516 lines
10 KiB
C
516 lines
10 KiB
C
/*
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Copyright (C) 2018 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 "widgets.h"
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static void loadWidgetGroup(char *filename);
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static void loadWidgets(void);
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static void createWidgetOptions(Widget *w, char *options);
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static void selectWidget(int dir);
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static void updateWidgetValue(int dir);
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static void handleInputWidget(void);
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static Widget widgets[MAX_WIDGETS];
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static Widget *selectedWidget;
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static int widgetIndex;
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static int numWidgets;
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static Atlas *left;
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static Atlas *right;
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static Texture *atlasTexture;
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static SDL_Rect frame;
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void initWidgets(void)
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{
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memset(widgets, 0, sizeof(Widget) * MAX_WIDGETS);
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numWidgets = 0;
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selectedWidget = NULL;
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loadWidgets();
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atlasTexture = getTexture("gfx/atlas/atlas.png");
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left = getImageFromAtlas("gfx/ui/left.png");
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right = getImageFromAtlas("gfx/ui/right.png");
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}
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void doWidgets(void)
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{
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if (!app.awaitingWidgetInput)
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{
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if (isControl(CONTROL_UP) || app.keyboard[SDL_SCANCODE_UP])
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{
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selectWidget(-1);
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app.keyboard[SDL_SCANCODE_UP] = 0;
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clearControl(CONTROL_UP);
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}
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if (isControl(CONTROL_DOWN) || app.keyboard[SDL_SCANCODE_DOWN])
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{
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selectWidget(1);
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app.keyboard[SDL_SCANCODE_DOWN] = 0;
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clearControl(CONTROL_DOWN);
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}
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if (isControl(CONTROL_LEFT) || app.keyboard[SDL_SCANCODE_LEFT])
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{
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updateWidgetValue(-1);
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}
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if (isControl(CONTROL_RIGHT) || app.keyboard[SDL_SCANCODE_RIGHT])
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{
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updateWidgetValue(1);
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}
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if (isControl(CONTROL_FIRE) || app.keyboard[SDL_SCANCODE_RETURN] || app.keyboard[SDL_SCANCODE_SPACE])
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{
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if (selectedWidget->type != WT_INPUT)
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{
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selectedWidget->action();
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}
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else if (!isControl(CONTROL_FIRE))
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{
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app.awaitingWidgetInput = 1;
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app.lastKeyPressed = 0;
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app.lastButtonPressed = -1;
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}
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app.keyboard[SDL_SCANCODE_SPACE] = app.keyboard[SDL_SCANCODE_RETURN] = 0;
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clearControl(CONTROL_FIRE);
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}
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}
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else
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{
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handleInputWidget();
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}
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}
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static void updateWidgetValue(int dir)
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{
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if (selectedWidget->type == WT_SLIDER)
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{
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selectedWidget->value[0] = limit(selectedWidget->value[0] + dir, selectedWidget->minValue, selectedWidget->maxValue);
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selectedWidget->action();
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}
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else if (selectedWidget->type == WT_SPINNER)
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{
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selectedWidget->value[0] = limit(selectedWidget->value[0] + dir, 0, selectedWidget->numOptions - 1);
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selectedWidget->action();
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app.keyboard[SDL_SCANCODE_LEFT] = app.keyboard[SDL_SCANCODE_RIGHT] = 0;
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clearControl(CONTROL_LEFT);
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clearControl(CONTROL_RIGHT);
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playSound(SND_MENU_SELECT, 0);
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}
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}
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static void handleInputWidget(void)
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{
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if (app.keyboard[SDL_SCANCODE_ESCAPE])
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{
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app.awaitingWidgetInput = 0;
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}
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else if (app.keyboard[SDL_SCANCODE_BACKSPACE])
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{
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selectedWidget->value[0] = 0;
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selectedWidget->value[1] = -1;
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app.awaitingWidgetInput = 0;
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}
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else if (app.lastKeyPressed != 0 || app.lastButtonPressed != -1)
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{
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if (app.lastKeyPressed != 0)
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{
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selectedWidget->value[0] = app.lastKeyPressed;
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}
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if (app.lastButtonPressed != -1)
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{
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selectedWidget->value[1] = app.lastButtonPressed;
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}
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app.awaitingWidgetInput = 0;
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}
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}
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void drawWidgets(void)
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{
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int i, j, x, tw, th, outline;
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Widget *w;
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for (i = 0 ; i < numWidgets ; i++)
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{
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w = &widgets[i];
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if (w->visible)
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{
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if (w != selectedWidget)
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{
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drawRect(w->x, w->y, w->w, w->h, 0, 0, 0, 255);
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drawOutlineRect(w->x, w->y, w->w, w->h, 0, 128, 0, 255);
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}
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else
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{
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drawRect(w->x, w->y, w->w, w->h, 0, 128, 0, 255);
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drawOutlineRect(w->x, w->y, w->w, w->h, 0, 255, 0, 255);
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}
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drawText(w->x + w->w / 2, w->y + 2, 24, TA_CENTER, colors.white, w->label);
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outline = (w == selectedWidget) ? 255 : 192;
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switch (w->type)
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{
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case WT_SLIDER:
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drawRect(w->x + w->w + 25, w->y, 500 * (w->value[0] * 1.0 / w->maxValue), 40, 0, 128, 0, 255);
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drawOutlineRect(w->x + w->w + 25, w->y, 500, 40, 0, outline, 0, 255);
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break;
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case WT_SPINNER:
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x = w->x + w->w + 25;
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for (j = 0 ; j < w->numOptions ; j++)
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{
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calcTextDimensions(w->options[j], 24, &tw, &th);
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tw += 25;
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if (j == w->value[0])
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{
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drawRect(x, w->y, tw, w->h, 0, 128, 0, 255);
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drawOutlineRect(x, w->y, tw, w->h, 0, outline, 0, 255);
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}
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drawText(x + tw / 2, w->y + 2, 24, TA_CENTER, colors.white, w->options[j]);
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x += tw + 25;
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}
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break;
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case WT_INPUT:
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x = w->x + w->w + 25;
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drawRect(x, w->y, 200, w->h, 0, 0, 0, 255);
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drawOutlineRect(x, w->y, 200, w->h, 0, outline, 0, 255);
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if (app.awaitingWidgetInput && w == selectedWidget)
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{
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drawText(x + 100, w->y + 2, 24, TA_CENTER, colors.white, "...");
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}
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else if (w->value[0] != -1 && w->value[1] != -1)
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{
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drawText(x + 100, w->y + 2, 24, TA_CENTER, colors.white, "%s or Btn %d", SDL_GetScancodeName(w->value[0]), w->value[1]);
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}
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else if (w->value[0] != -1)
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{
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drawText(x + 100, w->y + 2, 24, TA_CENTER, colors.white, "%s", SDL_GetScancodeName(w->value[0]));
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}
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else if (w->value[1] != -1)
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{
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drawText(x + 100, w->y + 2, 24, TA_CENTER, colors.white, "Btn %d", w->value[1]);
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}
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break;
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}
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if (w->disabled)
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{
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drawRect(w->x, w->y, w->w, w->h, 0, 0, 0, 160);
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}
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}
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}
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}
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void drawWidgetFrame(void)
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{
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drawRect(frame.x, frame.y, frame.w, frame.h, 0, 0, 0, 192);
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drawOutlineRect(frame.x, frame.y, frame.w, frame.h, 255, 255, 255, 255);
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}
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static void selectWidget(int dir)
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{
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int oldWidgetIndex, valid;
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oldWidgetIndex = widgetIndex;
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valid = 0;
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do
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{
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widgetIndex += dir;
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if (widgetIndex < 0)
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{
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widgetIndex = numWidgets - 1;
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}
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if (widgetIndex >= numWidgets)
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{
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widgetIndex = 0;
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}
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selectedWidget = &widgets[widgetIndex];
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valid = selectedWidget->visible && !selectedWidget->disabled;
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} while (!valid);
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if (oldWidgetIndex != widgetIndex)
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{
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playSound(SND_MENU_NAV, 0);
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}
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}
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Widget *getWidget(char *name, char *group)
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{
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int i;
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Widget *w;
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for (i = 0 ; i < numWidgets ; i++)
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{
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w = &widgets[i];
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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_ERROR, "No such widget '%s', '%s'", name, group);
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exit(1);
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return NULL;
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}
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void setSelectedWidget(char *name, char *group)
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{
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Widget *w;
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int i;
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for (i = 0 ; i < numWidgets ; i++)
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{
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w = &widgets[i];
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if (strcmp(w->name, name) == 0 && strcmp(w->group, group) == 0)
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{
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widgetIndex = i;
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selectedWidget = w;
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return;
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}
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}
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}
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Widget *getSelectedWidget(void)
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{
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return selectedWidget;
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}
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Widget *selectWidgetAt(int x, int y)
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{
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Widget *w;
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int i;
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for (i = 0 ; i < numWidgets ; i++)
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{
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w = &widgets[i];
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if (w->visible && collision(w->x, w->y, w->w, w->h, x, y, 1, 1))
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{
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if (w != selectedWidget)
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{
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playSound(SND_MENU_NAV, 0);
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}
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widgetIndex = i;
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selectedWidget = w;
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return w;
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}
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}
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selectedWidget = NULL;
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return NULL;
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}
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void hideAllWidgets(void)
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{
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int i;
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for (i = 0 ; i < numWidgets ; i++)
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{
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widgets[i].visible = 0;
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}
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selectedWidget = NULL;
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frame.x = frame.y = frame.w = frame.h = 0;
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}
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void showWidgetGroup(char *group)
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{
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int i;
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Widget *w;
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hideAllWidgets();
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frame.x = frame.y = UI_WIDTH;
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frame.w = frame.h = 0;
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for (i = 0 ; i < numWidgets ; i++)
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{
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w = &widgets[i];
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if (strcmp(w->group, group) == 0)
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{
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if (selectedWidget == NULL)
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{
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selectedWidget = w;
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widgetIndex = i;
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}
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w->visible = 1;
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frame.x = MIN(w->x - 25, frame.x);
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frame.y = MIN(w->y - 25, frame.y);
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frame.w = MAX(w->w + 50, frame.w);
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frame.h = MAX(w->y + w->h + 25, frame.h);
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}
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}
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frame.h -= frame.y;
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}
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static void loadWidgets(void)
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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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loadWidgetGroup(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 loadWidgetGroup(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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for (node = root->child ; node != NULL ; node = node->next)
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{
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if (numWidgets >= MAX_WIDGETS)
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{
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SDL_LogMessage(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_ERROR, "Out of widget space.");
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exit(1);
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}
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w = &widgets[numWidgets];
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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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STRNCPY(w->label, _(cJSON_GetObjectItem(node, "label")->valuestring), MAX_NAME_LENGTH);
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w->x = cJSON_GetObjectItem(node, "x")->valueint;
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w->y = cJSON_GetObjectItem(node, "y")->valueint;
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w->w = cJSON_GetObjectItem(node, "w")->valueint;
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w->h = cJSON_GetObjectItem(node, "h")->valueint;
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w->type = lookup(cJSON_GetObjectItem(node, "type")->valuestring);
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if (w->x == -1)
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{
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w->x = (UI_WIDTH - w->w) / 2;
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}
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switch (w->type)
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{
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case WT_SPINNER:
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createWidgetOptions(w, cJSON_GetObjectItem(node, "options")->valuestring);
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break;
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case WT_SLIDER:
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w->minValue = cJSON_GetObjectItem(node, "minValue")->valueint;
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w->maxValue = cJSON_GetObjectItem(node, "maxValue")->valueint;
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break;
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case WT_INPUT:
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break;
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default:
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break;
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}
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numWidgets++;
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}
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cJSON_Delete(root);
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free(text);
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}
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static void createWidgetOptions(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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w->options[i] = malloc(strlen(_(option)) + 1);
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strcpy(w->options[i], _(option));
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SDL_LogMessage(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_DEBUG, "widget.option[%d] = %s", i, w->options[i]);
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option = strtok(NULL, "|");
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i++;
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}
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}
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void destroy(void)
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{
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}
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