1 files changed, 176 insertions, 0 deletions
diff --git a/src/cargodest_gui.cpp b/src/cargodest_gui.cpp
new file mode 100644
index 000000000..bf5fdd1d4
--- /dev/null
+++ b/src/cargodest_gui.cpp
@@ -0,0 +1,176 @@
+/* $Id$ */
+
+/*
+ * This file is part of OpenTTD.
+ * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
+ * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/** @file cargodest_gui.cpp GUI for cargo destinations. */
+
+#include "stdafx.h"
+#include "window_gui.h"
+#include "gfx_func.h"
+#include "strings_func.h"
+#include "cargodest_base.h"
+#include "cargodest_gui.h"
+#include "town.h"
+#include "industry.h"
+#include "string_func.h"
+#include "gui.h"
+#include "viewport_func.h"
+
+#include "table/strings.h"
+
+static const CargoSourceSink *_cur_cargo_source;
+
+int CDECL CargoLinkSorter(const GUICargoLink *a, const GUICargoLink *b)
+{
+	/* Sort by cargo type. */
+	if (a->cid != b->cid) return a->cid < b->cid ? -1 : +1;
+
+	/* Sort unspecified destination links always last. */
+	if (a->link->dest == NULL) return +1;
+	if (b->link->dest == NULL) return -1;
+
+	/* Sort link with the current source as destination first. */
+	if (a->link->dest == _cur_cargo_source) return -1;
+	if (b->link->dest == _cur_cargo_source) return +1;
+
+	/* Sort towns before industries. */
+	if (a->link->dest->GetType() != b->link->dest->GetType()) {
+		return a->link->dest->GetType() < b->link->dest->GetType() ? +1 : -1;
+	}
+
+	/* Sort by name. */
+	static const CargoLink *last_b = NULL;
+	static char last_name[128];
+
+	char name[128];
+	SetDParam(0, a->link->dest->GetID());
+	GetString(name, a->link->dest->GetType() == ST_TOWN ? STR_TOWN_NAME : STR_INDUSTRY_NAME, lastof(name));
+
+	/* Cache name lookup of 'b', as the sorter is often called
+	 * multiple times with the same 'b'. */
+	if (b->link != last_b) {
+		last_b = b->link;
+
+		SetDParam(0, b->link->dest->GetID());
+		GetString(last_name, b->link->dest->GetType() == ST_TOWN ? STR_TOWN_NAME : STR_INDUSTRY_NAME, lastof(last_name));
+	}
+
+	return strcmp(name, last_name);
+}
+
+CargoDestinationList::CargoDestinationList(const CargoSourceSink *o) : obj(o)
+{
+	this->InvalidateData();
+}
+
+/** Rebuild the link list from the source object. */
+void CargoDestinationList::RebuildList()
+{
+	if (!this->link_list.NeedRebuild()) return;
+
+	this->link_list.Clear();
+	for (CargoID i = 0; i < lengthof(this->obj->cargo_links); i++) {
+		for (const CargoLink *l = this->obj->cargo_links[i].Begin(); l != this->obj->cargo_links[i].End(); l++) {
+			*this->link_list.Append() = GUICargoLink(i, l);
+		}
+	}
+
+	this->link_list.Compact();
+	this->link_list.RebuildDone();
+}
+
+/** Sort the link list. */
+void CargoDestinationList::SortList()
+{
+	_cur_cargo_source = this->obj;
+	this->link_list.Sort(&CargoLinkSorter);
+}
+
+/** Rebuild the list, e.g. when a new cargo link was added. */
+void CargoDestinationList::InvalidateData()
+{
+	this->link_list.ForceRebuild();
+	this->RebuildList();
+	this->SortList();
+}
+
+/** Resort the list, e.g. when a town is renamed. */
+void CargoDestinationList::Resort()
+{
+	this->link_list.ForceResort();
+	this->SortList();
+}
+
+/**
+ * Get the height needed to display the destination list.
+ * @param obj Object to display the destinations of.
+ * @return Height needed for display.
+ */
+uint CargoDestinationList::GetListHeight() const
+{
+	uint lines = 2 + this->link_list.Length();
+	return lines > 2 ? WD_PAR_VSEP_WIDE + lines * FONT_HEIGHT_NORMAL : 0;
+}
+
+/**
+ * Draw the destination list.
+ * @param left The left most position to draw on.
+ * @param right The right most position to draw on.
+ * @param y The top position to start drawing.
+ * @return New \c y value below the drawn text.
+ */
+uint CargoDestinationList::DrawList(uint left, uint right, uint y) const
+{
+	if (this->link_list.Length() == 0) return y;
+
+	DrawString(left + WD_FRAMERECT_LEFT, right - WD_FRAMERECT_RIGHT, y += WD_PAR_VSEP_WIDE + FONT_HEIGHT_NORMAL, STR_VIEW_CARGO_LAST_MONTH_OUT);
+
+	for (const GUICargoLink *l = this->link_list.Begin(); l != this->link_list.End(); l++) {
+		SetDParam(0, l->cid);
+		SetDParam(1, l->link->amount.old_act);
+		SetDParam(2, l->cid);
+		SetDParam(3, l->link->amount.old_max);
+
+		/* Select string according to the destination type. */
+		if (l->link->dest == NULL) {
+			DrawString(left + 2 * WD_FRAMERECT_LEFT, right - WD_FRAMERECT_RIGHT, y += FONT_HEIGHT_NORMAL, STR_VIEW_CARGO_LAST_MONTH_OTHER);
+		} else if (l->link->dest == obj) {
+			DrawString(left + 2 * WD_FRAMERECT_LEFT, right - WD_FRAMERECT_RIGHT, y += FONT_HEIGHT_NORMAL, STR_VIEW_CARGO_LAST_MONTH_LOCAL);
+		} else {
+			SetDParam(4, l->link->dest->GetID());
+			DrawString(left + 2 * WD_FRAMERECT_LEFT, right - WD_FRAMERECT_RIGHT, y += FONT_HEIGHT_NORMAL, l->link->dest->GetType() == ST_TOWN ? STR_VIEW_CARGO_LAST_MONTH_TOWN : STR_VIEW_CARGO_LAST_MONTH_INDUSTRY);
+		}
+	}
+
+	return y + FONT_HEIGHT_NORMAL;
+}
+
+/**
+ * Handle click event onto the destination list.
+ * @param y Position of the click in relative to the top of the destination list.
+ */
+void CargoDestinationList::OnClick(uint y) const
+{
+	/* Subtract caption height. */
+	y -= WD_PAR_VSEP_WIDE + 2 * FONT_HEIGHT_NORMAL;
+
+	/* Calculate line from click pos. */
+	y /= FONT_HEIGHT_NORMAL;
+	if (y >= this->link_list.Length()) return;
+
+	/* Move viewpoint to the position of the destination. */
+	const CargoLink *l = this->link_list[y].link;
+	if (l->dest == NULL) return;
+
+	TileIndex xy = l->dest->GetType() == ST_TOWN ? static_cast<const Town *>(l->dest)->xy : static_cast<const Industry *>(l->dest)->location.tile;
+	if (_ctrl_pressed) {
+		ShowExtraViewPortWindow(xy);
+	} else {
+		ScrollMainWindowToTile(xy);
+	}
+}