static void
gd_two_lines_renderer_prepare_layouts (GdTwoLinesRenderer *self,
const GdkRectangle *cell_area,
GtkWidget *widget,
PangoLayout **layout_one,
PangoLayout **layout_two)
{
PangoLayout *line_one;
PangoLayout *line_two = NULL;
gchar *text = NULL;
g_object_get (self,
"text", &text,
NULL);
line_one = create_layout_with_attrs (widget, cell_area,
self, PANGO_ELLIPSIZE_MIDDLE);
if (self->priv->line_two == NULL ||
g_strcmp0 (self->priv->line_two, "") == 0)
{
pango_layout_set_height (line_one, - (self->priv->text_lines));
if (text != NULL)
pango_layout_set_text (line_one, text, -1);
}
else
{
GtkStyleContext *context;
line_two = create_layout_with_attrs (widget, cell_area,
self, PANGO_ELLIPSIZE_END);
context = gtk_widget_get_style_context (widget);
gtk_style_context_save (context);
apply_subtitle_style_to_layout (context, line_two, GTK_STATE_FLAG_NORMAL);
gtk_style_context_restore (context);
pango_layout_set_height (line_one, - (self->priv->text_lines - 1));
pango_layout_set_height (line_two, -1);
pango_layout_set_text (line_two, self->priv->line_two, -1);
if (text != NULL)
pango_layout_set_text (line_one, text, -1);
}
if (layout_one)
*layout_one = line_one;
if (layout_two)
*layout_two = line_two;
g_free (text);
}
TextAsset::Size
TextAsset::computeSizeOfText(cairo_t* cairoContext,
const std::string textString,
int bounds,
PangoFontDescription* font,
Rect* tight,
float* lineHeightOut)
{
PangoLayout* layout = pango_cairo_create_layout(cairoContext);
// Kerning
PangoAttrList* attr_list = pango_attr_list_new();
PangoAttribute* spacing_attr = pango_attr_letter_spacing_new(pango_units_from_double(_kern));
pango_attr_list_insert(attr_list, spacing_attr);
pango_layout_set_attributes(layout, attr_list);
pango_cairo_context_set_resolution(pango_layout_get_context(layout), DISPLAY_RESOLUTION);
pango_layout_set_text(layout, textString.c_str(), (int)textString.length());
pango_layout_set_alignment(layout, _alignment);
pango_layout_set_wrap(layout, PANGO_WRAP_WORD_CHAR);
const Size maxTextureSize(bounds, 1024);
pango_layout_set_width(layout, pango_units_from_double(maxTextureSize.width));
pango_layout_set_height(layout, pango_units_from_double(maxTextureSize.height));
pango_layout_set_font_description(layout, font);
applyLeading(cairoContext, layout, font);
PangoRectangle estimateSize;
PangoRectangle ink;
pango_layout_get_pixel_extents(layout, &ink, &estimateSize);
// If the text is right or center aligned the offsets will contain all the
// leading space. We ignore that for the size because drawText will draw
// in the larger box. The tight box below will get the offsets so we know
// where to draw so the text lands in the same tight box.
Size res(estimateSize.width, estimateSize.height);
if (tight != NULL) {
float lineHeight;
float xHeight = charHeight(cairoContext, font, 'x', &lineHeight);
if (lineHeightOut != NULL) {
*lineHeightOut = lineHeight;
}
const float capHeight = charHeight(cairoContext, font, 'Y');
const float ascender = pango_units_to_double(pango_layout_get_baseline(layout));
const float topSpace = ascender - capHeight;
const float bottomSpace = MAX(lineHeight - ascender - (capHeight - xHeight), 0);
if (res.height > topSpace + bottomSpace) {
*tight = Rect(estimateSize.x,
estimateSize.y + topSpace,
res.width,
res.height - topSpace - bottomSpace);
} else {
*tight = Rect(0, 0, res.width, res.height);
}
}
g_object_unref(layout);
return res;
}
void tooltip_update()
{
if (!g_tooltip.tooltip_text) {
tooltip_hide(0);
return;
}
tooltip_update_geometry();
if (just_shown) {
if (!panel_horizontal)
y -= height / 2; // center vertically
just_shown = FALSE;
}
tooltip_adjust_geometry();
XMoveResizeWindow(server.display, g_tooltip.window, x, y, width, height);
// Stuff for drawing the tooltip
cairo_surface_t *cs = cairo_xlib_surface_create(server.display, g_tooltip.window, server.visual, width, height);
cairo_t *c = cairo_create(cs);
Color bc = g_tooltip.bg->fill_color;
Border b = g_tooltip.bg->border;
if (server.real_transparency) {
clear_pixmap(g_tooltip.window, 0, 0, width, height);
draw_rect(c, b.width, b.width, width - 2 * b.width, height - 2 * b.width, b.radius - b.width / 1.571);
cairo_set_source_rgba(c, bc.rgb[0], bc.rgb[1], bc.rgb[2], bc.alpha);
} else {
cairo_rectangle(c, 0., 0, width, height);
cairo_set_source_rgb(c, bc.rgb[0], bc.rgb[1], bc.rgb[2]);
}
cairo_fill(c);
cairo_set_line_width(c, b.width);
if (server.real_transparency)
draw_rect(c, b.width / 2.0, b.width / 2.0, width - b.width, height - b.width, b.radius);
else
cairo_rectangle(c, b.width / 2.0, b.width / 2.0, width - b.width, height - b.width);
cairo_set_source_rgba(c, b.color.rgb[0], b.color.rgb[1], b.color.rgb[2], b.color.alpha);
cairo_stroke(c);
Color fc = g_tooltip.font_color;
cairo_set_source_rgba(c, fc.rgb[0], fc.rgb[1], fc.rgb[2], fc.alpha);
PangoLayout *layout = pango_cairo_create_layout(c);
pango_layout_set_font_description(layout, g_tooltip.font_desc);
pango_layout_set_wrap(layout, PANGO_WRAP_WORD);
pango_layout_set_text(layout, g_tooltip.tooltip_text, -1);
PangoRectangle r1, r2;
pango_layout_get_pixel_extents(layout, &r1, &r2);
pango_layout_set_width(layout, width * PANGO_SCALE);
pango_layout_set_height(layout, height * PANGO_SCALE);
pango_layout_set_ellipsize(layout, PANGO_ELLIPSIZE_END);
// I do not know why this is the right way, but with the below cairo_move_to it seems to be centered (horiz. and
// vert.)
cairo_move_to(c,
-r1.x / 2 + g_tooltip.bg->border.width + g_tooltip.paddingx,
-r1.y / 2 + 1 + g_tooltip.bg->border.width + g_tooltip.paddingy);
pango_cairo_show_layout(c, layout);
g_object_unref(layout);
cairo_destroy(c);
cairo_surface_destroy(cs);
}
struct TEXT_WIDGET_HANDLE text_widget_init ( float x_mm, float y_mm,
float width_mm,
float height_mm,
float dpmm_x,
float dpmm_y )
{
struct TEXT_WIDGET_HANDLE handle;
handle.d = malloc( sizeof( struct TEXT_WIDGET_PRIVATE ) );
handle.d->x_mm = x_mm;
handle.d->y_mm = y_mm;
handle.d->dpmm_x = dpmm_x;
handle.d->dpmm_y = dpmm_y;
handle.d->font_map = pango_ft2_font_map_new();
// Note: FreeType works in DPI.
pango_ft2_font_map_set_resolution( (PangoFT2FontMap*)handle.d->font_map,
dpmm_x * 25.4, dpmm_y * 25.4 );
handle.d->context = pango_font_map_create_context( handle.d->font_map );
handle.d->layout = pango_layout_new( handle.d->context );
// Pango works in Pango Units. Not exactly clear how the resolution of
// the font and the size of the rendering box fit together.
int width = pango_units_from_double( dpmm_x * width_mm );
int height = pango_units_from_double( dpmm_y * height_mm );
pango_layout_set_width( handle.d->layout, width );
pango_layout_set_height( handle.d->layout, height );
handle.d->foreground = vgCreatePaint();
vgSetParameterfv( handle.d->foreground, VG_PAINT_COLOR, 4, DEFAULT_FOREGROUND );
return handle;
}
static void
gd_two_lines_renderer_prepare_layouts (GdTwoLinesRenderer *self,
GtkWidget *widget,
PangoLayout **layout_one,
PangoLayout **layout_two)
{
PangoLayout *line_one;
PangoLayout *line_two = NULL;
gchar *text = NULL;
g_object_get (self,
"text", &text,
NULL);
line_one = create_layout_with_attrs (widget, self, PANGO_ELLIPSIZE_MIDDLE);
if (self->priv->line_two == NULL ||
g_strcmp0 (self->priv->line_two, "") == 0)
{
pango_layout_set_height (line_one, - (self->priv->text_lines));
if (text != NULL)
pango_layout_set_text (line_one, text, -1);
}
else
{
line_two = create_layout_with_attrs (widget, self, PANGO_ELLIPSIZE_END);
pango_layout_set_height (line_one, - (self->priv->text_lines - 1));
pango_layout_set_height (line_two, -1);
pango_layout_set_text (line_two, self->priv->line_two, -1);
if (text != NULL)
pango_layout_set_text (line_one, text, -1);
}
if (layout_one)
*layout_one = line_one;
if (layout_two)
*layout_two = line_two;
g_free (text);
}
static void
gnm_so_path_draw_cairo (SheetObject const *so, cairo_t *cr,
double width, double height)
{
GnmSOPath *sop = GNM_SO_PATH (so);
GOStyle const *style = sop->style;
cairo_new_path (cr);
cairo_save (cr);
cairo_move_to (cr, -sop->x_offset, -sop->y_offset);
cairo_scale (cr, width / sop->width, height / sop->height);
go_path_to_cairo (sop->path, GO_PATH_DIRECTION_FORWARD, cr);
cairo_restore (cr);
/* Fill the shape */
cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); /* might be an option */
go_style_fill (style, cr, TRUE);
/* Draw the line */
if (go_style_set_cairo_line (style, cr))
cairo_stroke (cr);
else
cairo_new_path (cr);
/* Draw the text. */
if (sop->text != NULL && *(sop->text) != '\0') {
PangoLayout *pl = pango_cairo_create_layout (cr);
double const scale_h = 72. / gnm_app_display_dpi_get (TRUE);
double const scale_v = 72. / gnm_app_display_dpi_get (FALSE);
double pl_height = (height - sop->margin_pts.top
- sop->margin_pts.bottom) * PANGO_SCALE
/ scale_v;
double pl_width = (width - sop->margin_pts.left
- sop->margin_pts.right) * PANGO_SCALE
/ scale_h;
/* set a font, a very bad solution, but will do until we move to GOString */
PangoFontDescription *desc = pango_font_description_from_string ("Sans 10");
PangoRectangle r;
pango_layout_set_font_description (pl, desc);
pango_layout_set_text (pl, sop->text, -1);
pango_layout_set_attributes (pl, sop->markup);
pango_layout_set_width (pl, pl_width);
pango_layout_set_height (pl, pl_height);
cairo_save (cr);
pango_layout_get_extents (pl, NULL, &r);
cairo_move_to (cr,
(width - r.width / PANGO_SCALE * scale_h) / 2.,
(height - r.height / PANGO_SCALE * scale_v) / 2.);
cairo_scale (cr, scale_h, scale_v);
cairo_set_source_rgba (cr, GO_COLOR_TO_CAIRO (style->font.color));
pango_cairo_show_layout (cr, pl);
cairo_new_path (cr);
cairo_restore (cr);
g_object_unref (pl);
}
}
static PyObject *
_pango_layout_set_width_height(PyObject *self, PyObject *args)
{
PangoLayout *layout;
int width, height;
if (!PyArg_ParseTuple(args, "lii", &layout, &width, &height))
return NULL;
pango_layout_set_width(layout, pango_units_from_double(width));
pango_layout_set_height(layout, pango_units_from_double(height));
Py_RETURN_NONE;
}
void
TextAsset::drawText(cairo_t* cairoContext,
const std::string& textString,
const Rect& rect,
PangoFontDescription* inFontDescription,
bool outlineEnabled)
{
cairo_move_to(cairoContext, rect.x, rect.y);
PangoLayout* layout = pango_cairo_create_layout(cairoContext);
// Kerning
PangoAttrList* attr_list = pango_attr_list_new();
PangoAttribute* spacing_attr = pango_attr_letter_spacing_new(pango_units_from_double(_kern));
pango_attr_list_insert(attr_list, spacing_attr);
pango_layout_set_attributes(layout, attr_list);
pango_cairo_context_set_resolution(pango_layout_get_context(layout), DISPLAY_RESOLUTION);
pango_layout_set_text(layout, textString.c_str(), textString.length());
pango_layout_set_font_description(layout, inFontDescription);
pango_layout_set_wrap(layout, PANGO_WRAP_WORD_CHAR);
pango_layout_set_width(layout, pango_units_from_double(rect.size.width + WIDTH_PADDING));
pango_layout_set_height(layout, pango_units_from_double(rect.size.height + HEIGHT_PADDING));
pango_layout_set_alignment(layout, _alignment);
applyLeading(cairoContext, layout, inFontDescription);
pango_cairo_show_layout(cairoContext, layout);
// Core Text defines positive outline width values as stroke only
if (_outlineThickness <= 0.0f) {
cairo_fill_preserve(cairoContext);
}
// Outline
if (outlineEnabled && _outlineThickness != 0.0f) {
const float outlineThickness = (fabsf(_outlineThickness) / 100.0f) * _fontSize * CLIENT_TO_SERVER_SCALE;
cairo_set_source_rgba(cairoContext,
_outlineColor.red,
_outlineColor.green,
_outlineColor.blue,
_outlineColor.alpha);
pango_cairo_layout_path(cairoContext, layout);
cairo_set_line_width(cairoContext, outlineThickness);
cairo_stroke(cairoContext);
} else {
cairo_new_path(cairoContext);
}
g_object_unref(layout);
}
static void _draw_page_results (GtkPrintContext *context, GwPageInfo *page, GwPrintData *data)
{
//Declarations
GtkTextView *view;
GtkTextBuffer *buffer;
PangoLayout *layout;
char *text;
PangoFontDescription *desc;
int width;
int height;
gdouble drawable_width, drawable_height;
cairo_t *cr;
gint line_start;
gint line_end;
//Initializations
view = gw_searchwindow_get_current_textview (data->window);
buffer = gtk_text_view_get_buffer (view);
text = gtk_text_buffer_get_text (buffer, &(page->start), &(page->end), FALSE);
layout = gtk_print_context_create_pango_layout (context);
desc = pango_font_description_from_string ("sans 10");
drawable_width = gtk_print_context_get_width (context);
drawable_height = gtk_print_context_get_height (context);
cr = gtk_print_context_get_cairo_context (context);
line_start = 0;
line_end = 0;
//Draw
if (text != NULL)
{
cairo_move_to (cr, 5, 10);
pango_layout_set_font_description (layout, desc);
pango_layout_set_markup (layout, text, -1);
pango_layout_set_width (layout, drawable_width * PANGO_SCALE);
pango_layout_set_alignment (layout, PANGO_ALIGN_LEFT);
pango_layout_set_height (layout, drawable_height * PANGO_SCALE);
pango_layout_get_size (layout, &width, &height);
pango_cairo_show_layout (cr, layout);
//Adjust the end GtkTextIter to the cutoff in the visible cairo context
line_start = gtk_text_iter_get_line (&page->start);
line_end = line_start + pango_layout_get_line_count (layout) - 1;
gtk_text_buffer_get_iter_at_line (buffer, &(page->end), line_end);
}
//Cleanup
if (text != NULL) g_free (text);
if (layout != NULL) g_object_unref (layout);
if (desc != NULL) pango_font_description_free (desc);
}
static PangoLayout *
make_new_page (PangoContext * context, PangoFontDescription * desc,
gdouble height, gdouble width)
{
PangoLayout *layout;
layout = pango_layout_new (context);
pango_layout_set_justify (layout, TRUE);
pango_layout_set_spacing (layout, 1.5 * PANGO_SCALE);
pango_layout_set_width (layout, pango_units_from_double(width - SIDE_MARGIN));
pango_layout_set_height (layout, pango_units_from_double(height - EDGE_MARGIN));
pango_layout_set_wrap (layout, PANGO_WRAP_WORD_CHAR);
pango_layout_set_font_description (layout, desc);
return layout;
}
ttext& ttext::set_maximum_height(int height, bool multiline)
{
if(height <= 0) {
height = -1;
multiline = false;
}
if(height != maximum_height_) {
assert(context_);
pango_layout_set_height(layout_, !multiline ? -1 : height * PANGO_SCALE);
maximum_height_ = height;
calculation_dirty_ = true;
surface_dirty_ = true;
}
return *this;
}
void draw_task (void *obj, cairo_t *c)
{
Task *tsk = obj;
tsk->state_pix[tsk->current_state] = tsk->area.pixmap;
PangoLayout *layout;
int width=0, height;
Panel *panel = (Panel*)tsk->area.panel;
//printf("draw_task %d %d\n", tsk->area.posx, tsk->area.posy);
if (panel->g_task.text) {
/* Layout */
layout = pango_cairo_create_layout (c);
pango_layout_set_font_description (layout, panel->g_task.font_desc);
pango_layout_set_text(layout, tsk->title, -1);
/* Drawing width and Cut text */
// pango use U+22EF or U+2026
pango_layout_set_width(layout, ((Taskbar*)tsk->area.parent)->text_width * PANGO_SCALE);
pango_layout_set_height(layout, panel->g_task.text_height * PANGO_SCALE);
pango_layout_set_wrap(layout, PANGO_WRAP_CHAR);
pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_END);
/* Center text */
if (panel->g_task.centered) pango_layout_set_alignment (layout, PANGO_ALIGN_CENTER);
else pango_layout_set_alignment (layout, PANGO_ALIGN_LEFT);
pango_layout_get_pixel_size (layout, &width, &height);
color_rgba_t text_color = panel->g_task.font_colors[tsk->current_state];
double text_posy = (panel->g_task.area.bounds.height - height) / 2.0;
draw_text (layout, c, panel->g_task.text_posx, text_posy, &text_color, panel->font_shadow);
g_object_unref (layout);
}
if (panel->g_task.icon) {
draw_task_icon (tsk, width);
}
}
static gboolean
configure_text_layout(GtkExperimentTranscript *trans,
ExperimentReaderContrib *contrib,
gint64 current_time,
gint y, gint last_contrib_y,
int *logical_height)
{
PangoAttrList *attrib_list;
if (contrib->start_time > current_time)
return FALSE;
attrib_list = pango_attr_list_new();
for (GSList *cur = trans->priv->formats; cur != NULL; cur = cur->next) {
GtkExperimentTranscriptFormat *fmt =
(GtkExperimentTranscriptFormat *)cur->data;
gtk_experiment_transcript_apply_format(fmt, contrib->text,
attrib_list);
}
gtk_experiment_transcript_apply_format(&trans->priv->interactive_format,
contrib->text, attrib_list);
pango_layout_set_attributes(trans->priv->layer_text_layout,
attrib_list);
pango_attr_list_unref(attrib_list);
pango_layout_set_text(trans->priv->layer_text_layout,
contrib->text, -1);
pango_layout_set_height(trans->priv->layer_text_layout,
last_contrib_y == -1
? G_MAXINT
: ABS(last_contrib_y - y)*PANGO_SCALE);
pango_layout_get_pixel_size(trans->priv->layer_text_layout,
NULL, logical_height);
return TRUE;
}
ttext& ttext::set_maximum_height(int height, bool multiline)
{
if(height <= 0) {
height = -1;
multiline = false;
}
if(height != maximum_height_) {
assert(context_);
/**
* @todo See whether we can make pango 1.20 mandatory before Wesnoth 1.6 is
* released.
*/
#if PANGO_VERSION_CHECK(1,20,0)
pango_layout_set_height(layout_, !multiline ? -1 : height * PANGO_SCALE);
#endif
maximum_height_ = height;
calculation_dirty_ = true;
surface_dirty_ = true;
}
return *this;
}
void pango_render_text(char* message)
{
cairo_surface_t *surface;
surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 640, 480);
cairo_t *context;
context = cairo_create(surface);
cairo_set_source_rgb(context, 1.0, 0.8, 0.4);
cairo_paint(context);
PangoLayout *layout;
layout = pango_cairo_create_layout(context);
pango_layout_set_text(layout, message, -1);
PangoFontDescription *desc;
desc = pango_font_description_from_string("Arial Bold 36");
pango_layout_set_font_description(layout, desc);
pango_font_description_free(desc);
pango_layout_set_width(layout, 600 * PANGO_SCALE);
pango_layout_set_height(layout, 400 * PANGO_SCALE);
pango_cairo_update_layout(context, layout);
//pango_render_text_simple(context, layout);
//pango_render_text_border(context, layout);
pango_render_text_shadow(context, layout);
cairo_status_t status = cairo_surface_write_to_png(surface, "pango-text-effects.png");
g_object_unref(layout);
cairo_destroy(context);
cairo_surface_destroy(surface);
}
static void
marlin_text_renderer_render (GtkCellRenderer *cell,
cairo_t *cr,
GtkWidget *widget,
const GdkRectangle *background_area,
const GdkRectangle *cell_area,
GtkCellRendererState flags)
{
MarlinTextRenderer *text_renderer = MARLIN_TEXT_RENDERER (cell);
GtkStyleContext *context;
GtkStateFlags state;
gint x0, x1, y0, y1;
gint text_width;
gint text_height;
gint x_offset;
gint y_offset;
gint xpad, ypad;
gfloat xalign, yalign;
gboolean selected;
/* setup the new widget */
marlin_text_renderer_set_widget (text_renderer, widget);
state = gtk_widget_get_state_flags (widget);
if ((flags & GTK_CELL_RENDERER_SELECTED) == GTK_CELL_RENDERER_SELECTED)
{
state |= GTK_STATE_FLAG_SELECTED;
}
else if ((flags & GTK_CELL_RENDERER_PRELIT) == GTK_CELL_RENDERER_PRELIT
&& gtk_widget_get_state (widget) == GTK_STATE_PRELIGHT)
{
state = GTK_STATE_PRELIGHT;
}
else
{
state = gtk_widget_get_sensitive (widget) ? GTK_STATE_FLAG_NORMAL : GTK_STATE_INSENSITIVE;
}
/* render small/normal text depending on the zoom_level */
if (text_renderer->zoom_level < MARLIN_ZOOM_LEVEL_NORMAL)
{
if (text_renderer->follow_prelit && (flags & GTK_CELL_RENDERER_PRELIT) != 0)
pango_layout_set_attributes (text_renderer->layout, eel_pango_attr_list_small_underline_single ());
else
pango_layout_set_attributes (text_renderer->layout, eel_pango_attr_list_small ());
} else {
if (text_renderer->follow_prelit && (flags & GTK_CELL_RENDERER_PRELIT) != 0)
pango_layout_set_attributes (text_renderer->layout, eel_pango_attr_list_underline_single ());
else
pango_layout_set_attributes (text_renderer->layout, NULL);
}
/* setup the wrapping */
if (text_renderer->wrap_width < 0)
{
pango_layout_set_width (text_renderer->layout, -1);
pango_layout_set_wrap (text_renderer->layout, PANGO_WRAP_CHAR);
}
else
{
pango_layout_set_width (text_renderer->layout, text_renderer->wrap_width * PANGO_SCALE);
pango_layout_set_wrap (text_renderer->layout, text_renderer->wrap_mode);
}
/* ellipsize to max lines except for selected or prelit items */
pango_layout_set_ellipsize (text_renderer->layout, PANGO_ELLIPSIZE_END);
pango_layout_set_height (text_renderer->layout, -3);
if ((flags & GTK_CELL_RENDERER_SELECTED) == GTK_CELL_RENDERER_SELECTED ||
(flags & GTK_CELL_RENDERER_PRELIT) == GTK_CELL_RENDERER_PRELIT) {
pango_layout_set_ellipsize (text_renderer->layout, PANGO_ELLIPSIZE_NONE);
}
gtk_cell_renderer_get_alignment (cell, &xalign, &yalign);
if (xalign == 0.5f)
pango_layout_set_alignment (text_renderer->layout, PANGO_ALIGN_CENTER);
pango_layout_set_text (text_renderer->layout, text_renderer->text, -1);
/* calculate the real text dimension */
pango_layout_get_pixel_size (text_renderer->layout, &text_width, &text_height);
/* take into account the state indicator (required for calculation) */
if (text_renderer->follow_state)
{
text_width += 2 * text_renderer->focus_width;
text_height += 2 * text_renderer->focus_width;
}
gtk_cell_renderer_get_padding (cell, &xpad, &ypad);
/* calculate the real x-offset */
x_offset = ((gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL) ? (1.0 - xalign) : xalign)
* (cell_area->width - text_width - (2 * xpad));
x_offset = MAX (x_offset, 0);
/* calculate the real y-offset */
y_offset = yalign * (cell_area->height - text_height - (2 * ypad));
y_offset = MAX (y_offset, 0);
context = gtk_widget_get_style_context (gtk_widget_get_parent (widget));
gtk_style_context_save (context);
gtk_style_context_set_state (context, state);
selected = ((flags & GTK_CELL_RENDERER_SELECTED) == GTK_CELL_RENDERER_SELECTED && text_renderer->follow_state);
/* render the state indicator */
if (selected || text_renderer->background != NULL)
{
/* calculate the text bounding box (including the focus padding/width) */
x0 = cell_area->x + x_offset;
y0 = cell_area->y + y_offset;
x1 = x0 + text_width;
y1 = y0 + text_height;
cairo_move_to (cr, x0 + 5, y0);
cairo_line_to (cr, x1 - 5, y0);
cairo_curve_to (cr, x1 - 5, y0, x1, y0, x1, y0 + 5);
cairo_line_to (cr, x1, y1 - 5);
cairo_curve_to (cr, x1, y1 - 5, x1, y1, x1 - 5, y1);
cairo_line_to (cr, x0 + 5, y1);
cairo_curve_to (cr, x0 + 5, y1, x0, y1, x0, y1 - 5);
cairo_line_to (cr, x0, y0 + 5);
cairo_curve_to (cr, x0, y0 + 5, x0, y0, x0 + 5, y0);
GdkRGBA color;
if(text_renderer->background != NULL && !selected)
{
if(!gdk_rgba_parse(&color, text_renderer->background))
{
g_critical("Can't parse this color value: %s", text_renderer->background);
gtk_style_context_get_background_color (context, state, &color);
}
}
else
{
gtk_style_context_get_background_color (context, state, &color);
}
gdk_cairo_set_source_rgba (cr, &color);
cairo_fill (cr);
}
/* draw the focus indicator */
if (text_renderer->follow_state && (flags & GTK_CELL_RENDERER_FOCUSED) != 0)
{
gtk_render_focus (context, cr, cell_area->x + x_offset, cell_area->y + y_offset, text_width, text_height);
}
/* get proper sizing for the layout drawing */
if (text_renderer->follow_state)
{
text_width -= 2 * text_renderer->focus_width;
text_height -= 2 * text_renderer->focus_width;
x_offset += text_renderer->focus_width;
y_offset += text_renderer->focus_width;
}
/* draw the text */
if (xalign == 0.5f)
x_offset = (cell_area->width - text_renderer->wrap_width)/2;
gtk_render_layout (context, cr,
cell_area->x + x_offset + xpad,
cell_area->y + y_offset + ypad,
text_renderer->layout);
gtk_style_context_restore (context);
}
static VALUE
rg_set_height(VALUE self, VALUE width)
{
pango_layout_set_height(_SELF(self), NUM2INT(width));
return self;
}
static void fm_cell_renderer_text_render(GtkCellRenderer *cell,
GdkDrawable *window,
GtkWidget *widget,
GdkRectangle *background_area,
GdkRectangle *cell_area,
GdkRectangle *expose_area,
GtkCellRendererState flags)
#endif
{
FmCellRendererText *self = FM_CELL_RENDERER_TEXT(cell);
#if GTK_CHECK_VERSION(3, 0, 0)
GtkStyleContext* style;
GtkStateFlags state;
#else
GtkStyle* style;
GtkStateType state;
#endif
gchar* text;
gint text_width;
gint text_height;
gint x_offset;
gint y_offset;
gint x_align_offset;
GdkRectangle rect;
PangoWrapMode wrap_mode;
gint wrap_width;
PangoAlignment alignment;
gfloat xalign, yalign;
gint xpad, ypad;
/* FIXME: this is time-consuming since it invokes pango_layout.
* if we want to fix this, we must implement the whole cell
* renderer ourselves instead of derived from GtkCellRendererText. */
PangoContext* context = gtk_widget_get_pango_context(widget);
PangoLayout* layout = pango_layout_new(context);
g_object_get(G_OBJECT(cell),
"wrap-mode" , &wrap_mode,
"wrap-width", &wrap_width,
"alignment" , &alignment,
"text", &text,
NULL);
pango_layout_set_alignment(layout, alignment);
/* Setup the wrapping. */
if (wrap_width < 0)
{
pango_layout_set_width(layout, -1);
pango_layout_set_wrap(layout, PANGO_WRAP_CHAR);
}
else
{
pango_layout_set_width(layout, wrap_width * PANGO_SCALE);
pango_layout_set_wrap(layout, wrap_mode);
if(self->height > 0)
{
/* FIXME: add custom ellipsize from object? */
pango_layout_set_ellipsize(layout, PANGO_ELLIPSIZE_END);
pango_layout_set_height(layout, self->height * PANGO_SCALE);
}
else
pango_layout_set_ellipsize(layout, PANGO_ELLIPSIZE_NONE);
}
pango_layout_set_text(layout, text, -1);
pango_layout_set_auto_dir(layout, TRUE);
pango_layout_get_pixel_size(layout, &text_width, &text_height);
gtk_cell_renderer_get_alignment(cell, &xalign, &yalign);
gtk_cell_renderer_get_padding(cell, &xpad, &ypad);
/* Calculate the real x and y offsets. */
x_offset = ((gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL) ? (1.0 - xalign) : xalign)
* (cell_area->width - text_width - (2 * xpad));
x_offset = MAX(x_offset, 0);
y_offset = yalign * (cell_area->height - text_height - (2 * ypad));
y_offset = MAX (y_offset, 0);
if(flags & (GTK_CELL_RENDERER_SELECTED|GTK_CELL_RENDERER_FOCUSED))
{
rect.x = cell_area->x + x_offset;
rect.y = cell_area->y + y_offset;
rect.width = text_width + (2 * xpad);
rect.height = text_height + (2 * ypad);
}
#if GTK_CHECK_VERSION(3, 0, 0)
style = gtk_widget_get_style_context(widget);
#else
style = gtk_widget_get_style(widget);
#endif
if(flags & GTK_CELL_RENDERER_SELECTED) /* item is selected */
{
#if GTK_CHECK_VERSION(3, 0, 0)
GdkRGBA clr;
if(flags & GTK_CELL_RENDERER_INSENSITIVE) /* insensitive */
state = GTK_STATE_FLAG_INSENSITIVE;
else
state = GTK_STATE_FLAG_SELECTED;
gtk_style_context_get_background_color(style, state, &clr);
gdk_cairo_rectangle(cr, &rect);
gdk_cairo_set_source_rgba(cr, &clr);
#else
cairo_t *cr = gdk_cairo_create (window);
GdkColor clr;
if(flags & GTK_CELL_RENDERER_INSENSITIVE) /* insensitive */
state = GTK_STATE_INSENSITIVE;
else
state = GTK_STATE_SELECTED;
clr = style->bg[state];
/* paint the background */
if(expose_area)
{
gdk_cairo_rectangle(cr, expose_area);
cairo_clip(cr);
}
gdk_cairo_rectangle(cr, &rect);
cairo_set_source_rgb(cr, clr.red / 65535., clr.green / 65535., clr.blue / 65535.);
#endif
cairo_fill (cr);
#if !GTK_CHECK_VERSION(3, 0, 0)
cairo_destroy (cr);
#endif
}
#if !GTK_CHECK_VERSION(3, 0, 0)
else
state = GTK_STATE_NORMAL;
#endif
x_align_offset = (alignment == PANGO_ALIGN_CENTER) ? (wrap_width - text_width) / 2 : 0;
#if GTK_CHECK_VERSION(3, 0, 0)
gtk_render_layout(style, cr,
cell_area->x + x_offset + xpad - x_align_offset,
cell_area->y + y_offset + ypad, layout);
#else
gtk_paint_layout(style, window, state, TRUE,
expose_area, widget, "cellrenderertext",
cell_area->x + x_offset + xpad - x_align_offset,
cell_area->y + y_offset + ypad, layout);
#endif
g_object_unref(layout);
if(G_UNLIKELY( flags & GTK_CELL_RENDERER_FOCUSED) ) /* focused */
{
#if GTK_CHECK_VERSION(3, 0, 0)
gtk_render_focus(style, cr, rect.x, rect.y, rect.width, rect.height);
#else
gtk_paint_focus(style, window, state, background_area,
widget, "cellrenderertext", rect.x, rect.y,
rect.width, rect.height);
#endif
}
if(flags & GTK_CELL_RENDERER_PRELIT) /* hovered */
g_object_set(G_OBJECT(widget), "tooltip-text", text, NULL);
else
g_object_set(G_OBJECT(widget), "tooltip-text", NULL, NULL);
g_free(text);
}
static Image *ReadCAPTIONImage(const ImageInfo *image_info,
ExceptionInfo *exception)
{
char
*caption,
*property;
const char
*option;
DrawInfo
*draw_info;
FT_Bitmap
*canvas;
Image
*image;
PangoAlignment
align;
PangoContext
*context;
PangoFontDescription
*description;
PangoFontMap
*fontmap;
PangoGravity
gravity;
PangoLayout
*layout;
PangoRectangle
extent;
PixelPacket
fill_color;
RectangleInfo
page;
register PixelPacket
*q;
register unsigned char
*p;
ssize_t
y;
/*
Initialize Image structure.
*/
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickSignature);
if (image_info->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
image_info->filename);
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickSignature);
image=AcquireImage(image_info);
(void) ResetImagePage(image,"0x0+0+0");
/*
Get context.
*/
fontmap=(PangoFontMap *) pango_ft2_font_map_new();
pango_ft2_font_map_set_resolution((PangoFT2FontMap *) fontmap,
image->x_resolution,image->y_resolution);
option=GetImageOption(image_info,"caption:hinting");
pango_ft2_font_map_set_default_substitute((PangoFT2FontMap *) fontmap,
PangoSubstitute,(char *) option,NULL);
context=pango_font_map_create_context(fontmap);
option=GetImageOption(image_info,"caption:language");
if (option != (const char *) NULL)
pango_context_set_language(context,pango_language_from_string(option));
draw_info=CloneDrawInfo(image_info,(DrawInfo *) NULL);
pango_context_set_base_dir(context,draw_info->direction ==
RightToLeftDirection ? PANGO_DIRECTION_RTL : PANGO_DIRECTION_LTR);
switch (draw_info->gravity)
{
case NorthGravity: gravity=PANGO_GRAVITY_NORTH; break;
case WestGravity: gravity=PANGO_GRAVITY_WEST; break;
case EastGravity: gravity=PANGO_GRAVITY_EAST; break;
case SouthGravity: gravity=PANGO_GRAVITY_SOUTH; break;
default: gravity=PANGO_GRAVITY_AUTO; break;
}
pango_context_set_base_gravity(context,gravity);
option=GetImageOption(image_info,"caption:gravity-hint");
if (option != (const char *) NULL)
{
if (LocaleCompare(option,"line") == 0)
pango_context_set_gravity_hint(context,PANGO_GRAVITY_HINT_LINE);
if (LocaleCompare(option,"natural") == 0)
pango_context_set_gravity_hint(context,PANGO_GRAVITY_HINT_NATURAL);
if (LocaleCompare(option,"strong") == 0)
pango_context_set_gravity_hint(context,PANGO_GRAVITY_HINT_STRONG);
}
/*
Configure layout.
*/
layout=pango_layout_new(context);
option=GetImageOption(image_info,"caption:auto-dir");
if (option != (const char *) NULL)
pango_layout_set_auto_dir(layout,1);
option=GetImageOption(image_info,"caption:ellipsize");
if (option != (const char *) NULL)
{
if (LocaleCompare(option,"end") == 0)
pango_layout_set_ellipsize(layout,PANGO_ELLIPSIZE_END);
if (LocaleCompare(option,"middle") == 0)
pango_layout_set_ellipsize(layout,PANGO_ELLIPSIZE_MIDDLE);
if (LocaleCompare(option,"none") == 0)
pango_layout_set_ellipsize(layout,PANGO_ELLIPSIZE_NONE);
if (LocaleCompare(option,"start") == 0)
pango_layout_set_ellipsize(layout,PANGO_ELLIPSIZE_START);
}
option=GetImageOption(image_info,"caption:justify");
if ((option != (const char *) NULL) && (IsMagickTrue(option) != MagickFalse))
pango_layout_set_justify(layout,1);
option=GetImageOption(image_info,"caption:single-paragraph");
if ((option != (const char *) NULL) && (IsMagickTrue(option) != MagickFalse))
pango_layout_set_single_paragraph_mode(layout,1);
option=GetImageOption(image_info,"caption:wrap");
if (option != (const char *) NULL)
{
if (LocaleCompare(option,"char") == 0)
pango_layout_set_wrap(layout,PANGO_WRAP_CHAR);
if (LocaleCompare(option,"word") == 0)
pango_layout_set_wrap(layout,PANGO_WRAP_WORD);
if (LocaleCompare(option,"word-char") == 0)
pango_layout_set_wrap(layout,PANGO_WRAP_WORD_CHAR);
}
option=GetImageOption(image_info,"caption:indent");
if (option != (const char *) NULL)
pango_layout_set_indent(layout,(StringToLong(option)*image->x_resolution*
PANGO_SCALE+36)/72);
switch (draw_info->align)
{
case CenterAlign: align=PANGO_ALIGN_CENTER; break;
case RightAlign: align=PANGO_ALIGN_RIGHT; break;
case LeftAlign:
default: align=PANGO_ALIGN_LEFT; break;
}
if ((align != PANGO_ALIGN_CENTER) &&
(draw_info->direction == RightToLeftDirection))
align=(PangoAlignment) (PANGO_ALIGN_LEFT+PANGO_ALIGN_RIGHT-align);
pango_layout_set_alignment(layout,align);
description=pango_font_description_from_string(draw_info->font ==
(char *) NULL ? "helvetica" : draw_info->font);
pango_font_description_set_size(description,PANGO_SCALE*draw_info->pointsize);
pango_layout_set_font_description(layout,description);
pango_font_description_free(description);
property=InterpretImageProperties(image_info,image,image_info->filename);
(void) SetImageProperty(image,"caption",property);
property=DestroyString(property);
caption=ConstantString(GetImageProperty(image,"caption"));
/*
Render caption.
*/
option=GetImageOption(image_info,"caption:markup");
if ((option != (const char *) NULL) && (IsMagickTrue(option) != MagickFalse))
pango_layout_set_markup(layout,caption,-1);
else
pango_layout_set_text(layout,caption,-1);
pango_layout_context_changed(layout);
page.x=0;
page.y=0;
if (image_info->page != (char *) NULL)
(void) ParseAbsoluteGeometry(image_info->page,&page);
if (image->columns == 0)
{
pango_layout_get_pixel_extents(layout,NULL,&extent);
image->columns=extent.x+extent.width;
}
else
{
image->columns-=2*page.x;
pango_layout_set_width(layout,(PANGO_SCALE*image->columns*
image->x_resolution+36.0)/72.0);
}
if (image->rows == 0)
{
pango_layout_get_pixel_extents(layout,NULL,&extent);
image->rows=extent.y+extent.height;
}
else
{
image->rows-=2*page.y;
pango_layout_set_height(layout,(PANGO_SCALE*image->rows*
image->y_resolution+36.0)/72.0);
}
/*
Create canvas.
*/
canvas=(FT_Bitmap *) AcquireMagickMemory(sizeof(*canvas));
if (canvas == (FT_Bitmap *) NULL)
{
draw_info=DestroyDrawInfo(draw_info);
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
}
canvas->width=image->columns;
canvas->pitch=(canvas->width+3) & ~3;
canvas->rows=image->rows;
canvas->buffer=(unsigned char *) AcquireQuantumMemory(canvas->pitch,
canvas->rows*sizeof(*canvas->buffer));
if (canvas->buffer == (unsigned char *) NULL)
{
draw_info=DestroyDrawInfo(draw_info);
canvas=(FT_Bitmap *) RelinquishMagickMemory(canvas);
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
}
canvas->num_grays=256;
canvas->pixel_mode=ft_pixel_mode_grays;
ResetMagickMemory(canvas->buffer,0x00,canvas->pitch*canvas->rows);
pango_ft2_render_layout(canvas,layout,0,0);
/*
Convert caption to image.
*/
image->columns+=2*page.x;
image->rows+=2*page.y;
if (SetImageBackgroundColor(image) == MagickFalse)
{
draw_info=DestroyDrawInfo(draw_info);
canvas->buffer=(unsigned char *) RelinquishMagickMemory(canvas->buffer);
canvas=(FT_Bitmap *) RelinquishMagickMemory(canvas);
caption=DestroyString(caption);
image=DestroyImageList(image);
return((Image *) NULL);
}
p=canvas->buffer;
for (y=page.y; y < (ssize_t) (image->rows-page.y); y++)
{
register ssize_t
x;
q=GetAuthenticPixels(image,0,y,image->columns,1,exception);
if (q == (PixelPacket *) NULL)
break;
q+=page.x;
for (x=page.x; x < (ssize_t) (image->columns-page.x); x++)
{
MagickRealType
fill_opacity;
(void) GetFillColor(draw_info,x,y,&fill_color);
fill_opacity=QuantumRange-(*p)/canvas->num_grays*(QuantumRange-
fill_color.opacity);
if (draw_info->text_antialias == MagickFalse)
fill_opacity=fill_opacity >= 0.5 ? 1.0 : 0.0;
MagickCompositeOver(&fill_color,fill_opacity,q,q->opacity,q);
p++;
q++;
}
for ( ; x < (ssize_t) ((canvas->width+3) & ~3); x++)
p++;
}
/*
Relinquish resources.
*/
draw_info=DestroyDrawInfo(draw_info);
canvas->buffer=(unsigned char *) RelinquishMagickMemory(canvas->buffer);
canvas=(FT_Bitmap *) RelinquishMagickMemory(canvas);
caption=DestroyString(caption);
return(GetFirstImageInList(image));
}
static GdkPixbuf *
biji_note_obj_get_icon (BijiItem *item)
{
GdkRGBA note_color;
const gchar *text;
cairo_t *cr;
PangoLayout *layout;
PangoFontDescription *desc;
GdkPixbuf *ret = NULL;
cairo_surface_t *surface = NULL;
GtkBorder frame_slice = { 4, 3, 3, 6 };
BijiNoteObj *note = BIJI_NOTE_OBJ (item);
if (note->priv->icon)
return note->priv->icon;
/* Create & Draw surface */
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
BIJI_ICON_WIDTH,
BIJI_ICON_HEIGHT) ;
cr = cairo_create (surface);
/* Background */
cairo_rectangle (cr, 0, 0, BIJI_ICON_WIDTH, BIJI_ICON_HEIGHT);
if (biji_note_obj_get_rgba (note, ¬e_color))
gdk_cairo_set_source_rgba (cr, ¬e_color);
cairo_fill (cr);
/* Text */
text = biji_note_id_get_content (note->priv->id);
if (text != NULL)
{
cairo_translate (cr, 10, 10);
layout = pango_cairo_create_layout (cr);
pango_layout_set_width (layout, 180000 );
pango_layout_set_wrap (layout, PANGO_WRAP_WORD_CHAR);
pango_layout_set_height (layout, 180000 ) ;
pango_layout_set_text (layout, text, -1);
desc = pango_font_description_from_string (BIJI_ICON_FONT);
pango_layout_set_font_description (layout, desc);
pango_font_description_free (desc);
cairo_set_source_rgb (cr, 0.0, 0.0, 0.0);
pango_cairo_update_layout (cr, layout);
pango_cairo_show_layout (cr, layout);
g_object_unref (layout);
}
cairo_destroy (cr);
ret = gdk_pixbuf_get_from_surface (surface,
0, 0,
BIJI_ICON_WIDTH,
BIJI_ICON_HEIGHT);
cairo_surface_destroy (surface);
note->priv->icon = gd_embed_image_in_frame (ret, "resource:///org/gnome/bijiben/thumbnail-frame.png",
&frame_slice, &frame_slice);
g_clear_object (&ret);
return note->priv->icon;
}
cairo_surface_t*
render_text_to_surface (gchar* text,
gint width,
gint height,
const cairo_font_options_t* font_opts,
gdouble dpi)
{
cairo_surface_t* surface;
cairo_t* cr;
PangoFontDescription* desc;
PangoLayout* layout;
// sanity check
if (!text ||
width <= 0 ||
height <= 0)
return NULL;
// create surface
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
width,
height);
if (cairo_surface_status (surface) != CAIRO_STATUS_SUCCESS)
return NULL;
// create context
cr = cairo_create (surface);
if (cairo_status (cr) != CAIRO_STATUS_SUCCESS)
{
cairo_surface_destroy (surface);
return NULL;
}
// clear context
cairo_scale (cr, 1.0f, 1.0f);
cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
cairo_paint (cr);
//
layout = pango_cairo_create_layout (cr);
desc = pango_font_description_new ();
pango_font_description_set_size (desc, 12 * PANGO_SCALE);
pango_font_description_set_family_static (desc, "Candara");
pango_font_description_set_weight (desc, PANGO_WEIGHT_NORMAL);
pango_font_description_set_style (desc, PANGO_STYLE_NORMAL);
pango_layout_set_wrap (layout, PANGO_WRAP_WORD);
pango_layout_set_font_description (layout, desc);
pango_font_description_free (desc);
pango_layout_set_width (layout, width * PANGO_SCALE);
pango_layout_set_height (layout, height * PANGO_SCALE);
pango_layout_set_alignment (layout, PANGO_ALIGN_CENTER);
pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_END);
// print and layout string (pango-wise)
pango_layout_set_text (layout, text, -1);
// make sure system-wide font-options like hinting, antialiasing etc.
// are taken into account
pango_cairo_context_set_font_options (pango_layout_get_context (layout),
font_opts);
pango_cairo_context_set_resolution (pango_layout_get_context (layout),
dpi);
pango_layout_context_changed (layout);
// draw pango-text to our cairo-context
cairo_move_to (cr, 0.0f, 0.0f);
cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
cairo_set_source_rgba (cr, 1.0f, 1.0f, 1.0f, 1.0f);
// this call leaks 3803 bytes, I've no idea how to fix that
pango_cairo_show_layout (cr, layout);
// clean up
g_object_unref (layout);
cairo_destroy (cr);
return surface;
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e a d P A N G O I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ReadPANGOImage() reads an image in the Pango Markup Language Format.
%
% The format of the ReadPANGOImage method is:
%
% Image *ReadPANGOImage(const ImageInfo *image_info,
% ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o image_info: the image info.
%
% o exception: return any errors or warnings in this structure.
%
*/
static Image *ReadPANGOImage(const ImageInfo *image_info,
ExceptionInfo *exception)
{
cairo_font_options_t
*font_options;
cairo_surface_t
*surface;
char
*caption,
*property;
cairo_t
*cairo_image;
const char
*option;
DrawInfo
*draw_info;
Image
*image;
MagickBooleanType
status;
PangoAlignment
align;
PangoContext
*context;
PangoFontMap
*fontmap;
PangoGravity
gravity;
PangoLayout
*layout;
PangoRectangle
extent;
PixelInfo
fill_color;
RectangleInfo
page;
register unsigned char
*p;
size_t
stride;
ssize_t
y;
unsigned char
*pixels;
/*
Initialize Image structure.
*/
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickSignature);
if (image_info->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
image_info->filename);
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickSignature);
image=AcquireImage(image_info,exception);
(void) ResetImagePage(image,"0x0+0+0");
/*
Format caption.
*/
option=GetImageArtifact(image,"filename");
if (option == (const char *) NULL)
property=InterpretImageProperties(image_info,image,image_info->filename,
exception);
else
if (LocaleNCompare(option,"pango:",6) == 0)
property=InterpretImageProperties(image_info,image,option+6,exception);
else
property=InterpretImageProperties(image_info,image,option,exception);
(void) SetImageProperty(image,"caption",property,exception);
property=DestroyString(property);
caption=ConstantString(GetImageProperty(image,"caption",exception));
/*
Get context.
*/
fontmap=pango_cairo_font_map_new();
pango_cairo_font_map_set_resolution(PANGO_CAIRO_FONT_MAP(fontmap),
image->resolution.x == 0.0 ? 90.0 : image->resolution.x);
font_options=cairo_font_options_create();
option=GetImageArtifact(image,"pango:hinting");
if (option != (const char *) NULL)
{
if (LocaleCompare(option,"none") != 0)
cairo_font_options_set_hint_style(font_options,CAIRO_HINT_STYLE_NONE);
if (LocaleCompare(option,"full") != 0)
cairo_font_options_set_hint_style(font_options,CAIRO_HINT_STYLE_FULL);
}
context=pango_font_map_create_context(fontmap);
pango_cairo_context_set_font_options(context,font_options);
cairo_font_options_destroy(font_options);
option=GetImageArtifact(image,"pango:language");
if (option != (const char *) NULL)
pango_context_set_language(context,pango_language_from_string(option));
draw_info=CloneDrawInfo(image_info,(DrawInfo *) NULL);
pango_context_set_base_dir(context,draw_info->direction ==
RightToLeftDirection ? PANGO_DIRECTION_RTL : PANGO_DIRECTION_LTR);
switch (draw_info->gravity)
{
case NorthGravity:
{
gravity=PANGO_GRAVITY_NORTH;
break;
}
case NorthWestGravity:
case WestGravity:
case SouthWestGravity:
{
gravity=PANGO_GRAVITY_WEST;
break;
}
case NorthEastGravity:
case EastGravity:
case SouthEastGravity:
{
gravity=PANGO_GRAVITY_EAST;
break;
}
case SouthGravity:
{
gravity=PANGO_GRAVITY_SOUTH;
break;
}
default:
{
gravity=PANGO_GRAVITY_AUTO;
break;
}
}
pango_context_set_base_gravity(context,gravity);
option=GetImageArtifact(image,"pango:gravity-hint");
if (option != (const char *) NULL)
{
if (LocaleCompare(option,"line") == 0)
pango_context_set_gravity_hint(context,PANGO_GRAVITY_HINT_LINE);
if (LocaleCompare(option,"natural") == 0)
pango_context_set_gravity_hint(context,PANGO_GRAVITY_HINT_NATURAL);
if (LocaleCompare(option,"strong") == 0)
pango_context_set_gravity_hint(context,PANGO_GRAVITY_HINT_STRONG);
}
/*
Configure layout.
*/
layout=pango_layout_new(context);
option=GetImageArtifact(image,"pango:auto-dir");
if (option != (const char *) NULL)
pango_layout_set_auto_dir(layout,1);
option=GetImageArtifact(image,"pango:ellipsize");
if (option != (const char *) NULL)
{
if (LocaleCompare(option,"end") == 0)
pango_layout_set_ellipsize(layout,PANGO_ELLIPSIZE_END);
if (LocaleCompare(option,"middle") == 0)
pango_layout_set_ellipsize(layout,PANGO_ELLIPSIZE_MIDDLE);
if (LocaleCompare(option,"none") == 0)
pango_layout_set_ellipsize(layout,PANGO_ELLIPSIZE_NONE);
if (LocaleCompare(option,"start") == 0)
pango_layout_set_ellipsize(layout,PANGO_ELLIPSIZE_START);
}
option=GetImageArtifact(image,"pango:justify");
if (IfMagickTrue(IsStringTrue(option)))
pango_layout_set_justify(layout,1);
option=GetImageArtifact(image,"pango:single-paragraph");
if (IfMagickTrue(IsStringTrue(option)))
pango_layout_set_single_paragraph_mode(layout,1);
option=GetImageArtifact(image,"pango:wrap");
if (option != (const char *) NULL)
{
if (LocaleCompare(option,"char") == 0)
pango_layout_set_wrap(layout,PANGO_WRAP_CHAR);
if (LocaleCompare(option,"word") == 0)
pango_layout_set_wrap(layout,PANGO_WRAP_WORD);
if (LocaleCompare(option,"word-char") == 0)
pango_layout_set_wrap(layout,PANGO_WRAP_WORD_CHAR);
}
option=GetImageArtifact(image,"pango:indent");
if (option != (const char *) NULL)
pango_layout_set_indent(layout,(int) ((StringToLong(option)*
(image->resolution.x == 0.0 ? 90.0 : image->resolution.x)*PANGO_SCALE+36)/
90.0+0.5));
switch (draw_info->align)
{
case CenterAlign: align=PANGO_ALIGN_CENTER; break;
case RightAlign: align=PANGO_ALIGN_RIGHT; break;
case LeftAlign: align=PANGO_ALIGN_LEFT; break;
default:
{
if (draw_info->gravity == CenterGravity)
{
align=PANGO_ALIGN_CENTER;
break;
}
align=PANGO_ALIGN_LEFT;
break;
}
}
if ((align != PANGO_ALIGN_CENTER) &&
(draw_info->direction == RightToLeftDirection))
align=(PangoAlignment) (PANGO_ALIGN_LEFT+PANGO_ALIGN_RIGHT-align);
pango_layout_set_alignment(layout,align);
if (draw_info->font != (char *) NULL)
{
PangoFontDescription
*description;
/*
Set font.
*/
description=pango_font_description_from_string(draw_info->font);
pango_font_description_set_size(description,(int) (PANGO_SCALE*
draw_info->pointsize+0.5));
pango_layout_set_font_description(layout,description);
pango_font_description_free(description);
}
option=GetImageArtifact(image,"pango:markup");
if ((option != (const char *) NULL) && (IsStringTrue(option) == MagickFalse))
pango_layout_set_text(layout,caption,-1);
else
{
GError
*error;
error=(GError *) NULL;
if (pango_parse_markup(caption,-1,0,NULL,NULL,NULL,&error) == 0)
(void) ThrowMagickException(exception,GetMagickModule(),CoderError,
error->message,"`%s'",image_info->filename);
pango_layout_set_markup(layout,caption,-1);
}
pango_layout_context_changed(layout);
page.x=0;
page.y=0;
if (image_info->page != (char *) NULL)
(void) ParseAbsoluteGeometry(image_info->page,&page);
if (image->columns == 0)
{
pango_layout_get_extents(layout,NULL,&extent);
image->columns=(extent.x+extent.width+PANGO_SCALE/2)/PANGO_SCALE+2*page.x;
}
else
{
image->columns-=2*page.x;
pango_layout_set_width(layout,(int) ((PANGO_SCALE*image->columns*
(image->resolution.x == 0.0 ? 90.0 : image->resolution.x)+45.0)/90.0+
0.5));
}
if (image->rows == 0)
{
pango_layout_get_extents(layout,NULL,&extent);
image->rows=(extent.y+extent.height+PANGO_SCALE/2)/PANGO_SCALE+2*page.y;
}
else
{
image->rows-=2*page.y;
pango_layout_set_height(layout,(int) ((PANGO_SCALE*image->rows*
(image->resolution.y == 0.0 ? 90.0 : image->resolution.y)+45.0)/90.0+
0.5));
}
/*
Render markup.
*/
stride=(size_t) cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32,
image->columns);
pixels=(unsigned char *) AcquireQuantumMemory(image->rows,stride*
sizeof(*pixels));
if (pixels == (unsigned char *) NULL)
{
draw_info=DestroyDrawInfo(draw_info);
caption=DestroyString(caption);
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
}
surface=cairo_image_surface_create_for_data(pixels,CAIRO_FORMAT_ARGB32,
image->columns,image->rows,stride);
cairo_image=cairo_create(surface);
cairo_set_operator(cairo_image,CAIRO_OPERATOR_CLEAR);
cairo_paint(cairo_image);
cairo_set_operator(cairo_image,CAIRO_OPERATOR_OVER);
cairo_translate(cairo_image,page.x,page.y);
pango_cairo_show_layout(cairo_image,layout);
cairo_destroy(cairo_image);
cairo_surface_destroy(surface);
g_object_unref(layout);
g_object_unref(fontmap);
/*
Convert surface to image.
*/
(void) SetImageBackgroundColor(image,exception);
p=pixels;
GetPixelInfo(image,&fill_color);
for (y=0; y < (ssize_t) image->rows; y++)
{
register Quantum
*q;
register ssize_t
x;
q=GetAuthenticPixels(image,0,y,image->columns,1,exception);
if (q == (Quantum *) NULL)
break;
for (x=0; x < (ssize_t) image->columns; x++)
{
double
gamma;
fill_color.blue=(double) ScaleCharToQuantum(*p++);
fill_color.green=(double) ScaleCharToQuantum(*p++);
fill_color.red=(double) ScaleCharToQuantum(*p++);
fill_color.alpha=(double) ScaleCharToQuantum(*p++);
/*
Disassociate alpha.
*/
gamma=1.0-QuantumScale*fill_color.alpha;
gamma=PerceptibleReciprocal(gamma);
fill_color.blue*=gamma;
fill_color.green*=gamma;
fill_color.red*=gamma;
CompositePixelOver(image,&fill_color,fill_color.alpha,q,(double)
GetPixelAlpha(image,q),q);
q+=GetPixelChannels(image);
}
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
if (image->previous == (Image *) NULL)
{
status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
image->rows);
if (status == MagickFalse)
break;
}
}
/*
Relinquish resources.
*/
pixels=(unsigned char *) RelinquishMagickMemory(pixels);
draw_info=DestroyDrawInfo(draw_info);
caption=DestroyString(caption);
return(GetFirstImageInList(image));
}
void text_rsrc::updatePixels_setup( text_update_context* context )
{
// Set up Cairo then Pango with initial values /////////////////////////////////////////////////////////////////////////////////////////////////////////
context -> c_surf = cairo_image_surface_create( CAIRO_FORMAT_A8, // We only need alpha, coloring is handled by OpenGL
dimensions[ 0 ],
dimensions[ 1 ] );
context -> c_status = cairo_surface_status( context -> c_surf );
if( context -> c_status )
{
exception e;
ff::write( *e,
"text_rsrc::updatePixels(): Error creating Cairo surface: ",
cairo_status_to_string( context -> c_status ) );
throw e;
}
context -> c_context = cairo_create( context -> c_surf );
context -> c_status = cairo_status( context -> c_context );
if( context -> c_status )
{
exception e;
ff::write( *e,
"text_rsrc::updatePixels(): Error creating Cairo context: ",
cairo_status_to_string( context -> c_status ) );
throw e;
}
cairo_surface_destroy( context -> c_surf ); // Dereference surface
context -> p_layout = pango_cairo_create_layout( context -> c_context );
// Customize Pango layout & font ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
if( max_dimensions[ 0 ] < 0 )
pango_layout_set_width( context -> p_layout,
-1 );
else
pango_layout_set_width( context -> p_layout,
max_dimensions[ 0 ] * PANGO_SCALE );
if( max_dimensions[ 1 ] < 0 )
pango_layout_set_height( context -> p_layout,
-1 );
else
pango_layout_set_height( context -> p_layout,
max_dimensions[ 1 ] * PANGO_SCALE );
context -> c_fontops = cairo_font_options_create();
if( hinting_enabled )
cairo_font_options_set_hint_style( context -> c_fontops,
CAIRO_HINT_STYLE_DEFAULT );
else
cairo_font_options_set_hint_style( context -> c_fontops,
CAIRO_HINT_STYLE_NONE );
if( antialiasing_enabled )
cairo_font_options_set_antialias( context -> c_fontops,
CAIRO_ANTIALIAS_DEFAULT );
else
cairo_font_options_set_antialias( context -> c_fontops,
CAIRO_ANTIALIAS_NONE );
// TODO: Potentially set subpixel rendering
pango_cairo_context_set_font_options( pango_layout_get_context( context -> p_layout ),
context -> c_fontops ); // Many thanks to ui/gfc/pango_util.cc from the Chromium project, which appears
// to be the only online example of setting PangoCairo font options
context -> p_fontd = pango_font_description_from_string( font.c_str() );
pango_font_description_set_absolute_size( context -> p_fontd,
point_size * PANGO_SCALE );
pango_layout_set_font_description( context -> p_layout,
context -> p_fontd );
pango_font_description_free( context -> p_fontd ); // Dereference font description
switch( ellipsize )
{
case NONE:
pango_layout_set_ellipsize( context -> p_layout,
PANGO_ELLIPSIZE_NONE );
break;
case BEGINNING:
pango_layout_set_ellipsize( context -> p_layout,
PANGO_ELLIPSIZE_START );
break;
case MIDDLE:
pango_layout_set_ellipsize( context -> p_layout,
PANGO_ELLIPSIZE_MIDDLE );
break;
case END:
pango_layout_set_ellipsize( context -> p_layout,
PANGO_ELLIPSIZE_END );
break;
default:
throw exception( "text_rsrc::updatePixels(): Unknown ellipsize mode" );
}
pango_layout_set_text( context -> p_layout,
string.c_str(),
-1 );
pango_cairo_update_layout( context -> c_context,
context -> p_layout );
}
void iupdrvDrawText(IdrawCanvas* dc, const char* text, int len, int x, int y, int w, int h, long color, const char* font, int flags, double text_orientation)
{
PangoLayout* fontlayout = (PangoLayout*)iupgtkGetPangoLayout(font);
PangoAlignment alignment = PANGO_ALIGN_LEFT;
GdkColor c;
PangoContext* fontcontext = NULL;
int layout_w = w, layout_h = h;
int layout_center = flags & IUP_DRAW_LAYOUTCENTER;
if (text_orientation && layout_center)
iupDrawGetTextInnerBounds(w, h, text_orientation, &layout_w, &layout_h);
iupgdkColorSet(&c, color);
gdk_gc_set_rgb_fg_color(dc->pixmap_gc, &c);
text = iupgtkStrConvertToSystemLen(text, &len);
pango_layout_set_text(fontlayout, text, len);
if (flags & IUP_DRAW_RIGHT)
alignment = PANGO_ALIGN_RIGHT;
else if (flags & IUP_DRAW_CENTER)
alignment = PANGO_ALIGN_CENTER;
if (flags & IUP_DRAW_WRAP)
{
pango_layout_set_width(fontlayout, iupGTK_PIXELS2PANGOUNITS(layout_w));
#ifdef PANGO_VERSION_CHECK
#if PANGO_VERSION_CHECK(1,2,0)
pango_layout_set_height(fontlayout, iupGTK_PIXELS2PANGOUNITS(layout_h));
#endif
#endif
}
else if (flags & IUP_DRAW_ELLIPSIS)
{
pango_layout_set_width(fontlayout, iupGTK_PIXELS2PANGOUNITS(layout_w));
#ifdef PANGO_VERSION_CHECK
#if PANGO_VERSION_CHECK(1,2,0)
pango_layout_set_height(fontlayout, iupGTK_PIXELS2PANGOUNITS(layout_h));
#endif
#endif
pango_layout_set_ellipsize(fontlayout, PANGO_ELLIPSIZE_END);
}
pango_layout_set_alignment(fontlayout, alignment);
if (flags & IUP_DRAW_CLIP)
{
GdkRectangle rect;
rect.x = x;
rect.y = y;
rect.width = w;
rect.height = h;
gdk_gc_set_clip_rectangle(dc->pixmap_gc, &rect);
}
if (text_orientation)
{
PangoRectangle rect;
PangoMatrix fontmatrix = PANGO_MATRIX_INIT;
fontcontext = pango_layout_get_context(fontlayout);
pango_matrix_rotate(&fontmatrix, text_orientation);
pango_context_set_matrix(fontcontext, &fontmatrix);
pango_layout_context_changed(fontlayout);
pango_layout_get_pixel_extents(fontlayout, NULL, &rect);
#ifdef PANGO_VERSION_CHECK
#if PANGO_VERSION_CHECK(1,16,0)
pango_matrix_transform_pixel_rectangle(&fontmatrix, &rect);
#endif
#endif
/* Adjust the position considering the Pango rectangle transformed */
if (layout_center)
{
x += (w - rect.width) / 2;
y += (h - rect.height) / 2;
}
else
{
x += (int)rect.x;
y += (int)rect.y;
}
}
gdk_draw_layout(dc->pixmap, dc->pixmap_gc, x, y, fontlayout);
/* restore settings */
if ((flags & IUP_DRAW_WRAP) || (flags & IUP_DRAW_ELLIPSIS))
{
pango_layout_set_width(fontlayout, -1);
#ifdef PANGO_VERSION_CHECK
#if PANGO_VERSION_CHECK(1,2,0)
pango_layout_set_height(fontlayout, -1);
#endif
#endif
}
if (flags & IUP_DRAW_ELLIPSIS)
pango_layout_set_ellipsize(fontlayout, PANGO_ELLIPSIZE_NONE);
if (flags & IUP_DRAW_CLIP)
gdk_gc_set_clip_region(dc->pixmap_gc, NULL);
if (text_orientation)
pango_context_set_matrix(fontcontext, NULL);
}
PangoLayout*
gdip_pango_setup_layout (GpGraphics *graphics, GDIPCONST WCHAR *stringUnicode, int length, GDIPCONST GpFont *font,
GDIPCONST RectF *rc, RectF *box, GDIPCONST GpStringFormat *format, int **charsRemoved)
{
GpStringFormat *fmt;
PangoLayout *layout;
PangoContext *context;
PangoRectangle logical; /* logical size of text (used for alignment) */
PangoRectangle ink; /* ink size of text (to pixel boundaries) */
PangoAttrList *list = NULL;
GString *ftext;
PangoTabArray *tabs;
PangoLayoutIter *iter;
int i;
int FrameWidth; /* rc->Width (or rc->Height if vertical) */
int FrameHeight; /* rc->Height (or rc->Width if vertical) */
int FrameX; /* rc->X (or rc->Y if vertical) */
int FrameY; /* rc->Y (or rc->X if vertical) */
int y0; /* y0,y1,clipNN used for checking line positions vs. clip rectangle */
int y1;
double clipx1;
double clipx2;
double clipy1;
double clipy2;
int trimSpace; /* whether or not to trim the space */
gchar *text = ucs2_to_utf8 (stringUnicode, length);
if (!text)
return NULL;
length = strlen(text);
if (charsRemoved) {
(*charsRemoved) = GdipAlloc (sizeof (int) * length);
if (!*charsRemoved) {
GdipFree (text);
return NULL;
}
memset (*charsRemoved, 0, sizeof (int) * length);
}
/* TODO - Digit substitution */
// g_warning ("layout >%s< (%d) [x %g, y %g, w %g, h %g] [font %s, %g points]", text, length, rc->X, rc->Y, rc->Width, FrameHeight, font->face, font->emSize);
/* a NULL format is valid, it means get the generic default values (and free them later) */
if (!format) {
GpStatus status = GdipStringFormatGetGenericDefault ((GpStringFormat **)&fmt);
if (status != Ok) {
GdipFree (text);
return NULL;
}
} else {
fmt = (GpStringFormat *)format;
}
layout = pango_cairo_create_layout (graphics->ct);
/* context is owned by Pango (i.e. not referenced counted) do not free */
context = pango_layout_get_context (layout);
pango_layout_set_font_description (layout, gdip_get_pango_font_description ((GpFont*) font));
if (fmt->formatFlags & StringFormatFlagsDirectionVertical) {
FrameWidth = MAKE_SAFE_FOR_PANGO (SAFE_FLOAT_TO_UINT32 (rc->Height));
FrameHeight = MAKE_SAFE_FOR_PANGO (SAFE_FLOAT_TO_UINT32 (rc->Width));
FrameX = SAFE_FLOAT_TO_UINT32 (rc->Y);
FrameY = SAFE_FLOAT_TO_UINT32 (rc->X);
} else {
FrameWidth = MAKE_SAFE_FOR_PANGO (SAFE_FLOAT_TO_UINT32 (rc->Width));
FrameHeight = MAKE_SAFE_FOR_PANGO (SAFE_FLOAT_TO_UINT32 (rc->Height));
FrameX = SAFE_FLOAT_TO_UINT32 (rc->X);
FrameY = SAFE_FLOAT_TO_UINT32 (rc->Y);
}
//g_warning("FW: %d\tFH: %d", FrameWidth, FrameHeight);
if ((FrameWidth <= 0) || (fmt->formatFlags & StringFormatFlagsNoWrap)) {
pango_layout_set_width (layout, -1);
//g_warning ("Setting width: %d", -1);
} else {
pango_layout_set_width (layout, FrameWidth * PANGO_SCALE);
//g_warning ("Setting width: %d", FrameWidth * PANGO_SCALE);
}
if ((rc->Width != 0) && (rc->Height != 0) && ((fmt->formatFlags & StringFormatFlagsNoClip) == 0)) {
// g_warning ("\tclip [%g %g %g %g]", rc->X, rc->Y, rc->Width, rc->Height);
/* We do not call cairo_reset_clip because we want to take previous clipping into account */
/* Use rc instead of frame variables because this is pre-transform */
gdip_cairo_rectangle (graphics, rc->X, rc->Y, rc->Width, rc->Height, TRUE);
cairo_clip (graphics->ct);
}
/* with GDI+ the API not the renderer makes the direction decision */
pango_layout_set_auto_dir (layout, FALSE);
if (!(fmt->formatFlags & StringFormatFlagsDirectionRightToLeft) != !(fmt->formatFlags & StringFormatFlagsDirectionVertical)) {
pango_context_set_base_dir (context, PANGO_DIRECTION_WEAK_RTL);
pango_layout_context_changed (layout);
/* horizontal alignment */
switch (fmt->alignment) {
case StringAlignmentNear:
pango_layout_set_alignment (layout, PANGO_ALIGN_RIGHT);
break;
case StringAlignmentCenter:
pango_layout_set_alignment (layout, PANGO_ALIGN_CENTER);
break;
case StringAlignmentFar:
pango_layout_set_alignment (layout, PANGO_ALIGN_LEFT);
break;
}
} else {
/* pango default base dir is WEAK_LTR, which is what we want */
/* horizontal alignment */
switch (fmt->alignment) {
case StringAlignmentNear:
pango_layout_set_alignment (layout, PANGO_ALIGN_LEFT);
break;
case StringAlignmentCenter:
pango_layout_set_alignment (layout, PANGO_ALIGN_CENTER);
break;
case StringAlignmentFar:
pango_layout_set_alignment (layout, PANGO_ALIGN_RIGHT);
break;
}
}
#ifdef PANGO_VERSION_CHECK
#if PANGO_VERSION_CHECK(1,16,0)
if (fmt->formatFlags & StringFormatFlagsDirectionVertical) {
if (fmt->formatFlags & StringFormatFlagsDirectionRightToLeft) {
cairo_rotate (graphics->ct, M_PI/2.0);
cairo_translate (graphics->ct, 0, -FrameHeight);
pango_cairo_update_context (graphics->ct, context);
} else {
cairo_rotate (graphics->ct, 3.0*M_PI/2.0);
cairo_translate (graphics->ct, -FrameWidth, 0);
pango_cairo_update_context (graphics->ct, context);
}
/* only since Pango 1.16 */
pango_context_set_base_gravity (context, PANGO_GRAVITY_AUTO);
pango_context_set_gravity_hint (context, PANGO_GRAVITY_HINT_LINE);
pango_layout_context_changed (layout);
}
#endif
#endif
/* TODO - StringFormatFlagsDisplayFormatControl
scan and replace them ??? */
/* Trimming options seem to apply only to the end of the string - gdi+ will still wrap
* with preference to word first, then character. Unfortunately, pango doesn't have
* any way to differentiate wrapping behavior from trimming behavior that I could find */
pango_layout_set_wrap (layout, PANGO_WRAP_WORD_CHAR);
switch (fmt->trimming) {
case StringTrimmingNone:
pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_NONE);
break;
case StringTrimmingCharacter:
pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_NONE);
break;
case StringTrimmingWord:
pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_NONE);
break;
case StringTrimmingEllipsisCharacter:
pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_END);
if (!(fmt->formatFlags & StringFormatFlagsNoWrap))
pango_layout_set_height (layout, FrameHeight == 0 ? G_MAXINT32 : FrameHeight * PANGO_SCALE);
break;
case StringTrimmingEllipsisWord:
pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_END);
if (!(fmt->formatFlags & StringFormatFlagsNoWrap))
pango_layout_set_height (layout, FrameHeight == 0 ? G_MAXINT32 : FrameHeight * PANGO_SCALE);
break;
case StringTrimmingEllipsisPath:
pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_MIDDLE);
if (!(fmt->formatFlags & StringFormatFlagsNoWrap))
pango_layout_set_height (layout, FrameHeight == 0 ? G_MAXINT32 : FrameHeight * PANGO_SCALE);
break;
}
/* some stuff can only be done by manipulating the attributes (but we can avoid this most of the time) */
if ((fmt->formatFlags & StringFormatFlagsNoFontFallback) || (font->style & (FontStyleUnderline | FontStyleStrikeout))) {
list = gdip_get_layout_attributes (layout);
/* StringFormatFlagsNoFontFallback */
if (fmt->formatFlags & StringFormatFlagsNoFontFallback) {
PangoAttribute *attr = pango_attr_fallback_new (FALSE);
attr->start_index = 0;
attr->end_index = length;
pango_attr_list_insert (list, attr);
}
if (font->style & FontStyleUnderline) {
PangoAttribute *attr = pango_attr_underline_new (PANGO_UNDERLINE_SINGLE);
attr->start_index = 0;
attr->end_index = length;
pango_attr_list_insert (list, attr);
}
if (font->style & FontStyleStrikeout) {
PangoAttribute *attr = pango_attr_strikethrough_new (TRUE);
attr->start_index = 0;
attr->end_index = length;
pango_attr_list_insert (list, attr);
}
}
if (fmt->numtabStops > 0) {
float tabPosition;
tabs = pango_tab_array_new (fmt->numtabStops, FALSE);
tabPosition = fmt->firstTabOffset;
for (i = 0; i < fmt->numtabStops; i++) {
tabPosition += fmt->tabStops[i];
pango_tab_array_set_tab (tabs, i, PANGO_TAB_LEFT, (gint)min (tabPosition, PANGO_MAX) * PANGO_SCALE);
}
pango_layout_set_tabs (layout, tabs);
pango_tab_array_free (tabs);
}
//g_warning ("length before ws removal: %d", length);
trimSpace = (fmt->formatFlags & StringFormatFlagsMeasureTrailingSpaces) == 0;
switch (fmt->hotkeyPrefix) {
case HotkeyPrefixHide:
/* we need to remove any accelerator from the string */
ftext = gdip_process_string (text, length, 1, trimSpace, NULL, charsRemoved);
break;
case HotkeyPrefixShow:
/* optimization: is seems that we never see the hotkey when using an underline font */
if (font->style & FontStyleUnderline) {
/* so don't bother drawing it (and simply add the '&' character) */
ftext = gdip_process_string (text, length, 1, trimSpace, NULL, charsRemoved);
} else {
/* find accelerator and add attribute to the next character (unless it's the prefix too) */
if (!list)
list = gdip_get_layout_attributes (layout);
ftext = gdip_process_string (text, length, 1, trimSpace, list, charsRemoved);
}
break;
default:
ftext = gdip_process_string (text, length, 0, trimSpace, NULL, charsRemoved);
break;
}
length = ftext->len;
//g_warning ("length after ws removal: %d", length);
if (list) {
pango_layout_set_attributes (layout, list);
pango_attr_list_unref (list);
}
// g_warning("\tftext>%s< (%d)", ftext->str, -1);
pango_layout_set_text (layout, ftext->str, ftext->len);
GdipFree (text);
g_string_free(ftext, TRUE);
/* Trim the text after the last line for ease of counting lines/characters */
/* Also prevents drawing whole lines outside the boundaries if NoClip was specified */
/* In case of pre-existing clipping, use smaller of clip rectangle or our specified height */
if (FrameHeight > 0) {
cairo_clip_extents (graphics->ct, &clipx1, &clipy1, &clipx2, &clipy2);
if (clipy2 > 0 && !(fmt->formatFlags & StringFormatFlagsNoClip))
clipy2 = min (clipy2, FrameHeight + FrameY);
else
clipy2 = FrameHeight + FrameY;
iter = pango_layout_get_iter (layout);
do {
if (iter == NULL)
break;
pango_layout_iter_get_line_yrange (iter, &y0, &y1);
//g_warning("yrange: %d %d clipy2: %f", y0 / PANGO_SCALE, y1 / PANGO_SCALE, clipy2);
/* StringFormatFlagsLineLimit */
if (((fmt->formatFlags & StringFormatFlagsLineLimit) && y1 / PANGO_SCALE > clipy2) || (y0 / PANGO_SCALE > clipy2)) {
PangoLayoutLine *line = pango_layout_iter_get_line_readonly (iter);
pango_layout_set_text (layout, pango_layout_get_text (layout), line->start_index);
break;
}
} while (pango_layout_iter_next_line (iter));
pango_layout_iter_free (iter);
}
pango_layout_get_pixel_extents (layout, &ink, &logical);
// g_warning ("\tlogical\t[x %d, y %d, w %d, h %d][x %d, y %d, w %d, h %d]", logical.x, logical.y, logical.width, logical.height, ink.x, ink.y, ink.width, ink.height);
if ((fmt->formatFlags & StringFormatFlagsNoFitBlackBox) == 0) {
/* By default don't allow overhang - ink space may be larger than logical space */
if (fmt->formatFlags & StringFormatFlagsDirectionVertical) {
box->X = min (ink.y, logical.y);
box->Y = min (ink.x, logical.x);
box->Height = max (ink.width, logical.width);
box->Width = max (ink.height, logical.height);
} else {
box->X = min (ink.x, logical.x);
box->Y = min (ink.y, logical.y);
box->Height = max (ink.height, logical.height);
box->Width = max (ink.width, logical.width);
}
} else {
/* Allow overhang */
if (fmt->formatFlags & StringFormatFlagsDirectionVertical) {
box->X = logical.y;
box->Y = logical.x;
box->Height = logical.width;
box->Width = logical.height;
} else {
box->X = logical.x;
box->Y = logical.y;
box->Height = logical.height;
box->Width = logical.width;
}
}
// g_warning ("\tbox\t[x %g, y %g, w %g, h %g]", box->X, box->Y, box->Width, box->Height);
/* vertical alignment*/
if (fmt->formatFlags & StringFormatFlagsDirectionVertical) {
switch (fmt->lineAlignment) {
case StringAlignmentNear:
break;
case StringAlignmentCenter:
box->X += (rc->Width - box->Width) / 2;
break;
case StringAlignmentFar:
box->X += (rc->Width - box->Width);
break;
}
} else {
switch (fmt->lineAlignment) {
case StringAlignmentNear:
break;
case StringAlignmentCenter:
box->Y += (rc->Height - box->Height) / 2;
break;
case StringAlignmentFar:
box->Y += (rc->Height - box->Height);
break;
}
}
// g_warning ("va-box\t[x %g, y %g, w %g, h %g]", box->X, box->Y, box->Width, box->Height);
pango_cairo_update_layout (graphics->ct, layout);
return layout;
}
void
calendar_draw_page (GtkPrintOperation *operation, GtkPrintContext *context, gint npage, gpointer user_data)
{
PangoLayout *layout;
PangoFontDescription *month_name_font, *day_name_font, *day_num_font, *event_font;
cairo_t *cr;
GDate *date;
gdouble page_width, page_height, day_width, day_height;
gint text_width, text_height, header_height, event_height, mnf_height, dnf_height, duf_height;
gint day, month, i, j;
guint32 julian;
gboolean monday, actual;
gchar buffer[BUFFER_SIZE];
gint padding = config.cal_print_padding;
GUI *appGUI = (GUI *) user_data;
date = g_date_new_julian (g_date_get_julian (appGUI->cal->date));
g_return_if_fail (date != NULL);
cr = gtk_print_context_get_cairo_context (context);
layout = gtk_print_context_create_pango_layout (context);
month_name_font = pango_font_description_from_string (config.cal_print_month_name_font);
day_name_font = pango_font_description_from_string (config.cal_print_day_name_font);
day_num_font = pango_font_description_from_string (config.cal_print_day_num_font);
event_font = pango_font_description_from_string (config.cal_print_event_font);
pango_layout_set_text (layout, "Aj", -1);
pango_layout_set_font_description (layout, month_name_font);
pango_layout_get_pixel_size (layout, NULL, &mnf_height);
mnf_height *= 1.2;
pango_layout_set_font_description (layout, day_name_font);
pango_layout_get_pixel_size (layout, NULL, &dnf_height);
dnf_height *= 1.2;
pango_layout_set_font_description (layout, day_num_font);
pango_layout_get_pixel_size (layout, NULL, &duf_height);
page_width = gtk_print_context_get_width (context);
day_width = page_width / 7;
page_height = gtk_print_context_get_height (context);
header_height = mnf_height + dnf_height;
day_height = (page_height - header_height) / 6;
event_height = day_height - duf_height - padding * 3;
cairo_set_line_width (cr, 1);
monday = (config.display_options & GUI_CALENDAR_WEEK_START_MONDAY) ? TRUE : FALSE;
/* Month and year */
pango_layout_set_font_description (layout, month_name_font);
g_date_strftime (buffer, BUFFER_SIZE, "%B %Y", date);
pango_layout_set_text (layout, buffer, -1);
pango_layout_get_pixel_size (layout, &text_width, NULL);
cairo_move_to (cr, (page_width - text_width) / 2, 0);
pango_cairo_show_layout (cr, layout);
/* Day names */
pango_layout_set_font_description (layout, day_name_font);
for (i = 0; i < 7; i++) {
g_snprintf (buffer, BUFFER_SIZE, "%s", utl_get_day_name (i + 7 + monday, FALSE));
pango_layout_set_text (layout, buffer, -1);
pango_layout_get_pixel_size (layout, &text_width, NULL);
cairo_move_to (cr, day_width * i + (day_width - text_width) / 2, mnf_height);
pango_cairo_show_layout (cr, layout);
}
/* Day */
g_date_set_day (date, 1);
day = g_date_get_weekday (date);
month = g_date_get_month (date);
day = monday ? day - 1 : day % 7;
if (day > 0)
g_date_subtract_days (date, day);
day = g_date_get_day (date);
julian = g_date_get_julian (date);
pango_layout_set_wrap (layout, PANGO_WRAP_WORD_CHAR);
pango_layout_set_width (layout, (day_width - padding * 2) * PANGO_SCALE);
pango_layout_set_height (layout, event_height * PANGO_SCALE);
pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_END);
pango_layout_set_indent (layout, -4 * PANGO_SCALE);
for (i = 0; i < 6; i++) {
for (j = 0; j < 7; j++) {
actual = (month == g_date_get_month (date)) ? TRUE : FALSE;
day = g_date_get_day (date);
cairo_rectangle (cr, day_width * j, header_height + day_height * i, day_width, day_height);
if (actual) {
cairo_set_source_rgb (cr, 1.0, 1.0, 1.0);
} else {
cairo_set_source_rgb (cr, 0.8, 0.8, 0.8);
}
cairo_fill_preserve (cr);
cairo_set_source_rgb (cr, 0, 0, 0);
cairo_stroke (cr);
pango_layout_set_font_description (layout, day_num_font);
if (actual) {
cairo_move_to (cr, day_width * j + padding, header_height + day_height * i + padding);
if ((j == 0 && !monday) || (j == 5 && monday) || j == 6) {
g_snprintf (buffer, BUFFER_SIZE, "<span color=\"red\">%d</span>", day);
} else {
g_snprintf (buffer, BUFFER_SIZE, "%d", day);
}
pango_layout_set_markup (layout, buffer, -1);
pango_cairo_show_layout (cr, layout);
cal_print_get_events (buffer, julian, appGUI);
pango_layout_set_markup (layout, "", -1);
pango_layout_set_text (layout, buffer, -1);
pango_layout_set_font_description (layout, event_font);
pango_layout_get_pixel_size (layout, NULL, &text_height);
cairo_move_to (cr, day_width * j + padding, header_height + day_height * (i + 1) - text_height - padding);
pango_cairo_show_layout (cr, layout);
} else {
cairo_move_to (cr, day_width * j + padding, header_height + day_height * i + padding);
g_snprintf (buffer, BUFFER_SIZE, "<span color=\"white\">%d</span>", day);
pango_layout_set_markup (layout, buffer, -1);
pango_cairo_show_layout (cr, layout);
}
g_date_add_days (date, 1);
julian++;
}
}
g_date_free (date);
pango_font_description_free (month_name_font);
pango_font_description_free (day_name_font);
pango_font_description_free (day_num_font);
pango_font_description_free (event_font);
g_object_unref (layout);
}
/**
* Sends the given character to the terminal at the given row and column,
* rendering the character immediately. This bypasses the guac_terminal_display
* mechanism and is intended for flushing of updates only.
*/
int __guac_terminal_set(guac_terminal_display* display, int row, int col, int codepoint) {
int width;
int bytes;
char utf8[4];
/* Use foreground color */
const guac_terminal_color* color =
&guac_terminal_palette[display->glyph_foreground];
/* Use background color */
const guac_terminal_color* background =
&guac_terminal_palette[display->glyph_background];
cairo_surface_t* surface;
cairo_t* cairo;
int surface_width, surface_height;
PangoLayout* layout;
int layout_width, layout_height;
int ideal_layout_width, ideal_layout_height;
/* Calculate width in columns */
width = wcwidth(codepoint);
if (width < 0)
width = 1;
/* Do nothing if glyph is empty */
if (width == 0)
return 0;
/* Convert to UTF-8 */
bytes = guac_terminal_encode_utf8(codepoint, utf8);
surface_width = width * display->char_width;
surface_height = display->char_height;
ideal_layout_width = surface_width * PANGO_SCALE;
ideal_layout_height = surface_height * PANGO_SCALE;
/* Prepare surface */
surface = cairo_image_surface_create(CAIRO_FORMAT_RGB24,
surface_width, surface_height);
cairo = cairo_create(surface);
/* Fill background */
cairo_set_source_rgb(cairo,
background->red / 255.0,
background->green / 255.0,
background->blue / 255.0);
cairo_rectangle(cairo, 0, 0, surface_width, surface_height);
cairo_fill(cairo);
/* Get layout */
layout = pango_cairo_create_layout(cairo);
pango_layout_set_font_description(layout, display->font_desc);
pango_layout_set_text(layout, utf8, bytes);
pango_layout_set_alignment(layout, PANGO_ALIGN_CENTER);
pango_layout_get_size(layout, &layout_width, &layout_height);
/* If layout bigger than available space, scale it back */
if (layout_width > ideal_layout_width || layout_height > ideal_layout_height) {
double scale = fmin(ideal_layout_width / (double) layout_width,
ideal_layout_height / (double) layout_height);
cairo_scale(cairo, scale, scale);
/* Update layout to reflect scaled surface */
pango_layout_set_width(layout, ideal_layout_width / scale);
pango_layout_set_height(layout, ideal_layout_height / scale);
pango_cairo_update_layout(cairo, layout);
}
/* Draw */
cairo_set_source_rgb(cairo,
color->red / 255.0,
color->green / 255.0,
color->blue / 255.0);
cairo_move_to(cairo, 0.0, 0.0);
pango_cairo_show_layout(cairo, layout);
/* Draw */
guac_common_surface_draw(display->display_surface,
display->char_width * col,
display->char_height * row,
surface);
/* Free all */
g_object_unref(layout);
cairo_destroy(cairo);
cairo_surface_destroy(surface);
return 0;
}
static uint32_t render_detailed(cairo_t *cairo, struct swaynag *swaynag,
uint32_t y) {
uint32_t width = swaynag->width * swaynag->scale;
int border = swaynag->type->details_border_thickness * swaynag->scale;
int padding = swaynag->type->message_padding * swaynag->scale;
int decor = padding + border;
swaynag->details.x = decor;
swaynag->details.y = y * swaynag->scale + decor;
swaynag->details.width = width - decor * 2;
PangoLayout *layout = get_pango_layout(cairo, swaynag->type->font,
swaynag->details.message, swaynag->scale, false);
pango_layout_set_width(layout,
(swaynag->details.width - padding * 2) * PANGO_SCALE);
pango_layout_set_wrap(layout, PANGO_WRAP_WORD_CHAR);
pango_layout_set_single_paragraph_mode(layout, false);
pango_cairo_update_layout(cairo, layout);
swaynag->details.total_lines = pango_layout_get_line_count(layout);
PangoLayoutLine *line;
line = pango_layout_get_line_readonly(layout, swaynag->details.offset);
gint offset = line->start_index;
const char *text = pango_layout_get_text(layout);
pango_layout_set_text(layout, text + offset, strlen(text) - offset);
int text_width, text_height;
pango_cairo_update_layout(cairo, layout);
pango_layout_get_pixel_size(layout, &text_width, &text_height);
bool show_buttons = swaynag->details.offset > 0;
int button_width = get_detailed_scroll_button_width(cairo, swaynag);
if (show_buttons) {
swaynag->details.width -= button_width;
pango_layout_set_width(layout,
(swaynag->details.width - padding * 2) * PANGO_SCALE);
}
uint32_t ideal_height;
do {
ideal_height = swaynag->details.y + text_height + decor + padding * 2;
if (ideal_height > SWAYNAG_MAX_HEIGHT) {
ideal_height = SWAYNAG_MAX_HEIGHT;
if (!show_buttons) {
show_buttons = true;
swaynag->details.width -= button_width;
pango_layout_set_width(layout,
(swaynag->details.width - padding * 2) * PANGO_SCALE);
}
}
swaynag->details.height = ideal_height - swaynag->details.y - decor;
pango_layout_set_height(layout,
(swaynag->details.height - padding * 2) * PANGO_SCALE);
pango_layout_set_ellipsize(layout, PANGO_ELLIPSIZE_END);
pango_cairo_update_layout(cairo, layout);
pango_layout_get_pixel_size(layout, &text_width, &text_height);
} while (text_height != (swaynag->details.height - padding * 2));
swaynag->details.visible_lines = pango_layout_get_line_count(layout);
if (show_buttons) {
swaynag->details.button_up.x =
swaynag->details.x + swaynag->details.width;
swaynag->details.button_up.y = swaynag->details.y;
swaynag->details.button_up.width = button_width;
swaynag->details.button_up.height = swaynag->details.height / 2;
render_details_scroll_button(cairo, swaynag,
&swaynag->details.button_up);
swaynag->details.button_down.x =
swaynag->details.x + swaynag->details.width;
swaynag->details.button_down.y =
swaynag->details.button_up.y + swaynag->details.button_up.height;
swaynag->details.button_down.width = button_width;
swaynag->details.button_down.height = swaynag->details.height / 2;
render_details_scroll_button(cairo, swaynag,
&swaynag->details.button_down);
}
cairo_set_source_u32(cairo, swaynag->type->border);
cairo_rectangle(cairo, swaynag->details.x, swaynag->details.y,
swaynag->details.width, swaynag->details.height);
cairo_fill(cairo);
cairo_move_to(cairo, swaynag->details.x + padding,
swaynag->details.y + padding);
cairo_set_source_u32(cairo, swaynag->type->text);
pango_cairo_show_layout(cairo, layout);
g_object_unref(layout);
return ideal_height / swaynag->scale;
}
static void
marlin_text_renderer_get_size (GtkCellRenderer *cell,
GtkWidget *widget,
const GdkRectangle *cell_area,
gint *x_offset,
gint *y_offset,
gint *width,
gint *height)
{
MarlinTextRenderer *text_renderer = MARLIN_TEXT_RENDERER (cell);
gint text_length;
gint text_width;
gint text_height;
gint xpad, ypad;
/* setup the new widget */
marlin_text_renderer_set_widget (text_renderer, widget);
gfloat xalign, yalign;
gtk_cell_renderer_get_alignment (cell, &xalign, &yalign);
/* we can guess the dimensions if we don't wrap */
if (text_renderer->wrap_width < 0)
{
/* determine the text_length in characters */
text_length = g_utf8_strlen (text_renderer->text, -1);
/* the approximation is usually 1-2 chars wrong, so wth */
text_length += 2;
/* calculate the appromixate text width/height */
text_width = text_renderer->char_width * text_length;
text_height = text_renderer->char_height;
}
else
{
/* calculate the real text dimension */
pango_layout_set_ellipsize (text_renderer->layout, PANGO_ELLIPSIZE_END);
pango_layout_set_height (text_renderer->layout, -3);
pango_layout_set_width (text_renderer->layout, text_renderer->wrap_width * PANGO_SCALE);
pango_layout_set_wrap (text_renderer->layout, text_renderer->wrap_mode);
pango_layout_set_text (text_renderer->layout, text_renderer->text, -1);
if (xalign == 0.5f)
pango_layout_set_alignment (text_renderer->layout, PANGO_ALIGN_CENTER);
pango_layout_get_pixel_size (text_renderer->layout, &text_width, &text_height);
}
/* if we have to follow the state manually, we'll need
* to reserve some space to render the indicator to.
*/
if (text_renderer->follow_state)
{
text_width += 2 * text_renderer->focus_width;
text_height += 2 * text_renderer->focus_width;
}
gtk_cell_renderer_get_padding (cell, &xpad, &ypad);
/* update width/height */
if (G_LIKELY (width != NULL))
*width = text_width + 2 * xpad;
if (G_LIKELY (height != NULL))
*height = text_height + 2 * ypad;
/* update the x/y offsets */
if (G_LIKELY (cell_area != NULL))
{
/*gfloat xalign, yalign;
gtk_cell_renderer_get_alignment (cell, &xalign, &yalign);*/
if (G_LIKELY (x_offset != NULL))
{
*x_offset = ((gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL) ?
(1.0 - xalign) : xalign) *
(cell_area->width - text_width - (2 * xpad));
*x_offset = MAX (*x_offset, 0);
}
if (G_LIKELY (y_offset != NULL))
{
*y_offset = yalign * (cell_area->height - text_height - (2 * ypad));
*y_offset = MAX (*y_offset, 0);
}
}
}
