801 lines
24 KiB
C
Executable file
801 lines
24 KiB
C
Executable file
/*
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Copyright (C) 1997-2022 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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If you build without SDL_ttf, you can use the GNU Unifont hex file instead.
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Download at http://unifoundry.com/unifont.html */
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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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#ifdef HAVE_SDL_TTF
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#ifdef __MACOSX__
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#define DEFAULT_FONT "/System/Library/Fonts/华文细黑.ttf"
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#elif __WIN32__
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/* Some japanese font present on at least Windows 8.1. */
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#define DEFAULT_FONT "C:\\Windows\\Fonts\\yugothic.ttf"
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#else
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#define DEFAULT_FONT "NoDefaultFont.ttf"
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#endif
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#else
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#define DEFAULT_FONT "unifont-13.0.06.hex"
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#endif
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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 = {0,0,0,255};
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static SDL_Color backColor = {255,255,255,255};
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static SDL_Color textColor = {0,0,0,255};
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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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#else
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#define UNIFONT_MAX_CODEPOINT 0x1ffff
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#define UNIFONT_NUM_GLYPHS 0x20000
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/* Using 512x512 textures that are supported everywhere. */
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#define UNIFONT_TEXTURE_WIDTH 512
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#define UNIFONT_GLYPHS_IN_ROW (UNIFONT_TEXTURE_WIDTH / 16)
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#define UNIFONT_GLYPHS_IN_TEXTURE (UNIFONT_GLYPHS_IN_ROW * UNIFONT_GLYPHS_IN_ROW)
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#define UNIFONT_NUM_TEXTURES ((UNIFONT_NUM_GLYPHS + UNIFONT_GLYPHS_IN_TEXTURE - 1) / UNIFONT_GLYPHS_IN_TEXTURE)
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#define UNIFONT_TEXTURE_SIZE (UNIFONT_TEXTURE_WIDTH * UNIFONT_TEXTURE_WIDTH * 4)
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#define UNIFONT_TEXTURE_PITCH (UNIFONT_TEXTURE_WIDTH * 4)
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#define UNIFONT_DRAW_SCALE 2
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struct UnifontGlyph {
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Uint8 width;
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Uint8 data[32];
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} *unifontGlyph;
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static SDL_Texture **unifontTexture;
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static Uint8 unifontTextureLoaded[UNIFONT_NUM_TEXTURES] = {0};
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/* Unifont loading code start */
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static Uint8 dehex(char c)
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{
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if (c >= '0' && c <= '9')
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return c - '0';
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else if (c >= 'a' && c <= 'f')
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return c - 'a' + 10;
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else if (c >= 'A' && c <= 'F')
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return c - 'A' + 10;
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return 255;
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}
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static Uint8 dehex2(char c1, char c2)
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{
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return (dehex(c1) << 4) | dehex(c2);
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}
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static Uint8 validate_hex(const char *cp, size_t len, Uint32 *np)
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{
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Uint32 n = 0;
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for (; len > 0; cp++, len--)
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{
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Uint8 c = dehex(*cp);
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if (c == 255)
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return 0;
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n = (n << 4) | c;
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}
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if (np != NULL)
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*np = n;
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return 1;
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}
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static int unifont_init(const char *fontname)
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{
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Uint8 hexBuffer[65];
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Uint32 numGlyphs = 0;
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int lineNumber = 1;
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size_t bytesRead;
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SDL_RWops *hexFile;
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const size_t unifontGlyphSize = UNIFONT_NUM_GLYPHS * sizeof(struct UnifontGlyph);
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const size_t unifontTextureSize = UNIFONT_NUM_TEXTURES * state->num_windows * sizeof(void *);
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/* Allocate memory for the glyph data so the file can be closed after initialization. */
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unifontGlyph = (struct UnifontGlyph *)SDL_malloc(unifontGlyphSize);
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if (unifontGlyph == NULL)
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{
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "unifont: Failed to allocate %d KiB for glyph data.\n", (int)(unifontGlyphSize + 1023) / 1024);
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return -1;
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}
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SDL_memset(unifontGlyph, 0, unifontGlyphSize);
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/* Allocate memory for texture pointers for all renderers. */
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unifontTexture = (SDL_Texture **)SDL_malloc(unifontTextureSize);
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if (unifontTexture == NULL)
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{
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "unifont: Failed to allocate %d KiB for texture pointer data.\n", (int)(unifontTextureSize + 1023) / 1024);
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return -1;
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}
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SDL_memset(unifontTexture, 0, unifontTextureSize);
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hexFile = SDL_RWFromFile(fontname, "rb");
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if (hexFile == NULL)
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{
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "unifont: Failed to open font file: %s\n", fontname);
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return -1;
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}
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/* Read all the glyph data into memory to make it accessible later when textures are created. */
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do {
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int i, codepointHexSize;
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size_t bytesOverread;
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Uint8 glyphWidth;
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Uint32 codepoint;
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bytesRead = SDL_RWread(hexFile, hexBuffer, 1, 9);
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if (numGlyphs > 0 && bytesRead == 0)
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break; /* EOF */
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if ((numGlyphs == 0 && bytesRead == 0) || (numGlyphs > 0 && bytesRead < 9))
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{
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "unifont: Unexpected end of hex file.\n");
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return -1;
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}
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/* Looking for the colon that separates the codepoint and glyph data at position 2, 4, 6 and 8. */
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if (hexBuffer[2] == ':')
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codepointHexSize = 2;
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else if (hexBuffer[4] == ':')
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codepointHexSize = 4;
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else if (hexBuffer[6] == ':')
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codepointHexSize = 6;
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else if (hexBuffer[8] == ':')
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codepointHexSize = 8;
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else
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{
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "unifont: Could not find codepoint and glyph data separator symbol in hex file on line %d.\n", lineNumber);
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return -1;
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}
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if (!validate_hex((const char *)hexBuffer, codepointHexSize, &codepoint))
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{
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "unifont: Malformed hexadecimal number in hex file on line %d.\n", lineNumber);
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return -1;
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}
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if (codepoint > UNIFONT_MAX_CODEPOINT)
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SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION, "unifont: Codepoint on line %d exceeded limit of 0x%x.\n", lineNumber, UNIFONT_MAX_CODEPOINT);
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/* If there was glyph data read in the last file read, move it to the front of the buffer. */
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bytesOverread = 8 - codepointHexSize;
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if (codepointHexSize < 8)
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SDL_memmove(hexBuffer, hexBuffer + codepointHexSize + 1, bytesOverread);
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bytesRead = SDL_RWread(hexFile, hexBuffer + bytesOverread, 1, 33 - bytesOverread);
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if (bytesRead < (33 - bytesOverread))
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{
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "unifont: Unexpected end of hex file.\n");
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return -1;
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}
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if (hexBuffer[32] == '\n')
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glyphWidth = 8;
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else
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{
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glyphWidth = 16;
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bytesRead = SDL_RWread(hexFile, hexBuffer + 33, 1, 32);
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if (bytesRead < 32)
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{
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "unifont: Unexpected end of hex file.\n");
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return -1;
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}
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}
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if (!validate_hex((const char *)hexBuffer, glyphWidth * 4, NULL))
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{
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "unifont: Malformed hexadecimal glyph data in hex file on line %d.\n", lineNumber);
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return -1;
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}
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if (codepoint <= UNIFONT_MAX_CODEPOINT)
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{
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if (unifontGlyph[codepoint].width > 0)
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SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION, "unifont: Ignoring duplicate codepoint 0x%08x in hex file on line %d.\n", codepoint, lineNumber);
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else
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{
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unifontGlyph[codepoint].width = glyphWidth;
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/* Pack the hex data into a more compact form. */
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for (i = 0; i < glyphWidth * 2; i++)
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unifontGlyph[codepoint].data[i] = dehex2(hexBuffer[i * 2], hexBuffer[i * 2 + 1]);
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numGlyphs++;
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}
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}
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lineNumber++;
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} while (bytesRead > 0);
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SDL_RWclose(hexFile);
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SDL_Log("unifont: Loaded %u glyphs.\n", numGlyphs);
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return 0;
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}
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static void unifont_make_rgba(Uint8 *src, Uint8 *dst, Uint8 width)
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{
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int i, j;
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Uint8 *row = dst;
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for (i = 0; i < width * 2; i++)
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{
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Uint8 data = src[i];
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for (j = 0; j < 8; j++)
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{
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if (data & 0x80)
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{
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row[0] = textColor.r;
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row[1] = textColor.g;
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row[2] = textColor.b;
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row[3] = textColor.a;
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}
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else
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{
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row[0] = 0;
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row[1] = 0;
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row[2] = 0;
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row[3] = 0;
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}
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data <<= 1;
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row += 4;
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}
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if (width == 8 || (width == 16 && i % 2 == 1))
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{
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dst += UNIFONT_TEXTURE_PITCH;
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row = dst;
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}
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}
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}
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static int unifont_load_texture(Uint32 textureID)
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{
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int i;
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Uint8 * textureRGBA;
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if (textureID >= UNIFONT_NUM_TEXTURES)
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{
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "unifont: Tried to load out of range texture %u.\n", textureID);
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return -1;
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}
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textureRGBA = (Uint8 *)SDL_malloc(UNIFONT_TEXTURE_SIZE);
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if (textureRGBA == NULL)
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{
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "unifont: Failed to allocate %d MiB for a texture.\n", UNIFONT_TEXTURE_SIZE / 1024 / 1024);
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return -1;
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}
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SDL_memset(textureRGBA, 0, UNIFONT_TEXTURE_SIZE);
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/* Copy the glyphs into memory in RGBA format. */
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for (i = 0; i < UNIFONT_GLYPHS_IN_TEXTURE; i++)
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{
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Uint32 codepoint = UNIFONT_GLYPHS_IN_TEXTURE * textureID + i;
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if (unifontGlyph[codepoint].width > 0)
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{
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const Uint32 cInTex = codepoint % UNIFONT_GLYPHS_IN_TEXTURE;
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const size_t offset = (cInTex / UNIFONT_GLYPHS_IN_ROW) * UNIFONT_TEXTURE_PITCH * 16 + (cInTex % UNIFONT_GLYPHS_IN_ROW) * 16 * 4;
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unifont_make_rgba(unifontGlyph[codepoint].data, textureRGBA + offset, unifontGlyph[codepoint].width);
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}
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}
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/* Create textures and upload the RGBA data from above. */
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for (i = 0; i < state->num_windows; ++i)
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{
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SDL_Renderer *renderer = state->renderers[i];
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SDL_Texture *tex = unifontTexture[UNIFONT_NUM_TEXTURES * i + textureID];
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if (state->windows[i] == NULL || renderer == NULL || tex != NULL)
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continue;
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tex = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STATIC, UNIFONT_TEXTURE_WIDTH, UNIFONT_TEXTURE_WIDTH);
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if (tex == NULL)
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{
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "unifont: Failed to create texture %u for renderer %d.\n", textureID, i);
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return -1;
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}
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unifontTexture[UNIFONT_NUM_TEXTURES * i + textureID] = tex;
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SDL_SetTextureBlendMode(tex, SDL_BLENDMODE_BLEND);
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if (SDL_UpdateTexture(tex, NULL, textureRGBA, UNIFONT_TEXTURE_PITCH) != 0)
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{
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SDL_Log("unifont error: Failed to update texture %u data for renderer %d.\n", textureID, i);
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}
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}
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SDL_free(textureRGBA);
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unifontTextureLoaded[textureID] = 1;
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return 0;
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}
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static Sint32 unifont_draw_glyph(Uint32 codepoint, int rendererID, SDL_Rect *dstrect)
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{
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SDL_Texture *texture;
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const Uint32 textureID = codepoint / UNIFONT_GLYPHS_IN_TEXTURE;
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SDL_Rect srcrect;
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srcrect.w = srcrect.h = 16;
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if (codepoint > UNIFONT_MAX_CODEPOINT) {
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return 0;
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}
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if (!unifontTextureLoaded[textureID]) {
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if (unifont_load_texture(textureID) < 0) {
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return 0;
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}
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}
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texture = unifontTexture[UNIFONT_NUM_TEXTURES * rendererID + textureID];
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if (texture != NULL)
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{
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const Uint32 cInTex = codepoint % UNIFONT_GLYPHS_IN_TEXTURE;
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srcrect.x = cInTex % UNIFONT_GLYPHS_IN_ROW * 16;
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srcrect.y = cInTex / UNIFONT_GLYPHS_IN_ROW * 16;
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SDL_RenderCopy(state->renderers[rendererID], texture, &srcrect, dstrect);
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}
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return unifontGlyph[codepoint].width;
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}
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static void unifont_cleanup()
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{
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int i, j;
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for (i = 0; i < state->num_windows; ++i)
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{
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SDL_Renderer *renderer = state->renderers[i];
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if (state->windows[i] == NULL || renderer == NULL)
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continue;
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for (j = 0; j < UNIFONT_NUM_TEXTURES; j++)
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{
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SDL_Texture *tex = unifontTexture[UNIFONT_NUM_TEXTURES * i + j];
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if (tex != NULL)
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SDL_DestroyTexture(tex);
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}
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}
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for (j = 0; j < UNIFONT_NUM_TEXTURES; j++)
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unifontTextureLoaded[j] = 0;
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SDL_free(unifontTexture);
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SDL_free(unifontGlyph);
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}
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/* Unifont code end */
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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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Uint32 utf8_decode(char *p, size_t len)
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{
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Uint32 codepoint = 0;
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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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if (i == 0)
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codepoint = (0xff >> len) & *p;
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else
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{
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codepoint <<= 6;
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codepoint |= 0x3f & *p;
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}
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if (!*p)
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return 0;
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p++;
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}
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return codepoint;
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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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}
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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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#else
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unifont_cleanup();
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#endif
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}
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void _Redraw(int rendererID)
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{
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SDL_Renderer * renderer = state->renderers[rendererID];
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SDL_Rect drawnTextRect, cursorRect, underlineRect;
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drawnTextRect = textRect;
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drawnTextRect.w = 0;
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SDL_SetRenderDrawColor(renderer, backColor.r, backColor.g, backColor.b, backColor.a);
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SDL_RenderFillRect(renderer,&textRect);
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if (*text)
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{
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#ifdef HAVE_SDL_TTF
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SDL_Surface *textSur = TTF_RenderUTF8_Blended(font, text, textColor);
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SDL_Texture *texture;
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/* Vertically center text */
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drawnTextRect.y = textRect.y + (textRect.h - textSur->h) / 2;
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drawnTextRect.w = textSur->w;
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drawnTextRect.h = textSur->h;
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texture = SDL_CreateTextureFromSurface(renderer,textSur);
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SDL_FreeSurface(textSur);
|
|
|
|
SDL_RenderCopy(renderer,texture,NULL,&drawnTextRect);
|
|
SDL_DestroyTexture(texture);
|
|
#else
|
|
char *utext = text;
|
|
Uint32 codepoint;
|
|
size_t len;
|
|
SDL_Rect dstrect;
|
|
|
|
dstrect.x = textRect.x;
|
|
dstrect.y = textRect.y + (textRect.h - 16 * UNIFONT_DRAW_SCALE) / 2;
|
|
dstrect.w = 16 * UNIFONT_DRAW_SCALE;
|
|
dstrect.h = 16 * UNIFONT_DRAW_SCALE;
|
|
drawnTextRect.y = dstrect.y;
|
|
drawnTextRect.h = dstrect.h;
|
|
|
|
while ((codepoint = utf8_decode(utext, len = utf8_length(*utext))))
|
|
{
|
|
Sint32 advance = unifont_draw_glyph(codepoint, rendererID, &dstrect) * UNIFONT_DRAW_SCALE;
|
|
dstrect.x += advance;
|
|
drawnTextRect.w += advance;
|
|
utext += len;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
markedRect.x = textRect.x + drawnTextRect.w;
|
|
markedRect.w = textRect.w - drawnTextRect.w;
|
|
if (markedRect.w < 0)
|
|
{
|
|
/* Stop text input because we cannot hold any more characters */
|
|
SDL_StopTextInput();
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
SDL_StartTextInput();
|
|
}
|
|
|
|
cursorRect = drawnTextRect;
|
|
cursorRect.x += cursorRect.w;
|
|
cursorRect.w = 2;
|
|
cursorRect.h = drawnTextRect.h;
|
|
|
|
drawnTextRect.x += drawnTextRect.w;
|
|
drawnTextRect.w = 0;
|
|
|
|
SDL_SetRenderDrawColor(renderer, backColor.r, backColor.g, backColor.b, backColor.a);
|
|
SDL_RenderFillRect(renderer,&markedRect);
|
|
|
|
if (markedText[0])
|
|
{
|
|
#ifdef HAVE_SDL_TTF
|
|
SDL_Surface *textSur;
|
|
SDL_Texture *texture;
|
|
if (cursor)
|
|
{
|
|
char *p = utf8_advance(markedText, cursor);
|
|
char c = 0;
|
|
if (!p)
|
|
p = &markedText[SDL_strlen(markedText)];
|
|
|
|
c = *p;
|
|
*p = 0;
|
|
TTF_SizeUTF8(font, markedText, &drawnTextRect.w, NULL);
|
|
cursorRect.x += drawnTextRect.w;
|
|
*p = c;
|
|
}
|
|
textSur = TTF_RenderUTF8_Blended(font, markedText, textColor);
|
|
/* Vertically center text */
|
|
drawnTextRect.y = textRect.y + (textRect.h - textSur->h) / 2;
|
|
drawnTextRect.w = textSur->w;
|
|
drawnTextRect.h = textSur->h;
|
|
|
|
texture = SDL_CreateTextureFromSurface(renderer,textSur);
|
|
SDL_FreeSurface(textSur);
|
|
|
|
SDL_RenderCopy(renderer,texture,NULL,&drawnTextRect);
|
|
SDL_DestroyTexture(texture);
|
|
#else
|
|
int i = 0;
|
|
char *utext = markedText;
|
|
Uint32 codepoint;
|
|
size_t len;
|
|
SDL_Rect dstrect;
|
|
|
|
dstrect.x = drawnTextRect.x;
|
|
dstrect.y = textRect.y + (textRect.h - 16 * UNIFONT_DRAW_SCALE) / 2;
|
|
dstrect.w = 16 * UNIFONT_DRAW_SCALE;
|
|
dstrect.h = 16 * UNIFONT_DRAW_SCALE;
|
|
drawnTextRect.y = dstrect.y;
|
|
drawnTextRect.h = dstrect.h;
|
|
|
|
while ((codepoint = utf8_decode(utext, len = utf8_length(*utext))))
|
|
{
|
|
Sint32 advance = unifont_draw_glyph(codepoint, rendererID, &dstrect) * UNIFONT_DRAW_SCALE;
|
|
dstrect.x += advance;
|
|
drawnTextRect.w += advance;
|
|
if (i < cursor)
|
|
cursorRect.x += advance;
|
|
i++;
|
|
utext += len;
|
|
}
|
|
#endif
|
|
|
|
if (cursor > 0)
|
|
{
|
|
cursorRect.y = drawnTextRect.y;
|
|
cursorRect.h = drawnTextRect.h;
|
|
}
|
|
|
|
underlineRect = markedRect;
|
|
underlineRect.y = drawnTextRect.y + drawnTextRect.h - 2;
|
|
underlineRect.h = 2;
|
|
underlineRect.w = drawnTextRect.w;
|
|
|
|
SDL_SetRenderDrawColor(renderer, lineColor.r, lineColor.g, lineColor.b, lineColor.a);
|
|
SDL_RenderFillRect(renderer, &underlineRect);
|
|
}
|
|
|
|
SDL_SetRenderDrawColor(renderer, lineColor.r, lineColor.g, lineColor.b, lineColor.a);
|
|
SDL_RenderFillRect(renderer,&cursorRect);
|
|
|
|
SDL_SetTextInputRect(&markedRect);
|
|
}
|
|
|
|
void Redraw()
|
|
{
|
|
int i;
|
|
for (i = 0; i < state->num_windows; ++i) {
|
|
SDL_Renderer *renderer = state->renderers[i];
|
|
if (state->windows[i] == NULL)
|
|
continue;
|
|
SDL_SetRenderDrawColor(renderer, 0, 0, 0, 0);
|
|
SDL_RenderClear(renderer);
|
|
|
|
/* Sending in the window id to let the font renderers know which one we're working with. */
|
|
_Redraw(i);
|
|
|
|
SDL_RenderPresent(renderer);
|
|
}
|
|
}
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
int i, done;
|
|
SDL_Event event;
|
|
const char *fontname = DEFAULT_FONT;
|
|
|
|
/* Enable standard application logging */
|
|
SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
|
|
|
|
/* Initialize test framework */
|
|
state = SDLTest_CommonCreateState(argv, SDL_INIT_VIDEO);
|
|
if (!state) {
|
|
return 1;
|
|
}
|
|
for (i = 1; i < argc;i++) {
|
|
SDLTest_CommonArg(state, i);
|
|
}
|
|
for (argc--, argv++; argc > 0; argc--, argv++)
|
|
{
|
|
if (SDL_strcmp(argv[0], "--help") == 0) {
|
|
usage();
|
|
return 0;
|
|
}
|
|
|
|
else if (SDL_strcmp(argv[0], "--font") == 0)
|
|
{
|
|
argc--;
|
|
argv++;
|
|
|
|
if (argc > 0)
|
|
fontname = argv[0];
|
|
else {
|
|
usage();
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!SDLTest_CommonInit(state)) {
|
|
return 2;
|
|
}
|
|
|
|
|
|
#ifdef HAVE_SDL_TTF
|
|
/* Initialize fonts */
|
|
TTF_Init();
|
|
|
|
font = TTF_OpenFont(fontname, DEFAULT_PTSIZE);
|
|
if (! font)
|
|
{
|
|
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to find font: %s\n", TTF_GetError());
|
|
return -1;
|
|
}
|
|
#else
|
|
if (unifont_init(fontname) < 0) {
|
|
return -1;
|
|
}
|
|
#endif
|
|
|
|
SDL_Log("Using font: %s\n", fontname);
|
|
|
|
InitInput();
|
|
/* Create the windows and initialize the renderers */
|
|
for (i = 0; i < state->num_windows; ++i) {
|
|
SDL_Renderer *renderer = state->renderers[i];
|
|
SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_NONE);
|
|
SDL_SetRenderDrawColor(renderer, 0xA0, 0xA0, 0xA0, 0xFF);
|
|
SDL_RenderClear(renderer);
|
|
}
|
|
Redraw();
|
|
/* Main render loop */
|
|
done = 0;
|
|
while (!done) {
|
|
/* Check for events */
|
|
while (SDL_PollEvent(&event)) {
|
|
SDLTest_CommonEvent(state, &event, &done);
|
|
switch(event.type) {
|
|
case SDL_KEYDOWN: {
|
|
switch (event.key.keysym.sym)
|
|
{
|
|
case SDLK_RETURN:
|
|
text[0]=0x00;
|
|
Redraw();
|
|
break;
|
|
case SDLK_BACKSPACE:
|
|
/* Only delete text if not in editing mode. */
|
|
if (!markedText[0])
|
|
{
|
|
size_t textlen = SDL_strlen(text);
|
|
|
|
do {
|
|
if (textlen==0)
|
|
{
|
|
break;
|
|
}
|
|
if ((text[textlen-1] & 0x80) == 0x00)
|
|
{
|
|
/* One byte */
|
|
text[textlen-1]=0x00;
|
|
break;
|
|
}
|
|
if ((text[textlen-1] & 0xC0) == 0x80)
|
|
{
|
|
/* Byte from the multibyte sequence */
|
|
text[textlen-1]=0x00;
|
|
textlen--;
|
|
}
|
|
if ((text[textlen-1] & 0xC0) == 0xC0)
|
|
{
|
|
/* First byte of multibyte sequence */
|
|
text[textlen-1]=0x00;
|
|
break;
|
|
}
|
|
} while(1);
|
|
|
|
Redraw();
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (done)
|
|
{
|
|
break;
|
|
}
|
|
|
|
SDL_Log("Keyboard: scancode 0x%08X = %s, keycode 0x%08X = %s\n",
|
|
event.key.keysym.scancode,
|
|
SDL_GetScancodeName(event.key.keysym.scancode),
|
|
event.key.keysym.sym, SDL_GetKeyName(event.key.keysym.sym));
|
|
break;
|
|
|
|
case SDL_TEXTINPUT:
|
|
if (event.text.text[0] == '\0' || event.text.text[0] == '\n' ||
|
|
markedRect.w < 0)
|
|
break;
|
|
|
|
SDL_Log("Keyboard: text input \"%s\"\n", event.text.text);
|
|
|
|
if (SDL_strlen(text) + SDL_strlen(event.text.text) < sizeof(text))
|
|
SDL_strlcat(text, event.text.text, sizeof(text));
|
|
|
|
SDL_Log("text inputed: %s\n", text);
|
|
|
|
/* After text inputed, we can clear up markedText because it */
|
|
/* is committed */
|
|
markedText[0] = 0;
|
|
Redraw();
|
|
break;
|
|
|
|
case SDL_TEXTEDITING:
|
|
SDL_Log("text editing \"%s\", selected range (%d, %d)\n",
|
|
event.edit.text, event.edit.start, event.edit.length);
|
|
|
|
SDL_strlcpy(markedText, event.edit.text, SDL_TEXTEDITINGEVENT_TEXT_SIZE);
|
|
cursor = event.edit.start;
|
|
Redraw();
|
|
break;
|
|
}
|
|
break;
|
|
|
|
}
|
|
}
|
|
}
|
|
CleanupVideo();
|
|
SDLTest_CommonQuit(state);
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* vi: set ts=4 sw=4 expandtab: */
|