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Diffstat (limited to 'examples/pugl_clipboard_demo.c')
| -rw-r--r-- | examples/pugl_clipboard_demo.c | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/examples/pugl_clipboard_demo.c b/examples/pugl_clipboard_demo.c new file mode 100644 index 0000000..76e42f8 --- /dev/null +++ b/examples/pugl_clipboard_demo.c @@ -0,0 +1,210 @@ +// Copyright 2012-2022 David Robillard <d@drobilla.net> +// SPDX-License-Identifier: ISC + +// A demonstration of using clipboards for copy/paste and drag and drop + +#include "cube_view.h" +#include "test/test_utils.h" + +#include "pugl/gl.h" +#include "pugl/pugl.h" + +#include <math.h> +#include <stdbool.h> +#include <stdio.h> +#include <string.h> + +typedef struct { + PuglView* view; + double xAngle; + double yAngle; + double lastMouseX; + double lastMouseY; + double lastDrawTime; + bool entered; +} CubeView; + +typedef struct { + PuglWorld* world; + CubeView cube; + int quit; + bool continuous; + bool verbose; +} PuglTestApp; + +static void +onDisplay(PuglView* view) +{ + PuglWorld* world = puglGetWorld(view); + PuglTestApp* app = (PuglTestApp*)puglGetWorldHandle(world); + CubeView* cube = (CubeView*)puglGetHandle(view); + + const double thisTime = puglGetTime(app->world); + if (app->continuous) { + const double dTime = thisTime - cube->lastDrawTime; + + cube->xAngle = fmod(cube->xAngle + dTime * 100.0, 360.0); + cube->yAngle = fmod(cube->yAngle + dTime * 100.0, 360.0); + } + + displayCube( + view, 10.0f, (float)cube->xAngle, (float)cube->yAngle, cube->entered); + + cube->lastDrawTime = thisTime; +} + +static void +onKeyPress(PuglView* const view, const PuglKeyEvent* const event) +{ + static const char* const copyString = "Pugl test"; + + PuglWorld* const world = puglGetWorld(view); + PuglTestApp* const app = (PuglTestApp*)puglGetWorldHandle(world); + + if (event->key == 'q' || event->key == PUGL_KEY_ESCAPE) { + app->quit = 1; + } else if ((event->state & PUGL_MOD_CTRL) && event->key == 'c') { + puglSetClipboard(view, NULL, copyString, strlen(copyString) + 1); + + fprintf(stderr, "Copy \"%s\"\n", copyString); + } else if ((event->state & PUGL_MOD_CTRL) && event->key == 'v') { + const char* type = NULL; + size_t len = 0; + const char* text = (const char*)puglGetClipboard(view, &type, &len); + + fprintf(stderr, "Paste \"%s\"\n", text); + } +} + +static void +redisplayView(PuglTestApp* app, PuglView* view) +{ + if (!app->continuous) { + puglPostRedisplay(view); + } +} + +static PuglStatus +onEvent(PuglView* view, const PuglEvent* event) +{ + PuglWorld* world = puglGetWorld(view); + PuglTestApp* app = (PuglTestApp*)puglGetWorldHandle(world); + CubeView* cube = (CubeView*)puglGetHandle(view); + + printEvent(event, "Event: ", app->verbose); + + switch (event->type) { + case PUGL_CONFIGURE: + reshapeCube((float)event->configure.width, (float)event->configure.height); + break; + case PUGL_UPDATE: + if (app->continuous) { + puglPostRedisplay(view); + } + break; + case PUGL_EXPOSE: + onDisplay(view); + break; + case PUGL_CLOSE: + app->quit = 1; + break; + case PUGL_KEY_PRESS: + onKeyPress(view, &event->key); + break; + case PUGL_MOTION: +#if defined(__GNUC__) && (__GNUC__ >= 5) +# pragma GCC diagnostic push +# pragma GCC diagnostic ignored "-Wfloat-conversion" +#endif + if (isnan(cube->lastMouseX)) { + cube->lastMouseX = event->motion.x; + } + if (isnan(cube->lastMouseY)) { + cube->lastMouseY = event->motion.y; + } +#if defined(__GNUC__) && (__GNUC__ >= 5) +# pragma GCC diagnostic pop +#endif + cube->xAngle -= (event->motion.x - cube->lastMouseX) / 2.0; + cube->yAngle += (event->motion.y - cube->lastMouseY) / 2.0; + cube->lastMouseX = event->motion.x; + cube->lastMouseY = event->motion.y; + redisplayView(app, view); + break; + case PUGL_POINTER_IN: + cube->entered = true; + redisplayView(app, view); + break; + case PUGL_POINTER_OUT: + cube->entered = false; + redisplayView(app, view); + break; + case PUGL_FOCUS_IN: + case PUGL_FOCUS_OUT: + redisplayView(app, view); + break; + default: + break; + } + + return PUGL_SUCCESS; +} + +int +main(int argc, char** argv) +{ + // Parse command line options + const PuglTestOptions opts = puglParseTestOptions(&argc, &argv); + if (opts.help) { + puglPrintTestUsage(argv[0], ""); + return 1; + } + + PuglTestApp app = {0}; + + app.world = puglNewWorld(PUGL_PROGRAM, 0); + app.cube.view = puglNewView(app.world); + app.cube.xAngle = 30.0; + app.cube.yAngle = -30.0; + app.cube.lastMouseX = (double)NAN; + app.cube.lastMouseY = (double)NAN; + app.verbose = opts.verbose; + app.continuous = opts.continuous; + + PuglStatus st = PUGL_SUCCESS; + PuglView* const view = app.cube.view; + + puglSetWorldHandle(app.world, &app); + puglSetClassName(app.world, "Pugl Test"); + + puglSetWindowTitle(view, "Pugl Clipboard Demo"); + puglSetSizeHint(view, PUGL_DEFAULT_SIZE, 512, 512); + puglSetSizeHint(view, PUGL_MIN_SIZE, 128, 128); + puglSetBackend(view, puglGlBackend()); + + puglSetViewHint(view, PUGL_USE_DEBUG_CONTEXT, opts.errorChecking); + puglSetViewHint(view, PUGL_RESIZABLE, opts.resizable); + puglSetViewHint(view, PUGL_SAMPLES, opts.samples); + puglSetViewHint(view, PUGL_DOUBLE_BUFFER, opts.doubleBuffer); + puglSetViewHint(view, PUGL_SWAP_INTERVAL, opts.sync); + puglSetViewHint(view, PUGL_IGNORE_KEY_REPEAT, opts.ignoreKeyRepeat); + puglSetHandle(view, &app.cube); + puglSetEventFunc(view, onEvent); + + if ((st = puglRealize(view))) { + return logError("Failed to realize view (%s)\n", puglStrerror(st)); + } + + if ((st = puglShow(view))) { + return logError("Failed to show view (%s)\n", puglStrerror(st)); + } + + while (!app.quit) { + puglUpdate(app.world, app.continuous ? 0.0 : -1.0); + } + + puglFreeView(app.cube.view); + puglFreeWorld(app.world); + + return 0; +} |