mirror of
https://github.com/JGRennison/OpenTTD-patches.git
synced 2024-11-11 13:10:45 +00:00
540 lines
20 KiB
C++
540 lines
20 KiB
C++
/* $Id$ */
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/*
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* This file is part of OpenTTD.
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* 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.
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* 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.
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* 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/>.
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*/
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/** @file object_gui.cpp The GUI for objects. */
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#include "stdafx.h"
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#include "command_func.h"
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#include "newgrf.h"
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#include "newgrf_object.h"
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#include "newgrf_text.h"
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#include "strings_func.h"
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#include "viewport_func.h"
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#include "tilehighlight_func.h"
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#include "window_gui.h"
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#include "window_func.h"
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#include "zoom_func.h"
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#include "widgets/object_widget.h"
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#include "table/strings.h"
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#include "safeguards.h"
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static ObjectClassID _selected_object_class; ///< the currently visible object class
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static int _selected_object_index; ///< the index of the selected object in the current class or -1
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static uint8 _selected_object_view; ///< the view of the selected object
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/** The window used for building objects. */
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class BuildObjectWindow : public Window {
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static const int OBJECT_MARGIN = 4; ///< The margin (in pixels) around an object.
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int line_height; ///< The height of a single line.
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int info_height; ///< The height of the info box.
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Scrollbar *vscroll; ///< The scrollbar.
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/** Scroll #WID_BO_CLASS_LIST so that the selected object class is visible. */
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void EnsureSelectedObjectClassIsVisible()
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{
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uint pos = 0;
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for (int i = 0; i < _selected_object_class; i++) {
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if (ObjectClass::Get((ObjectClassID) i)->GetUISpecCount() == 0) continue;
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pos++;
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}
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this->vscroll->ScrollTowards(pos);
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}
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/**
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* Tests whether the previously selected object can be selected.
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* @return \c true if the selected object is available, \c false otherwise.
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*/
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bool CanRestoreSelectedObject()
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{
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if (_selected_object_index == -1) return false;
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ObjectClass *sel_objclass = ObjectClass::Get(_selected_object_class);
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if ((int)sel_objclass->GetSpecCount() <= _selected_object_index) return false;
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return sel_objclass->GetSpec(_selected_object_index)->IsAvailable();
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}
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/**
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* Calculate the number of columns of the #WID_BO_SELECT_MATRIX widget.
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* @return Number of columns in the matrix.
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*/
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uint GetMatrixColumnCount()
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{
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const NWidgetBase *matrix = this->GetWidget<NWidgetBase>(WID_BO_SELECT_MATRIX);
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return 1 + (matrix->current_x - matrix->smallest_x) / matrix->resize_x;
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}
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public:
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BuildObjectWindow(WindowDesc *desc, WindowNumber number) : Window(desc), info_height(1)
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{
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this->CreateNestedTree();
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this->vscroll = this->GetScrollbar(WID_BO_SCROLLBAR);
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this->FinishInitNested(number);
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ResetObjectToPlace();
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this->vscroll->SetPosition(0);
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this->vscroll->SetCount(ObjectClass::GetUIClassCount());
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NWidgetMatrix *matrix = this->GetWidget<NWidgetMatrix>(WID_BO_SELECT_MATRIX);
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matrix->SetScrollbar(this->GetScrollbar(WID_BO_SELECT_SCROLL));
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this->SelectOtherClass(_selected_object_class);
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if (this->CanRestoreSelectedObject()) {
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this->SelectOtherObject(_selected_object_index);
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} else {
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this->SelectFirstAvailableObject(true);
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}
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assert(ObjectClass::Get(_selected_object_class)->GetUISpecCount() > 0); // object GUI should be disables elsewise
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this->EnsureSelectedObjectClassIsVisible();
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this->GetWidget<NWidgetMatrix>(WID_BO_OBJECT_MATRIX)->SetCount(4);
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}
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virtual void SetStringParameters(int widget) const
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{
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switch (widget) {
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case WID_BO_OBJECT_NAME: {
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const ObjectSpec *spec = ObjectClass::Get(_selected_object_class)->GetSpec(_selected_object_index);
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SetDParam(0, spec != NULL ? spec->name : STR_EMPTY);
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break;
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}
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case WID_BO_OBJECT_SIZE: {
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const ObjectSpec *spec = ObjectClass::Get(_selected_object_class)->GetSpec(_selected_object_index);
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int size = spec == NULL ? 0 : spec->size;
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SetDParam(0, GB(size, HasBit(_selected_object_view, 0) ? 4 : 0, 4));
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SetDParam(1, GB(size, HasBit(_selected_object_view, 0) ? 0 : 4, 4));
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break;
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}
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default: break;
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}
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}
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virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
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{
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switch (widget) {
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case WID_BO_CLASS_LIST: {
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for (uint i = 0; i < ObjectClass::GetClassCount(); i++) {
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ObjectClass *objclass = ObjectClass::Get((ObjectClassID)i);
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if (objclass->GetUISpecCount() == 0) continue;
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size->width = max(size->width, GetStringBoundingBox(objclass->name).width);
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}
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size->width += padding.width;
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this->line_height = FONT_HEIGHT_NORMAL + WD_MATRIX_TOP + WD_MATRIX_BOTTOM;
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resize->height = this->line_height;
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size->height = 5 * this->line_height;
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break;
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}
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case WID_BO_OBJECT_NAME:
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case WID_BO_OBJECT_SIZE:
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/* We do not want the window to resize when selecting objects; better clip texts */
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size->width = 0;
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break;
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case WID_BO_OBJECT_MATRIX: {
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/* Get the right amount of buttons based on the current spec. */
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const ObjectSpec *spec = ObjectClass::Get(_selected_object_class)->GetSpec(_selected_object_index);
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if (spec != NULL) {
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if (spec->views >= 2) size->width += resize->width;
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if (spec->views >= 4) size->height += resize->height;
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}
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resize->width = 0;
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resize->height = 0;
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break;
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}
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case WID_BO_OBJECT_SPRITE: {
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bool two_wide = false; // Whether there will be two widgets next to each other in the matrix or not.
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int height[2] = {0, 0}; // The height for the different views; in this case views 1/2 and 4.
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/* Get the height and view information. */
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for (int i = 0; i < NUM_OBJECTS; i++) {
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const ObjectSpec *spec = ObjectSpec::Get(i);
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if (!spec->IsEverAvailable()) continue;
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two_wide |= spec->views >= 2;
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height[spec->views / 4] = max<int>(ObjectSpec::Get(i)->height, height[spec->views / 4]);
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}
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/* Determine the pixel heights. */
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for (size_t i = 0; i < lengthof(height); i++) {
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height[i] *= ScaleGUITrad(TILE_HEIGHT);
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height[i] += ScaleGUITrad(TILE_PIXELS) + 2 * OBJECT_MARGIN;
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}
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/* Now determine the size of the minimum widgets. When there are two columns, then
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* we want these columns to be slightly less wide. When there are two rows, then
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* determine the size of the widgets based on the maximum size for a single row
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* of widgets, or just the twice the widget height of the two row ones. */
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size->height = max(height[0], height[1] * 2 + 2);
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if (two_wide) {
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size->width = (3 * ScaleGUITrad(TILE_PIXELS) + 2 * OBJECT_MARGIN) * 2 + 2;
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} else {
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size->width = 4 * ScaleGUITrad(TILE_PIXELS) + 2 * OBJECT_MARGIN;
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}
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/* Get the right size for the single widget based on the current spec. */
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const ObjectSpec *spec = ObjectClass::Get(_selected_object_class)->GetSpec(_selected_object_index);
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if (spec != NULL) {
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if (spec->views >= 2) size->width = size->width / 2 - 1;
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if (spec->views >= 4) size->height = size->height / 2 - 1;
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}
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break;
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}
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case WID_BO_INFO:
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size->height = this->info_height;
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break;
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case WID_BO_SELECT_MATRIX:
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fill->height = 1;
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resize->height = 1;
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break;
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case WID_BO_SELECT_IMAGE:
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size->width = ScaleGUITrad(64) + 2;
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size->height = ScaleGUITrad(58) + 2;
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break;
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default: break;
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}
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}
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virtual void DrawWidget(const Rect &r, int widget) const
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{
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switch (GB(widget, 0, 16)) {
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case WID_BO_CLASS_LIST: {
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int y = r.top;
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uint pos = 0;
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for (uint i = 0; i < ObjectClass::GetClassCount(); i++) {
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ObjectClass *objclass = ObjectClass::Get((ObjectClassID)i);
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if (objclass->GetUISpecCount() == 0) continue;
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if (!this->vscroll->IsVisible(pos++)) continue;
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DrawString(r.left + WD_MATRIX_LEFT, r.right - WD_MATRIX_RIGHT, y + WD_MATRIX_TOP, objclass->name,
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((int)i == _selected_object_class) ? TC_WHITE : TC_BLACK);
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y += this->line_height;
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}
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break;
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}
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case WID_BO_OBJECT_SPRITE: {
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const ObjectSpec *spec = ObjectClass::Get(_selected_object_class)->GetSpec(_selected_object_index);
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if (spec == NULL) break;
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/* Height of the selection matrix.
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* Depending on the number of views, the matrix has a 1x1, 1x2, 2x1 or 2x2 layout. To make the previews
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* look nice in all layouts, we use the 4x4 layout (smallest previews) as starting point. For the bigger
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* previews in the layouts with less views we add space homogeneously on all sides, so the 4x4 preview-rectangle
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* is centered in the 2x1, 1x2 resp. 1x1 buttons. */
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uint matrix_height = this->GetWidget<NWidgetMatrix>(WID_BO_OBJECT_MATRIX)->current_y;
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DrawPixelInfo tmp_dpi;
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/* Set up a clipping area for the preview. */
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if (FillDrawPixelInfo(&tmp_dpi, r.left, r.top, r.right - r.left + 1, r.bottom - r.top + 1)) {
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DrawPixelInfo *old_dpi = _cur_dpi;
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_cur_dpi = &tmp_dpi;
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if (spec->grf_prop.grffile == NULL) {
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extern const DrawTileSprites _objects[];
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const DrawTileSprites *dts = &_objects[spec->grf_prop.local_id];
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DrawOrigTileSeqInGUI((r.right - r.left) / 2 - 1, (r.bottom - r.top + matrix_height / 2) / 2 - OBJECT_MARGIN - ScaleGUITrad(TILE_PIXELS), dts, PAL_NONE);
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} else {
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DrawNewObjectTileInGUI((r.right - r.left) / 2 - 1, (r.bottom - r.top + matrix_height / 2) / 2 - OBJECT_MARGIN - ScaleGUITrad(TILE_PIXELS), spec, GB(widget, 16, 16));
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}
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_cur_dpi = old_dpi;
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}
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break;
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}
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case WID_BO_SELECT_IMAGE: {
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ObjectClass *objclass = ObjectClass::Get(_selected_object_class);
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int obj_index = objclass->GetIndexFromUI(GB(widget, 16, 16));
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if (obj_index < 0) break;
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const ObjectSpec *spec = objclass->GetSpec(obj_index);
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if (spec == NULL) break;
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if (!spec->IsAvailable()) {
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GfxFillRect(r.left + 1, r.top + 1, r.right - 1, r.bottom - 1, PC_BLACK, FILLRECT_CHECKER);
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}
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DrawPixelInfo tmp_dpi;
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/* Set up a clipping area for the preview. */
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if (FillDrawPixelInfo(&tmp_dpi, r.left + 1, r.top, (r.right - 1) - (r.left + 1) + 1, r.bottom - r.top + 1)) {
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DrawPixelInfo *old_dpi = _cur_dpi;
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_cur_dpi = &tmp_dpi;
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if (spec->grf_prop.grffile == NULL) {
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extern const DrawTileSprites _objects[];
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const DrawTileSprites *dts = &_objects[spec->grf_prop.local_id];
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DrawOrigTileSeqInGUI((r.right - r.left) / 2 - 1, r.bottom - r.top - OBJECT_MARGIN - ScaleGUITrad(TILE_PIXELS), dts, PAL_NONE);
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} else {
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DrawNewObjectTileInGUI((r.right - r.left) / 2 - 1, r.bottom - r.top - OBJECT_MARGIN - ScaleGUITrad(TILE_PIXELS), spec,
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min(_selected_object_view, spec->views - 1));
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}
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_cur_dpi = old_dpi;
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}
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break;
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}
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case WID_BO_INFO: {
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const ObjectSpec *spec = ObjectClass::Get(_selected_object_class)->GetSpec(_selected_object_index);
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if (spec == NULL) break;
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/* Get the extra message for the GUI */
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if (HasBit(spec->callback_mask, CBM_OBJ_FUND_MORE_TEXT)) {
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uint16 callback_res = GetObjectCallback(CBID_OBJECT_FUND_MORE_TEXT, 0, 0, spec, NULL, INVALID_TILE, _selected_object_view);
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if (callback_res != CALLBACK_FAILED && callback_res != 0x400) {
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if (callback_res > 0x400) {
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ErrorUnknownCallbackResult(spec->grf_prop.grffile->grfid, CBID_OBJECT_FUND_MORE_TEXT, callback_res);
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} else {
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StringID message = GetGRFStringID(spec->grf_prop.grffile->grfid, 0xD000 + callback_res);
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if (message != STR_NULL && message != STR_UNDEFINED) {
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StartTextRefStackUsage(spec->grf_prop.grffile, 6);
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/* Use all the available space left from where we stand up to the
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* end of the window. We ALSO enlarge the window if needed, so we
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* can 'go' wild with the bottom of the window. */
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int y = DrawStringMultiLine(r.left, r.right, r.top, UINT16_MAX, message, TC_ORANGE) - r.top;
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StopTextRefStackUsage();
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if (y > this->info_height) {
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BuildObjectWindow *bow = const_cast<BuildObjectWindow *>(this);
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bow->info_height = y + 2;
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bow->ReInit();
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}
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}
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}
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}
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}
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}
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}
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}
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/**
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* Select the specified object class.
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* @param object_class_index Object class index to select.
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*/
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void SelectOtherClass(ObjectClassID object_class_index)
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{
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_selected_object_class = object_class_index;
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this->GetWidget<NWidgetMatrix>(WID_BO_SELECT_MATRIX)->SetCount(ObjectClass::Get(_selected_object_class)->GetUISpecCount());
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}
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/**
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* Select the specified object in #_selected_object_class class.
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* @param object_index Object index to select, \c -1 means select nothing.
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*/
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void SelectOtherObject(int object_index)
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{
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_selected_object_index = object_index;
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if (_selected_object_index != -1) {
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const ObjectSpec *spec = ObjectClass::Get(_selected_object_class)->GetSpec(_selected_object_index);
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_selected_object_view = min(_selected_object_view, spec->views - 1);
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this->ReInit();
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} else {
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_selected_object_view = 0;
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}
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if (_selected_object_index != -1) {
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SetObjectToPlaceWnd(SPR_CURSOR_TRANSMITTER, PAL_NONE, HT_RECT, this);
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}
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this->UpdateButtons(_selected_object_class, _selected_object_index, _selected_object_view);
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}
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void UpdateSelectSize()
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{
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if (_selected_object_index == -1) {
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SetTileSelectSize(1, 1);
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} else {
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const ObjectSpec *spec = ObjectClass::Get(_selected_object_class)->GetSpec(_selected_object_index);
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int w = GB(spec->size, HasBit(_selected_object_view, 0) ? 4 : 0, 4);
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int h = GB(spec->size, HasBit(_selected_object_view, 0) ? 0 : 4, 4);
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SetTileSelectSize(w, h);
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}
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}
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/**
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* Update buttons to show the selection to the user.
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* @param sel_class The class of the selected object.
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* @param sel_index Index of the object to select, or \c -1 .
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* @param sel_view View of the object to select.
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*/
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void UpdateButtons(ObjectClassID sel_class, int sel_index, uint sel_view)
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{
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int view_number, object_number;
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if (sel_index == -1) {
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view_number = -1; // If no object selected, also hide the selected view.
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object_number = -1;
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} else {
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view_number = sel_view;
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object_number = ObjectClass::Get(sel_class)->GetUIFromIndex(sel_index);
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}
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this->GetWidget<NWidgetMatrix>(WID_BO_OBJECT_MATRIX)->SetClicked(view_number);
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this->GetWidget<NWidgetMatrix>(WID_BO_SELECT_MATRIX)->SetClicked(object_number);
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this->UpdateSelectSize();
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this->SetDirty();
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}
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virtual void OnResize()
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{
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this->vscroll->SetCapacityFromWidget(this, WID_BO_CLASS_LIST);
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}
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virtual void OnClick(Point pt, int widget, int click_count)
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{
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switch (GB(widget, 0, 16)) {
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case WID_BO_CLASS_LIST: {
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int num_clicked = this->vscroll->GetPosition() + (pt.y - this->nested_array[widget]->pos_y) / this->line_height;
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if (num_clicked >= (int)ObjectClass::GetUIClassCount()) break;
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this->SelectOtherClass(ObjectClass::GetUIClass(num_clicked));
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this->SelectFirstAvailableObject(false);
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break;
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}
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case WID_BO_SELECT_IMAGE: {
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ObjectClass *objclass = ObjectClass::Get(_selected_object_class);
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int num_clicked = objclass->GetIndexFromUI(GB(widget, 16, 16));
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if (num_clicked >= 0 && objclass->GetSpec(num_clicked)->IsAvailable()) this->SelectOtherObject(num_clicked);
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break;
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}
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case WID_BO_OBJECT_SPRITE:
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if (_selected_object_index != -1) {
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_selected_object_view = GB(widget, 16, 16);
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this->SelectOtherObject(_selected_object_index); // Re-select the object for a different view.
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}
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break;
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}
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}
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virtual void OnPlaceObject(Point pt, TileIndex tile)
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{
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DoCommandP(tile, ObjectClass::Get(_selected_object_class)->GetSpec(_selected_object_index)->Index(),
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_selected_object_view, CMD_BUILD_OBJECT | CMD_MSG(STR_ERROR_CAN_T_BUILD_OBJECT), CcTerraform);
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}
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virtual void OnPlaceObjectAbort()
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{
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this->UpdateButtons(_selected_object_class, -1, _selected_object_view);
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}
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/**
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* Select the first available object.
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* @param change_class If true, change the class if no object in the current
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* class is available.
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*/
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void SelectFirstAvailableObject(bool change_class)
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{
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/* First try to select an object in the selected class. */
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ObjectClass *sel_objclass = ObjectClass::Get(_selected_object_class);
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for (uint i = 0; i < sel_objclass->GetSpecCount(); i++) {
|
|
const ObjectSpec *spec = sel_objclass->GetSpec(i);
|
|
if (spec->IsAvailable()) {
|
|
this->SelectOtherObject(i);
|
|
return;
|
|
}
|
|
}
|
|
if (change_class) {
|
|
/* If that fails, select the first available object
|
|
* from a random class. */
|
|
for (ObjectClassID j = OBJECT_CLASS_BEGIN; j < OBJECT_CLASS_MAX; j++) {
|
|
ObjectClass *objclass = ObjectClass::Get(j);
|
|
for (uint i = 0; i < objclass->GetSpecCount(); i++) {
|
|
const ObjectSpec *spec = objclass->GetSpec(i);
|
|
if (spec->IsAvailable()) {
|
|
this->SelectOtherClass(j);
|
|
this->SelectOtherObject(i);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
/* If all objects are unavailable, select nothing... */
|
|
if (ObjectClass::Get(_selected_object_class)->GetUISpecCount() == 0) {
|
|
/* ... but make sure that the class is not empty. */
|
|
for (ObjectClassID j = OBJECT_CLASS_BEGIN; j < OBJECT_CLASS_MAX; j++) {
|
|
if (ObjectClass::Get(j)->GetUISpecCount() > 0) {
|
|
this->SelectOtherClass(j);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
this->SelectOtherObject(-1);
|
|
}
|
|
};
|
|
|
|
static const NWidgetPart _nested_build_object_widgets[] = {
|
|
NWidget(NWID_HORIZONTAL),
|
|
NWidget(WWT_CLOSEBOX, COLOUR_DARK_GREEN),
|
|
NWidget(WWT_CAPTION, COLOUR_DARK_GREEN), SetDataTip(STR_OBJECT_BUILD_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
|
|
NWidget(WWT_DEFSIZEBOX, COLOUR_DARK_GREEN),
|
|
EndContainer(),
|
|
NWidget(WWT_PANEL, COLOUR_DARK_GREEN),
|
|
NWidget(NWID_HORIZONTAL), SetPadding(2, 0, 0, 0),
|
|
NWidget(NWID_VERTICAL),
|
|
NWidget(NWID_HORIZONTAL), SetPadding(0, 5, 2, 5),
|
|
NWidget(WWT_MATRIX, COLOUR_GREY, WID_BO_CLASS_LIST), SetFill(1, 0), SetMatrixDataTip(1, 0, STR_OBJECT_BUILD_CLASS_TOOLTIP), SetScrollbar(WID_BO_SCROLLBAR),
|
|
NWidget(NWID_VSCROLLBAR, COLOUR_GREY, WID_BO_SCROLLBAR),
|
|
EndContainer(),
|
|
NWidget(NWID_HORIZONTAL), SetPadding(0, 5, 0, 5),
|
|
NWidget(NWID_MATRIX, COLOUR_DARK_GREEN, WID_BO_OBJECT_MATRIX), SetPIP(0, 2, 0),
|
|
NWidget(WWT_PANEL, COLOUR_GREY, WID_BO_OBJECT_SPRITE), SetDataTip(0x0, STR_OBJECT_BUILD_PREVIEW_TOOLTIP), EndContainer(),
|
|
EndContainer(),
|
|
EndContainer(),
|
|
NWidget(WWT_TEXT, COLOUR_DARK_GREEN, WID_BO_OBJECT_NAME), SetDataTip(STR_ORANGE_STRING, STR_NULL), SetPadding(2, 5, 2, 5),
|
|
NWidget(WWT_TEXT, COLOUR_DARK_GREEN, WID_BO_OBJECT_SIZE), SetDataTip(STR_OBJECT_BUILD_SIZE, STR_NULL), SetPadding(2, 5, 2, 5),
|
|
EndContainer(),
|
|
NWidget(WWT_PANEL, COLOUR_DARK_GREEN), SetScrollbar(WID_BO_SELECT_SCROLL),
|
|
NWidget(NWID_HORIZONTAL),
|
|
NWidget(NWID_MATRIX, COLOUR_DARK_GREEN, WID_BO_SELECT_MATRIX), SetFill(0, 1), SetPIP(0, 2, 0),
|
|
NWidget(WWT_PANEL, COLOUR_DARK_GREEN, WID_BO_SELECT_IMAGE), SetMinimalSize(66, 60), SetDataTip(0x0, STR_OBJECT_BUILD_TOOLTIP),
|
|
SetFill(0, 0), SetResize(0, 0), SetScrollbar(WID_BO_SELECT_SCROLL),
|
|
EndContainer(),
|
|
EndContainer(),
|
|
NWidget(NWID_VSCROLLBAR, COLOUR_DARK_GREEN, WID_BO_SELECT_SCROLL),
|
|
EndContainer(),
|
|
EndContainer(),
|
|
EndContainer(),
|
|
NWidget(NWID_HORIZONTAL),
|
|
NWidget(WWT_EMPTY, INVALID_COLOUR, WID_BO_INFO), SetPadding(2, 5, 0, 5), SetFill(1, 0), SetResize(1, 0),
|
|
NWidget(NWID_VERTICAL),
|
|
NWidget(WWT_PANEL, COLOUR_DARK_GREEN), SetFill(0, 1), EndContainer(),
|
|
NWidget(WWT_RESIZEBOX, COLOUR_DARK_GREEN),
|
|
EndContainer(),
|
|
EndContainer(),
|
|
EndContainer(),
|
|
};
|
|
|
|
static WindowDesc _build_object_desc(
|
|
WDP_AUTO, "build_object", 0, 0,
|
|
WC_BUILD_OBJECT, WC_BUILD_TOOLBAR,
|
|
WDF_CONSTRUCTION,
|
|
_nested_build_object_widgets, lengthof(_nested_build_object_widgets)
|
|
);
|
|
|
|
/**
|
|
* Show our object picker.
|
|
* @param w The toolbar window we're associated with.
|
|
*/
|
|
void ShowBuildObjectPicker()
|
|
{
|
|
/* Don't show the place object button when there are no objects to place. */
|
|
if (ObjectClass::GetUIClassCount() > 0) {
|
|
AllocateWindowDescFront<BuildObjectWindow>(&_build_object_desc, 0);
|
|
}
|
|
}
|
|
|
|
/** Reset all data of the object GUI. */
|
|
void InitializeObjectGui()
|
|
{
|
|
_selected_object_class = (ObjectClassID)0;
|
|
}
|