From a30901210cfde971bac780b5c0bbdeda215ea809 Mon Sep 17 00:00:00 2001
From: Bert <ber.t@gmx.com>
Date: Sun, 20 Feb 2011 00:08:17 +0100
Subject: [PATCH] Mouse-wheel scrolling in thumb mode
---
Makefile | 2 +-
main.c | 20 ++++++++++++++++----
thumbs.c | 44 ++++++++++++++++++++++++++++++++++++--------
thumbs.h | 15 ++++++++-------
4 files changed, 61 insertions(+), 20 deletions(-)
diff --git a/Makefile b/Makefile
index 01f4bf7..7db2bb2 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
all: sxiv
-VERSION=git-20110219
+VERSION=git-20110220
CC?=gcc
PREFIX?=/usr/local
diff --git a/main.c b/main.c
index a863d18..9b5b41b 100644
--- a/main.c
+++ b/main.c
@@ -397,19 +397,25 @@ void on_keypress(XKeyEvent *kev) {
/* move selection */
case XK_h:
case XK_Left:
- changed = tns_move_selection(&tns, &win, MOVE_LEFT);
+ changed = tns_move_selection(&tns, &win, TNS_LEFT);
break;
case XK_j:
case XK_Down:
- changed = tns_move_selection(&tns, &win, MOVE_DOWN);
+ changed = tns_move_selection(&tns, &win, TNS_DOWN);
break;
case XK_k:
case XK_Up:
- changed = tns_move_selection(&tns, &win, MOVE_UP);
+ changed = tns_move_selection(&tns, &win, TNS_UP);
break;
case XK_l:
case XK_Right:
- changed = tns_move_selection(&tns, &win, MOVE_RIGHT);
+ changed = tns_move_selection(&tns, &win, TNS_RIGHT);
+ break;
+
+ /* scroll */
+ case XK_bracketleft:
+ break;
+ case XK_bracketright:
break;
}
}
@@ -524,6 +530,12 @@ void on_buttonpress(XButtonEvent *bev) {
break;
}
break;
+ case Button4:
+ changed = tns_scroll(&tns, TNS_UP);
+ break;
+ case Button5:
+ changed = tns_scroll(&tns, TNS_DOWN);
+ break;
}
}
diff --git a/thumbs.c b/thumbs.c
index 3de9518..aea40ee 100644
--- a/thumbs.c
+++ b/thumbs.c
@@ -88,21 +88,27 @@ void tns_load(tns_t *tns, win_t *win, const char *filename) {
}
void tns_check_view(tns_t *tns, Bool scrolled) {
+ int r;
+
if (!tns)
return;
tns->first -= tns->first % tns->cols;
+ r = fileidx % tns->cols;
if (scrolled) {
/* move selection into visible area */
+ if (fileidx >= tns->first + tns->cols * tns->rows)
+ fileidx = tns->first + r + tns->cols * (tns->rows - 1);
+ else if (fileidx < tns->first)
+ fileidx = tns->first + r;
} else {
/* scroll to selection */
if (tns->first + tns->cols * tns->rows <= fileidx) {
- tns->first = fileidx - fileidx % tns->cols -
- tns->cols * (tns->rows - 1);
+ tns->first = fileidx - r - tns->cols * (tns->rows - 1);
tns->dirty = 1;
} else if (tns->first > fileidx) {
- tns->first = fileidx - fileidx % tns->cols;
+ tns->first = fileidx - r;
tns->dirty = 1;
}
}
@@ -167,7 +173,7 @@ void tns_highlight(tns_t *tns, win_t *win, int n, Bool hl) {
win_draw(win);
}
-int tns_move_selection(tns_t *tns, win_t *win, movedir_t dir) {
+int tns_move_selection(tns_t *tns, win_t *win, tnsdir_t dir) {
int old;
if (!tns || !win)
@@ -176,19 +182,19 @@ int tns_move_selection(tns_t *tns, win_t *win, movedir_t dir) {
old = fileidx;
switch (dir) {
- case MOVE_LEFT:
+ case TNS_LEFT:
if (fileidx > 0)
--fileidx;
break;
- case MOVE_RIGHT:
+ case TNS_RIGHT:
if (fileidx < tns->cnt - 1)
++fileidx;
break;
- case MOVE_UP:
+ case TNS_UP:
if (fileidx >= tns->cols)
fileidx -= tns->cols;
break;
- case MOVE_DOWN:
+ case TNS_DOWN:
if (fileidx + tns->cols < tns->cnt)
fileidx += tns->cols;
break;
@@ -204,6 +210,28 @@ int tns_move_selection(tns_t *tns, win_t *win, movedir_t dir) {
return fileidx != old;
}
+int tns_scroll(tns_t *tns, tnsdir_t dir) {
+ int old;
+
+ if (!tns)
+ return 0;
+
+ old = tns->first;
+
+ if (dir == TNS_DOWN && tns->first + tns->cols * tns->rows < tns->cnt)
+ tns->first += tns->cols;
+ else if (dir == TNS_UP && tns->first >= tns->cols)
+ tns->first -= tns->cols;
+
+ if (tns->first != old) {
+ tns_check_view(tns, True);
+ tns->dirty = 1;
+ return 1;
+ } else {
+ return 0;
+ }
+}
+
int tns_translate(tns_t *tns, int x, int y) {
int n;
thumb_t *t;
diff --git a/thumbs.h b/thumbs.h
index c545b90..62d2c72 100644
--- a/thumbs.h
+++ b/thumbs.h
@@ -21,12 +21,12 @@
#include "window.h"
-typedef enum movedir_e {
- MOVE_LEFT = 0,
- MOVE_RIGHT,
- MOVE_UP,
- MOVE_DOWN
-} movedir_t;
+typedef enum tnsdir_e {
+ TNS_LEFT = 0,
+ TNS_RIGHT,
+ TNS_UP,
+ TNS_DOWN
+} tnsdir_t;
typedef struct thumb_s {
Pixmap pm;
@@ -56,7 +56,8 @@ void tns_load(tns_t*, win_t*, const char*);
void tns_render(tns_t*, win_t*);
void tns_highlight(tns_t*, win_t*, int, Bool);
-int tns_move_selection(tns_t*, win_t*, movedir_t);
+int tns_move_selection(tns_t*, win_t*, tnsdir_t);
+int tns_scroll(tns_t*, tnsdir_t);
int tns_translate(tns_t*, int, int);