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Diffstat (limited to '3rdparty/SDL2/Xcode-iOS/Demos/src/keyboard.c')
-rw-r--r--3rdparty/SDL2/Xcode-iOS/Demos/src/keyboard.c317
1 files changed, 0 insertions, 317 deletions
diff --git a/3rdparty/SDL2/Xcode-iOS/Demos/src/keyboard.c b/3rdparty/SDL2/Xcode-iOS/Demos/src/keyboard.c
deleted file mode 100644
index 1932ad4a96b..00000000000
--- a/3rdparty/SDL2/Xcode-iOS/Demos/src/keyboard.c
+++ /dev/null
@@ -1,317 +0,0 @@
-/*
- * keyboard.c
- * written by Holmes Futrell
- * use however you want
- */
-
-#include "SDL.h"
-#include "common.h"
-
-#define GLYPH_SIZE_IMAGE 16 /* size of glyphs (characters) in the bitmap font file */
-#define GLYPH_SIZE_SCREEN 32 /* size of glyphs (characters) as shown on the screen */
-
-static SDL_Texture *texture; /* texture where we'll hold our font */
-
-/* function declarations */
-void cleanup(void);
-void drawBlank(int x, int y);
-
-static SDL_Renderer *renderer;
-static int numChars = 0; /* number of characters we've typed so far */
-static SDL_bool lastCharWasColon = 0; /* we use this to detect sequences such as :) */
-static SDL_Color bg_color = { 50, 50, 100, 255 }; /* color of background */
-
-/* this structure maps a scancode to an index in our bitmap font.
- it also contains data about under which modifiers the mapping is valid
- (for example, we don't want shift + 1 to produce the character '1',
- but rather the character '!')
-*/
-typedef struct
-{
- SDL_Scancode scancode; /* scancode of the key we want to map */
- int allow_no_mod; /* is the map valid if the key has no modifiers? */
- SDL_Keymod mod; /* what modifiers are allowed for the mapping */
- int index; /* what index in the font does the scancode map to */
-} fontMapping;
-
-#define TABLE_SIZE 51 /* size of our table which maps keys and modifiers to font indices */
-
-/* Below is the table that defines the mapping between scancodes and modifiers to indices in the
- bitmap font. As an example, then line '{ SDL_SCANCODE_A, 1, KMOD_SHIFT, 33 }' means, map
- the key A (which has scancode SDL_SCANCODE_A) to index 33 in the font (which is a picture of an A),
- The '1' means that the mapping is valid even if there are no modifiers, and KMOD_SHIFT means the
- mapping is also valid if the user is holding shift.
-*/
-fontMapping map[TABLE_SIZE] = {
-
- {SDL_SCANCODE_A, 1, KMOD_SHIFT, 33}, /* A */
- {SDL_SCANCODE_B, 1, KMOD_SHIFT, 34}, /* B */
- {SDL_SCANCODE_C, 1, KMOD_SHIFT, 35}, /* C */
- {SDL_SCANCODE_D, 1, KMOD_SHIFT, 36}, /* D */
- {SDL_SCANCODE_E, 1, KMOD_SHIFT, 37}, /* E */
- {SDL_SCANCODE_F, 1, KMOD_SHIFT, 38}, /* F */
- {SDL_SCANCODE_G, 1, KMOD_SHIFT, 39}, /* G */
- {SDL_SCANCODE_H, 1, KMOD_SHIFT, 40}, /* H */
- {SDL_SCANCODE_I, 1, KMOD_SHIFT, 41}, /* I */
- {SDL_SCANCODE_J, 1, KMOD_SHIFT, 42}, /* J */
- {SDL_SCANCODE_K, 1, KMOD_SHIFT, 43}, /* K */
- {SDL_SCANCODE_L, 1, KMOD_SHIFT, 44}, /* L */
- {SDL_SCANCODE_M, 1, KMOD_SHIFT, 45}, /* M */
- {SDL_SCANCODE_N, 1, KMOD_SHIFT, 46}, /* N */
- {SDL_SCANCODE_O, 1, KMOD_SHIFT, 47}, /* O */
- {SDL_SCANCODE_P, 1, KMOD_SHIFT, 48}, /* P */
- {SDL_SCANCODE_Q, 1, KMOD_SHIFT, 49}, /* Q */
- {SDL_SCANCODE_R, 1, KMOD_SHIFT, 50}, /* R */
- {SDL_SCANCODE_S, 1, KMOD_SHIFT, 51}, /* S */
- {SDL_SCANCODE_T, 1, KMOD_SHIFT, 52}, /* T */
- {SDL_SCANCODE_U, 1, KMOD_SHIFT, 53}, /* U */
- {SDL_SCANCODE_V, 1, KMOD_SHIFT, 54}, /* V */
- {SDL_SCANCODE_W, 1, KMOD_SHIFT, 55}, /* W */
- {SDL_SCANCODE_X, 1, KMOD_SHIFT, 56}, /* X */
- {SDL_SCANCODE_Y, 1, KMOD_SHIFT, 57}, /* Y */
- {SDL_SCANCODE_Z, 1, KMOD_SHIFT, 58}, /* Z */
- {SDL_SCANCODE_0, 1, 0, 16}, /* 0 */
- {SDL_SCANCODE_1, 1, 0, 17}, /* 1 */
- {SDL_SCANCODE_2, 1, 0, 18}, /* 2 */
- {SDL_SCANCODE_3, 1, 0, 19}, /* 3 */
- {SDL_SCANCODE_4, 1, 0, 20}, /* 4 */
- {SDL_SCANCODE_5, 1, 0, 21}, /* 5 */
- {SDL_SCANCODE_6, 1, 0, 22}, /* 6 */
- {SDL_SCANCODE_7, 1, 0, 23}, /* 7 */
- {SDL_SCANCODE_8, 1, 0, 24}, /* 8 */
- {SDL_SCANCODE_9, 1, 0, 25}, /* 9 */
- {SDL_SCANCODE_SPACE, 1, 0, 0}, /* ' ' */
- {SDL_SCANCODE_1, 0, KMOD_SHIFT, 1}, /* ! */
- {SDL_SCANCODE_SLASH, 0, KMOD_SHIFT, 31}, /* ? */
- {SDL_SCANCODE_SLASH, 1, 0, 15}, /* / */
- {SDL_SCANCODE_COMMA, 1, 0, 12}, /* , */
- {SDL_SCANCODE_SEMICOLON, 1, 0, 27}, /* ; */
- {SDL_SCANCODE_SEMICOLON, 0, KMOD_SHIFT, 26}, /* : */
- {SDL_SCANCODE_PERIOD, 1, 0, 14}, /* . */
- {SDL_SCANCODE_MINUS, 1, 0, 13}, /* - */
- {SDL_SCANCODE_EQUALS, 0, KMOD_SHIFT, 11}, /* = */
- {SDL_SCANCODE_APOSTROPHE, 1, 0, 7}, /* ' */
- {SDL_SCANCODE_APOSTROPHE, 0, KMOD_SHIFT, 2}, /* " */
- {SDL_SCANCODE_5, 0, KMOD_SHIFT, 5}, /* % */
-
-};
-
-/*
- This function maps an SDL_KeySym to an index in the bitmap font.
- It does so by scanning through the font mapping table one entry
- at a time.
-
- If a match is found (scancode and allowed modifiers), the proper
- index is returned.
-
- If there is no entry for the key, -1 is returned
-*/
-int
-keyToIndex(SDL_Keysym key)
-{
- int i, index = -1;
- for (i = 0; i < TABLE_SIZE; i++) {
- fontMapping compare = map[i];
- if (key.scancode == compare.scancode) {
- /* if this entry is valid with no key mod and we have no keymod, or if
- the key's modifiers are allowed modifiers for that mapping */
- if ((compare.allow_no_mod && key.mod == 0)
- || (key.mod & compare.mod)) {
- index = compare.index;
- break;
- }
- }
- }
- return index;
-}
-
-/*
- This function returns and x,y position for a given character number.
- It is used for positioning each character of text
-*/
-void
-getPositionForCharNumber(int n, int *x, int *y)
-{
- int renderW, renderH;
- SDL_RenderGetLogicalSize(renderer, &renderW, &renderH);
-
- int x_padding = 16; /* padding space on left and right side of screen */
- int y_padding = 32; /* padding space at top of screen */
- /* figure out the number of characters that can fit horizontally across the screen */
- int max_x_chars = (renderW - 2 * x_padding) / GLYPH_SIZE_SCREEN;
- int line_separation = 5; /* pixels between each line */
- *x = (n % max_x_chars) * GLYPH_SIZE_SCREEN + x_padding;
- *y = (n / max_x_chars) * (GLYPH_SIZE_SCREEN + line_separation) +
- y_padding;
-}
-
-void
-drawIndex(int index)
-{
- int x, y;
- getPositionForCharNumber(numChars, &x, &y);
- SDL_Rect srcRect =
- { GLYPH_SIZE_IMAGE * index, 0, GLYPH_SIZE_IMAGE, GLYPH_SIZE_IMAGE };
- SDL_Rect dstRect = { x, y, GLYPH_SIZE_SCREEN, GLYPH_SIZE_SCREEN };
- drawBlank(x, y);
- SDL_RenderCopy(renderer, texture, &srcRect, &dstRect);
-}
-
-/* draws the cursor icon at the current end position of the text */
-void
-drawCursor(void)
-{
- drawIndex(29); /* cursor is at index 29 in the bitmap font */
-}
-
-/* paints over a glyph sized region with the background color
- in effect it erases the area
-*/
-void
-drawBlank(int x, int y)
-{
- SDL_Rect rect = { x, y, GLYPH_SIZE_SCREEN, GLYPH_SIZE_SCREEN };
- SDL_SetRenderDrawColor(renderer, bg_color.r, bg_color.g, bg_color.b, bg_color.a);
- SDL_RenderFillRect(renderer, &rect);
-}
-
-/* moves backwards one character, erasing the last one put down */
-void
-backspace(void)
-{
- int x, y;
- if (numChars > 0) {
- getPositionForCharNumber(numChars, &x, &y);
- drawBlank(x, y);
- numChars--;
- getPositionForCharNumber(numChars, &x, &y);
- drawBlank(x, y);
- drawCursor();
- }
-}
-
-/* this function loads our font into an SDL_Texture and returns the SDL_Texture */
-SDL_Texture*
-loadFont(void)
-{
-
- SDL_Surface *surface = SDL_LoadBMP("kromasky_16x16.bmp");
-
- if (!surface) {
- printf("Error loading bitmap: %s\n", SDL_GetError());
- return 0;
- } else {
- /* set the transparent color for the bitmap font (hot pink) */
- SDL_SetColorKey(surface, 1, SDL_MapRGB(surface->format, 238, 0, 252));
- /* now we convert the surface to our desired pixel format */
- int format = SDL_PIXELFORMAT_ABGR8888; /* desired texture format */
- Uint32 Rmask, Gmask, Bmask, Amask; /* masks for desired format */
- int bpp; /* bits per pixel for desired format */
- SDL_PixelFormatEnumToMasks(format, &bpp, &Rmask, &Gmask, &Bmask,
- &Amask);
- SDL_Surface *converted =
- SDL_CreateRGBSurface(0, surface->w, surface->h, bpp, Rmask, Gmask,
- Bmask, Amask);
- SDL_BlitSurface(surface, NULL, converted, NULL);
- /* create our texture */
- texture =
- SDL_CreateTextureFromSurface(renderer, converted);
- if (texture == 0) {
- printf("texture creation failed: %s\n", SDL_GetError());
- } else {
- /* set blend mode for our texture */
- SDL_SetTextureBlendMode(texture, SDL_BLENDMODE_BLEND);
- }
- SDL_FreeSurface(surface);
- SDL_FreeSurface(converted);
- return texture;
- }
-}
-
-int
-main(int argc, char *argv[])
-{
- int index; /* index of last key we pushed in the bitmap font */
- SDL_Window *window;
- SDL_Event event; /* last event received */
- SDL_Keymod mod; /* key modifiers of last key we pushed */
- SDL_Scancode scancode; /* scancode of last key we pushed */
- int width;
- int height;
-
- if (SDL_Init(SDL_INIT_VIDEO) < 0) {
- printf("Error initializing SDL: %s", SDL_GetError());
- }
- /* create window */
- window = SDL_CreateWindow("iPhone keyboard test", 0, 0, 320, 480, SDL_WINDOW_ALLOW_HIGHDPI);
- /* create renderer */
- renderer = SDL_CreateRenderer(window, -1, 0);
-
- SDL_GetWindowSize(window, &width, &height);
- SDL_RenderSetLogicalSize(renderer, width, height);
-
- /* load up our font */
- loadFont();
-
- /* draw the background, we'll just paint over it */
- SDL_SetRenderDrawColor(renderer, bg_color.r, bg_color.g, bg_color.b, bg_color.a);
- SDL_RenderFillRect(renderer, NULL);
- SDL_RenderPresent(renderer);
-
- int done = 0;
- /* loop till we get SDL_Quit */
- while (!done && SDL_WaitEvent(&event)) {
- switch (event.type) {
- case SDL_QUIT:
- done = 1;
- break;
- case SDL_KEYDOWN:
- index = keyToIndex(event.key.keysym);
- scancode = event.key.keysym.scancode;
- mod = event.key.keysym.mod;
- if (scancode == SDL_SCANCODE_DELETE) {
- /* if user hit delete, delete the last character */
- backspace();
- lastCharWasColon = 0;
- } else if (lastCharWasColon && scancode == SDL_SCANCODE_0
- && (mod & KMOD_SHIFT)) {
- /* if our last key was a colon and this one is a close paren, the make a hoppy face */
- backspace();
- drawIndex(32); /* index for happy face */
- numChars++;
- drawCursor();
- lastCharWasColon = 0;
- } else if (index != -1) {
- /* if we aren't doing a happy face, then just draw the normal character */
- drawIndex(index);
- numChars++;
- drawCursor();
- lastCharWasColon =
- (event.key.keysym.scancode == SDL_SCANCODE_SEMICOLON
- && (event.key.keysym.mod & KMOD_SHIFT));
- }
- /* check if the key was a colon */
- /* draw our updates to the screen */
- SDL_RenderPresent(renderer);
- break;
- case SDL_MOUSEBUTTONUP:
- /* mouse up toggles onscreen keyboard visibility */
- if (SDL_IsTextInputActive()) {
- SDL_StopTextInput();
- } else {
- SDL_StartTextInput();
- }
- break;
- }
- }
- cleanup();
- return 0;
-}
-
-/* clean up after ourselves like a good kiddy */
-void
-cleanup(void)
-{
- SDL_DestroyTexture(texture);
- SDL_Quit();
-}