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Moved the SDL_ttf IME demo to showfont in the SDL_ttf project
This commit is contained in:
Sam Lantinga
parent
e00b1fdd67
commit
596ef1ba2e
136
test/testime.c
136
test/testime.c
@ -9,36 +9,23 @@
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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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/* A simple program to test the Input Method support in SDL.
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*
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* This uses the GNU Unifont to display non-ASCII characters, available at:
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* http://unifoundry.com/unifont.html
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*
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* An example of IME support with TrueType fonts is available in the SDL_ttf example code:
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* https://github.com/libsdl-org/SDL_ttf/blob/main/examples/editbox.h
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*/
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#include <SDL3/SDL.h>
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#include <SDL3/SDL_main.h>
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#include <SDL3/SDL_test_font.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 <SDL3/SDL_test_common.h>
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#include "testutils.h"
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#ifdef HAVE_SDL_TTF
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#define DEFAULT_PTSIZE 30
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#endif
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#ifdef HAVE_SDL_TTF
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#ifdef SDL_PLATFORM_MACOS
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#define DEFAULT_FONT "/System/Library/Fonts/华文细黑.ttf"
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#elif defined(SDL_PLATFORM_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-15.1.05.hex"
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#endif
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#define MAX_TEXT_LENGTH 256
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#define WINDOW_WIDTH 640
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@ -105,9 +92,6 @@ static const struct
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{ "Multiline ON", SDL_PROP_TEXTINPUT_MULTILINE_BOOLEAN, true }
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};
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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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#define UNIFONT_REPLACEMENT 0xFFFD
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@ -433,7 +417,6 @@ static void unifont_cleanup(void)
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}
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/* Unifont code end */
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#endif
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static size_t utf8_length(unsigned char c)
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{
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@ -450,35 +433,6 @@ static size_t utf8_length(unsigned char c)
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return 0;
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}
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#ifdef HAVE_SDL_TTF
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static 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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}
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for (; i < len; ++i) {
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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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}
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return p;
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}
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static 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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p = utf8_next(p);
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}
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return p;
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}
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#endif
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static Uint32 utf8_decode(const char *p, size_t len)
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{
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Uint32 codepoint = 0;
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@ -582,9 +536,6 @@ static void DrawCandidates(WindowState *ctx, SDL_FRect *cursorRect)
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continue;
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}
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#ifdef HAVE_SDL_TTF
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/* FIXME */
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#else
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if (ctx->horizontal_candidates) {
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const char *utext = ctx->candidates[i];
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Uint32 codepoint;
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@ -616,7 +567,6 @@ static void DrawCandidates(WindowState *ctx, SDL_FRect *cursorRect)
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}
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h += UNIFONT_GLYPH_SIZE * UNIFONT_DRAW_SCALE;
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}
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#endif
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}
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/* Position the candidate window */
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@ -646,9 +596,6 @@ static void DrawCandidates(WindowState *ctx, SDL_FRect *cursorRect)
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continue;
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}
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#ifdef HAVE_SDL_TTF
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/* FIXME */
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#else
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dstRect.w = UNIFONT_GLYPH_SIZE * UNIFONT_DRAW_SCALE;
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dstRect.h = UNIFONT_GLYPH_SIZE * UNIFONT_DRAW_SCALE;
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@ -706,7 +653,6 @@ static void DrawCandidates(WindowState *ctx, SDL_FRect *cursorRect)
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}
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dstRect.y += dstRect.h;
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}
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#endif
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}
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}
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@ -733,12 +679,7 @@ static void CleanupVideo(void)
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ClearCandidates(ctx);
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SDL_DestroyProperties(ctx->text_settings);
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}
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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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static void DrawSettingsButton(WindowState *ctx)
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@ -860,21 +801,6 @@ static void RedrawWindow(WindowState *ctx)
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drawnTextRect.h = UNIFONT_GLYPH_SIZE * UNIFONT_DRAW_SCALE;
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if (text[0]) {
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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 = ctx->textRect.y + (ctx->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_DestroySurface(textSur);
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SDL_RenderTexture(renderer, texture, NULL, &drawnTextRect);
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SDL_DestroyTexture(texture);
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#else
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char *utext = text;
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Uint32 codepoint;
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size_t len;
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@ -893,7 +819,6 @@ static void RedrawWindow(WindowState *ctx)
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drawnTextRect.w += advance;
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utext += len;
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}
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#endif
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}
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/* The marked text rectangle is the text area that hasn't been filled by committed text */
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@ -910,39 +835,6 @@ static void RedrawWindow(WindowState *ctx)
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cursorRect.h = drawnTextRect.h;
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if (ctx->markedText[0]) {
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#ifdef HAVE_SDL_TTF
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SDL_Surface *textSur;
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SDL_Texture *texture;
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if (ctx->cursor) {
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char *p = utf8_advance(ctx->markedText, ctx->cursor);
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char c = 0;
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if (!p) {
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p = &ctx->markedText[SDL_strlen(ctx->markedText)];
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}
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c = *p;
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*p = 0;
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TTF_SizeUTF8(font, ctx->markedText, &drawnTextRect.w, NULL);
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cursorRect.x += drawnTextRect.w;
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*p = c;
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}
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textSur = TTF_RenderUTF8_Blended(font, ctx->markedText, textColor);
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/* Vertically center text */
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drawnTextRect.y = ctx->textRect.y + (ctx->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_DestroySurface(textSur);
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SDL_RenderTexture(renderer, texture, NULL, &drawnTextRect);
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SDL_DestroyTexture(texture);
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if (ctx->cursor_length > 0) {
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/* FIXME: Need to measure text extents */
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cursorRect.w = ctx->cursor_length * UNIFONT_GLYPH_SIZE * UNIFONT_DRAW_SCALE;
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}
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#else
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int i = 0;
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char *utext = ctx->markedText;
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Uint32 codepoint;
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@ -970,7 +862,6 @@ static void RedrawWindow(WindowState *ctx)
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if (ctx->cursor_length > 0) {
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cursorRect.w = ctx->cursor_length * UNIFONT_GLYPH_SIZE * UNIFONT_DRAW_SCALE;
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}
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#endif
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cursorRect.y = drawnTextRect.y;
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cursorRect.h = drawnTextRect.h;
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@ -1085,20 +976,9 @@ int main(int argc, char *argv[])
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fontname = GetResourceFilename(fontname, DEFAULT_FONT);
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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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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to find font: %s\n", SDL_GetError());
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return -1;
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}
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#else
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if (unifont_init(fontname) < 0) {
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return -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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