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https://github.com/Ryujinx/SDL.git
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b48e54aafe
Jonas Kulla The configure script didn't differentiate between Linux and Android, unconditionally compiling in the unix implementation of SDL_sysfilesystem.c. I'm probably one of the very few people building SDL for android using classic configure + standalone toolchain, so this has gone undetected all along.
374 lines
10 KiB
C
374 lines
10 KiB
C
/*
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Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely.
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*/
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/* A simple program to test the Input Method support in the SDL library (2.0+) */
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "SDL.h"
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#ifdef HAVE_SDL_TTF
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#include "SDL_ttf.h"
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#endif
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#include "SDL_test_common.h"
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#define DEFAULT_PTSIZE 30
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#define DEFAULT_FONT "/System/Library/Fonts/华文细黑.ttf"
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#define MAX_TEXT_LENGTH 256
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static SDLTest_CommonState *state;
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static SDL_Rect textRect, markedRect;
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static SDL_Color lineColor = {0,0,0,0};
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static SDL_Color backColor = {255,255,255,0};
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static SDL_Color textColor = {0,0,0,0};
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static char text[MAX_TEXT_LENGTH], markedText[SDL_TEXTEDITINGEVENT_TEXT_SIZE];
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static int cursor = 0;
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#ifdef HAVE_SDL_TTF
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static TTF_Font *font;
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#endif
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size_t utf8_length(unsigned char c)
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{
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c = (unsigned char)(0xff & c);
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if (c < 0x80)
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return 1;
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else if ((c >> 5) ==0x6)
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return 2;
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else if ((c >> 4) == 0xe)
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return 3;
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else if ((c >> 3) == 0x1e)
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return 4;
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else
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return 0;
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}
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char *utf8_next(char *p)
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{
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size_t len = utf8_length(*p);
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size_t i = 0;
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if (!len)
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return 0;
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for (; i < len; ++i)
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{
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++p;
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if (!*p)
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return 0;
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}
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return p;
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}
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char *utf8_advance(char *p, size_t distance)
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{
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size_t i = 0;
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for (; i < distance && p; ++i)
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{
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p = utf8_next(p);
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}
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return p;
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}
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void usage()
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{
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SDL_Log("usage: testime [--font fontfile]\n");
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exit(0);
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}
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void InitInput()
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{
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/* Prepare a rect for text input */
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textRect.x = textRect.y = 100;
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textRect.w = DEFAULT_WINDOW_WIDTH - 2 * textRect.x;
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textRect.h = 50;
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text[0] = 0;
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markedRect = textRect;
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markedText[0] = 0;
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SDL_StartTextInput();
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}
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void CleanupVideo()
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{
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SDL_StopTextInput();
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#ifdef HAVE_SDL_TTF
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TTF_CloseFont(font);
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TTF_Quit();
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#endif
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}
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void _Redraw(SDL_Renderer * renderer) {
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int w = 0, h = textRect.h;
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SDL_Rect cursorRect, underlineRect;
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SDL_SetRenderDrawColor(renderer, 255,255,255,255);
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SDL_RenderFillRect(renderer,&textRect);
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#ifdef HAVE_SDL_TTF
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if (*text)
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{
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SDL_Surface *textSur = TTF_RenderUTF8_Blended(font, text, textColor);
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SDL_Rect dest = {textRect.x, textRect.y, textSur->w, textSur->h };
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SDL_Texture *texture = SDL_CreateTextureFromSurface(renderer,textSur);
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SDL_FreeSurface(textSur);
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SDL_RenderCopy(renderer,texture,NULL,&dest);
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SDL_DestroyTexture(texture);
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TTF_SizeUTF8(font, text, &w, &h);
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}
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#endif
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markedRect.x = textRect.x + w;
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markedRect.w = textRect.w - w;
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if (markedRect.w < 0)
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{
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/* Stop text input because we cannot hold any more characters */
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SDL_StopTextInput();
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return;
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}
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else
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{
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SDL_StartTextInput();
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}
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cursorRect = markedRect;
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cursorRect.w = 2;
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cursorRect.h = h;
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SDL_SetRenderDrawColor(renderer, 255,255,255,255);
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SDL_RenderFillRect(renderer,&markedRect);
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if (markedText[0])
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{
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#ifdef HAVE_SDL_TTF
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if (cursor)
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{
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char *p = utf8_advance(markedText, cursor);
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char c = 0;
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if (!p)
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p = &markedText[strlen(markedText)];
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c = *p;
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*p = 0;
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TTF_SizeUTF8(font, markedText, &w, 0);
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cursorRect.x += w;
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*p = c;
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}
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SDL_Surface *textSur = TTF_RenderUTF8_Blended(font, markedText, textColor);
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SDL_Rect dest = {markedRect.x, markedRect.y, textSur->w, textSur->h };
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TTF_SizeUTF8(font, markedText, &w, &h);
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SDL_Texture *texture = SDL_CreateTextureFromSurface(renderer,textSur);
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SDL_FreeSurface(textSur);
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SDL_RenderCopy(renderer,texture,NULL,&dest);
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SDL_DestroyTexture(texture);
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#endif
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underlineRect = markedRect;
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underlineRect.y += (h - 2);
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underlineRect.h = 2;
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underlineRect.w = w;
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SDL_SetRenderDrawColor(renderer, 0,0,0,0);
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SDL_RenderFillRect(renderer,&markedRect);
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}
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SDL_SetRenderDrawColor(renderer, 0,0,0,0);
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SDL_RenderFillRect(renderer,&cursorRect);
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SDL_SetTextInputRect(&markedRect);
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}
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void Redraw() {
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int i;
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for (i = 0; i < state->num_windows; ++i) {
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SDL_Renderer *renderer = state->renderers[i];
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if (state->windows[i] == NULL)
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continue;
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SDL_SetRenderDrawColor(renderer, 0, 0, 0, 0);
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SDL_RenderClear(renderer);
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_Redraw(renderer);
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SDL_RenderPresent(renderer);
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}
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}
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int main(int argc, char *argv[]) {
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int i, done;
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SDL_Event event;
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const char *fontname = DEFAULT_FONT;
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/* Enable standard application logging */
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SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
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/* Initialize test framework */
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state = SDLTest_CommonCreateState(argv, SDL_INIT_VIDEO);
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if (!state) {
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return 1;
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}
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for (i = 1; i < argc;i++) {
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SDLTest_CommonArg(state, i);
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}
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for (argc--, argv++; argc > 0; argc--, argv++)
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{
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if (strcmp(argv[0], "--help") == 0) {
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usage();
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return 0;
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}
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else if (strcmp(argv[0], "--font") == 0)
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{
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argc--;
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argv++;
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if (argc > 0)
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fontname = argv[0];
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else {
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usage();
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return 0;
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}
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}
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}
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if (!SDLTest_CommonInit(state)) {
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return 2;
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}
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#ifdef HAVE_SDL_TTF
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/* Initialize fonts */
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TTF_Init();
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font = TTF_OpenFont(fontname, DEFAULT_PTSIZE);
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if (! font)
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{
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to find font: %s\n", TTF_GetError());
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exit(-1);
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}
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#endif
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SDL_Log("Using font: %s\n", fontname);
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atexit(SDL_Quit);
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InitInput();
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/* Create the windows and initialize the renderers */
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for (i = 0; i < state->num_windows; ++i) {
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SDL_Renderer *renderer = state->renderers[i];
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SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_NONE);
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SDL_SetRenderDrawColor(renderer, 0xA0, 0xA0, 0xA0, 0xFF);
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SDL_RenderClear(renderer);
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}
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Redraw();
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/* Main render loop */
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done = 0;
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while (!done) {
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/* Check for events */
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while (SDL_PollEvent(&event)) {
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SDLTest_CommonEvent(state, &event, &done);
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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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{
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case SDLK_RETURN:
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text[0]=0x00;
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Redraw();
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break;
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case SDLK_BACKSPACE:
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{
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int textlen=SDL_strlen(text);
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do {
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if (textlen==0)
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{
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break;
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}
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if ((text[textlen-1] & 0x80) == 0x00)
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{
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/* One byte */
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text[textlen-1]=0x00;
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break;
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}
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if ((text[textlen-1] & 0xC0) == 0x80)
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{
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/* Byte from the multibyte sequence */
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text[textlen-1]=0x00;
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textlen--;
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}
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if ((text[textlen-1] & 0xC0) == 0xC0)
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{
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/* First byte of multibyte sequence */
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text[textlen-1]=0x00;
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break;
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}
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} while(1);
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Redraw();
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}
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break;
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}
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if (done)
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{
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break;
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}
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SDL_Log("Keyboard: scancode 0x%08X = %s, keycode 0x%08X = %s\n",
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event.key.keysym.scancode,
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SDL_GetScancodeName(event.key.keysym.scancode),
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event.key.keysym.sym, SDL_GetKeyName(event.key.keysym.sym));
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break;
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case SDL_TEXTINPUT:
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if (event.text.text[0] == '\0' || event.text.text[0] == '\n' ||
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markedRect.w < 0)
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break;
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SDL_Log("Keyboard: text input \"%s\"\n", event.text.text);
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if (SDL_strlen(text) + SDL_strlen(event.text.text) < sizeof(text))
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SDL_strlcat(text, event.text.text, sizeof(text));
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SDL_Log("text inputed: %s\n", text);
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/* After text inputed, we can clear up markedText because it */
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/* is committed */
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markedText[0] = 0;
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Redraw();
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break;
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case SDL_TEXTEDITING:
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SDL_Log("text editing \"%s\", selected range (%d, %d)\n",
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event.edit.text, event.edit.start, event.edit.length);
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strcpy(markedText, event.edit.text);
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cursor = event.edit.start;
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Redraw();
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break;
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}
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break;
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}
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}
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}
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CleanupVideo();
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SDLTest_CommonQuit(state);
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return 0;
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}
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/* vi: set ts=4 sw=4 expandtab: */
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