621 lines
13 KiB
C
621 lines
13 KiB
C
/*
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Copyright (C) 2015-2019,2022 Parallel Realities
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <SDL2/SDL_image.h>
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#include "../common.h"
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#include "../json/cJSON.h"
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#include "../system/atlas.h"
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#include "../system/controls.h"
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#include "../system/draw.h"
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#include "../system/input.h"
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#include "../system/io.h"
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#include "../system/lookup.h"
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#include "../system/sound.h"
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#include "../system/text.h"
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#include "../system/util.h"
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#include "widgets.h"
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extern App app;
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extern Colors colors;
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static void loadWidgets(void);
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static void loadWidgetSet(char *filename);
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static void handleMouse(void);
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static void handleKeyboard(void);
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static void createOptions(Widget *w, char *options);
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static void changeSelectedValue(Widget *w, int dir);
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static void createSelectButtons(Widget *w);
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static void handleControlWidgets(void);
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static void updateSelectWidgets(void);
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static Widget head;
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static Widget *tail;
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static Widget *selectedWidget;
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static Widget *hoverWidget;
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static AtlasImage *optionsLeft;
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static AtlasImage *optionsRight;
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static int drawingWidgets;
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void initWidgets(void)
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{
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memset(&head, 0, sizeof(Widget));
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tail = &head;
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selectedWidget = NULL;
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optionsLeft = getAtlasImage("gfx/widgets/optionsLeft.png");
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optionsRight = getAtlasImage("gfx/widgets/optionsRight.png");
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loadWidgets();
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app.awaitingWidgetInput = drawingWidgets = 0;
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}
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void doWidgets(void)
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{
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if (drawingWidgets)
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{
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updateSelectWidgets();
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handleMouse();
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handleKeyboard();
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if (app.awaitingWidgetInput)
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{
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handleControlWidgets();
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}
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}
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if (hoverWidget != selectedWidget)
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{
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selectedWidget = NULL;
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}
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drawingWidgets = 0;
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}
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static void updateSelectWidgets(void)
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{
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Widget *w;
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for (w = head.next; w != NULL; w = w->next)
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{
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if (w->type == WT_SELECT_BUTTON && w->parent)
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{
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w->visible = 1;
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if (w->value == -1 && w->parent->value == 0)
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{
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w->visible = 0;
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}
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if (w->value == 1 && w->parent->value == w->parent->numOptions - 1)
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{
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w->visible = 0;
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}
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}
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}
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}
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Widget *getWidget(const char *name, const char *group)
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{
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Widget *w;
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for (w = head.next; w != NULL; w = w->next)
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{
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if (strcmp(w->name, name) == 0 && strcmp(w->group, group) == 0)
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{
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return w;
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}
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}
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SDL_LogMessage(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_WARN, "No such widget ('%s', '%s')", name, group);
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return NULL;
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}
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void selectWidget(const char *name, const char *group)
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{
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selectedWidget = getWidget(name, group);
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}
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void drawWidgets(const char *group)
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{
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int mouseOver;
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Widget *w;
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drawingWidgets = 1;
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mouseOver = 0;
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hoverWidget = NULL;
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for (w = head.next; w != NULL; w = w->next)
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{
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if ((app.modalDialog.type == MD_NONE || (app.modalDialog.type != MD_NONE && w->isModal)) && w->visible && strcmp(w->group, group) == 0)
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{
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if (!mouseOver && !app.awaitingWidgetInput)
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{
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mouseOver = (w->type != WT_SELECT && w->enabled && collision(w->rect.x, w->rect.y, w->rect.w, w->rect.h, app.uiMouse.x, app.uiMouse.y, 1, 1));
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if (mouseOver)
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{
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hoverWidget = w;
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if (selectedWidget != w)
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{
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if (w->type == WT_BUTTON || w->type == WT_IMG_BUTTON || w->type == WT_CONTROL_CONFIG)
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{
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playSound(SND_GUI_CLICK);
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}
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selectedWidget = w;
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}
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}
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}
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if (w->texture)
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{
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setAtlasColor(255, 255, 255, 255);
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if (selectedWidget == w)
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{
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setAtlasColor(128, 192, 255, 255);
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}
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blit(w->texture, w->rect.x, w->rect.y, 0);
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}
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else
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{
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SDL_SetRenderDrawColor(app.renderer, 0, 0, 0, 255);
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SDL_RenderFillRect(app.renderer, &w->rect);
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if (w == selectedWidget)
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{
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SDL_SetRenderDrawColor(app.renderer, 64, 128, 200, 255);
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SDL_RenderFillRect(app.renderer, &w->rect);
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SDL_SetRenderDrawColor(app.renderer, 128, 192, 255, 255);
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SDL_RenderDrawRect(app.renderer, &w->rect);
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}
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else
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{
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SDL_SetRenderDrawColor(app.renderer, 64, 64, 64, 255);
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SDL_RenderDrawRect(app.renderer, &w->rect);
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}
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}
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switch (w->type)
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{
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case WT_BUTTON:
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SDL_RenderDrawRect(app.renderer, &w->rect);
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drawText(w->rect.x + (w->rect.w / 2), w->rect.y + 2, 20, TA_CENTER, colors.white, w->text);
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break;
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case WT_SELECT:
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drawText(w->rect.x + 10, w->rect.y + 2, 20, TA_LEFT, colors.white, w->text);
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drawText(w->rect.x + w->rect.w - 10, w->rect.y + 2, 20, TA_RIGHT, colors.white, w->options[w->value]);
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break;
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case WT_CONTROL_CONFIG:
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SDL_RenderDrawRect(app.renderer, &w->rect);
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if (!app.awaitingWidgetInput || (app.awaitingWidgetInput && w != selectedWidget))
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{
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if (strlen(w->options[0]) && strlen(w->options[1]))
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{
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drawText(w->rect.x + (w->rect.w / 2), w->rect.y + 2, 20, TA_CENTER, colors.white, "%s or %s", w->options[0], w->options[1]);
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}
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else if (strlen(w->options[0]))
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{
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drawText(w->rect.x + (w->rect.w / 2), w->rect.y + 2, 20, TA_CENTER, colors.white, "%s", w->options[0]);
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}
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else if (strlen(w->options[1]))
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{
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drawText(w->rect.x + (w->rect.w / 2), w->rect.y + 2, 20, TA_CENTER, colors.white, "%s", w->options[1]);
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}
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else
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{
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drawText(w->rect.x + (w->rect.w / 2), w->rect.y + 2, 20, TA_CENTER, colors.white, "");
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}
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}
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else
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{
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drawText(w->rect.x + (w->rect.w / 2), w->rect.y + 2, 20, TA_CENTER, colors.white, "...");
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}
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break;
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}
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if (!w->enabled)
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{
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SDL_SetRenderDrawBlendMode(app.renderer, SDL_BLENDMODE_BLEND);
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SDL_SetRenderDrawColor(app.renderer, 0, 0, 0, 192);
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SDL_RenderFillRect(app.renderer, &w->rect);
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SDL_SetRenderDrawBlendMode(app.renderer, SDL_BLENDMODE_NONE);
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}
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}
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}
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}
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static void changeSelectedValue(Widget *w, int dir)
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{
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int oldOption = w->value;
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w->value += dir;
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w->value = MIN(MAX(0, w->value), w->numOptions - 1);
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w->onChange(w->options[w->value]);
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if (oldOption != w->value)
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{
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playSound(SND_GUI_CLICK);
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}
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}
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void setWidgetOption(const char *name, const char *group, const char *value)
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{
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int i;
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Widget *w = getWidget(name, group);
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if (w)
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{
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for (i = 0; i < w->numOptions; i++)
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{
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if (strcmp(w->options[i], value) == 0)
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{
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w->value = i;
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return;
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}
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}
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}
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}
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static void handleMouse(void)
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{
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Widget *old;
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if (selectedWidget && collision(selectedWidget->rect.x, selectedWidget->rect.y, selectedWidget->rect.w, selectedWidget->rect.h, app.uiMouse.x, app.uiMouse.y, 1, 1))
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{
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if (app.mouse.button[SDL_BUTTON_LEFT])
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{
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switch (selectedWidget->type)
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{
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case WT_BUTTON:
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case WT_IMG_BUTTON:
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if (selectedWidget->action)
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{
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playSound(SND_GUI_SELECT);
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old = selectedWidget;
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selectedWidget->action();
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if (old == selectedWidget)
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{
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selectedWidget = NULL;
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}
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app.mouse.button[SDL_BUTTON_LEFT] = 0;
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}
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break;
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case WT_SELECT_BUTTON:
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changeSelectedValue(selectedWidget->parent, selectedWidget->value);
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app.mouse.button[SDL_BUTTON_LEFT] = 0;
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break;
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case WT_CONTROL_CONFIG:
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if (!app.awaitingWidgetInput)
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{
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app.awaitingWidgetInput = 1;
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app.lastKeyPressed = app.lastButtonPressed = -1;
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playSound(SND_GUI_SELECT);
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}
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app.mouse.button[SDL_BUTTON_LEFT] = 0;
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break;
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}
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}
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}
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}
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static void handleKeyboard(void)
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{
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Widget *old;
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if (selectedWidget != NULL)
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{
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if (selectedWidget->type == WT_BUTTON)
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{
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if (app.keyboard[SDL_SCANCODE_SPACE] || app.keyboard[SDL_SCANCODE_RETURN])
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{
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playSound(SND_GUI_SELECT);
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old = selectedWidget;
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selectedWidget->action();
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if (old == selectedWidget)
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{
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selectedWidget = NULL;
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}
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app.keyboard[SDL_SCANCODE_SPACE] = app.keyboard[SDL_SCANCODE_RETURN] = 0;
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}
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}
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}
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}
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static void handleControlWidgets(void)
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{
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if (app.lastKeyPressed == SDL_SCANCODE_BACKSPACE)
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{
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clearControlConfig(selectedWidget->name);
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app.awaitingWidgetInput = 0;
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}
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else if (app.lastKeyPressed == SDL_SCANCODE_ESCAPE)
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{
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playSound(SND_GUI_CLOSE);
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app.awaitingWidgetInput = 0;
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}
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else
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{
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if (app.lastKeyPressed != -1)
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{
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updateControlKey(selectedWidget->name);
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app.awaitingWidgetInput = 0;
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}
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if (app.lastButtonPressed != -1)
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{
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updateControlButton(selectedWidget->name);
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app.awaitingWidgetInput = 0;
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}
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}
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if (!app.awaitingWidgetInput)
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{
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clearInput();
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}
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app.lastKeyPressed = app.lastButtonPressed = -1;
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}
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static void loadWidgets()
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{
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char **filenames;
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char path[MAX_FILENAME_LENGTH];
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int count, i;
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filenames = getFileList("data/widgets", &count);
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for (i = 0; i < count; i++)
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{
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sprintf(path, "data/widgets/%s", filenames[i]);
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loadWidgetSet(path);
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free(filenames[i]);
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}
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free(filenames);
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}
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static void loadWidgetSet(char *filename)
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{
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cJSON *root, *node;
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char *text;
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Widget *w;
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SDL_LogMessage(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO, "Loading %s", filename);
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text = readFile(filename);
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root = cJSON_Parse(text);
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if (root)
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{
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for (node = root->child; node != NULL; node = node->next)
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{
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w = malloc(sizeof(Widget));
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memset(w, 0, sizeof(Widget));
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w->type = lookup(cJSON_GetObjectItem(node, "type")->valuestring);
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STRNCPY(w->name, cJSON_GetObjectItem(node, "name")->valuestring, MAX_NAME_LENGTH);
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STRNCPY(w->group, cJSON_GetObjectItem(node, "group")->valuestring, MAX_NAME_LENGTH);
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w->rect.x = cJSON_GetObjectItem(node, "x")->valueint;
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w->rect.y = cJSON_GetObjectItem(node, "y")->valueint;
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w->enabled = 1;
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w->visible = 1;
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if (w->rect.x == -1)
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{
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w->rect.x = UI_WIDTH / 2;
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}
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switch (w->type)
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{
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case WT_BUTTON:
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STRNCPY(w->text, _(cJSON_GetObjectItem(node, "text")->valuestring), MAX_NAME_LENGTH);
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w->rect.w = cJSON_GetObjectItem(node, "w")->valueint;
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w->rect.h = cJSON_GetObjectItem(node, "h")->valueint;
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w->rect.x -= w->rect.w / 2;
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w->rect.y -= (w->rect.h / 2) + 8;
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break;
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case WT_IMG_BUTTON:
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w->texture = getAtlasImage(cJSON_GetObjectItem(node, "texture")->valuestring);
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w->rect.w = w->texture->rect.w;
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w->rect.h = w->texture->rect.h;
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break;
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case WT_SELECT:
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STRNCPY(w->text, _(cJSON_GetObjectItem(node, "text")->valuestring), MAX_NAME_LENGTH);
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w->rect.w = cJSON_GetObjectItem(node, "w")->valueint;
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w->rect.h = cJSON_GetObjectItem(node, "h")->valueint;
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w->rect.x -= w->rect.w / 2;
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w->rect.y -= (w->rect.h / 2) + 8;
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createSelectButtons(w);
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createOptions(w, cJSON_GetObjectItem(node, "options")->valuestring);
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break;
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case WT_CONTROL_CONFIG:
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w->rect.w = cJSON_GetObjectItem(node, "w")->valueint;
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w->rect.h = cJSON_GetObjectItem(node, "h")->valueint;
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break;
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default:
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printf("Widget type %d not handled\n", w->type);
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exit(1);
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break;
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}
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tail->next = w;
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tail = w;
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}
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cJSON_Delete(root);
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}
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else
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{
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SDL_LogMessage(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_WARN, "Failed to load '%s'", filename);
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}
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free(text);
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}
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static void createOptions(Widget *w, char *options)
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{
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int i;
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char *option;
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w->numOptions = 1;
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for (i = 0; i < strlen(options); i++)
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{
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if (options[i] == ';')
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{
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w->numOptions++;
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}
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}
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w->options = malloc(w->numOptions * sizeof(char *));
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i = 0;
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option = strtok(options, ";");
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while (option)
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{
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option = _(option);
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w->options[i] = malloc(strlen(option) + 1);
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strcpy(w->options[i], option);
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option = strtok(NULL, ";");
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i++;
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}
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}
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static void createSelectButtons(Widget *w)
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{
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int i;
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Widget *btn;
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for (i = 0; i < 2; i++)
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{
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btn = malloc(sizeof(Widget));
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memcpy(btn, w, sizeof(Widget));
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strcpy(btn->name, "");
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btn->type = WT_SELECT_BUTTON;
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btn->parent = w;
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if (i == 0)
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{
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btn->value = -1;
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btn->rect.x -= 32;
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btn->rect.y += 4;
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btn->texture = optionsLeft;
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}
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else
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{
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btn->value = 1;
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btn->rect.x += btn->rect.w + 8;
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btn->rect.y += 4;
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btn->texture = optionsRight;
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}
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tail->next = btn;
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tail = btn;
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}
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}
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void autoSizeWidgetButtons(char *group, int recenter)
|
|
{
|
|
int width, height, maxWidth;
|
|
Widget *w;
|
|
|
|
maxWidth = 0;
|
|
|
|
for (w = head.next; w != NULL; w = w->next)
|
|
{
|
|
if (strcmp(w->group, group) == 0 && w->type == WT_BUTTON)
|
|
{
|
|
calcTextDimensions(w->text, 20, &width, &height);
|
|
|
|
maxWidth = MAX(MAX(w->rect.w, width), maxWidth);
|
|
}
|
|
}
|
|
|
|
for (w = head.next; w != NULL; w = w->next)
|
|
{
|
|
if (strcmp(w->group, group) == 0 && w->type == WT_BUTTON)
|
|
{
|
|
w->rect.w = maxWidth + 20;
|
|
|
|
if (recenter)
|
|
{
|
|
w->rect.x = (UI_WIDTH / 2) - (w->rect.w / 2);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void destroyWidgets(void)
|
|
{
|
|
int i;
|
|
Widget *w = head.next;
|
|
Widget *next;
|
|
|
|
while (w)
|
|
{
|
|
for (i = 0; i < w->numOptions; i++)
|
|
{
|
|
free(w->options[i]);
|
|
}
|
|
|
|
free(w->options);
|
|
|
|
next = w->next;
|
|
free(w);
|
|
w = next;
|
|
}
|
|
|
|
head.next = NULL;
|
|
}
|