Move win-agnostic parts of draw/drawregion to st.c - st - Personal fork of st
(HTM) git clone git://git.drkhsh.at/st.git
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---
(DIR) commit 88d8293fb4ba150a5f19d58d133b5db93d9dcfa5
(DIR) parent 05c66cb37d9ff278a3e0c45682c4b5e7945deb42
(HTM) Author: Devin J. Pohly <djpohly@gmail.com>
Date: Sat, 24 Feb 2018 14:53:23 -0600
Move win-agnostic parts of draw/drawregion to st.c
Introduces three functions to encapsulate X-specific behavior:
* xdrawline: draws a portion of a single line (used by drawregion)
* xbegindraw: called to prepare for drawing (will be useful for e.g.
Wayland) and returns true if drawing should happen
* xfinishdraw: called to finish drawing (used by draw)
Signed-off-by: Devin J. Pohly <djpohly@gmail.com>
Diffstat:
M st.c | 25 +++++++++++++++++++++++++
M st.h | 1 +
M win.h | 7 ++++---
M x.c | 79 ++++++++++++++-----------------
4 files changed, 65 insertions(+), 47 deletions(-)
---
(DIR) diff --git a/st.c b/st.c
@@ -166,6 +166,8 @@ static int32_t tdefcolor(int *, int *, int);
static void tdeftran(char);
static void tstrsequence(uchar);
+static void drawregion(int, int, int, int);
+
static void selscroll(int, int);
static void selsnap(int *, int *, int);
@@ -2527,6 +2529,29 @@ resettitle(void)
}
void
+drawregion(int x1, int y1, int x2, int y2)
+{
+ int y;
+ for (y = y1; y < y2; y++) {
+ if (!term.dirty[y])
+ continue;
+
+ term.dirty[y] = 0;
+ xdrawline(term.line[y], x1, y, x2);
+ }
+}
+
+void
+draw(void)
+{
+ if (!xstartdraw())
+ return;
+ drawregion(0, 0, term.col, term.row);
+ xdrawcursor();
+ xfinishdraw();
+}
+
+void
redraw(void)
{
tfulldirt();
(DIR) diff --git a/st.h b/st.h
@@ -131,6 +131,7 @@ typedef union {
void die(const char *, ...);
void redraw(void);
+void draw(void);
void iso14755(const Arg *);
void printscreen(const Arg *);
(DIR) diff --git a/win.h b/win.h
@@ -23,12 +23,12 @@ enum win_mode {
|MODE_MOUSEMANY,
};
-void draw(void);
-void drawregion(int, int, int, int);
-
void xbell(void);
void xclipcopy(void);
+void xdrawcursor(void);
+void xdrawline(Line, int, int, int);
void xhints(void);
+void xfinishdraw(void);
void xloadcols(void);
int xsetcolorname(int, const char *);
void xsettitle(char *);
@@ -36,3 +36,4 @@ int xsetcursor(int);
void xsetmode(int, unsigned int);
void xsetpointermotion(int);
void xsetsel(char *);
+int xstartdraw(void);
(DIR) diff --git a/x.c b/x.c
@@ -129,7 +129,6 @@ static int xmakeglyphfontspecs(XftGlyphFontSpec *, const Glyph *, int, int, int)
static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int);
static void xdrawglyph(Glyph, int, int);
static void xclear(int, int, int, int);
-static void xdrawcursor(void);
static int xgeommasktogravity(int);
static void xinit(void);
static void cresize(int, int);
@@ -1512,59 +1511,51 @@ xsettitle(char *p)
XFree(prop.value);
}
-void
-draw(void)
+int
+xstartdraw(void)
{
- drawregion(0, 0, term.col, term.row);
- XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, win.w,
- win.h, 0, 0);
- XSetForeground(xw.dpy, dc.gc,
- dc.col[IS_SET(MODE_REVERSE)?
- defaultfg : defaultbg].pixel);
+ return IS_SET(MODE_VISIBLE);
}
void
-drawregion(int x1, int y1, int x2, int y2)
+xdrawline(Line line, int x1, int y1, int x2)
{
- int i, x, y, ox, numspecs;
+ int i, x, ox, numspecs;
Glyph base, new;
- XftGlyphFontSpec *specs;
+ XftGlyphFontSpec *specs = xw.specbuf;
- if (!(IS_SET(MODE_VISIBLE)))
- return;
-
- for (y = y1; y < y2; y++) {
- if (!term.dirty[y])
+ numspecs = xmakeglyphfontspecs(specs, &line[x1], x2 - x1, x1, y1);
+ i = ox = 0;
+ for (x = x1; x < x2 && i < numspecs; x++) {
+ new = line[x];
+ if (new.mode == ATTR_WDUMMY)
continue;
-
- term.dirty[y] = 0;
-
- specs = xw.specbuf;
- numspecs = xmakeglyphfontspecs(specs, &term.line[y][x1], x2 - x1, x1, y);
-
- i = ox = 0;
- for (x = x1; x < x2 && i < numspecs; x++) {
- new = term.line[y][x];
- if (new.mode == ATTR_WDUMMY)
- continue;
- if (selected(x, y))
- new.mode ^= ATTR_REVERSE;
- if (i > 0 && ATTRCMP(base, new)) {
- xdrawglyphfontspecs(specs, base, i, ox, y);
- specs += i;
- numspecs -= i;
- i = 0;
- }
- if (i == 0) {
- ox = x;
- base = new;
- }
- i++;
+ if (selected(x, y1))
+ new.mode ^= ATTR_REVERSE;
+ if (i > 0 && ATTRCMP(base, new)) {
+ xdrawglyphfontspecs(specs, base, i, ox, y1);
+ specs += i;
+ numspecs -= i;
+ i = 0;
+ }
+ if (i == 0) {
+ ox = x;
+ base = new;
}
- if (i > 0)
- xdrawglyphfontspecs(specs, base, i, ox, y);
+ i++;
}
- xdrawcursor();
+ if (i > 0)
+ xdrawglyphfontspecs(specs, base, i, ox, y1);
+}
+
+void
+xfinishdraw(void)
+{
+ XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, win.w,
+ win.h, 0, 0);
+ XSetForeground(xw.dpy, dc.gc,
+ dc.col[IS_SET(MODE_REVERSE)?
+ defaultfg : defaultbg].pixel);
}
void