#include <stdlib.h>
#include <stdio.h>
#include "SDL_test_common.h"

Include dependency graph for testcustomcursor.c:

Functions
static SDL_Cursor *	init_color_cursor (const char *file)
static SDL_Cursor *	init_system_cursor (const char *image[])
static void	quit (int rc)
void	loop ()
int	main (int argc, char *argv[])

Variables
static const char *	arrow []
static SDLTest_CommonState *	state
int	done
static SDL_Cursor *	cursors [1+SDL_NUM_SYSTEM_CURSORS]
static int	current_cursor
static int	show_cursor

Function Documentation

static SDL_Cursor* init_color_cursor ( const char * file )

static

Definition at line 71 of file testcustomcursor.c.

References SDL_PixelFormat::BitsPerPixel, cursor, SDL_Surface::format, NULL, SDL_PixelFormat::palette, SDL_Surface::pixels, SDL_CreateColorCursor, SDL_FreeSurface, SDL_LoadBMP, and SDL_SetColorKey.

Referenced by main().

{
    SDL_Cursor *cursor = NULL;
    SDL_Surface *surface = SDL_LoadBMP(file);
    if (surface) {
        if (surface->format->palette) {
            SDL_SetColorKey(surface, 1, *(Uint8 *) surface->pixels);
        } else {
            switch (surface->format->BitsPerPixel) {
            case 15:
                SDL_SetColorKey(surface, 1, (*(Uint16 *)surface->pixels) & 0x00007FFF);
                break;
            case 16:
                SDL_SetColorKey(surface, 1, *(Uint16 *)surface->pixels);
                break;
            case 24:
                SDL_SetColorKey(surface, 1, (*(Uint32 *)surface->pixels) & 0x00FFFFFF);
                break;
            case 32:
                SDL_SetColorKey(surface, 1, *(Uint32 *)surface->pixels);
                break;
            }
        }
        cursor = SDL_CreateColorCursor(surface, 0, 0);
        SDL_FreeSurface(surface);
    }
    return cursor;
}

static SDL_Cursor* init_system_cursor ( const char * image[] )

static

Definition at line 101 of file testcustomcursor.c.

References hot_x, i, and SDL_CreateCursor.

Referenced by main().

{
  int i, row, col;
  Uint8 data[4*32];
  Uint8 mask[4*32];
  int hot_x, hot_y;
  i = -1;
  for (row=0; row<32; ++row) {
    for (col=0; col<32; ++col) {
      if (col % 8) {
        data[i] <<= 1;
        mask[i] <<= 1;
      } else {
        ++i;
        data[i] = mask[i] = 0;
      }
      switch (image[4+row][col]) {
        case 'X':
          data[i] |= 0x01;
          mask[i] |= 0x01;
          break;
        case '.':
          mask[i] |= 0x01;
          break;
        case ' ':
          break;
      }
    }
  }
  sscanf(image[4+row], "%d,%d", &hot_x, &hot_y);
  return SDL_CreateCursor(data, mask, 32, 32, hot_x, hot_y);
}

void loop ( )

Definition at line 150 of file testcustomcursor.c.

References SDL_MouseButtonEvent::button, SDL_Event::button, current_cursor, done, i, SDLTest_CommonState::num_windows, renderer, SDLTest_CommonState::renderers, SDL_arraysize, SDL_BUTTON_LEFT, SDL_MOUSEBUTTONDOWN, SDL_PollEvent, SDL_RenderClear, SDL_RenderPresent, SDL_SetCursor, SDL_ShowCursor, SDLTest_CommonEvent(), show_cursor, and SDL_Event::type.

{
    int i;
    SDL_Event event;
    /* Check for events */
    while (SDL_PollEvent(&event)) {
        SDLTest_CommonEvent(state, &event, &done);
        if (event.type == SDL_MOUSEBUTTONDOWN) {
            if (event.button.button == SDL_BUTTON_LEFT) {
                ++current_cursor;
                if (current_cursor == SDL_arraysize(cursors)) {
                    current_cursor = 0;
                }
                SDL_SetCursor(cursors[current_cursor]);
            } else {
                show_cursor = !show_cursor;
                SDL_ShowCursor(show_cursor);
            }
        }
    }
    
    for (i = 0; i < state->num_windows; ++i) {
        SDL_Renderer *renderer = state->renderers[i];
        SDL_RenderClear(renderer);
        SDL_RenderPresent(renderer);
    }
#ifdef __EMSCRIPTEN__
    if (done) {
        emscripten_cancel_main_loop();
    }
#endif
}

int main	(	int	argc,
		char *	argv[]
	)

Definition at line 184 of file testcustomcursor.c.

References arrow, done, i, init_color_cursor(), init_system_cursor(), loop(), NULL, SDLTest_CommonState::num_windows, quit(), renderer, SDLTest_CommonState::renderers, SDL_arraysize, SDL_CreateSystemCursor, SDL_FreeCursor, SDL_INIT_VIDEO, SDL_Log, SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO, SDL_LogSetPriority, SDL_NUM_SYSTEM_CURSORS, SDL_RenderClear, SDL_SetCursor, SDL_SetRenderDrawColor, SDLTest_CommonArg(), SDLTest_CommonCreateState(), SDLTest_CommonInit(), and SDLTest_CommonUsage().

{
    int i;
    const char *color_cursor = NULL;
    /* 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;) {
        int consumed;
        consumed = SDLTest_CommonArg(state, i);
        if (consumed == 0) {
            color_cursor = argv[i];
            break;
        }
        if (consumed < 0) {
            SDL_Log("Usage: %s %s\n", argv[0], SDLTest_CommonUsage(state));
            quit(1);
        }
        i += consumed;
    }
    if (!SDLTest_CommonInit(state)) {
        quit(2);
    }
    for (i = 0; i < state->num_windows; ++i) {
        SDL_Renderer *renderer = state->renderers[i];
        SDL_SetRenderDrawColor(renderer, 0xA0, 0xA0, 0xA0, 0xFF);
        SDL_RenderClear(renderer);
    }
    if (color_cursor) {
        cursors[0] = init_color_cursor(color_cursor);
    } else {
        cursors[0] = init_system_cursor(arrow);
    }
    if (!cursors[0]) {
        SDL_Log("Error, couldn't create cursor\n");
        quit(2);
    }
    for (i = 0; i < SDL_NUM_SYSTEM_CURSORS; ++i) {
        cursors[1+i] = SDL_CreateSystemCursor((SDL_SystemCursor)i);
        if (!cursors[1+i]) {
            SDL_Log("Error, couldn't create system cursor %d\n", i);
            quit(2);
        }
    }
    SDL_SetCursor(cursors[0]);
    /* Main render loop */
    done = 0;
#ifdef __EMSCRIPTEN__
    emscripten_set_main_loop(loop, 0, 1);
#else
    while (!done) {
        loop();
    }
#endif
    for (i = 0; i < SDL_arraysize(cursors); ++i) {
        SDL_FreeCursor(cursors[i]);
    }
    quit(0);
    /* keep the compiler happy ... */
    return(0);
}

static void quit ( int rc )

static

Definition at line 143 of file testcustomcursor.c.

References SDLTest_CommonQuit().

{
    SDLTest_CommonQuit(state);
    exit(rc);
}

Variable Documentation

const char* arrow[]

static

Definition at line 27 of file testcustomcursor.c.

Referenced by main().

int current_cursor

static

Definition at line 138 of file testcustomcursor.c.

Referenced by loop().

SDL_Cursor* cursors[1+SDL_NUM_SYSTEM_CURSORS]

static

Definition at line 137 of file testcustomcursor.c.

int done

Definition at line 136 of file testcustomcursor.c.

int show_cursor

static

Definition at line 139 of file testcustomcursor.c.

Referenced by loop().

SDLTest_CommonState* state

static

Definition at line 135 of file testcustomcursor.c.

Functions

Variables

Function Documentation

Variable Documentation