HippoCanvasStyle *
hippo_canvas_context_get_style (HippoCanvasContext *context)
{
g_return_val_if_fail(HIPPO_IS_CANVAS_CONTEXT(context), NULL);
return HIPPO_CANVAS_CONTEXT_GET_IFACE(context)->get_style(context);
}
HippoAnimationManager *
hippo_canvas_context_get_animation_manager (HippoCanvasContext *context)
{
g_return_val_if_fail(HIPPO_IS_CANVAS_CONTEXT(context), NULL);
return HIPPO_CANVAS_CONTEXT_GET_IFACE(context)->get_animation_manager(context);
}
PangoFontDescription *
hippo_canvas_context_get_font (HippoCanvasContext *context)
{
g_return_val_if_fail(HIPPO_IS_CANVAS_CONTEXT(context), NULL);
return HIPPO_CANVAS_CONTEXT_GET_IFACE(context)->get_font(context);
}
HippoCanvas::HippoCanvas()
: canvasWidthReq_(0), canvasHeightReq_(0), canvasX_(0), canvasY_(0), hscrollNeeded_(false), vscrollNeeded_(false),
hscrollbarPolicy_(HIPPO_SCROLLBAR_NEVER), vscrollbarPolicy_(HIPPO_SCROLLBAR_NEVER),
containsMouse_(false), pointer_(HIPPO_CANVAS_POINTER_UNSET), lastMoveX_(-1), lastMoveY_(-1)
{
HippoCanvasContextWin *context;
setClassName(L"HippoCanvasClass");
setClassStyle(CS_HREDRAW | CS_VREDRAW);
setTitle(L"Canvas");
context = hippo_canvas_context_win_new(this);
context_ = context;
g_object_unref((void*) context); // lose the extra reference
g_assert(HIPPO_IS_CANVAS_CONTEXT(context_));
hscroll_ = new HippoScrollbar();
hscroll_->Release(); // lose extra ref
hscroll_->setOrientation(HIPPO_ORIENTATION_HORIZONTAL);
vscroll_ = new HippoScrollbar();
vscroll_->Release();
hscroll_->setParent(this);
vscroll_->setParent(this);
tooltip_ = new HippoToolTip();
tooltip_->Release();
}
PangoLayout*
hippo_canvas_context_create_layout(HippoCanvasContext *context)
{
g_return_val_if_fail(HIPPO_IS_CANVAS_CONTEXT(context), NULL);
return HIPPO_CANVAS_CONTEXT_GET_IFACE(context)->create_layout(context);
}
double
hippo_canvas_context_get_resolution (HippoCanvasContext *context)
{
g_return_val_if_fail(HIPPO_IS_CANVAS_CONTEXT(context), 96.);
return HIPPO_CANVAS_CONTEXT_GET_IFACE(context)->get_resolution(context);
}
cairo_surface_t*
hippo_canvas_context_load_image(HippoCanvasContext *context,
const char *image_name)
{
g_return_val_if_fail(HIPPO_IS_CANVAS_CONTEXT(context), NULL);
return HIPPO_CANVAS_CONTEXT_GET_IFACE(context)->load_image(context, image_name);
}
guint32
hippo_canvas_context_get_color(HippoCanvasContext *context,
HippoStockColor color)
{
g_return_val_if_fail(HIPPO_IS_CANVAS_CONTEXT(context), 0);
return HIPPO_CANVAS_CONTEXT_GET_IFACE(context)->get_color(context, color);
}
void
hippo_canvas_context_unregister_widget_item (HippoCanvasContext *context,
HippoCanvasItem *item)
{
g_return_if_fail(HIPPO_IS_CANVAS_CONTEXT(context));
g_return_if_fail(HIPPO_IS_CANVAS_ITEM(item));
HIPPO_CANVAS_CONTEXT_GET_IFACE(context)->unregister_widget_item(context, item);
}
cairo_surface_t*
hippo_canvas_context_create_surface(HippoCanvasContext *context,
cairo_content_t content,
int width,
int height)
{
g_return_val_if_fail(HIPPO_IS_CANVAS_CONTEXT(context), NULL);
return HIPPO_CANVAS_CONTEXT_GET_IFACE(context)->create_surface(context, content, width, height);
}
static void
hippo_canvas_context_win_unregister_widget_item (HippoCanvasContext *context,
HippoCanvasItem *item)
{
HippoCanvasContextWin *canvas_win = HIPPO_CANVAS_CONTEXT_WIN(context);
g_return_if_fail(HIPPO_IS_CANVAS_CONTEXT(context));
remove_control_item(canvas_win, item);
}
void
hippo_canvas_context_translate_to_widget(HippoCanvasContext *context,
HippoCanvasItem *item,
int *x_p,
int *y_p)
{
g_return_if_fail(HIPPO_IS_CANVAS_CONTEXT(context));
g_return_if_fail(HIPPO_IS_CANVAS_ITEM(item));
HIPPO_CANVAS_CONTEXT_GET_IFACE(context)->translate_to_widget(context, item, x_p, y_p);
}
static cairo_surface_t*
hippo_canvas_context_win_load_image(HippoCanvasContext *context,
const char *image_name)
{
/* HippoCanvasContextWin *canvas_win = HIPPO_CANVAS_CONTEXT_WIN(context); */
g_return_val_if_fail(HIPPO_IS_CANVAS_CONTEXT(context), NULL);
cairo_surface_t *surface = hippo_image_factory_get(image_name);
if (surface)
cairo_surface_reference(surface);
return surface;
}
void
hippo_canvas_context_affect_font_desc(HippoCanvasContext *context,
PangoFontDescription *font_desc)
{
HippoCanvasContextIface *iface;
g_return_if_fail(HIPPO_IS_CANVAS_CONTEXT(context));
iface = HIPPO_CANVAS_CONTEXT_GET_IFACE(context);
if (iface->affect_font_desc)
(* iface->affect_font_desc) (context, font_desc);
}
void
hippo_canvas_context_affect_color(HippoCanvasContext *context,
guint32 *color_rgba_p)
{
HippoCanvasContextIface *iface;
g_return_if_fail(HIPPO_IS_CANVAS_CONTEXT(context));
iface = HIPPO_CANVAS_CONTEXT_GET_IFACE(context);
if (iface->affect_color)
(* iface->affect_color) (context, color_rgba_p);
}
static HippoCanvasContextWin*
hippo_canvas_context_win_new(HippoCanvas *canvas)
{
HippoCanvasContextWin *context_win;
context_win = HIPPO_CANVAS_CONTEXT_WIN(g_object_new(HIPPO_TYPE_CANVAS_CONTEXT_WIN, NULL));
g_assert(HIPPO_IS_CANVAS_CONTEXT(context_win));
// don't ref it, since it owns us, it would create a cycle
context_win->canvas = canvas;
return context_win;
}
static PangoLayout*
hippo_canvas_context_win_create_layout(HippoCanvasContext *context)
{
HippoCanvasContextWin *canvas_win;
PangoLayout *layout;
g_return_val_if_fail(HIPPO_IS_CANVAS_CONTEXT(context), NULL);
canvas_win = HIPPO_CANVAS_CONTEXT_WIN(context);
layout = pango_layout_new(canvas_win->pango);
return layout;
}
void
HippoCanvas::createChildren()
{
hscroll_->create();
vscroll_->create();
tooltip_->setForWindow(window_);
tooltip_->create();
// this should register any embedded controls, set their parents,
// which as a side effect should create them all
if (root_ != (HippoCanvasItem*) NULL) {
g_assert(HIPPO_IS_CANVAS_CONTEXT(context_));
hippo_canvas_item_set_context(root_, HIPPO_CANVAS_CONTEXT(context_));
}
}
static guint32
hippo_canvas_context_win_get_color(HippoCanvasContext *context,
HippoStockColor color)
{
HippoCanvasContextWin *canvas_win = HIPPO_CANVAS_CONTEXT_WIN(context);
g_return_val_if_fail(HIPPO_IS_CANVAS_CONTEXT(context), 0);
switch (color) {
case HIPPO_STOCK_COLOR_BG_NORMAL:
// FIXME use real system color - GetThemeColor?
return 0x777777ff;
case HIPPO_STOCK_COLOR_BG_PRELIGHT:
// FIXME use real system color
return 0x999999ff;
}
g_warning("unknown stock color %d", color);
return 0;
}
static void
hippo_canvas_context_win_translate_to_widget(HippoCanvasContext *context,
HippoCanvasItem *item,
int *x_p,
int *y_p)
{
HippoCanvasContextWin *canvas_win;
g_return_if_fail(HIPPO_IS_CANVAS_CONTEXT(context));
canvas_win = HIPPO_CANVAS_CONTEXT_WIN(context);
/* convert coords of root canvas item to coords of
* the HWND
*/
int cx, cy;
canvas_win->canvas->getCanvasOrigin(&cx, &cy);
if (x_p)
*x_p += cx;
if (y_p)
*y_p += cy;
}
void
HippoCanvas::setRoot(HippoCanvasItem *item)
{
if (root_ == item)
return;
rootRequestChanged_.disconnect();
rootPaintNeeded_.disconnect();
root_ = item;
if (item) {
rootRequestChanged_.connect(G_OBJECT(item), "request-changed",
slot(this, &HippoCanvas::onRootRequestChanged));
rootPaintNeeded_.connect(G_OBJECT(item), "paint-needed",
slot(this, &HippoCanvas::onRootPaintNeeded));
rootTooltipChanged_.connect(G_OBJECT(item), "tooltip-changed",
slot(this, &HippoCanvas::onRootTooltipChanged));
if (isCreated()) {
g_assert(HIPPO_IS_CANVAS_CONTEXT(context_));
hippo_canvas_item_set_context(item, HIPPO_CANVAS_CONTEXT(context_));
}
}
markRequestChanged();
}