1 /* 2 * Copyright 2001-2008, Haiku Inc. All rights reserved. 3 * Distributed under the terms of the MIT License. 4 * 5 * Authors: 6 * Frans van Nispen (xlr8@tref.nl) 7 * Marc Flerackers (mflerackers@androme.be) 8 */ 9 10 11 #include "TextInput.h" 12 13 #include <stdio.h> 14 #include <stdlib.h> 15 #include <string.h> 16 17 #include <ControlLook.h> 18 #include <InterfaceDefs.h> 19 #include <LayoutUtils.h> 20 #include <Message.h> 21 #include <String.h> 22 #include <TextControl.h> 23 #include <TextView.h> 24 #include <Window.h> 25 26 27 namespace BPrivate { 28 29 30 _BTextInput_::_BTextInput_(BRect frame, BRect textRect, uint32 resizeMask, 31 uint32 flags) 32 : BTextView(frame, "_input_", textRect, resizeMask, flags), 33 fPreviousText(NULL) 34 { 35 MakeResizable(true); 36 } 37 38 39 _BTextInput_::_BTextInput_(BMessage* archive) 40 : BTextView(archive), 41 fPreviousText(NULL) 42 { 43 MakeResizable(true); 44 } 45 46 47 _BTextInput_::~_BTextInput_() 48 { 49 free(fPreviousText); 50 } 51 52 53 BArchivable* 54 _BTextInput_::Instantiate(BMessage* archive) 55 { 56 if (validate_instantiation(archive, "_BTextInput_")) 57 return new _BTextInput_(archive); 58 59 return NULL; 60 } 61 62 63 status_t 64 _BTextInput_::Archive(BMessage* data, bool deep) const 65 { 66 return BTextView::Archive(data, true); 67 } 68 69 70 void 71 _BTextInput_::MouseDown(BPoint where) 72 { 73 if (!IsFocus()) { 74 MakeFocus(true); 75 return; 76 } 77 78 // only pass through to base class if we already have focus 79 BTextView::MouseDown(where); 80 } 81 82 83 void 84 _BTextInput_::FrameResized(float width, float height) 85 { 86 BTextView::FrameResized(width, height); 87 88 AlignTextRect(); 89 } 90 91 92 void 93 _BTextInput_::KeyDown(const char* bytes, int32 numBytes) 94 { 95 switch (*bytes) { 96 case B_ENTER: 97 { 98 if (!TextControl()->IsEnabled()) 99 break; 100 101 if (fPreviousText == NULL || strcmp(Text(), fPreviousText) != 0) { 102 TextControl()->Invoke(); 103 free(fPreviousText); 104 fPreviousText = strdup(Text()); 105 } 106 107 SelectAll(); 108 break; 109 } 110 111 case B_TAB: 112 BView::KeyDown(bytes, numBytes); 113 break; 114 115 default: 116 BTextView::KeyDown(bytes, numBytes); 117 break; 118 } 119 } 120 121 void 122 _BTextInput_::MakeFocus(bool state) 123 { 124 if (state == IsFocus()) 125 return; 126 127 BTextView::MakeFocus(state); 128 129 if (state) { 130 SetInitialText(); 131 SelectAll(); 132 } else { 133 if (strcmp(Text(), fPreviousText) != 0) 134 TextControl()->Invoke(); 135 136 free(fPreviousText); 137 fPreviousText = NULL; 138 } 139 140 // if (Window()) { 141 // TODO: why do we have to invalidate here? 142 // I'm leaving this in, but it looks suspicious... :-) 143 // Invalidate(Bounds()); 144 if (BTextControl* parent = dynamic_cast<BTextControl*>(Parent())) { 145 BRect frame = Frame(); 146 frame.InsetBy(-1.0, -1.0); 147 parent->Invalidate(frame); 148 } 149 // } 150 } 151 152 153 BSize 154 _BTextInput_::MinSize() 155 { 156 BSize min; 157 min.height = ceilf(LineHeight(0) + 2.0); 158 // we always add at least one pixel vertical inset top/bottom for 159 // the text rect. 160 min.width = min.height * 3; 161 return BLayoutUtils::ComposeSize(ExplicitMinSize(), min); 162 } 163 164 165 void 166 _BTextInput_::AlignTextRect() 167 { 168 // the label font could require the control to be higher than 169 // necessary for the text view, we compensate this by layouting 170 // the text rect to be in the middle, normally this means there 171 // is one pixel spacing on each side 172 BRect textRect(Bounds()); 173 textRect.left = 0.0; 174 float vInset = max_c(1, floorf((textRect.Height() - LineHeight(0)) / 2.0)); 175 float hInset = 2; 176 177 if (be_control_look) 178 hInset = be_control_look->DefaultLabelSpacing(); 179 180 textRect.InsetBy(hInset, vInset); 181 SetTextRect(textRect); 182 } 183 184 185 void 186 _BTextInput_::SetInitialText() 187 { 188 free(fPreviousText); 189 fPreviousText = NULL; 190 191 if (Text()) 192 fPreviousText = strdup(Text()); 193 } 194 195 196 void 197 _BTextInput_::Paste(BClipboard* clipboard) 198 { 199 BTextView::Paste(clipboard); 200 Invalidate(); 201 } 202 203 204 void 205 _BTextInput_::InsertText(const char* inText, int32 inLength, 206 int32 inOffset, const text_run_array* inRuns) 207 { 208 // Filter all line breaks, note that inText is not terminated. 209 if (inLength == 1) { 210 if (*inText == '\n' || *inText == '\r') 211 BTextView::InsertText(" ", 1, inOffset, inRuns); 212 else 213 BTextView::InsertText(inText, 1, inOffset, inRuns); 214 } else { 215 BString filteredText(inText, inLength); 216 filteredText.ReplaceAll('\n', ' '); 217 filteredText.ReplaceAll('\r', ' '); 218 BTextView::InsertText(filteredText.String(), inLength, inOffset, 219 inRuns); 220 } 221 222 TextControl()->InvokeNotify(TextControl()->ModificationMessage(), 223 B_CONTROL_MODIFIED); 224 } 225 226 227 void 228 _BTextInput_::DeleteText(int32 fromOffset, int32 toOffset) 229 { 230 BTextView::DeleteText(fromOffset, toOffset); 231 232 TextControl()->InvokeNotify(TextControl()->ModificationMessage(), 233 B_CONTROL_MODIFIED); 234 } 235 236 237 BTextControl* 238 _BTextInput_::TextControl() 239 { 240 BTextControl* textControl = NULL; 241 242 if (Parent()) 243 textControl = dynamic_cast<BTextControl*>(Parent()); 244 245 if (!textControl) 246 debugger("_BTextInput_ should have a BTextControl as parent"); 247 248 return textControl; 249 } 250 251 252 } // namespace BPrivate 253 254