overlay: rename overlay.[ch] -> overlays.[ch]

In preparation for vwm_overlays_* encapsulation of overlay global state
and general cleanup therein.

1 files changed, 37 insertions, 0 deletions

diff --git a/src/overlays.h b/src/overlays.h
new file mode 100644
index 0000000..bfcf0da
--- /dev/null
+++ b/src/overlays.h
@@ -0,0 +1,37 @@
+#ifndef _OVERLAYS_H
+#define _OVERLAYS_H
+
+#include <X11/Xlib.h>
+#include <X11/extensions/Xrender.h>
+
+typedef struct _vwm_t vwm_t;
+typedef struct _vwm_xwindow_t vwm_xwindow_t;
+
+/* everything needed by the per-window overlay's context */
+typedef struct _vwm_overlay_t {
+	Pixmap	text_pixmap;		/* pixmap for overlayed text (kept around for XDrawText usage) */
+	Picture	text_picture;		/* picture representation of text_pixmap */
+	Picture	shadow_picture;		/* text shadow layer */
+	Picture	grapha_picture;		/* graph A layer */
+	Picture	graphb_picture;		/* graph B layer */
+	Picture	tmp_picture;		/* 1 row worth of temporary picture space */
+	Picture	picture;		/* overlay picture derived from the pixmap, for render compositing */
+	int	width;			/* current width of the overlay */
+	int	height;			/* current height of the overlay */
+	int	phase;			/* current position within the (horizontally scrolling) graphs */
+	int	heirarchy_end;		/* row where the process heirarchy currently ends */
+	int	snowflakes_cnt;		/* count of snowflaked rows (reset to zero to truncate snowflakes display) */
+	int	gen_last_composed;	/* the last composed vmon generation */
+	int	redraw_needed;		/* if a redraw is required (like when the window is resized...) */
+} vwm_overlay_t;
+
+int vwm_overlay_xwin_composed_height(vwm_t *vwm, vwm_xwindow_t *xwin);
+void vwm_overlay_xwin_reset_snowflakes(vwm_t *vwm, vwm_xwindow_t *xwin);
+void vwm_overlay_xwin_create(vwm_t *vwm, vwm_xwindow_t *xwin);
+void vwm_overlay_xwin_destroy(vwm_t *vwm, vwm_xwindow_t *xwin);
+void vwm_overlay_xwin_compose(vwm_t *vwm, vwm_xwindow_t *xwin);
+void vwm_overlay_rate_increase(vwm_t *vwm);
+void vwm_overlay_rate_decrease(vwm_t *vwm);
+void vwm_overlay_update(vwm_t *vwm, int *desired_delay);
+
+#endif