Completed Negative Magic tool as a plugin (except sound).

Created Mirror and Flip Magic tools as plugins (except sound); hooks added to Magic plugin API to allow starter and starter-undo mirror/flip. Created Fade and Darken Magic tools as plugins. Moved magic tool sounds to 'magic'. Added flip and mirror icons to main Tux Paint UI (used to share magic tools') Created 'tp-magic-config.sh' to get CFLAGS for compiling magic tool plugins. Improved magic tool plugin API. Committed some documentation on magic tool plugin API.
2007-07-05 19:20:58 +00:00 · 2007-07-05 19:20:58 +00:00 · 47e44cb80f
commit 47e44cb80f
parent c6aa0af0a9
32 changed files with 917 additions and 729 deletions
--- a/magic/src/mirror_flip.c
+++ b/magic/src/mirror_flip.c
@ -0,0 +1,136 @@
+#include <stdio.h>
+#include <string.h>
+#include <libintl.h>
+#include "tp_magic_api.h"
+#include "SDL_image.h"
+
+/* What tools we contain: */
+
+enum {
+  TOOL_MIRROR,
+  TOOL_FLIP,
+  NUM_TOOLS
+};
+
+// No setup required:
+int mirror_flip_init(magic_api * api)
+{
+  return(1);
+}
+
+// We have multiple tools:
+int mirror_flip_get_tool_count(magic_api * api)
+{
+  return(NUM_TOOLS);
+}
+
+// Load our icons:
+SDL_Surface * mirror_flip_get_icon(magic_api * api, int which)
+{
+  char fname[1024];
+
+  if (which == TOOL_MIRROR)
+  {
+    snprintf(fname, sizeof(fname), "%s/images/magic/mirror.png",
+	     api->data_directory);
+  }
+  else if (which == TOOL_FLIP)
+  {
+    snprintf(fname, sizeof(fname), "%s/images/magic/flip.png",
+	     api->data_directory);
+  }
+
+  return(IMG_Load(fname));
+}
+
+// Return our names, localized:
+char * mirror_flip_get_name(magic_api * api, int which)
+{
+  if (which == TOOL_MIRROR)
+    return(strdup(gettext("Mirror")));
+  else if (which == TOOL_FLIP)
+    return(strdup(gettext("Flip")));
+
+  return(NULL);
+}
+
+// Return our descriptions, localized:
+char * mirror_flip_get_description(magic_api * api, int which)
+{
+  if (which == TOOL_MIRROR)
+    return(strdup(
+           gettext("Click to flip the picture upside-down.")));
+  else
+    return(strdup(
+           gettext("Click to make a mirror image.")));
+
+  return(NULL);
+}
+
+// We affect the whole canvas, so only do things on click, not drag:
+void mirror_flip_drag(magic_api * api, int which, SDL_Surface * canvas,
+	  SDL_Surface * last, int ox, int oy, int x, int y)
+{
+  // No-op
+}
+
+// Affect the canvas on click:
+void mirror_flip_click(magic_api * api, int which,
+	   SDL_Surface * canvas, SDL_Surface * last,
+	   int x, int y)
+{
+  int xx, yy;
+  SDL_Rect src, dest;
+
+  if (which == TOOL_MIRROR)
+  {
+    for (xx = 0; xx < canvas->w; xx++)
+    {
+      src.x = xx;
+      src.y = 0;
+      src.w = 1;
+      src.h = canvas->h;
+
+      dest.x = canvas->w - xx - 1;
+      dest.y = 0;
+
+      SDL_BlitSurface(last, &src, canvas, &dest);
+    }
+
+    api->special_notify(SPECIAL_MIRROR);
+  }
+  else if (which == TOOL_FLIP)
+  {
+    for (yy = 0; yy < canvas->h; yy++)
+    {
+      src.x = 0;
+      src.y = yy;
+      src.w = canvas->w;
+      src.h = 1;
+
+      dest.x = 0;
+      dest.y = canvas->h - yy - 1;
+
+      SDL_BlitSurface(last, &src, canvas, &dest);
+    }
+
+    api->special_notify(SPECIAL_FLIP);
+  }
+}
+
+// No setup happened:
+void mirror_flip_shutdown(magic_api * api)
+{
+}
+
+// We don't use colors:
+void mirror_flip_set_color(magic_api * api, Uint8 r, Uint8 g, Uint8 b)
+{
+}
+
+// We don't use colors:
+int mirror_flip_requires_colors(magic_api * api, int which)
+{
+  return 0;
+}
+