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- /*
- File: DrawUnicodeString.h
-
- Description:
- Routines for drawing unicode strings using ATSUI.
-
- Copyright:
- © Copyright 2001 Apple Computer, Inc. All rights reserved.
-
- Disclaimer:
- IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc.
- ("Apple") in consideration of your agreement to the following terms, and your
- use, installation, modification or redistribution of this Apple software
- constitutes acceptance of these terms. If you do not agree with these terms,
- please do not use, install, modify or redistribute this Apple software.
-
- In consideration of your agreement to abide by the following terms, and subject
- to these terms, Apple grants you a personal, non-exclusive license, under Apple’s
- copyrights in this original Apple software (the "Apple Software"), to use,
- reproduce, modify and redistribute the Apple Software, with or without
- modifications, in source and/or binary forms; provided that if you redistribute
- the Apple Software in its entirety and without modifications, you must retain
- this notice and the following text and disclaimers in all such redistributions of
- the Apple Software. Neither the name, trademarks, service marks or logos of
- Apple Computer, Inc. may be used to endorse or promote products derived from the
- Apple Software without specific prior written permission from Apple. Except as
- expressly stated in this notice, no other rights or licenses, express or implied,
- are granted by Apple herein, including but not limited to any patent rights that
- may be infringed by your derivative works or by other works in which the Apple
- Software may be incorporated.
-
- The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO
- WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
- WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
- COMBINATION WITH YOUR PRODUCTS.
-
- IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
- CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
- GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
- OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT
- (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN
- ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
- Change History (most recent first):
- Wed, Feb 16, 2001 -- created
- Wed, Apr 02, 2001 -- added unicode only routines
- */
-
- #ifndef __DRAWCFSTRING__
- #define __DRAWCFSTRING__
-
-
- #if TARGET_API_MAC_CARBON
-
- #ifdef __APPLE_CC__
- #include <Carbon/Carbon.h>
- #else
- #include <Carbon.h>
- #endif
-
- #else
-
- #include <Types.h>
- #include <ATSUnicode.h>
- #include <Appearance.h>
- #include <FixMath.h>
-
- #endif
-
- #ifdef __cplusplus
- extern "C" {
- #endif
-
-
- /* MakeThemeATSUIStyle creates a simple ATSUI style record that
- based on the current theme fond that can be used in calls to the
- RenderUnicodeString and MeasureUnicodeString routines. The
- style record created is based on the font specified in the themeFontID
- parameter. */
- OSStatus MakeThemeATSUIStyle(ThemeFontID themeFontID, ATSUStyle *theStyle);
-
- /* MakeSimpleATSUIStyle creates a simple ATSUI style record that
- can be used in calls to the RenderUnicodeString and MeasureUnicodeString
- routine. The ATSUI style record will be constructed using the indicated font,
- size, style and colour. */
- OSStatus MakeSimpleATSUIStyle(StringPtr fontName, short fontSize, short qdStyle,
- RGBColor *fontColor, ATSUStyle *theStyle);
-
- /* RenderUnicodeString renders a CFString at (h, v) in the current grafport
- using ATSUI using the style specified in the atsui style record. If maxwidth
- is non-zero, then the text will be wordwrapped in such a way that it will
- not exceed the width when drawn. */
- OSStatus RenderUnicodeString(ConstUniCharArrayPtr iText, UniCharCount iTextLength,
- ATSUStyle theStyle, short h, short v, short maxwidth);
-
-
- /* MeasureUnicodeString returns a rectangle where the CFStringRef would
- be drawn if it were drawn at location (0,0) -- just like QDTextBounds. if
- maxwidth is non-zero, then the text will be wordwrapped in such a way
- that it will not exceed the width when drawn. */
- OSStatus MeasureUnicodeString(ConstUniCharArrayPtr iText,
- UniCharCount iTextLength, ATSUStyle theStyle, short maxwidth, Rect *bounds);
-
-
- #if TARGET_API_MAC_CARBON
-
- /* carbon routines */
-
- /* extracts the Unicode data from the CFString and
- calls RenderUnicodeString. */
- OSStatus RenderCFString(CFStringRef theString, ATSUStyle theStyle,
- short h, short v, short maxwidth);
-
-
- /* MeasureCFString extracts the Unicode data from the
- CFString and calls MeasureUnicodeString. */
- OSStatus MeasureCFString(CFStringRef theString, ATSUStyle theStyle,
- short maxwidth, Rect *bounds);
-
- #endif
-
-
- #ifdef __cplusplus
- }
- #endif
-
- #endif
-
-
- /* Tips for optimal performance:
-
- (A) If at all possible, do not call the routine MakeThemeATSUIStyle or the routine
- MakeSimpleATSUIStyle more than once to create the styles your application
- requires. cache the style records created among your application's globals
- and use them whenever you need to draw text.
-
- (B) Set maxwidth to zero if you know all your text should reside on one
- line.
-
- The routines RenderUnicodeString, MeasureUnicodeString, RenderCFString,
- and MeasureCFString include a maxwidth parameter. If you look at the source
- you will notice that when this parameter is non-zero, a separate code path
- is used that attempts to calculate line breaks at the indicated width. This
- takes extra time to do. If you know there are no line breaks, don't ask
- for them to be calculated.
-
- */