Add native drawing for Entry and Spinbox widgets.

1 files changed, 328 insertions, 0 deletions

diff --git a/macosx/tkMacOSXEntry.c b/macosx/tkMacOSXEntry.c
new file mode 100644
index 0000000..afe52a7
--- /dev/null
+++ b/macosx/tkMacOSXEntry.c
@@ -0,0 +1,328 @@
+/*
+ * tkMacOSXEntry.c --
+ *
+ *      This file implements functions that decode & handle keyboard events
+ *      on MacOS X.
+ *
+ *      Copyright 2001, Apple Computer, Inc.
+ *
+ *      The following terms apply to all files originating from Apple
+ *      Computer, Inc. ("Apple") and associated with the software
+ *      unless explicitly disclaimed in individual files.
+ *
+ *
+ *      Apple hereby grants permission to use, copy, modify,
+ *      distribute, and license this software and its documentation
+ *      for any purpose, provided that existing copyright notices are
+ *      retained in all copies and that this notice is included
+ *      verbatim in any distributions. No written agreement, license,
+ *      or royalty fee is required for any of the authorized
+ *      uses. Modifications to this software may be copyrighted by
+ *      their authors and need not follow the licensing terms
+ *      described here, provided that the new terms are clearly
+ *      indicated on the first page of each file where they apply.
+ *
+ *
+ *      IN NO EVENT SHALL APPLE, THE AUTHORS OR DISTRIBUTORS OF THE
+ *      SOFTWARE BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, SPECIAL,
+ *      INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF
+ *      THIS SOFTWARE, ITS DOCUMENTATION, OR ANY DERIVATIVES THEREOF,
+ *      EVEN IF APPLE OR THE AUTHORS HAVE BEEN ADVISED OF THE
+ *      POSSIBILITY OF SUCH DAMAGE.  APPLE, THE AUTHORS AND
+ *      DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES, INCLUDING,
+ *      BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
+ *      FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.  THIS
+ *      SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, AND APPLE,THE
+ *      AUTHORS AND DISTRIBUTORS HAVE NO OBLIGATION TO PROVIDE
+ *      MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ *      GOVERNMENT USE: If you are acquiring this software on behalf
+ *      of the U.S. government, the Government shall have only
+ *      "Restricted Rights" in the software and related documentation
+ *      as defined in the Federal Acquisition Regulations (FARs) in
+ *      Clause 52.227.19 (c) (2).  If you are acquiring the software
+ *      on behalf of the Department of Defense, the software shall be
+ *      classified as "Commercial Computer Software" and the
+ *      Government shall have only "Restricted Rights" as defined in
+ *      Clause 252.227-7013 (c) (1) of DFARs.  Notwithstanding the
+ *      foregoing, the authors grant the U.S. Government and others
+ *      acting in its behalf permission to use and distribute the
+ *      software in accordance with the terms specified in this
+ *      license.
+ */
+
+#include "tk.h"
+#include "tkInt.h"
+#include "tkMacOSXInt.h"
+#include "tkMacOSXDefault.h"
+#include "tkEntry.h"
+
+ThemeButtonKind ComputeIncDecParameters (int height, int *width);
+
+/*
+ *--------------------------------------------------------------
+ *
+ * ComputeIncDecParameters --
+ *
+ *	This procedure figures out which of the kThemeIncDec
+ *      buttons to use.  It also sets width to the width of the
+ *      IncDec button.
+ *
+ * Results:
+ *	The ThemeButtonKind of the button we should use.
+ *
+ * Side effects:
+ *	May draw the entry border into pixmap.
+ *
+ *--------------------------------------------------------------
+ */
+ThemeButtonKind
+ComputeIncDecParameters (int height, int *width)
+{
+    static int version = 0;
+    
+    if (version == 0) {
+        Gestalt(gestaltSystemVersion, (long *) &version);
+    }
+    
+    /* 
+     * The small and mini incDec buttons were introduced in 10.3.
+     */
+     
+    if (version >= 0x1030) {
+        if (height < 11 || height > 28) {
+            *width = 0;
+            return (ThemeButtonKind) 0;
+        }
+        
+        if (height >= 21) {
+            *width = 13;
+            return kThemeIncDecButton;
+        } else if (height >= 18) {
+            *width = 12;
+            return kThemeIncDecButtonSmall;
+        } else {
+            *width = 11;
+            return kThemeIncDecButtonMini;
+        }
+    } else {
+        if (height < 21 || height > 28) {
+            *width = 0;
+            return (ThemeButtonKind) 0;
+        }
+        *width = 13;
+        return kThemeIncDecButton;
+    }
+}
+
+/*
+ *--------------------------------------------------------------
+ *
+ * TkpDrawEntryBorderAndFocus --
+ *
+ *	This procedure redraws the border of an entry window.
+ *      It overrides the generic border drawing code if the 
+ *      entry widget parameters are such that the native widget
+ *      drawing is a good fit.
+ *      This version just returns 1, so platforms that don't
+ *      do special native drawing don't have to implement it.
+ *
+ * Results:
+ *	1 if it has drawn the border, 0 if not.
+ *
+ * Side effects:
+ *	May draw the entry border into pixmap.
+ *
+ *--------------------------------------------------------------
+ */
+int
+TkpDrawEntryBorderAndFocus(Entry *entryPtr, Drawable d, int isSpinbox)
+{
+    Rect bounds;
+    CGrafPtr saveWorld;
+    GDHandle saveDevice;
+    GWorldPtr destPort;
+    GC bgGC;
+    Tk_Window tkwin = entryPtr->tkwin;
+    ThemeDrawState drawState;
+    int oldWidth;
+
+    /* 
+     * I use 6 as the borderwidth.  2 of the 5 go into the actual frame the
+     * 3 are because the Mac OS Entry widgets leave more space around the
+     * Text than Tk does on X11.
+     */
+     
+    if (entryPtr->borderWidth != MAC_OSX_ENTRY_BORDER 
+            || entryPtr->highlightWidth != MAC_OSX_FOCUS_WIDTH
+            ||entryPtr->relief != MAC_OSX_ENTRY_RELEIF) {
+        return 0;
+    }
+    
+    destPort = TkMacOSXGetDrawablePort(d);
+
+    /*
+     * For the spinbox, we have to make the entry part smaller by the size
+     * of the buttons.  We also leave 2 pixels to the left (as per the HIG)
+     * and space for one pixel to the right, 'cause it makes the buttons look
+     * nicer. 
+     */
+     
+    if (isSpinbox) {
+        ThemeButtonKind buttonKind;
+        int incDecWidth;
+        
+        oldWidth = Tk_Width(tkwin);
+        
+        buttonKind = ComputeIncDecParameters(Tk_Height(tkwin) 
+                - 2 * MAC_OSX_FOCUS_WIDTH, &incDecWidth);
+        Tk_Width(tkwin) -= incDecWidth + 1;
+    }
+
+   /*
+    * The focus ring is drawn with an Alpha at the outside
+    * part of the ring, so we have to draw over the edges of the
+    * ring before drawing the focus or the text will peep through.
+    */
+    
+    bgGC = Tk_GCForColor(entryPtr->highlightBgColorPtr, d);
+    TkDrawInsetFocusHighlight(entryPtr->tkwin, bgGC, MAC_OSX_FOCUS_WIDTH, d, 0);
+    
+    GetGWorld(&saveWorld, &saveDevice);
+    SetGWorld(destPort, NULL);
+    
+    /*
+     * Inset the entry Frame by the maximum width of the focus rect, 
+     * which is 3 according to the Carbon docs.
+     */
+     
+    bounds.top = MAC_OSX_FOCUS_WIDTH;
+    bounds.left = MAC_OSX_FOCUS_WIDTH;
+    bounds.right = Tk_Width(tkwin) - MAC_OSX_FOCUS_WIDTH;
+    bounds.bottom = Tk_Height(tkwin) - MAC_OSX_FOCUS_WIDTH;
+    if (entryPtr->state == STATE_DISABLED) {
+        drawState = kThemeStateInactive;
+    } else {
+        drawState = kThemeStateActive;
+    }
+    DrawThemeEditTextFrame(&bounds, drawState);
+    if (entryPtr->flags & GOT_FOCUS) {
+        /* 
+         * Don't call this if we don't have the focus, because then it
+         * erases the focus rect to white, but we've already drawn the
+         * highlightbackground above.  
+         */
+
+        DrawThemeFocusRect(&bounds, (entryPtr->flags & GOT_FOCUS) != 0);
+    }
+    SetGWorld(saveWorld, saveDevice);
+    
+    if (isSpinbox) {
+        Tk_Width(tkwin) = oldWidth;
+    }
+    return 1;
+}
+/*
+ *--------------------------------------------------------------
+ *
+ * TkpDrawSpinboxButtons --
+ *
+ *	This procedure redraws the buttons of an spinbox widget.
+ *      It overrides the generic button drawing code if the 
+ *      spinbox widget parameters are such that the native widget
+ *      drawing is a good fit.
+ *      This version just returns 0, so platforms that don't
+ *      do special native drawing don't have to implement it.
+ *
+ * Results:
+ *	1 if it has drawn the border, 0 if not.
+ *
+ * Side effects:
+ *	May draw the entry border into pixmap.
+ *
+ *--------------------------------------------------------------
+ */
+
+int
+TkpDrawSpinboxButtons(Spinbox *sbPtr, Drawable d)
+{
+    OSStatus err;
+    Rect inBounds;
+    ThemeButtonKind inKind;
+    ThemeButtonDrawInfo inNewInfo;
+    ThemeButtonDrawInfo * inPrevInfo = NULL;
+    ThemeEraseUPP inEraseProc = NULL;
+    ThemeButtonDrawUPP inLabelProc = NULL;
+    UInt32 inUserData = 0;
+    Tk_Window tkwin = sbPtr->entry.tkwin;
+    int height = Tk_Height(tkwin);
+    int buttonHeight = height - 2 * MAC_OSX_FOCUS_WIDTH;
+    int incDecWidth;
+    CGrafPtr saveWorld;
+    GDHandle saveDevice;
+    GWorldPtr destPort;
+    XRectangle rects[1];
+    GC bgGC;
+
+    /* FIXME RAISED really makes more sense */
+    if (sbPtr->buRelief != TK_RELIEF_FLAT) {
+        return 0;
+    }
+    
+    /* 
+     * The actual sizes of the IncDec button are 21 for the normal,
+     * 18 for the small and 15 for the mini.  But the spinbox still
+     * looks okay if the entry is a little bigger than this, so we
+     * give it a little slop.
+     */
+     
+    inKind = ComputeIncDecParameters(buttonHeight, &incDecWidth);
+    if (inKind == (ThemeButtonKind) 0) {
+        return 0;
+    }
+    
+    destPort = TkMacOSXGetDrawablePort(d);
+    GetGWorld(&saveWorld, &saveDevice);
+    SetGWorld(destPort, NULL);
+
+    if (sbPtr->entry.state == STATE_DISABLED) {
+        inNewInfo.state = kThemeStateInactive;
+        inNewInfo.value = kThemeButtonOff;
+    } else if (sbPtr->selElement == SEL_BUTTONUP) {
+        inNewInfo.state = kThemeStatePressedUp;
+        inNewInfo.value = kThemeButtonOn;
+    } else if (sbPtr->selElement == SEL_BUTTONDOWN) {
+        inNewInfo.state = kThemeStatePressedDown;
+        inNewInfo.value = kThemeButtonOn;
+    } else {
+        inNewInfo.state = kThemeStateActive;
+        inNewInfo.value = kThemeButtonOff;
+    }
+    
+    inNewInfo.adornment = kThemeAdornmentNone;
+
+    inBounds.left = Tk_Width(tkwin) - incDecWidth - 1;
+    inBounds.right = Tk_Width(tkwin) - 1;
+    inBounds.top = MAC_OSX_FOCUS_WIDTH;
+    inBounds.bottom = Tk_Height(tkwin) - MAC_OSX_FOCUS_WIDTH;
+    
+    /* We had to make the entry part of the window smaller so that we
+     * wouldn't overdraw the spin buttons with the focus highlight.  SO
+     * now we have to draw the highlightbackground.
+     */
+     
+    bgGC = Tk_GCForColor(sbPtr->entry.highlightBgColorPtr, d);
+    rects[0].x = inBounds.left;
+    rects[0].y = 0;
+    rects[0].width = Tk_Width(tkwin);
+    rects[0].height = Tk_Height(tkwin);
+    XFillRectangles(Tk_Display(tkwin), d, bgGC, rects, 1);
+    
+    err =  DrawThemeButton (&inBounds, inKind, &inNewInfo, inPrevInfo,
+            inEraseProc, inLabelProc, inUserData);
+
+    SetGWorld(saveWorld, saveDevice);
+
+    return 1;
+}
+