basic draw.c structure

1 files changed, 139 insertions, 0 deletions

diff --git a/draw.c b/draw.c
new file mode 100644
index 0000000..04e7f0d
--- /dev/null
+++ b/draw.c
@@ -0,0 +1,139 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdlib.h>
+#include <X11/Xlib.h>
+
+#include "draw.h"
+
+Draw *
+draw_create(Display *dpy, Window win, unsigned int w, unsigned int h) {
+	Draw *draw = (Draw *)calloc(1, sizeof(Draw));
+	draw->w = w;
+	draw->h = h;
+	/* TODO: drawable creation */
+	/* TODO: gc allocation */
+	return draw;
+}
+
+void
+draw_resize(Draw *draw, unsigned int w, unsigned int h) {
+	if(!draw)
+		return;
+	draw->w = w;
+	draw->h = h;
+	/* TODO: resize drawable */
+}
+
+void
+draw_free(Draw *draw) {
+	/* TODO: deallocate DDCs */
+	/* TODO: deallocate drawable */
+	free(draw);
+}
+
+DDC *
+dc_create(Draw *draw) {
+	DDC *dc = (DDC *)calloc(1, sizeof(DDC));
+	dc->draw = draw;
+	dc->next = draw->dc;
+	draw->dc = dc;
+	return dc;
+}
+
+void
+dc_free(DDC *dc) {
+	DDC **tdc;
+
+	if(!dc)
+		return;
+	/* remove from dc list */
+	for(tdc = &dc->draw->dc; *tdc && *tdc != dc; tdc = &(*tdc)->next);
+	*tdc = dc->next;
+	/* TODO: deallocate any resources of this dc, if needed */
+	free(dc);
+}
+
+Fnt *
+font_create(const char *fontname) {
+	Fnt *font = (Fnt *)calloc(1, sizeof(Fnt));
+	/* TODO: allocate actual font */
+	return font;
+}
+
+void
+font_free(Fnt *font) {
+	if(!font)
+		return;
+	/* TODO: deallocate any font resources */
+	free(font);
+}
+
+Col *
+col_create(const char *colname) {
+	Col *col = (Col *)calloc(1, sizeof(Col));
+	/* TODO: allocate color */
+	return col;
+}
+
+void
+col_free(Col *col) {
+	if(!col)
+		return;
+	/* TODO: deallocate any color resource */
+	free(col);
+}
+
+void
+dc_setfont(DDC *dc, Fnt *font) {
+	if(!dc || !font)
+		return;
+	dc->font = font;
+}
+
+void
+dc_setfg(DDC *dc, Col *col) {
+	if(!dc || !col) 
+		return;
+	dc->fg = col;
+}
+
+void
+dc_setbg(DDC *dc, Col *col) {
+	if(!dc || !col)
+		return;
+	dc->bg = col;
+}
+
+void
+dc_setfill(DDC *dc, Bool fill) {
+	if(!dc)
+		return;
+	dc->fill = fill;
+}
+
+void
+dc_drawrect(DDC *dc, int x, int y, unsigned int w, unsigned int h) {
+	if(!dc)
+		return;
+	/* TODO: draw the rectangle */
+}
+
+void
+dc_drawtext(DDC *dc, int x, int y, const char *text) {
+	if(!dc)
+		return;
+	/* TODO: draw the text */
+}
+
+void
+dc_map(DDC *dc, int x, int y, unsigned int w, unsigned int h) {
+	if(!dc)
+		return;
+	/* TODO: map the dc contents in the region */
+}
+
+void
+dc_getextents(DDC *dc, const char *text, TextExtents *extents) {
+	if(!dc || !extents)
+		return;
+	/* TODO: get extents */
+}