C.fonsSetAlign(s, int(align))
 }
 
 // set_font sets the font used for this render on the active state.

vlib/fontstash/fontstash_enums.v

@@ -1,23 +1,25 @@
 module fontstash
 
-pub enum FonsFlags {
-	top_left = 1
-	bottom_left = 2
+[flag]
+pub enum Flags {
+	top_left
+	bottom_left
 }
 
-pub enum FonsAlign {
+[flag]
+pub enum Align {
 	// Horizontal align
-	left = 1 // Default
-	center = 2
-	right = 4
+	left // Default
+	center
+	right
 	// Vertical align
-	top = 8
-	middle = 16
-	bottom = 32
-	baseline = 64 // Default
+	top
+	middle
+	bottom
+	baseline // Default
 }
 
-pub enum FonsErrorCode {
+pub enum ErrorCode {
 	// Font atlas is full.
 	atlas_full = 1
 	// Scratch memory used to render glyphs is full, requested size reported in 'val', you may need to bump up FONS_SCRATCH_BUF_SIZE.