Files
lcdproc/contrib/patches/syncscrollers.patch
T

132 lines
4.3 KiB
Diff

--- server/render.c-ok 2007-04-28 23:54:21.000000000 +0200
+++ server/render.c 2007-04-28 23:51:33.000000000 +0200
@@ -170,6 +170,7 @@
int vis_width = right - left; /* width of visible frame area */
int vis_height = bottom - top; /* height of visible frame area */
int /*fx = 0,*/ fy = 0; /* Scrolling offset for the frame... */
+ int max_scroller_len = 0;
debug(RPT_DEBUG, "%s(list=%p, fscroll='%c', left=%d, top=%d, "
"right=%d, bottom=%d, fwid=%d, fhgt=%d, fspeed=%d, timer=%ld)",
@@ -196,6 +197,27 @@
/* TODO: Frames don't scroll horizontally yet! */
}
+ /* loop through the widgets before starting to render to pull out data we need before starting */
+ LL_Rewind(list);
+ do {
+ Widget *w = (Widget *) LL_Get(list);
+ if (!w)
+ break;
+
+ switch (w->type) {
+ case WID_SCROLLER:
+ /* length is really direction(!) */
+ if (w->length == 'h') {
+ int length = strlen(w->text) + 1;
+ if (max_scroller_len < length)
+ max_scroller_len = length;
+ }
+ break;
+ default:
+ break;
+ }
+ } while (LL_Next(list) == 0);
+
/* reset widget list */
LL_Rewind(list);
@@ -331,14 +353,10 @@
drivers_string(w->left, w->top, w->text);
}
else {
- int necessaryTimeUnits = 0;
-
if (w->speed > 0) {
- necessaryTimeUnits = length * w->speed;
offset = (timer % (length * w->speed)) / w->speed;
}
else if (w->speed < 0) {
- necessaryTimeUnits = length / (w->speed * -1);
offset = (timer % (length / (w->speed * -1))) * w->speed * -1;
}
else {
@@ -372,32 +390,43 @@
}
else {
int effLength = length - screen_width;
- int necessaryTimeUnits = 0;
+ int maxeffLength = max_scroller_len - screen_width;
+ int waitlen = maxeffLength - effLength;
if (w->speed > 0) {
- necessaryTimeUnits = effLength * w->speed;
- if (((timer / (effLength * w->speed)) % 2) == 0) {
+ if (((timer / (maxeffLength * w->speed)) % 2) == 0) {
/* wiggle one way */
- offset = (timer % (effLength * w->speed))
+ offset = (timer % (maxeffLength * w->speed))
/ w->speed;
+ if (offset >= effLength)
+ offset = effLength - 1;
}
else {
/* wiggle the other */
- offset = (((timer % (effLength * w->speed))
- - (effLength * w->speed) + 1)
+ offset = (((timer % (maxeffLength * w->speed))
+ - (maxeffLength * w->speed) + 1)
/ w->speed) * -1;
+ if (offset <= waitlen)
+ offset = 0;
+ else
+ offset -= waitlen;
}
}
else if (w->speed < 0) {
- necessaryTimeUnits = effLength / (w->speed * -1);
- if (((timer / (effLength / (w->speed * -1))) % 2) == 0) {
- offset = (timer % (effLength / (w->speed * -1)))
+ if (((timer / (maxeffLength / (w->speed * -1))) % 2) == 0) {
+ offset = (timer % (maxeffLength / (w->speed * -1)))
* w->speed * -1;
+ if (offset >= effLength)
+ offset = effLength - 1;
}
else {
- offset = (((timer % (effLength / (w->speed * -1)))
+ offset = (((timer % (maxeffLength / (w->speed * -1)))
* w->speed * -1)
- - effLength + 1) * -1;
+ - maxeffLength + 1) * -1;
+ if (offset <= waitlen)
+ offset = 0;
+ else
+ offset -= waitlen;
}
}
else {
@@ -439,14 +468,12 @@
}
}
else {
- int necessaryTimeUnits = 0;
int effLines = lines_required - available_lines + 1;
int begin = 0;
int i = 0;
/*debug(RPT_DEBUG, "length: %d sw: %d lines req: %d avail lines: %d effLines: %d ",length,screen_width,lines_required,available_lines,effLines);*/
if (w->speed > 0) {
- necessaryTimeUnits = effLines * w->speed;
if (((timer / (effLines * w->speed)) % 2) == 0) {
/*debug(RPT_DEBUG, "up ");*/
begin = (timer % (effLines * w->speed))
@@ -460,7 +487,6 @@
}
}
else if (w->speed < 0) {
- necessaryTimeUnits = effLines / (w->speed * -1);
if (((timer / (effLines / (w->speed * -1))) % 2) == 0) {
begin = (timer % (effLines / (w->speed * -1)))
* w->speed * -1;