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Implemented text and clipping primitives in the frontend, and added

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two new simple games `fifteen' and `sixteen'.

[originally from svn r4173]
This commit is contained in:
Simon Tatham
2004-04-29 18:10:22 +00:00
parent 4b9d755252
commit fa7ef572c7
9 changed files with 1401 additions and 25 deletions
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89
gtk.c
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@ -34,6 +34,12 @@ void fatal(char *fmt, ...)
* GTK front end to puzzles.
*/
struct font {
GdkFont *font;
int type;
int size;
};
/*
* This structure holds all the data relevant to a single window.
* In principle this would allow us to open multiple independent
@ -53,6 +59,8 @@ struct frontend {
GdkGC *gc;
int bbox_l, bbox_r, bbox_u, bbox_d;
int timer_active, timer_id;
struct font *fonts;
int nfonts, fontsize;
};
void frontend_default_colour(frontend *fe, float *output)
@ -72,6 +80,85 @@ void start_draw(frontend *fe)
fe->bbox_d = 0;
}
void clip(frontend *fe, int x, int y, int w, int h)
{
GdkRectangle rect;
rect.x = x;
rect.y = y;
rect.width = w;
rect.height = h;
gdk_gc_set_clip_rectangle(fe->gc, &rect);
}
void unclip(frontend *fe)
{
GdkRectangle rect;
rect.x = 0;
rect.y = 0;
rect.width = fe->w;
rect.height = fe->h;
gdk_gc_set_clip_rectangle(fe->gc, &rect);
}
void draw_text(frontend *fe, int x, int y, int fonttype, int fontsize,
int align, int colour, char *text)
{
int i;
/*
* Find or create the font.
*/
for (i = 0; i < fe->nfonts; i++)
if (fe->fonts[i].type == fonttype && fe->fonts[i].size == fontsize)
break;
if (i == fe->nfonts) {
if (fe->fontsize <= fe->nfonts) {
fe->fontsize = fe->nfonts + 10;
fe->fonts = sresize(fe->fonts, fe->fontsize, struct font);
}
fe->nfonts++;
fe->fonts[i].type = fonttype;
fe->fonts[i].size = fontsize;
/*
* FIXME: Really I should make at least _some_ effort to
* pick the correct font.
*/
fe->fonts[i].font = gdk_font_load("variable");
}
/*
* Find string dimensions and process alignment.
*/
{
int lb, rb, wid, asc, desc;
gdk_string_extents(fe->fonts[i].font, text,
&lb, &rb, &wid, &asc, &desc);
if (align & ALIGN_VCENTRE)
y += asc - (asc+desc)/2;
if (align & ALIGN_HCENTRE)
x -= wid / 2;
else if (align & ALIGN_HRIGHT)
x -= wid;
}
/*
* Set colour and actually draw text.
*/
gdk_gc_set_foreground(fe->gc, &fe->colours[colour]);
gdk_draw_string(fe->pixmap, fe->fonts[i].font, fe->gc, x, y, text);
}
void draw_rect(frontend *fe, int x, int y, int w, int h, int colour)
{
gdk_gc_set_foreground(fe->gc, &fe->colours[colour]);
@ -405,6 +492,8 @@ static frontend *new_window(void)
gtk_box_pack_end(vbox, fe->area, FALSE, FALSE, 0);
fe->pixmap = NULL;
fe->fonts = NULL;
fe->nfonts = fe->fontsize = 0;
fe->timer_active = FALSE;