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(svn r5046) - Implement smooth horizontal depot scrolling by setting up a clipping area to draw the train image. This fixes a couple of usability issues when shorter wagons are used in the depot; shorter wagons scrolled at a different speed, and not all wagons were visible sometimes.

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This commit is contained in:
peter1138 2006-05-30 21:19:46 +00:00
parent 078399d314
commit 2d88fb54b9
1 changed files with 33 additions and 21 deletions
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54
train_gui.c
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@ -362,24 +362,33 @@ static int WagonLengthToPixels(int len) {
static void DrawTrainImage(const Vehicle *v, int x, int y, int count, int skip, VehicleID selection)
{
int dx = 0;
count *= 29;
DrawPixelInfo tmp_dpi, *old_dpi;
int dx = -(skip * 8) / _traininfo_vehicle_width;
if (!FillDrawPixelInfo(&tmp_dpi, NULL, x - 1, y - 1, count, 14)) return;
count = (count * 8) / _traininfo_vehicle_width;
old_dpi = _cur_dpi;
_cur_dpi = &tmp_dpi;
do {
if (--skip < 0) {
int width = v->u.rail.cached_veh_length;
int width = v->u.rail.cached_veh_length;
if (WagonLengthToPixels(dx + width) <= count) {
if (dx + width > 0) {
if (dx <= count) {
PalSpriteID pal = (v->vehstatus & VS_CRASHED) ? PALETTE_CRASH : GetVehiclePalette(v);
DrawSprite(GetTrainImage(v, DIR_W) | pal, x + 14 + WagonLengthToPixels(dx), y + 6 + (is_custom_sprite(RailVehInfo(v->engine_type)->image_index) ? _traininfo_vehicle_pitch : 0));
DrawSprite(GetTrainImage(v, DIR_W) | pal, 15 + WagonLengthToPixels(dx), 7 + (is_custom_sprite(RailVehInfo(v->engine_type)->image_index) ? _traininfo_vehicle_pitch : 0));
if (v->index == selection)
DrawFrameRect(x - 1 + WagonLengthToPixels(dx), y - 1, x + WagonLengthToPixels(dx + width) - 1, y + 12, 15, FR_BORDERONLY);
DrawFrameRect(WagonLengthToPixels(dx), 0, WagonLengthToPixels(dx + width), 13, 15, FR_BORDERONLY);
}
dx += width;
}
dx += width;
v = v->next;
} while (WagonLengthToPixels(dx) < count && v != NULL);
} while (dx < count && v != NULL);
_cur_dpi = old_dpi;
}
static void DrawTrainDepotWindow(Window *w)
@ -415,7 +424,7 @@ static void DrawTrainDepotWindow(Window *w)
num++;
SetVScrollCount(w, num);
SetHScrollCount(w, (hnum + 7) / 8);
SetHScrollCount(w, WagonLengthToPixels(hnum));
/* locate the depot struct */
depot = GetDepotByTile(tile);
@ -433,7 +442,7 @@ static void DrawTrainDepotWindow(Window *w)
if (v->type == VEH_Train && IsFrontEngine(v) &&
v->tile == tile && v->u.rail.track == 0x80 &&
--num < 0 && num >= -w->vscroll.cap) {
DrawTrainImage(v, x+21, y, w->hscroll.cap, w->hscroll.pos, WP(w,traindepot_d).sel);
DrawTrainImage(v, x+21, y, w->hscroll.cap + 4, w->hscroll.pos, WP(w,traindepot_d).sel);
/* Draw the train number */
SetDParam(0, v->unitnumber);
DrawString(x, y, (v->max_age - 366 < v->age) ? STR_00E3 : STR_00E2, 0);
@ -454,7 +463,7 @@ static void DrawTrainDepotWindow(Window *w)
if (v->type == VEH_Train && IsFreeWagon(v) &&
v->tile == tile && v->u.rail.track == 0x80 &&
--num < 0 && num >= -w->vscroll.cap) {
DrawTrainImage(v, x+50, y, w->hscroll.cap - 1, 0, WP(w,traindepot_d).sel);
DrawTrainImage(v, x+50, y, w->hscroll.cap - 29, 0, WP(w,traindepot_d).sel);
DrawString(x, y+2, STR_8816, 0);
/*Draw the train counter */
@ -523,11 +532,14 @@ found_it:
/* either pressed the flag or the number, but only when it's a loco */
if (x < 0 && IsFrontEngine(v)) return (x >= -10) ? -2 : -1;
// skip vehicles that are scrolled off the left side
while (v != NULL && skip--) v = v->next;
skip = (skip * 8) / _traininfo_vehicle_width;
x = (x * 8) / _traininfo_vehicle_width;
/* Skip vehicles that are scrolled off the list */
x += skip;
/* find the vehicle in this row that was clicked */
while (v != NULL && (x -= WagonLengthToPixels(v->u.rail.cached_veh_length)) >= 0) v = v->next;
while (v != NULL && (x -= v->u.rail.cached_veh_length) >= 0) v = v->next;
// if an articulated part was selected, find its parent
while (v != NULL && IsArticulatedPart(v)) v = GetPrevVehicleInChain(v);
@ -749,7 +761,7 @@ static void TrainDepotWndProc(Window *w, WindowEvent *e)
case WE_RESIZE: {
/* Update the scroll + matrix */
w->vscroll.cap += e->sizing.diff.y / 14;
w->hscroll.cap += e->sizing.diff.x / 29;
w->hscroll.cap += e->sizing.diff.x;
w->widget[6].unkA = (w->vscroll.cap << 8) + 1;
} break;
}
@ -795,8 +807,8 @@ void ShowTrainDepotWindow(TileIndex tile)
if (w) {
w->caption_color = GetTileOwner(w->window_number);
w->vscroll.cap = 6;
w->hscroll.cap = 10;
w->resize.step_width = 29;
w->hscroll.cap = 10 * 29;
w->resize.step_width = 1;
w->resize.step_height = 14;
WP(w,traindepot_d).sel = INVALID_VEHICLE;
_backup_orders_tile = 0;
@ -1547,7 +1559,7 @@ static void PlayerTrainsWndProc(Window *w, WindowEvent *e)
case WE_RESIZE:
/* Update the scroll + matrix */
w->hscroll.cap += e->sizing.diff.x / 29;
w->hscroll.cap += e->sizing.diff.x;
w->vscroll.cap += e->sizing.diff.y / PLY_WND_PRC__SIZE_OF_ROW_SMALL;
w->widget[7].unkA = (w->vscroll.cap << 8) + 1;
break;
@ -1581,11 +1593,11 @@ void ShowPlayerTrains(PlayerID player, StationID station)
}
if (w) {
w->caption_color = player;
w->hscroll.cap = 10;
w->hscroll.cap = 10 * 29;
w->vscroll.cap = 7; // maximum number of vehicles shown
w->widget[7].unkA = (w->vscroll.cap << 8) + 1;
w->resize.step_height = PLY_WND_PRC__SIZE_OF_ROW_SMALL;
w->resize.step_width = 29;
w->resize.step_width = 1;
w->resize.height = 220 - (PLY_WND_PRC__SIZE_OF_ROW_SMALL * 3); /* Minimum of 4 vehicles */
}
}