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Location: cpp/openttd-patchpack/source/src/widgets/dropdown_type.h - annotation
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(svn r19502) -Codechange: During NewGRF loading, store rail type labels in temporary data and process after loading has finished. This avoids deactivated rail vehicles being reactivated if the climate property is set after the rail type property.
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/*
* 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 dropdown_type.h Types related to the drop down widget. */
#ifndef WIDGETS_DROPDOWN_TYPE_H
#define WIDGETS_DROPDOWN_TYPE_H
#include "../window_type.h"
#include "../gfx_func.h"
#include <list>
/**
* Base list item class from which others are derived. If placed in a list it
* will appear as a horizontal line in the menu.
*/
class DropDownListItem {
public:
int result; ///< Result code to return to window on selection
bool masked; ///< Masked and unselectable item
DropDownListItem(int result, bool masked) : result(result), masked(masked) {}
virtual ~DropDownListItem() {}
virtual bool Selectable() const { return false; }
virtual uint Height(uint width) const { return FONT_HEIGHT_NORMAL; }
virtual uint Width() const { return 0; }
virtual void Draw(int left, int right, int top, int bottom, bool sel, int bg_colour) const;
};
/**
* Common string list item.
*/
class DropDownListStringItem : public DropDownListItem {
public:
StringID string; ///< String ID of item
DropDownListStringItem(StringID string, int result, bool masked) : DropDownListItem(result, masked), string(string) {}
virtual ~DropDownListStringItem() {}
virtual bool Selectable() const { return true; }
virtual uint Width() const;
virtual void Draw(int left, int right, int top, int bottom, bool sel, int bg_colour) const;
virtual StringID String() const { return this->string; }
};
/**
* String list item with parameters.
*/
class DropDownListParamStringItem : public DropDownListStringItem {
public:
uint64 decode_params[10]; ///< Parameters of the string
DropDownListParamStringItem(StringID string, int result, bool masked) : DropDownListStringItem(string, result, masked) {}
virtual ~DropDownListParamStringItem() {}
virtual StringID String() const;
virtual void SetParam(uint index, uint64 value) { decode_params[index] = value; }
};
/**
* List item containing a C char string.
*/
class DropDownListCharStringItem : public DropDownListItem {
public:
const char *string;
DropDownListCharStringItem(const char *string, int result, bool masked) : DropDownListItem(result, masked), string(string) {}
virtual ~DropDownListCharStringItem() {}
virtual bool Selectable() const { return true; }
virtual uint Width() const;
virtual void Draw(int left, int right, int top, int bottom, bool sel, int bg_colour) const;
};
/**
* A drop down list is a collection of drop down list items.
*/
typedef std::list<DropDownListItem *> DropDownList;
/**
* Show a drop down list.
* @param w Parent window for the list.
* @param list Prepopulated DropDownList. Will be deleted when the list is
* closed.
* @param selected The initially selected list item.
* @param button The widget within the parent window that is used to determine
* the list's location.
* @param width Override the width determined by the selected widget.
* @param auto_width Maximum width is determined by the widest item in the list.
* @param instant_close Set to true if releasing mouse button should close the
* list regardless of where the cursor is.
*/
void ShowDropDownList(Window *w, DropDownList *list, int selected, int button, uint width = 0, bool auto_width = false, bool instant_close = false);
#endif /* WIDGETS_DROPDOWN_TYPE_H */
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