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git://projects.qi-hardware.com/antorcha.git
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tools/ant-gui/: graphical image selector (WIP)
This commit is contained in:
Werner Almesberger
parent
f38d3201d1
commit
64f441ce3a
37
tools/ant-gui/Makefile
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37
tools/ant-gui/Makefile
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#
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# tools/ant-gui/Makefile - Build the Antorcha GUI
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#
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# Written 2012 by Werner Almesberger
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# Copyright 2012 Werner Almesberger
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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MAIN = ant-gui
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CFLAGS = -g -Wall -I.. $(shell sdl-config --cflags) \
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$(if $(BEN), -static)
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LDLIBS = -L../libant -lant $(shell sdl-config --libs) -lSDL_gfx
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OBJS = ant-gui.o
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.PHONY: all ben clean spotless
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all: $(MAIN)
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ben:
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$(MAKE) BEN=y CC=mipsel-openwrt-linux-gcc
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$(MAIN): $(OBJS)
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$(CC) $(CFLAGS) -o $@ $(OBJS) $(LDLIBS)
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clean:
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rm -f $(OBJS)
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spotless: clean
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rm -f $(MAIN)
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206
tools/ant-gui/ant-gui.c
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206
tools/ant-gui/ant-gui.c
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/*
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* tools/ant-gui/ant-gui.c - Antorcha GUI
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*
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* Written 2012 by Werner Almesberger
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* Copyright 2012 Werner Almesberger
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <stdint.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include "SDL.h"
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#include "SDL_gfxPrimitives.h"
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#include <libant/libant.h>
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#define XRES 320 /* canvas width */
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#define YRES 240 /* canvas height */
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#define W 80 /* image width */
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#define H 16 /* image height */
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#define NX (XRES/W)
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#define NY (YRES/H)
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#define FG_SEL_RGBA 0x000000ff
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#define BG_SEL_RGBA 0xffffffff
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#define FG_NORM_RGBA 0xffffffff
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#define BG_NORM_RGBA 0x000000ff
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#define FG_ACT_RGBA 0xff2020ff
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struct img {
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uint8_t *canvas;
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const char *path;
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};
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static void render(SDL_Surface *s, struct img *img, int x, int y,
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int sel, int act)
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{
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int ix, iy;
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uint32_t fg = act ? FG_ACT_RGBA : sel ? FG_SEL_RGBA : FG_NORM_RGBA;
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uint32_t bg = sel ? BG_SEL_RGBA : BG_NORM_RGBA;
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for (iy = 0; iy != H; iy++)
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for (ix = 0; ix != W; ix++)
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if (img->canvas[(iy*W+ix) >> 3] & (1 << (ix & 7)))
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pixelColor(s, x+ix, y+iy, fg);
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else
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pixelColor(s, x+ix, y+iy, bg);
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}
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static void gui(struct img *img, int n)
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{
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SDL_Surface *surf;
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SDL_Event event;
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int x = 0, y = 0, y_top = 0;
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int dx, dy, upload;
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int ix, iy, i;
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int active = -1;
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if (SDL_Init(SDL_INIT_VIDEO) < 0) {
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fprintf(stderr, "SDL_init: %s\n", SDL_GetError());
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exit(1);
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}
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atexit(SDL_Quit);
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surf = SDL_SetVideoMode(XRES, YRES, 0, SDL_SWSURFACE);
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if (!surf) {
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fprintf(stderr, "SDL_SetVideoMode: %s\n", SDL_GetError());
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exit(1);
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}
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while (1) {
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dx = dy = upload = 0;
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SDL_WaitEvent(&event);
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switch (event.type) {
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case SDL_KEYDOWN:
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switch (event.key.keysym.sym) {
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case SDLK_UP:
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if (y > 0)
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dy = -1;
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break;
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case SDLK_DOWN:
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if ((y+1)*NX+x < n)
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dy = 1;
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break;
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case SDLK_RIGHT:
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dx = 1;
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break;
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case SDLK_LEFT:
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dx = -1;
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break;
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case SDLK_RETURN:
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upload = 1;
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break;
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case SDLK_q:
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return;
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default:
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break;
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}
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break;
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case SDL_QUIT:
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return;
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default:
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break;
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}
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x = (x+NX+dx) % NX;
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y += dy;
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if (y*NX+x >= n)
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x = n-y*NX-1;
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if (y < y_top)
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y_top = y;
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if (y >= y_top+NY)
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y_top = y-NY+1;
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if (upload) {
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i = y*NX+x;
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active = i;
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}
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SDL_LockSurface(surf);
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SDL_FillRect(surf, NULL, SDL_MapRGB(surf->format, 0, 0, 0));
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for (iy = 0; iy != NY; iy++)
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for (ix = 0; ix != NX; ix++) {
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i = iy*NX+ix;
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if (i >= n)
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break;
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render(surf, img+i, ix*W, (iy-y_top)*H,
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ix == x && iy == y, i == active);
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}
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SDL_UnlockSurface(surf);
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SDL_UpdateRect(surf, 0, 0, 0, 0);
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}
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}
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static void *generate(const char *path)
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{
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FILE *file;
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char buf[100];
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struct edit *edits = NULL, **last = &edits;
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const char *err;
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char *nl;
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void *res;
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file = fopen(path, "r");
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if (!file) {
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perror(path);
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exit(1);
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}
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while (fgets(buf, sizeof(buf), file)) {
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nl = strchr(buf, '\n');
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if (nl)
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*nl = 0;
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if (edits) {
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*last = malloc(sizeof(struct edit));
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if (!*last)
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abort();
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(*last)->type = edit_nl;
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last = &(*last)->next;
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}
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*last = text2edit(buf, &err);
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if (!*last) {
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fprintf(stderr, "\"%s\": %s\n", buf, err);
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exit(1);
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}
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while (*last)
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last = &(*last)->next;
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}
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fclose(file);
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res = apply_edits(W, H, edits, &err);
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if (!res) {
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fprintf(stderr, "%s\n", err);
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exit(1);
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}
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free_edit(edits);
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return res;
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}
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int main(int argc, char **argv)
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{
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int n = argc-1;
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struct img img[n];
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int i;
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for (i = 0; i != n; i++) {
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img[i].canvas = generate(argv[i+1]);
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img[i].path = argv[i+1];
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}
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gui(img, n);
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exit(1);
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}
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