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* Updated the migration guide.

tags/v0.99.beta14
Sam Hocevar sam 18 年之前
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eb938019d8
共有 2 個檔案被更改,包括 41 行新增18 行删除
  1. +1
    -1
      doc/libcaca.dox
  2. +40
    -17
      doc/migrating.dox

+ 1
- 1
doc/libcaca.dox 查看文件

@@ -1,6 +1,6 @@
/* $Id$ */

/** \mainpage libcaca Developer Documentation
/** \mainpage libcaca Documentation

\section intro Introduction



+ 40
- 17
doc/migrating.dox 查看文件

@@ -11,6 +11,7 @@
\e libcaca / \e libcucul split and the object-oriented design. Where
you used to do:

<table border="0"><tr><td valign="top">
\code
#include <caca.h>

@@ -19,11 +20,12 @@ int main(void)
/* Initialise libcaca */
caca_init();
/* Set window title */
caca_set_window_title("Hello!");
caca_set_window_title("Window");
/* Choose drawing colours */
caca_set_color(CACA_COLOR_BLACK, CACA_COLOR_WHITE);
/* Draw a string at coordinates (0, 0) */
caca_putstr(0, 0, "This is a message");
caca_set_color(CACA_COLOR_BLACK,
CACA_COLOR_WHITE);
/* Draw a string at (0, 0) */
caca_putstr(0, 0, "Hello world!");
/* Refresh display */
caca_refresh();
/* Wait for a key press event */
@@ -34,9 +36,7 @@ int main(void)
return 0;
}
\endcode

You now do:

</td><td>
\code
#include <cucul.h>
#include <caca.h>
@@ -44,19 +44,22 @@ int main(void)
int main(void)
{
/* Initialise libcaca */
cucul_canvas_t *cv; caca_display_t *dp; caca_event_t ev;
cucul_canvas_t *cv;
caca_display_t *dp; caca_event_t ev;
cv = cucul_create_canvas(0, 0);
dp = caca_create_display(cv);
/* Set window title */
caca_set_display_title(dp, "Hello!");
caca_set_display_title(dp, "Window");
/* Choose drawing colours */
cucul_set_color(cv, CUCUL_COLOR_BLACK, CUCUL_COLOR_WHITE);
/* Draw a string at coordinates (0, 0) */
cucul_putstr(cv, 0, 0, "This is a message");
cucul_set_color(cv, CUCUL_COLOR_BLACK,
CUCUL_COLOR_WHITE);
/* Draw a string at (0, 0) */
cucul_putstr(cv, 0, 0, "Hello world!");
/* Refresh display */
caca_refresh_display();
/* Wait for a key press event */
caca_get_event(dp, CACA_EVENT_KEY_PRESS, &ev, -1);
caca_get_event(dp, CACA_EVENT_KEY_PRESS,
&ev, -1);
/* Clean up library */
caca_free_display(dp);
cucul_free_canvas(cv);
@@ -64,6 +67,7 @@ int main(void)
return 0;
}
\endcode
</td></tr></table>

Note the following important things:

@@ -96,7 +100,8 @@ int main(void)

\subsection bar2 Event handling

- \b caca_get_event(): unchanged.
- \b caca_get_event(): unchanged, but the event information retrieval
changed a lot.
- \b caca_wait_event(): use caca_get_event() with a \c timeout argument
of \b -1.
- \b caca_get_mouse_x(): unchanged.
@@ -115,6 +120,9 @@ int main(void)

\subsection bar4 Primitives drawing

These functions are almost unchanged, except for Unicode support and the
fact that they now act on a given canvas.

- \b caca_draw_line(): use cucul_draw_line().
- \b caca_draw_polyline(): use cucul_draw_polyline().
- \b caca_draw_thin_line(): use cucul_draw_thin_line().
@@ -135,15 +143,30 @@ int main(void)

\subsection bar5 Mathematical functions

- \b caca_rand(): use cucul_rand()
- \b caca_sqrt(): this function is now deprecated
- \b caca_rand(): use cucul_rand(). The second argument is different, make
sure you take that into account.
- \b caca_sqrt(): this function is now deprecated, use your system's
\b sqrt() call instead.

\subsection bar6 Sprite handling

The sprite handling functions are currently being reworked.
The newly introduced canvases can have several frames. Sprites are hence
completely deprecated.

- \b caca_load_sprite(): use cucul_import_canvas().
- \b caca_get_sprite_frames(): use cucul_get_canvas_frame_count().
- \b caca_get_sprite_width(): use cucul_get_canvas_width().
- \b caca_get_sprite_height(): use cucul_get_canvas_height().
- \b caca_get_sprite_dx(): this function is now deprecated.
- \b caca_get_sprite_dy(): this function is now deprecated.
- \b caca_draw_sprite(): use cucul_set_canvas_frame() and cucul_blit().
- \b caca_free_sprite(): use cucul_free_canvas().

\subsection bar7 Bitmap handling

Bitmaps have been renamed to dithers, because these objects do not in fact
store any pixels, they just have information on how bitmaps will be dithered.

- \b caca_create_bitmap(): use cucul_create_dither().
- \b caca_set_bitmap_palette(): use cucul_set_dither_palette().
- \b caca_draw_bitmap(): use cucul_dither_bitmap().


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