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(svn r19039) -Feature: Add zoom-out to smallmap.

This commit is contained in:
alberth 2010-02-06 13:12:59 +00:00
parent 05388c953a
commit db6e077c8a
1 changed files with 149 additions and 57 deletions
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206
src/smallmap_gui.cpp
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@ -36,6 +36,8 @@ enum SmallMapWindowWidgets {
SM_WIDGET_MAP_BORDER, ///< Border around the smallmap.
SM_WIDGET_MAP, ///< Panel containing the smallmap.
SM_WIDGET_LEGEND, ///< Bottom panel to display smallmap legends.
SM_WIDGET_ZOOM_IN, ///< Button to zoom in one step.
SM_WIDGET_ZOOM_OUT, ///< Button to zoom out one step.
SM_WIDGET_CONTOUR, ///< Button to select the contour view (height map).
SM_WIDGET_VEHICLES, ///< Button to select the vehicles view.
SM_WIDGET_INDUSTRIES, ///< Button to select the industries view.
@ -440,6 +442,13 @@ class SmallMapWindow : public Window {
SMT_OWNER,
};
/** Available kinds of zoomlevel changes. */
enum ZoomLevelChange {
ZLC_INITIALIZE, ///< Initialize zoom level.
ZLC_ZOOM_OUT, ///< Zoom out.
ZLC_ZOOM_IN, ///< Zoom in.
};
static SmallMapType map_type; ///< Currently displayed legends.
static bool show_towns; ///< Display town names in the smallmap.
@ -452,6 +461,7 @@ class SmallMapWindow : public Window {
int32 scroll_x; ///< Horizontal world coordinate of the base tile left of the top-left corner of the smallmap display.
int32 scroll_y; ///< Vertical world coordinate of the base tile left of the top-left corner of the smallmap display.
int32 subscroll; ///< Number of pixels (0..3) between the right end of the base tile and the pixel at the top-left corner of the smallmap display.
int zoom; ///< Zoom level. Bigger number means more zoom-out (further away).
static const uint8 FORCE_REFRESH_PERIOD = 0x1F; ///< map is redrawn after that many ticks
uint8 refresh; ///< refresh counter, zeroed every FORCE_REFRESH_PERIOD ticks
@ -464,8 +474,16 @@ class SmallMapWindow : public Window {
*/
FORCEINLINE Point RemapTile(int tile_x, int tile_y) const
{
return RemapCoords(tile_x - this->scroll_x / TILE_SIZE,
tile_y - this->scroll_y / TILE_SIZE, 0);
int x_offset = tile_x - this->scroll_x / TILE_SIZE;
int y_offset = tile_y - this->scroll_y / TILE_SIZE;
if (this->zoom == 1) return RemapCoords(x_offset, y_offset, 0);
/* For negative offsets, round towards -inf. */
if (x_offset < 0) x_offset -= this->zoom - 1;
if (y_offset < 0) y_offset -= this->zoom - 1;
return RemapCoords(x_offset / this->zoom, y_offset / this->zoom, 0);
}
/**
@ -483,15 +501,15 @@ class SmallMapWindow : public Window {
/* For each two rows down, add a x and a y tile, and
* For each four pixels to the right, move a tile to the right. */
Point pt = {(dy >> 1) - (dx >> 2), (dy >> 1) + (dx >> 2)};
Point pt = {((dy >> 1) - (dx >> 2)) * this->zoom, ((dy >> 1) + (dx >> 2)) * this->zoom};
dx &= 3;
if (dy & 1) { // Odd number of rows, handle the 2 pixel shift.
if (dx < 2) {
pt.x++;
pt.x += this->zoom;
dx += 2;
} else {
pt.y++;
pt.y += this->zoom;
dx -= 2;
}
}
@ -500,6 +518,51 @@ class SmallMapWindow : public Window {
return pt;
}
/** Initialize or change the zoom level.
* @param change Way to change the zoom level.
*/
void SetZoomLevel(ZoomLevelChange change)
{
static const int zoomlevels[] = {1, 2, 4, 6, 8}; // Available zoom levels. Bigger number means more zoom-out (further away).
static const int MIN_ZOOM_INDEX = 0;
static const int MAX_ZOOM_INDEX = lengthof(zoomlevels) - 1;
int new_index, cur_index, sub;
Point tile;
const NWidgetBase *wid = this->GetWidget<NWidgetBase>(SM_WIDGET_MAP);
switch (change) {
case ZLC_INITIALIZE:
cur_index = - 1; // Definitely different from new_index.
new_index = MIN_ZOOM_INDEX;
break;
case ZLC_ZOOM_IN:
case ZLC_ZOOM_OUT:
for (cur_index = MIN_ZOOM_INDEX; cur_index <= MAX_ZOOM_INDEX; cur_index++) {
if (this->zoom == zoomlevels[cur_index]) break;
}
assert(cur_index <= MAX_ZOOM_INDEX);
tile = this->PixelToTile(wid->current_x / 2, wid->current_y / 2, &sub);
new_index = Clamp(cur_index + ((change == ZLC_ZOOM_IN) ? -1 : 1), MIN_ZOOM_INDEX, MAX_ZOOM_INDEX);
break;
default: NOT_REACHED();
}
if (new_index != cur_index) {
this->zoom = zoomlevels[new_index];
if (cur_index >= 0) {
Point new_tile = this->PixelToTile(wid->current_x / 2, wid->current_y / 2, &sub);
this->SetNewScroll(this->scroll_x + (tile.x - new_tile.x) * TILE_SIZE,
this->scroll_y + (tile.y - new_tile.y) * TILE_SIZE, sub);
}
this->SetWidgetDisabledState(SM_WIDGET_ZOOM_IN, this->zoom == zoomlevels[MIN_ZOOM_INDEX]);
this->SetWidgetDisabledState(SM_WIDGET_ZOOM_OUT, this->zoom == zoomlevels[MAX_ZOOM_INDEX]);
this->SetDirty();
}
}
/**
* Draws one column of tiles of the small map in a certain mode onto the screen buffer, skipping the shifted rows in between.
*
@ -536,7 +599,7 @@ class SmallMapWindow : public Window {
}
}
/* Switch to next tile in the column */
} while (xc++, yc++, dst = blitter->MoveTo(dst, pitch, 0), --reps != 0);
} while (xc += this->zoom, yc += this->zoom, dst = blitter->MoveTo(dst, pitch, 0), --reps != 0);
}
/**
@ -636,23 +699,22 @@ class SmallMapWindow : public Window {
/* Find main viewport. */
const ViewPort *vp = FindWindowById(WC_MAIN_WINDOW, 0)->viewport;
Point pt = RemapCoords(this->scroll_x, this->scroll_y, 0);
int tx = ((vp->virtual_top << 1) - vp->virtual_left) >> 6;
int ty = ((vp->virtual_top << 1) + vp->virtual_left) >> 6;
Point tl = this->RemapTile(tx, ty);
int x = vp->virtual_left - pt.x;
int y = vp->virtual_top - pt.y;
int x2 = (x + vp->virtual_width) / TILE_SIZE;
int y2 = (y + vp->virtual_height) / TILE_SIZE;
x /= TILE_SIZE;
y /= TILE_SIZE;
tx = (((vp->virtual_top + vp->virtual_height) << 1) - (vp->virtual_left + vp->virtual_width)) >> 6;
ty = (((vp->virtual_top + vp->virtual_height) << 1) + (vp->virtual_left + vp->virtual_width)) >> 6;
Point br = this->RemapTile(tx, ty);
x -= this->subscroll;
x2 -= this->subscroll;
tl.x -= this->subscroll;
br.x -= this->subscroll;
SmallMapWindow::DrawVertMapIndicator(x, y, y2);
SmallMapWindow::DrawVertMapIndicator(x2, y, y2);
SmallMapWindow::DrawVertMapIndicator(tl.x, tl.y, br.y);
SmallMapWindow::DrawVertMapIndicator(br.x, tl.y, br.y);
SmallMapWindow::DrawHorizMapIndicator(x, x2, y);
SmallMapWindow::DrawHorizMapIndicator(x, x2, y2);
SmallMapWindow::DrawHorizMapIndicator(tl.x, br.x, tl.y);
SmallMapWindow::DrawHorizMapIndicator(tl.x, br.x, br.y);
}
/**
@ -716,11 +778,11 @@ class SmallMapWindow : public Window {
}
if (y == 0) {
tile_y++;
tile_y += this->zoom;
y++;
ptr = blitter->MoveTo(ptr, 0, 1);
} else {
tile_x--;
tile_x -= this->zoom;
y--;
ptr = blitter->MoveTo(ptr, 0, -1);
}
@ -752,6 +814,7 @@ public:
this->SetWidgetLoweredState(SM_WIDGET_TOGGLETOWNNAME, this->show_towns);
this->GetWidget<NWidgetStacked>(SM_WIDGET_SELECTINDUSTRIES)->SetDisplayedPlane(this->map_type != SMT_INDUSTRY);
this->SetZoomLevel(ZLC_INITIALIZE);
this->SmallMapCenterOnCurrentPos();
}
@ -912,15 +975,27 @@ public:
_left_button_clicked = false;
const NWidgetBase *wid = this->GetWidget<NWidgetBase>(SM_WIDGET_MAP);
Point pt = RemapCoords(this->scroll_x, this->scroll_y, 0);
Window *w = FindWindowById(WC_MAIN_WINDOW, 0);
int sub;
pt = this->PixelToTile(pt.x - wid->pos_x, pt.y - wid->pos_y, &sub);
pt = RemapCoords(this->scroll_x + pt.x * TILE_SIZE + this->zoom * (TILE_SIZE - sub * TILE_SIZE / 4),
this->scroll_y + pt.y * TILE_SIZE + sub * this->zoom * TILE_SIZE / 4, 0);
w->viewport->follow_vehicle = INVALID_VEHICLE;
w->viewport->dest_scrollpos_x = pt.x + ((_cursor.pos.x - this->left + wid->pos_x) << 4) - (w->viewport->virtual_width >> 1);
w->viewport->dest_scrollpos_y = pt.y + ((_cursor.pos.y - this->top - wid->pos_y) << 4) - (w->viewport->virtual_height >> 1);
w->viewport->dest_scrollpos_x = pt.x - (w->viewport->virtual_width >> 1);
w->viewport->dest_scrollpos_y = pt.y - (w->viewport->virtual_height >> 1);
this->SetDirty();
} break;
case SM_WIDGET_ZOOM_IN:
this->SetZoomLevel(ZLC_ZOOM_IN);
break;
case SM_WIDGET_ZOOM_OUT:
this->SetZoomLevel(ZLC_ZOOM_OUT);
break;
case SM_WIDGET_CONTOUR: // Show land contours
case SM_WIDGET_VEHICLES: // Show vehicles
case SM_WIDGET_INDUSTRIES: // Show industries
@ -1025,6 +1100,42 @@ public:
this->SetDirty();
}
/**
* Set new #scroll_x, #scroll_y, and #subscroll values after limiting them such that the center
* of the smallmap always contains a part of the map.
* @param sx Proposed new #scroll_x
* @param sy Proposed new #scroll_y
* @param sub Proposed new #subscroll
*/
void SetNewScroll(int sx, int sy, int sub)
{
const NWidgetBase *wi = this->GetWidget<NWidgetBase>(SM_WIDGET_MAP);
int hx = wi->current_x / 2;
int hy = wi->current_y / 2;
int hvx = (hx * -4 + hy * 8) * this->zoom;
int hvy = (hx * 4 + hy * 8) * this->zoom;
if (sx < -hvx) {
sx = -hvx;
sub = 0;
}
if (sx > (int)MapMaxX() * TILE_SIZE - hvx) {
sx = MapMaxX() * TILE_SIZE - hvx;
sub = 0;
}
if (sy < -hvy) {
sy = -hvy;
sub = 0;
}
if (sy > (int)MapMaxY() * TILE_SIZE - hvy) {
sy = MapMaxY() * TILE_SIZE - hvy;
sub = 0;
}
this->scroll_x = sx;
this->scroll_y = sy;
this->subscroll = sub;
}
virtual void OnScroll(Point delta)
{
_cursor.fix_at = true;
@ -1032,34 +1143,7 @@ public:
/* While tile is at (delta.x, delta.y)? */
int sub;
Point pt = this->PixelToTile(delta.x, delta.y, &sub);
int x = this->scroll_x + pt.x * TILE_SIZE;
int y = this->scroll_y + pt.y * TILE_SIZE;
const NWidgetBase *wi = this->GetWidget<NWidgetBase>(SM_WIDGET_MAP);
int hx = wi->current_x / 2;
int hy = wi->current_y / 2;
int hvx = hx * -4 + hy * 8;
int hvy = hx * 4 + hy * 8;
if (x < -hvx) {
x = -hvx;
sub = 0;
}
if (x > (int)MapMaxX() * TILE_SIZE - hvx) {
x = MapMaxX() * TILE_SIZE - hvx;
sub = 0;
}
if (y < -hvy) {
y = -hvy;
sub = 0;
}
if (y > (int)MapMaxY() * TILE_SIZE - hvy) {
y = MapMaxY() * TILE_SIZE - hvy;
sub = 0;
}
this->scroll_x = x;
this->scroll_y = y;
this->subscroll = sub;
this->SetNewScroll(this->scroll_x + pt.x * TILE_SIZE, this->scroll_y + pt.y * TILE_SIZE, sub);
this->SetDirty();
}
@ -1067,12 +1151,18 @@ public:
void SmallMapCenterOnCurrentPos()
{
const ViewPort *vp = FindWindowById(WC_MAIN_WINDOW, 0)->viewport;
const NWidgetBase *wi = this->GetWidget<NWidgetBase>(SM_WIDGET_MAP);
int x = ((vp->virtual_width - (int)wi->current_x * TILE_SIZE) / 2 + vp->virtual_left) / 4;
int y = ((vp->virtual_height - (int)wi->current_y * TILE_SIZE) / 2 + vp->virtual_top ) / 2 - TILE_SIZE * 2;
this->scroll_x = (y - x) & ~0xF;
this->scroll_y = (x + y) & ~0xF;
int x = vp->virtual_left + vp->virtual_width / 2;
int y = vp->virtual_top + vp->virtual_height / 2;
int tx = (y * 2 - x) >> 2;
int ty = (y * 2 + x) >> 2;
int sub;
const NWidgetBase *wid = this->GetWidget<NWidgetBase>(SM_WIDGET_MAP);
Point tile = this->PixelToTile(wid->current_x / 2, wid->current_y / 2, &sub);
this->SetNewScroll(tx - tile.x * TILE_SIZE, ty - tile.y * TILE_SIZE, sub);
this->SetDirty();
}
};
@ -1168,6 +1258,7 @@ static const NWidgetPart _nested_smallmap_bar[] = {
NWidget(NWID_VERTICAL),
/* Top button row. */
NWidget(NWID_HORIZONTAL, NC_EQUALSIZE),
NWidget(WWT_PUSHIMGBTN, COLOUR_BROWN, SM_WIDGET_ZOOM_IN), SetDataTip(SPR_IMG_ZOOMIN, STR_TOOLBAR_TOOLTIP_ZOOM_THE_VIEW_IN),
NWidget(WWT_PUSHIMGBTN, COLOUR_BROWN, SM_WIDGET_CENTERMAP), SetDataTip(SPR_IMG_SMALLMAP, STR_SMALLMAP_CENTER),
NWidget(WWT_IMGBTN, COLOUR_BROWN, SM_WIDGET_CONTOUR), SetDataTip(SPR_IMG_SHOW_COUNTOURS, STR_SMALLMAP_TOOLTIP_SHOW_LAND_CONTOURS_ON_MAP),
NWidget(WWT_IMGBTN, COLOUR_BROWN, SM_WIDGET_VEHICLES), SetDataTip(SPR_IMG_SHOW_VEHICLES, STR_SMALLMAP_TOOLTIP_SHOW_VEHICLES_ON_MAP),
@ -1175,6 +1266,7 @@ static const NWidgetPart _nested_smallmap_bar[] = {
EndContainer(),
/* Bottom button row. */
NWidget(NWID_HORIZONTAL, NC_EQUALSIZE),
NWidget(WWT_PUSHIMGBTN, COLOUR_BROWN, SM_WIDGET_ZOOM_OUT), SetDataTip(SPR_IMG_ZOOMOUT, STR_TOOLBAR_TOOLTIP_ZOOM_THE_VIEW_OUT),
NWidget(WWT_IMGBTN, COLOUR_BROWN, SM_WIDGET_TOGGLETOWNNAME), SetDataTip(SPR_IMG_TOWN, STR_SMALLMAP_TOOLTIP_TOGGLE_TOWN_NAMES_ON_OFF),
NWidget(WWT_IMGBTN, COLOUR_BROWN, SM_WIDGET_ROUTES), SetDataTip(SPR_IMG_SHOW_ROUTES, STR_SMALLMAP_TOOLTIP_SHOW_TRANSPORT_ROUTES_ON),
NWidget(WWT_IMGBTN, COLOUR_BROWN, SM_WIDGET_VEGETATION), SetDataTip(SPR_IMG_PLANTTREES, STR_SMALLMAP_TOOLTIP_SHOW_VEGETATION_ON_MAP),