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author | Arturo Espinosa <unammx@src.gnome.org> | 1999-11-18 02:42:18 +0800 |
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committer | Arturo Espinosa <unammx@src.gnome.org> | 1999-11-18 02:42:18 +0800 |
commit | c9419cb6a59539d8293105d79d00d7e43bc3739c (patch) | |
tree | be98b624e320209efa583f59fafb828aa7a0917a /e-util/e-cursors.c | |
parent | 5f7a40affc0cbceac3227fe77ae7d07b90b25067 (diff) | |
download | gsoc2013-evolution-c9419cb6a59539d8293105d79d00d7e43bc3739c.tar.gz gsoc2013-evolution-c9419cb6a59539d8293105d79d00d7e43bc3739c.tar.zst gsoc2013-evolution-c9419cb6a59539d8293105d79d00d7e43bc3739c.zip |
missing files
svn path=/trunk/; revision=1398
Diffstat (limited to 'e-util/e-cursors.c')
-rw-r--r-- | e-util/e-cursors.c | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/e-util/e-cursors.c b/e-util/e-cursors.c new file mode 100644 index 0000000000..acd69a0554 --- /dev/null +++ b/e-util/e-cursors.c @@ -0,0 +1,128 @@ +/* + * cursors.c: cursor handling for Evolution. + * copied from Gnumeric. + * + * Authors: + * Miguel de Icaza (miguel@gnu.org) + */ +#include <config.h> +#include <gnome.h> +#include "e-cursors.h" + +static GdkColor black, white; + +#define GDK_INTERNAL_CURSOR -1 + +typedef struct { + GdkCursor *cursor; + int hot_x, hot_y; + char **xpm; +} CursorDef; + +static CursorDef cursors [] = { + { NULL, GDK_INTERNAL_CURSOR, GDK_CROSSHAIR, NULL }, + { NULL, GDK_INTERNAL_CURSOR, GDK_ARROW, NULL }, + { NULL, GDK_INTERNAL_CURSOR, GDK_FLEUR, NULL }, + { NULL, GDK_INTERNAL_CURSOR, GDK_SB_H_DOUBLE_ARROW, NULL }, + { NULL, GDK_INTERNAL_CURSOR, GDK_SB_V_DOUBLE_ARROW, NULL }, + { NULL, 0, 0, NULL } +}; + + +static void +create_bitmap_and_mask_from_xpm (GdkBitmap **bitmap, GdkBitmap **mask, gchar **xpm) +{ + int height, width, colors; + char pixmap_buffer [(32 * 32)/8]; + char mask_buffer [(32 * 32)/8]; + int x, y, pix, yofs; + int transparent_color, black_color; + + sscanf (xpm [0], "%d %d %d %d", &height, &width, &colors, &pix); + + g_assert (height == 32); + g_assert (width == 32); + g_assert (colors <= 3); + + transparent_color = ' '; + black_color = '.'; + + yofs = colors + 1; + for (y = 0; y < 32; y++){ + for (x = 0; x < 32;){ + char value = 0, maskv = 0; + + for (pix = 0; pix < 8; pix++, x++){ + if (xpm [y + yofs][x] != transparent_color){ + maskv |= 1 << pix; + + /* + * Invert the colours here because it seems + * to workaround a bug the Matrox G100 Xserver? + * We reverse the foreground & background in the next + * routine to compensate. + */ + if (xpm [y + yofs][x] == black_color){ + value |= 1 << pix; + } + } + } + pixmap_buffer [(y * 4 + x/8)-1] = value; + mask_buffer [(y * 4 + x/8)-1] = maskv; + } + } + *bitmap = gdk_bitmap_create_from_data (NULL, pixmap_buffer, 32, 32); + *mask = gdk_bitmap_create_from_data (NULL, mask_buffer, 32, 32); +} + +void +e_cursors_init (void) +{ + GdkColormap *colormap; + int i; + + colormap = gtk_widget_get_default_colormap (); + gdk_color_white (colormap, &white); + gdk_color_black (colormap, &black); + + for (i = 0; cursors [i].hot_x; i++){ + GdkBitmap *bitmap, *mask; + + if (cursors [i].hot_x < 0) + cursors [i].cursor = gdk_cursor_new (cursors [i].hot_y); + else { + create_bitmap_and_mask_from_xpm (&bitmap, &mask, cursors [i].xpm); + + /* The foreground and background colours are reversed. + * See comment above for explanation. + */ + cursors [i].cursor = + gdk_cursor_new_from_pixmap ( + bitmap, mask, + &black, &white, + cursors [i].hot_x, + cursors [i].hot_y); + } + } + + g_assert (i == E_NUM_CURSORS); +} + +void +e_cursors_shutdown (void) +{ + int i; + + for (i = 0; cursors [i].hot_x; i++) + gdk_cursor_destroy (cursors [i].cursor); +} + + +/* Returns a cursor given its type */ +GdkCursor * +e_cursor_get (ECursorType type) +{ + g_return_val_if_fail (type >= 0 && type < E_NUM_CURSORS, NULL); + + return cursors [type].cursor; +} |