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Java > Open Source Codes > org > eclipse > swt > internal > theme > DrawData


1 /*******************************************************************************
2  * Copyright (c) 2000, 2006 IBM Corporation and others.
3  * All rights reserved. This program and the accompanying materials
4  * are made available under the terms of the Eclipse Public License v1.0
5  * which accompanies this distribution, and is available at
6  * http://www.eclipse.org/legal/epl-v10.html
7  *
8  * Contributors:
9  * IBM Corporation - initial API and implementation
10  *******************************************************************************/
11 package org.eclipse.swt.internal.theme;
12
13 import org.eclipse.swt.*;
14 import org.eclipse.swt.graphics.*;
15 import org.eclipse.swt.internal.win32.*;
16
17 public class DrawData {
18     public int style;
19     public int[] state;
20     public Rectangle clientArea;
21
22     /** Part states */
23     public static final int SELECTED = 1 << 1;
24     public static final int FOCUSED = 1 << 2;
25     public static final int PRESSED = 1 << 3;
26     public static final int ACTIVE = 1 << 4;
27     public static final int DISABLED = 1 << 5;
28     public static final int HOT = 1 << 6;
29     public static final int DEFAULTED = 1 << 7;
30     public static final int GRAYED = 1 << 8;
31     
32     /** Text and Image drawing flags */
33     public static final int DRAW_LEFT = 1 << 4;
34     public static final int DRAW_TOP = 1 << 5;
35     public static final int DRAW_RIGHT = 1 << 6;
36     public static final int DRAW_BOTTOM = 1 << 7;
37     public static final int DRAW_HCENTER = 1 << 8;
38     public static final int DRAW_VCENTER = 1 << 9;
39
40     /** Widget parts */
41     public static final int WIDGET_NOWHERE = -1;
42     public static final int WIDGET_WHOLE = 0;
43
44     /** Scrollbar parts */
45     public static final int SCROLLBAR_UP_ARROW = 1;
46     public static final int SCROLLBAR_DOWN_ARROW = 2;
47     public static final int SCROLLBAR_LEFT_ARROW = SCROLLBAR_UP_ARROW;
48     public static final int SCROLLBAR_RIGHT_ARROW = SCROLLBAR_DOWN_ARROW;
49     public static final int SCROLLBAR_UP_TRACK = 3;
50     public static final int SCROLLBAR_DOWN_TRACK = 4;
51     public static final int SCROLLBAR_LEFT_TRACK = SCROLLBAR_UP_TRACK;
52     public static final int SCROLLBAR_RIGHT_TRACK = SCROLLBAR_DOWN_TRACK;
53     public static final int SCROLLBAR_THUMB = 5;
54     
55     /** Scale parts */
56     public static final int SCALE_UP_TRACK = 1;
57     public static final int SCALE_LEFT_TRACK = SCALE_UP_TRACK;
58     public static final int SCALE_DOWN_TRACK = 2;
59     public static final int SCALE_RIGHT_TRACK = SCALE_DOWN_TRACK;
60     public static final int SCALE_THUMB = 3;
61     
62     /** ToolItem parts */
63     public static final int TOOLITEM_ARROW = 1;
64     
65     /** Combo parts */
66     public static final int COMBO_ARROW = 1;
67     
68     static final char [] EDIT = new char [] {'E', 'D', 'I', 'T', 0};
69     static final char [] COMBOBOX = new char [] {'C', 'O', 'M', 'B', 'O', 'B', 'O', 'X', 0};
70     static final char [] BUTTON = new char [] {'B', 'U', 'T', 'T', 'O', 'N', 0};
71     static final char [] PROGRESS = new char [] {'P', 'R', 'O', 'G', 'R', 'E', 'S', 'S', 0};
72     static final char [] SCROLLBAR = new char [] {'S', 'C', 'R', 'O', 'L', 'L', 'B', 'A', 'R', 0};
73     static final char [] TAB = new char [] {'T', 'A', 'B', 0};
74     static final char [] TRACKBAR = new char [] {'T', 'R', 'A', 'C', 'K', 'B', 'A', 'R', 0};
75     static final char [] TOOLBAR = new char [] {'T', 'O', 'O', 'L', 'B', 'A', 'R', 0};
76     static final char [] TREEVIEW = new char [] {'T', 'R', 'E', 'E', 'V', 'I', 'E', 'W', 0};
77
78 public DrawData() {
79     state = new int[1];
80 }
81
82 Rectangle computeTrim(Theme theme, GC gc) {
83     return new Rectangle(clientArea.x, clientArea.y, clientArea.width, clientArea.height);
84 }
85
86 void draw(Theme theme, GC gc, Rectangle bounds) {
87     
88 }
89
90 void drawImage(Theme theme, Image image, GC gc, Rectangle bounds) {
91     if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) {
92 // int hTheme = OS.OpenThemeData(0, getClassId());
93 // RECT rect = new RECT ();
94 // rect.left = bounds.x;
95 // rect.right = bounds.x + bounds.width;
96 // rect.top = bounds.y;
97 // rect.bottom = bounds.y + bounds.height;
98 // //TODO - remove reference to widgets.
99 // ImageList imageList = new ImageList(0);
100 // int imageIndex = imageList.add(image);
101 // int[] part = getPartId(DrawData.WIDGET_WHOLE);
102 // OS.DrawThemeIcon(hTheme, gc.handle, part[0], part[1], rect, imageList.getHandle(), imageIndex);
103 // imageList.dispose();
104 // OS.CloseThemeData(hTheme);
105 Rectangle rect = image.getBounds();
106         gc.drawImage(image, 0, 0, rect.width, rect.height, bounds.x, bounds.y, bounds.width, bounds.height);
107     }
108 }
109
110 void drawText(Theme theme, String JavaDoc text, int flags, GC gc, Rectangle bounds) {
111     if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) {
112         int hTheme = OS.OpenThemeData(0, getClassId());
113         char[] chars = new char[text.length()];
114         text.getChars(0, chars.length, chars, 0);
115         int textFlags = OS.DT_SINGLELINE;
116         if ((flags & DrawData.DRAW_LEFT) != 0) textFlags |= OS.DT_LEFT;
117         if ((flags & DrawData.DRAW_HCENTER) != 0) textFlags |= OS.DT_CENTER;
118         if ((flags & DrawData.DRAW_RIGHT) != 0) textFlags |= OS.DT_RIGHT;
119         if ((flags & DrawData.DRAW_TOP) != 0) textFlags |= OS.DT_TOP;
120         if ((flags & DrawData.DRAW_BOTTOM) != 0) textFlags |= OS.DT_BOTTOM;
121         if ((flags & DrawData.DRAW_VCENTER) != 0) textFlags |= OS.DT_VCENTER;
122         RECT rect = new RECT ();
123         rect.left = bounds.x;
124         rect.right = bounds.x + bounds.width;
125         rect.top = bounds.y;
126         rect.bottom = bounds.y + bounds.height;
127         int[] part = getPartId(DrawData.WIDGET_WHOLE);
128         int iPartId = part[0];
129         int iStateId = part[1];
130         OS.DrawThemeText(hTheme, gc.handle, iPartId, iStateId, chars, chars.length, textFlags, 0, rect);
131         OS.CloseThemeData(hTheme);
132     }
133 }
134
135 char[] getClassId() {
136     return BUTTON;
137 }
138
139 int[] getPartId(int part) {
140     return new int[]{0, 0};
141 }
142
143 Rectangle getBounds(int part, Rectangle bounds) {
144     return new Rectangle(bounds.x, bounds.y, bounds.width, bounds.height);
145 }
146
147 int hit(Theme theme, Point position, Rectangle bounds) {
148     return -1;
149 }
150
151 Rectangle measureText(Theme theme, String JavaDoc text, int flags, GC gc, Rectangle bounds) {
152     if (!(OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ())) return new Rectangle(0, 0, 0, 0);
153     int hTheme = OS.OpenThemeData(0, getClassId());
154     char[] chars = new char[text.length()];
155     text.getChars(0, chars.length, chars, 0);
156     //TODO - constant for VCENTER and flags
157 int textFlags = 0;//OS.DT_VCENTER | OS.DT_SINGLELINE | OS.DT_CALCRECT;
158 if ((style & SWT.LEFT) != 0) textFlags |= OS.DT_LEFT;
159     if ((style & SWT.CENTER) != 0) textFlags |= OS.DT_CENTER;
160     if ((style & SWT.RIGHT) != 0) textFlags |= OS.DT_RIGHT;
161     RECT extent = new RECT();
162     RECT rect = null;
163     if (bounds != null) {
164         rect = new RECT();
165         rect.left = bounds.x;
166         rect.right = bounds.x + bounds.width;
167         rect.top = bounds.y;
168         rect.bottom = bounds.y + bounds.height;
169     }
170     int[] part = getPartId(DrawData.WIDGET_WHOLE);
171     int iPartId = part[0];
172     int iStateId = part[1];
173     OS.GetThemeTextExtent(hTheme, gc.handle, iPartId, iStateId, chars, chars.length, textFlags, rect, extent);
174     OS.CloseThemeData(hTheme);
175     return new Rectangle(extent.left, extent.top, extent.right - extent.left, extent.bottom - extent.top);
176 }
177
178 }
179
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