GpStatus
pango_DrawString (GpGraphics *graphics, GDIPCONST WCHAR *stringUnicode, int length, GDIPCONST GpFont *font, GDIPCONST RectF *rc,
GDIPCONST GpStringFormat *format, GpBrush *brush)
{
PangoLayout *layout;
RectF box;
/* Setup cairo */
if (brush) {
gdip_brush_setup (graphics, brush);
} else {
cairo_set_source_rgb (graphics->ct, 0., 0., 0.);
}
cairo_save (graphics->ct);
layout = gdip_pango_setup_layout (graphics, stringUnicode, length, font, rc, &box, format, NULL);
if (!layout) {
cairo_restore (graphics->ct);
return OutOfMemory;
}
gdip_cairo_move_to (graphics, rc->X, rc->Y, FALSE, TRUE);
pango_cairo_show_layout (graphics->ct, layout);
g_object_unref (layout);
cairo_restore (graphics->ct);
return Ok;
}
GpStatus
gdip_adjust_arrowcap_draw (GpGraphics *graphics, GpPen *pen, GpCustomLineCap *customCap, float x, float y, float otherend_x, float otherend_y)
{
double angle;
GpAdjustableArrowCap *arrowcap;
float w;
float h;
float penwidth;
if (!graphics || !customCap)
return InvalidParameter;
penwidth = pen->width;
if (penwidth < 2.0) {
/* Seems to be a minimum */
penwidth = 2.0;
}
arrowcap = (GpAdjustableArrowCap *)customCap;
w = arrowcap->width / 2;
h = arrowcap->height;
angle = gdip_custom_linecap_angle (x, y, otherend_x, otherend_y);
cairo_save (graphics->ct);
/* FIXME: handle base_inset (including set/get!) */
cairo_translate (graphics->ct, x, y);
cairo_rotate (graphics->ct, angle);
gdip_cairo_move_to (graphics, 0, 0, TRUE, TRUE);
gdip_cairo_line_to (graphics, -w * penwidth, -h * penwidth, TRUE, TRUE);
gdip_cairo_line_to (graphics, w * penwidth, -h * penwidth, TRUE, TRUE);
gdip_cairo_line_to (graphics, 0, 0, TRUE, TRUE);
if (arrowcap->fill_state) {
/* FIXME: handle middle_inset */
cairo_fill_preserve (graphics->ct);
}
cairo_stroke (graphics->ct);
cairo_restore (graphics->ct);
return Ok;
}
static GpStatus
DrawString (GpGraphics *graphics, GDIPCONST WCHAR *stringUnicode, int length, GDIPCONST GpFont *font,
GDIPCONST RectF *rc_org, GDIPCONST GpStringFormat *fmt, GpBrush *brush,
WCHAR *CleanString, GpStringDetailStruct* StringDetails, GpDrawTextData *data)
{
float CursorX = 0.0; /* Current X position of drawing cursor */
float CursorY = 0.0; /* Current Y position of drawing cursor */
int StringLen = length;
BOOL SetClipping = FALSE;
unsigned long i, j;
int AlignHorz = data->align_horz;
int AlignVert = data->align_vert;
int LineHeight = data->line_height;
int MaxY = data->max_y;
cairo_font_extents_t FontExtent;
RectF rect, *rc = ▭
cairo_font_extents (graphics->ct, &FontExtent);
if (OPTIMIZE_CONVERSION (graphics)) {
rc->X = rc_org->X;
rc->Y = rc_org->Y;
rc->Width = rc_org->Width;
rc->Height = rc_org->Height;
} else {
rc->X = gdip_unitx_convgr (graphics, rc_org->X);
rc->Y = gdip_unity_convgr (graphics, rc_org->Y);
rc->Width = gdip_unitx_convgr (graphics, rc_org->Width);
rc->Height = gdip_unity_convgr (graphics, rc_org->Height);
}
/* Set our clipping rectangle */
if ((rc->Width!=0) && (rc->Height!=0) && ((fmt->formatFlags & StringFormatFlagsNoClip)==0)) {
#ifdef DRAWSTRING_DEBUG
printf("Setting clipping rectangle (%f, %f %fx%f)\n", rc->X, rc->Y, rc->Width, rc->Height);
#endif
/* We do not call cairo_reset_clip because we want to take previous clipping into account */
gdip_cairo_rectangle (graphics, rc->X, rc->Y, rc->Width, rc->Height, TRUE);
cairo_clip (graphics->ct);
SetClipping = TRUE;
}
/* Setup cairo */
if (brush) {
gdip_brush_setup (graphics, (GpBrush *)brush);
} else {
cairo_set_source_rgb (graphics->ct, 0., 0., 0.);
}
for (i=0; i<StringLen; i++) {
if (StringDetails[i].Flags & STRING_DETAIL_LINESTART) {
BYTE *String;
int length = StringDetails[i].LineLen;
int current_line_length = min (length + i, StringLen);
/* To support the LineLimit flag */
if ((StringDetails[i].Flags & STRING_DETAIL_HIDDEN)!=0){
#ifdef DRAWSTRING_DEBUG
printf("Hidding partially visible line\n");
#endif
i=StringLen;
continue;
}
if (length > StringLen - i)
length = StringLen - i;
String = (BYTE*) ucs2_to_utf8 ((const gunichar2 *)(CleanString+i), length);
#ifdef DRAWSTRING_DEBUG
printf("Displaying line >%s< (%d chars)\n", String, length);
#endif
if ((fmt->formatFlags & StringFormatFlagsDirectionVertical)==0) {
CursorX = rc->X + StringDetails[i].PosX;
CursorY = rc->Y + StringDetails[i].PosY + LineHeight;
gdip_cairo_move_to (graphics, CursorX, CursorY, FALSE, TRUE);
cairo_show_text (graphics->ct, (const char *) String);
} else {
CursorY = rc->Y + StringDetails[i].PosX;
CursorX = rc->X + StringDetails[i].PosY;
/* Rotate text for vertical drawing */
cairo_save (graphics->ct);
gdip_cairo_move_to (graphics, CursorX, CursorY, FALSE, TRUE);
cairo_rotate (graphics->ct, PI/2);
cairo_show_text (graphics->ct, (const char *) String);
cairo_restore (graphics->ct);
}
#ifdef DRAWSTRING_DEBUG
printf("Drawing %d chars at %d x %d (width=%f pixels)\n", StringDetails[i].LineLen, (int)CursorX, (int)CursorY, StringDetails[i+StringDetails[i].LineLen-1].PosX);
#endif
GdipFree (String);
if (font->style & (FontStyleUnderline | FontStyleStrikeout)) {
double line_width = cairo_get_line_width (graphics->ct);
/* Calculate the width of the line */
cairo_set_line_width (graphics->ct, 1.0);
j=StringDetails[i+StringDetails[i].LineLen-1].PosX+StringDetails[i+StringDetails[i].LineLen-1].Width;
if (font->style & FontStyleStrikeout) {
if ((fmt->formatFlags & StringFormatFlagsDirectionVertical)==0) {
gdip_cairo_move_to (graphics, (int)(CursorX), (int)(CursorY-FontExtent.descent), FALSE, TRUE);
gdip_cairo_line_to (graphics, (int)(CursorX+j), (int)(CursorY-FontExtent.descent), FALSE, TRUE);
} else {
gdip_cairo_move_to (graphics, (int)(CursorX+FontExtent.descent), (int)(CursorY), FALSE, TRUE);
gdip_cairo_line_to (graphics, (int)(CursorX+FontExtent.descent), (int)(CursorY+j), FALSE, TRUE);
}
}
if (font->style & FontStyleUnderline) {
if ((fmt->formatFlags & StringFormatFlagsDirectionVertical)==0) {
gdip_cairo_move_to (graphics, (int)(CursorX), (int)(CursorY+FontExtent.descent-2), FALSE, TRUE);
gdip_cairo_line_to (graphics, (int)(CursorX+j), (int)(CursorY+FontExtent.descent-2), FALSE, TRUE);
} else {
gdip_cairo_move_to (graphics, (int)(CursorX+FontExtent.descent-2), (int)(CursorY), FALSE, TRUE);
gdip_cairo_line_to (graphics, (int)(CursorX+FontExtent.descent-2), (int)(CursorY+j), FALSE, TRUE);
}
}
cairo_stroke (graphics->ct);
cairo_set_line_width (graphics->ct, line_width);
}
i+=StringDetails[i].LineLen-1;
}
}
/* Handle Hotkey prefix */
if (fmt->hotkeyPrefix==HotkeyPrefixShow && data->has_hotkeys) {
GpStringDetailStruct *CurrentDetail = StringDetails;
for (i=0; i<StringLen; i++) {
if (CurrentDetail->Flags & STRING_DETAIL_HOTKEY) {
if ((fmt->formatFlags & StringFormatFlagsDirectionVertical)==0) {
CursorX = rc->X + StringDetails[i].PosX;
CursorY = rc->Y + StringDetails[i].PosY + LineHeight;
} else {
CursorY = rc->Y + StringDetails[i].PosX;
CursorX = rc->X + StringDetails[i].PosY;
}
if ((fmt->formatFlags & StringFormatFlagsDirectionVertical)==0) {
cairo_set_line_width(graphics->ct, 1);
gdip_cairo_move_to (graphics, (int)(CursorX), (int)(CursorY+FontExtent.descent), FALSE, TRUE);
gdip_cairo_line_to (graphics, (int)(CursorX+CurrentDetail->Width), (int)(CursorY+FontExtent.descent), FALSE, TRUE);
cairo_stroke (graphics->ct);
} else {
gdip_cairo_move_to (graphics, (int)(CursorX-FontExtent.descent), (int)(CursorY), FALSE, TRUE);
gdip_cairo_line_to (graphics, (int)(CursorX-FontExtent.descent), (int)(CursorY+CurrentDetail->Width), FALSE, TRUE);
}
}
CurrentDetail++;
}
}
/* Restore the graphics clipping region */
if (SetClipping)
cairo_SetGraphicsClip (graphics);
return Ok;
}
