1 /* 2 * Copyright 2003-2009, Haiku, Inc. All rights reserved. 3 * Distributed under the terms of the MIT license. 4 * 5 * Authors: 6 * Michael Wilber 7 * Axel Dörfler, axeld@pinc-software.de 8 */ 9 10 11 #include "PNGView.h" 12 #include "PNGTranslator.h" 13 14 #include <Alert.h> 15 #include <MenuField.h> 16 #include <MenuItem.h> 17 #include <PopUpMenu.h> 18 #include <StringView.h> 19 #include <TextView.h> 20 21 #include <stdio.h> 22 #include <png.h> 23 24 25 PNGView::PNGView(const BRect &frame, const char *name, uint32 resizeMode, 26 uint32 flags, TranslatorSettings *settings) 27 : BView(frame, name, resizeMode, flags | B_FRAME_EVENTS) 28 { 29 fSettings = settings; 30 SetViewColor(ui_color(B_PANEL_BACKGROUND_COLOR)); 31 32 font_height fontHeight; 33 be_bold_font->GetHeight(&fontHeight); 34 float height = fontHeight.descent + fontHeight.ascent + fontHeight.leading; 35 36 BRect rect(10, 10, 200, 10 + height); 37 BStringView *stringView = new BStringView(rect, "title", "PNG image translator"); 38 stringView->SetFont(be_bold_font); 39 stringView->ResizeToPreferred(); 40 AddChild(stringView); 41 42 float maxWidth = stringView->Bounds().Width(); 43 44 rect.OffsetBy(0, height + 10); 45 char version[256]; 46 snprintf(version, sizeof(version), "Version %d.%d.%d, %s", 47 int(B_TRANSLATION_MAJOR_VERSION(PNG_TRANSLATOR_VERSION)), 48 int(B_TRANSLATION_MINOR_VERSION(PNG_TRANSLATOR_VERSION)), 49 int(B_TRANSLATION_REVISION_VERSION(PNG_TRANSLATOR_VERSION)), 50 __DATE__); 51 stringView = new BStringView(rect, "version", version); 52 stringView->ResizeToPreferred(); 53 AddChild(stringView); 54 55 if (stringView->Bounds().Width() > maxWidth) 56 maxWidth = stringView->Bounds().Width(); 57 58 GetFontHeight(&fontHeight); 59 height = fontHeight.descent + fontHeight.ascent + fontHeight.leading; 60 61 rect.OffsetBy(0, height + 5); 62 stringView = new BStringView(rect, "Copyright", B_UTF8_COPYRIGHT "2003-2006 Haiku Inc."); 63 stringView->ResizeToPreferred(); 64 AddChild(stringView); 65 66 // setup PNG interlace options 67 68 fInterlaceMenu = new BPopUpMenu("Interlace Option"); 69 BMenuItem* item = new BMenuItem("None", _InterlaceMessage(PNG_INTERLACE_NONE)); 70 if (fSettings->SetGetInt32(PNG_SETTING_INTERLACE) == PNG_INTERLACE_NONE) 71 item->SetMarked(true); 72 fInterlaceMenu->AddItem(item); 73 74 item = new BMenuItem("Adam7", _InterlaceMessage(PNG_INTERLACE_ADAM7)); 75 if (fSettings->SetGetInt32(PNG_SETTING_INTERLACE) == PNG_INTERLACE_ADAM7) 76 item->SetMarked(true); 77 fInterlaceMenu->AddItem(item); 78 79 rect.OffsetBy(0, stringView->Frame().Height() + 20.0f); 80 BMenuField* menuField = new BMenuField(rect, "PNG Interlace Menu", 81 "Interlacing type:", fInterlaceMenu); 82 menuField->SetDivider(menuField->StringWidth(menuField->Label()) + 7.0f); 83 menuField->ResizeToPreferred(); 84 AddChild(menuField); 85 86 rect.OffsetBy(0, height + 15); 87 rect.right = Bounds().right; 88 rect.bottom = Bounds().bottom; 89 fCopyrightView = new BTextView(rect, "PNG copyright", rect.OffsetToCopy(B_ORIGIN), 90 B_FOLLOW_ALL, B_WILL_DRAW | B_FRAME_EVENTS); 91 fCopyrightView->SetViewColor(ui_color(B_PANEL_BACKGROUND_COLOR)); 92 fCopyrightView->SetLowColor(fCopyrightView->ViewColor()); 93 fCopyrightView->MakeEditable(false); 94 fCopyrightView->SetText(png_get_copyright(NULL)); 95 96 BFont font; 97 font.SetSize(font.Size() * 0.8); 98 fCopyrightView->SetFontAndColor(&font, B_FONT_SIZE, NULL); 99 AddChild(fCopyrightView); 100 101 if (maxWidth + 20 > Bounds().Width()) 102 ResizeTo(maxWidth + 20, Bounds().Height()); 103 if (Bounds().Height() < rect.top + stringView->Bounds().Height() * 3.0f + 8.0f) 104 ResizeTo(Bounds().Width(), rect.top + height * 3.0f + 8.0f); 105 106 fCopyrightView->SetTextRect(fCopyrightView->Bounds()); 107 } 108 109 110 PNGView::~PNGView() 111 { 112 fSettings->Release(); 113 } 114 115 116 BMessage * 117 PNGView::_InterlaceMessage(int32 kind) 118 { 119 BMessage* message = new BMessage(M_PNG_SET_INTERLACE); 120 message->AddInt32(PNG_SETTING_INTERLACE, kind); 121 122 return message; 123 } 124 125 126 void 127 PNGView::AttachedToWindow() 128 { 129 BView::AttachedToWindow(); 130 131 // set target for interlace options menu items 132 fInterlaceMenu->SetTargetForItems(this); 133 } 134 135 136 void 137 PNGView::FrameResized(float width, float height) 138 { 139 // This works around a flaw of BTextView 140 fCopyrightView->SetTextRect(fCopyrightView->Bounds()); 141 } 142 143 144 void 145 PNGView::MessageReceived(BMessage *message) 146 { 147 if (message->what == M_PNG_SET_INTERLACE) { 148 // change setting for interlace option 149 int32 option; 150 if (message->FindInt32(PNG_SETTING_INTERLACE, &option) == B_OK) { 151 fSettings->SetGetInt32(PNG_SETTING_INTERLACE, &option); 152 fSettings->SaveSettings(); 153 } 154 } else 155 BView::MessageReceived(message); 156 } 157 158