1 /* 2 * Copyright 2006-2007, Haiku Inc. All rights reserved. 3 * Distributed under the terms of the MIT License. 4 * 5 * Authors: 6 * Stephan Aßmus <superstippi@gmx.de> 7 */ 8 9 #include "IconObjectListView.h" 10 11 #include <new> 12 #include <stdio.h> 13 #include <string.h> 14 15 #include <Catalog.h> 16 #include <Locale.h> 17 18 #include "CommandStack.h" 19 #include "CommonPropertyIDs.h" 20 #include "IconObject.h" 21 #include "Property.h" 22 #include "PropertyItemView.h" 23 #include "PropertyObject.h" 24 #include "Selection.h" 25 #include "SetPropertiesCommand.h" 26 27 28 #undef B_TRANSLATION_CONTEXT 29 #define B_TRANSLATION_CONTEXT "Icon-O-Matic-PropertiesList" 30 31 32 using std::nothrow; 33 34 // constructor 35 IconObjectListView::IconObjectListView() 36 : PropertyListView(), 37 38 fSelection(NULL), 39 fCommandStack(NULL), 40 fObject(NULL), 41 fIgnoreObjectChange(false) 42 { 43 } 44 45 // destructor 46 IconObjectListView::~IconObjectListView() 47 { 48 SetSelection(NULL); 49 _SetObject(NULL); 50 } 51 52 // Draw 53 void 54 IconObjectListView::Draw(BRect updateRect) 55 { 56 PropertyListView::Draw(updateRect); 57 58 if (fObject) 59 return; 60 61 // display helpful messages 62 const char* message1 = B_TRANSLATE_CONTEXT( 63 "Click on an object in", "Empty property list - 1st line"); 64 const char* message2 = B_TRANSLATE_CONTEXT( 65 "any of the other lists to", "Empty property list - 2nd line"); 66 const char* message3 = B_TRANSLATE_CONTEXT( 67 "edit it's properties here.", "Empty property list - 3rd line"); 68 69 SetHighColor(tint_color(LowColor(), B_DARKEN_2_TINT)); 70 font_height fh; 71 GetFontHeight(&fh); 72 BRect b(Bounds()); 73 74 BPoint middle; 75 float textHeight = (fh.ascent + fh.descent) * 1.5; 76 middle.y = (b.top + b.bottom) / 2.0 - textHeight; 77 middle.x = (b.left + b.right - StringWidth(message1)) / 2.0; 78 DrawString(message1, middle); 79 80 middle.y += textHeight; 81 middle.x = (b.left + b.right - StringWidth(message2)) / 2.0; 82 DrawString(message2, middle); 83 84 middle.y += textHeight; 85 middle.x = (b.left + b.right - StringWidth(message3)) / 2.0; 86 DrawString(message3, middle); 87 } 88 89 // PropertyChanged 90 void 91 IconObjectListView::PropertyChanged(const Property* previous, 92 const Property* current) 93 { 94 if (!fCommandStack || !fObject) 95 return; 96 97 PropertyObject* oldObject = new (nothrow) PropertyObject(); 98 if (oldObject) 99 oldObject->AddProperty(previous->Clone()); 100 101 PropertyObject* newObject = new (nothrow) PropertyObject(); 102 if (newObject) 103 newObject->AddProperty(current->Clone()); 104 105 IconObject** objects = new (nothrow) IconObject*[1]; 106 if (objects) 107 objects[0] = fObject; 108 109 Command* command = new (nothrow) SetPropertiesCommand(objects, 1, 110 oldObject, 111 newObject); 112 fIgnoreObjectChange = true; 113 fCommandStack->Perform(command); 114 fIgnoreObjectChange = false; 115 } 116 117 // PasteProperties 118 void 119 IconObjectListView::PasteProperties(const PropertyObject* object) 120 { 121 // TODO: command for this 122 if (fObject) 123 fObject->SetToPropertyObject(object); 124 125 PropertyListView::PasteProperties(object); 126 } 127 128 // IsEditingMultipleObjects 129 bool 130 IconObjectListView::IsEditingMultipleObjects() 131 { 132 return false; 133 } 134 135 // #pragma mark - 136 137 // ObjectChanged 138 void 139 IconObjectListView::ObjectChanged(const Observable* object) 140 { 141 if (object == fSelection) { 142 Selectable* selected = fSelection->SelectableAt(0); 143 _SetObject(dynamic_cast<IconObject*>(selected)); 144 } 145 146 if (object == fObject/* && !fIgnoreObjectChange*/) { 147 //printf("IconObjectListView::ObjectChanged(fObject)\n"); 148 SetTo(fObject->MakePropertyObject()); 149 } 150 } 151 152 // #pragma mark - 153 154 // SetSelection 155 void 156 IconObjectListView::SetSelection(Selection* selection) 157 { 158 if (fSelection == selection) 159 return; 160 161 if (fSelection) 162 fSelection->RemoveObserver(this); 163 164 fSelection = selection; 165 166 if (fSelection) 167 fSelection->AddObserver(this); 168 } 169 170 // SetCommandStack 171 void 172 IconObjectListView::SetCommandStack(CommandStack* stack) 173 { 174 fCommandStack = stack; 175 } 176 177 // FocusNameProperty 178 void 179 IconObjectListView::FocusNameProperty() 180 { 181 if (fObject == NULL) 182 return; 183 184 int32 count = _CountItems(); 185 for (int32 i = 0; i < count; i++) { 186 PropertyItemView* item = _ItemAt(i); 187 Property* property = item->GetProperty(); 188 if (property != NULL && property->Identifier() == PROPERTY_NAME) { 189 item->MakeFocus(true); 190 break; 191 } 192 } 193 } 194 195 196 // #pragma mark - 197 198 // _SetObject 199 void 200 IconObjectListView::_SetObject(IconObject* object) 201 { 202 if (fObject == object) 203 return; 204 205 if (fObject) { 206 fObject->RemoveObserver(this); 207 fObject->Release(); 208 } 209 210 fObject = object; 211 PropertyObject* propertyObject = NULL; 212 213 if (fObject) { 214 fObject->Acquire(); 215 fObject->AddObserver(this); 216 propertyObject = fObject->MakePropertyObject(); 217 } 218 219 SetTo(propertyObject); 220 } 221 222