void load_graph_set_color(LoadGraph * lg, LoadGraphColor color)
{
lg->color = color;
gdk_rgb_gc_set_foreground(lg->trace, lg->color);
gdk_rgb_gc_set_foreground(lg->fill, lg->color - 0x303030);
gdk_rgb_gc_set_foreground(lg->grid, lg->color - 0xcdcdcd);
}
gint
wgra_configure(GtkWidget *widget,GdkEventConfigure *ee,gpointer data)
{
GdkGC *mygc;
int x,y,cx,xs;
int i,v;
long max;
float fac;
GdkFont *fn;
if (wcanvas!=NULL)
gdk_pixmap_unref(wcanvas);
mygc=gdk_gc_new(widget->window);
wcanvas=gdk_pixmap_new(widget->window,x=widget->allocation.width,
y=widget->allocation.height,-1);
gdk_draw_rectangle(wcanvas,widget->style->white_gc,TRUE,0,0,x,y);
gdk_draw_rectangle(wcanvas,widget->style->black_gc,FALSE,0,0,x-1,y-1);
max=0;
for(i=0;i<7;i++)
if (weekly[i]>max)
max=weekly[i];
if (!max) max=1;
fac=((float)(y-18-16))/((float)max);
cx=1;
xs=(x-2)/7;
fn=gdk_font_load("-*-helvetica-medium-r-*-*-8-*-*-*-*-*-*-*");
for (i=0;i<7;i++) {
v=(int)(((float)weekly[i])*fac);
gdk_rgb_gc_set_foreground(mygc,0xc0c0c0);
gdk_draw_line(wcanvas,mygc,cx,1,cx,y-2);
gdk_rgb_gc_set_foreground(mygc,0x004080);
gdk_draw_rectangle(wcanvas,mygc,TRUE,cx,y-18-v,xs,v);
gdk_rgb_gc_set_foreground(mygc,0x000000);
gdk_draw_string(wcanvas,fn,mygc,cx,y-6,wdays[i]);
cx+=xs;
}
gdk_draw_line(wcanvas,widget->style->black_gc,0,y-18,x-1,y-18);
gdk_rgb_gc_set_foreground(mygc,0xffffff);
gdk_draw_rectangle(wcanvas,mygc,TRUE,0,0,23*4,13);
gdk_rgb_gc_set_foreground(mygc,0x000000);
gdk_draw_rectangle(wcanvas,mygc,FALSE,0,0,23*4,13);
gdk_font_unref(fn);
fn=gdk_font_load("-*-helvetica-medium-r-*-*-10-*-*-*-*-*-*-*");
gdk_draw_string(wcanvas,fn,mygc,5,10,"weekday summary");
gdk_font_unref(fn);
gdk_gc_destroy(mygc);
return FALSE;
}
void draw_swatch_color (GtkWidget * widget,
HSV hsv) {
GdkGC * black_gc, * color_gc;
RGB rgb;
guint32 rgb32 = 0;
gint width, height, x, y;
GdkPixbuf * brightness;
GtkAllocation allocation;
brightness = g_object_get_data(G_OBJECT (widget), DATA_V_PIXBUF);
hsv_to_rgb(&hsv, &rgb);
rgb32 =
((int) (rgb.R * 255.0)) << 16 |
((int) (rgb.G * 255.0)) << 8 |
((int) (rgb.B * 255.0));
black_gc = gdk_gc_new(gtk_widget_get_window(widget));
color_gc = gdk_gc_new(gtk_widget_get_window(widget));
gdk_rgb_gc_set_foreground(black_gc, 0);
gdk_rgb_gc_set_foreground(color_gc, rgb32);
width = gdk_pixbuf_get_width(brightness);
gtk_widget_get_allocation(widget, &allocation);
height = (allocation.height -
2*COLORWHEEL_SELECT) * COLORWHEEL_SWATCH_HEIGHT;
x = allocation.width -
width -
COLORWHEEL_SELECT;
y = allocation.height - COLORWHEEL_SELECT - height;
gdk_draw_rectangle (gtk_widget_get_window(widget),
black_gc,
FALSE,
x, y,
width - 1, height - 1 );
gdk_draw_rectangle (gtk_widget_get_window(widget),
color_gc,
TRUE,
x + 1, y + 1,
width - 2, height - 2 );
gdk_gc_unref(black_gc);
gdk_gc_unref(color_gc);
}
void draw_selected_color (GtkWidget * widget,
HSV hsv, GdkPixbuf **pixbufs) {
GdkGC * gc;
float angle, radius;
GdkPixbuf * colorwheel, * brightness;
gint xcenter, ycenter, x, y, width, height;
GtkAllocation allocation;
gc = gdk_gc_new(gtk_widget_get_window(widget));
gdk_rgb_gc_set_foreground(gc, 0);
colorwheel = g_object_get_data(G_OBJECT (widget), DATA_HS_PIXBUF);
brightness = g_object_get_data(G_OBJECT (widget), DATA_V_PIXBUF);
width = gdk_pixbuf_get_width(brightness);
height = gdk_pixbuf_get_height(brightness);
gtk_widget_get_allocation(widget, &allocation);
x = allocation.width -
gdk_pixbuf_get_width(brightness) -
2*COLORWHEEL_SELECT;
y = (1.0 - hsv.V) * (float) gdk_pixbuf_get_height(brightness);
gdk_draw_line(
gtk_widget_get_window(widget), gc,
x, y + COLORWHEEL_SELECT,
allocation.width, COLORWHEEL_SELECT + y);
/* Hue is 0..6 */
angle = (hsv.H / 3) * (M_PI);
radius = (hsv.S * gdk_pixbuf_get_width(colorwheel)) / 2.0;
x = radius * cos (angle);
y = radius * sin (angle);
width = gdk_pixbuf_get_width(pixbufs[PM_COLOR_SEL]);
height = gdk_pixbuf_get_height(pixbufs[PM_COLOR_SEL]);
xcenter = allocation.height / 2.0; // Use height on purpose
ycenter = allocation.height / 2.0;
gdk_pixbuf_render_to_drawable_alpha(
pixbufs[PM_COLOR_SEL],
gtk_widget_get_window(widget),
0, 0,
(xcenter + x) - width/2, (ycenter + y) - height/2,
width,
height,
GDK_PIXBUF_ALPHA_FULL,
127,
GDK_RGB_DITHER_NORMAL,
0, 0);
gdk_gc_unref(gc);
}
void load_graph_configure_expose(LoadGraph * lg)
{
/* creates the backing store pixmap */
gtk_widget_realize(lg->area);
lg->buf = gdk_pixmap_new(lg->area->window, lg->width, lg->height, -1);
/* create the graphic contexts */
lg->grid = gdk_gc_new(GDK_DRAWABLE(lg->buf));
lg->trace = gdk_gc_new(GDK_DRAWABLE(lg->buf));
lg->fill = gdk_gc_new(GDK_DRAWABLE(lg->buf));
/* the default color is green */
load_graph_set_color(lg, LG_COLOR_GREEN);
/* init graphic contexts */
gdk_gc_set_line_attributes(lg->grid,
1, GDK_LINE_ON_OFF_DASH,
GDK_CAP_NOT_LAST, GDK_JOIN_ROUND);
gdk_gc_set_dashes(lg->grid, 0, (gint8*)"\2\2", 2);
#if 0 /* old-style grid */
gdk_rgb_gc_set_foreground(lg->grid, 0x707070);
#endif
gdk_gc_set_line_attributes(lg->trace,
1, GDK_LINE_SOLID,
GDK_CAP_PROJECTING, GDK_JOIN_ROUND);
#if 0 /* old-style fill */
gdk_gc_set_line_attributes(lg->fill,
1, GDK_LINE_SOLID,
GDK_CAP_BUTT, GDK_JOIN_BEVEL);
#endif
/* configures the expose event */
g_signal_connect(G_OBJECT(lg->area), "expose-event",
(GCallback) _expose, lg);
}
