static void
_button_size_request(GtkWidget *widget,GtkRequisition *requisition)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (DTGTK_IS_BUTTON(widget));
g_return_if_fail (requisition != NULL);
requisition->width = 17;
requisition->height = 17;
}
static gboolean
_button_expose (GtkWidget *widget, GdkEventExpose *event)
{
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (DTGTK_IS_BUTTON(widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
GtkStyle *style=gtk_widget_get_style(widget);
int state = gtk_widget_get_state(widget);
/* update paint flags depending of states */
int flags = DTGTK_BUTTON (widget)->icon_flags;
/* set inner border */
int border = (flags&CPF_DO_NOT_USE_BORDER)?2:4;
/* prelight */
if (state == GTK_STATE_PRELIGHT)
flags |= CPF_PRELIGHT;
else
flags &=~CPF_PRELIGHT;
/* create pango text settings if label exists */
PangoLayout *layout=NULL;
int pw=0,ph=0;
const gchar *text=gtk_button_get_label (GTK_BUTTON (widget));
if (text)
{
layout = gtk_widget_create_pango_layout (widget,NULL);
pango_layout_set_font_description (layout,style->font_desc);
pango_layout_set_text (layout,text,-1);
pango_layout_get_pixel_size (layout,&pw,&ph);
}
/* begin cairo drawing */
cairo_t *cr;
cr = gdk_cairo_create (gtk_widget_get_window(widget));
GtkAllocation allocation;
gtk_widget_get_allocation(widget, &allocation);
int x = allocation.x;
int y = allocation.y;
int width = allocation.width;
int height = allocation.height;
/* draw standard button background if not transparent */
if( (flags & CPF_STYLE_FLAT ))
{
if( state != GTK_STATE_NORMAL )
{
cairo_rectangle (cr,x,y,width,height);
cairo_set_source_rgba (cr,
style->bg[state].red/65535.0,
style->bg[state].green/65535.0,
style->bg[state].blue/65535.0,
0.5);
cairo_fill (cr);
}
}
else if( !(flags & CPF_BG_TRANSPARENT) )
{
/* draw default boxed button */
gtk_paint_box (gtk_widget_get_style(widget), gtk_widget_get_window(widget),
gtk_widget_get_state(widget),
GTK_SHADOW_OUT, NULL, widget, "button",
x, y, width, height);
}
if (flags & CPF_IGNORE_FG_STATE)
state = GTK_STATE_NORMAL;
cairo_set_source_rgb (cr,
style->fg[state].red/65535.0,
style->fg[state].green/65535.0,
style->fg[state].blue/65535.0);
/* draw icon */
if (DTGTK_BUTTON (widget)->icon)
{
if (text)
DTGTK_BUTTON (widget)->icon (cr,x+border,y+border,height-(border*2),height-(border*2),flags);
else
DTGTK_BUTTON (widget)->icon (cr,x+border,y+border,width-(border*2),height-(border*2),flags);
}
cairo_destroy (cr);
/* draw label */
if (text)
{
int lx=x+2, ly=y+((height/2.0)-(ph/2.0));
if (DTGTK_BUTTON (widget)->icon) lx += width;
GdkRectangle t= {x,y,x+width,y+height};
gtk_paint_layout(style,gtk_widget_get_window(widget), GTK_STATE_NORMAL,TRUE,&t,widget,"label",lx,ly,layout);
}
return FALSE;
}
static gboolean _button_draw(GtkWidget *widget, cairo_t *cr)
{
g_return_val_if_fail(widget != NULL, FALSE);
g_return_val_if_fail(DTGTK_IS_BUTTON(widget), FALSE);
GtkStateFlags state = gtk_widget_get_state_flags(widget);
GdkRGBA bg_color, fg_color;
GtkStyleContext *context = gtk_widget_get_style_context(widget);
gtk_style_context_get_background_color(context, state, &bg_color);
gtk_style_context_get_color(context, state, &fg_color);
/* update paint flags depending of states */
int flags = DTGTK_BUTTON(widget)->icon_flags;
/* set inner border */
int border = DT_PIXEL_APPLY_DPI((flags & CPF_DO_NOT_USE_BORDER) ? 2 : 6);
/* prelight */
if(state & GTK_STATE_FLAG_PRELIGHT)
flags |= CPF_PRELIGHT;
else
flags &= ~CPF_PRELIGHT;
/* create pango text settings if label exists */
PangoLayout *layout = NULL;
int pw = 0, ph = 0;
const gchar *text = gtk_button_get_label(GTK_BUTTON(widget));
if(text)
{
layout = gtk_widget_create_pango_layout(widget, NULL);
pango_layout_set_font_description(layout, darktable.bauhaus->pango_font_desc);
pango_cairo_context_set_resolution(pango_layout_get_context(layout), darktable.gui->dpi);
pango_layout_set_text(layout, text, -1);
pango_layout_get_pixel_size(layout, &pw, &ph);
}
/* begin cairo drawing */
GtkAllocation allocation;
gtk_widget_get_allocation(widget, &allocation);
int width = allocation.width;
int height = allocation.height;
/* draw standard button background if not transparent */
if((flags & CPF_STYLE_FLAT))
{
if(flags & CPF_PRELIGHT)
{
cairo_rectangle(cr, 0, 0, width, height);
gdk_cairo_set_source_rgba(cr, &bg_color);
cairo_fill(cr);
}
}
else if(!(flags & CPF_BG_TRANSPARENT))
{
/* draw default boxed button */
gtk_render_background(context, cr, 0, 0, width, height);
if(!(flags & CPF_DO_NOT_USE_BORDER))
gtk_render_frame(context, cr, 0, 0, width, height);
}
gdk_cairo_set_source_rgba(cr, &fg_color);
/* draw icon */
if(DTGTK_BUTTON(widget)->icon)
{
int icon_width = text ? height - (border * 2) : width - (border * 2);
int icon_height = height - (border * 2);
if(icon_width > 0 && icon_height > 0)
{
if(text)
DTGTK_BUTTON(widget)
->icon(cr, border, border, height - (border * 2), height - (border * 2), flags);
else
DTGTK_BUTTON(widget)
->icon(cr, border, border, width - (border * 2), height - (border * 2), flags);
}
}
/* draw label */
if(text)
{
int lx = DT_PIXEL_APPLY_DPI(2), ly = ((height / 2.0) - (ph / 2.0));
if(DTGTK_BUTTON(widget)->icon) lx += width;
cairo_move_to(cr, lx, ly);
cairo_set_source_rgba(cr, 1.0, 1.0, 1.0, 0.5);
pango_cairo_show_layout(cr, layout);
g_object_unref(layout);
}
return FALSE;
}
