1/*
2 * Copyright 2002-2012, Haiku, Inc. All Rights Reserved.
3 * Distributed under the terms of the MIT License.
4 *
5 * Authors:
6 *		Vlad Slepukhin
7 *		Siarzhuk Zharski
8 */
9
10
11#include "StatusView.h"
12
13#include <stdio.h>
14#include <stdlib.h>
15#include <string.h>
16
17#include <Catalog.h>
18#include <CharacterSet.h>
19#include <CharacterSetRoster.h>
20#include <ControlLook.h>
21#include <MenuItem.h>
22#include <Message.h>
23#include <PopUpMenu.h>
24#include <ScrollView.h>
25#include <StringView.h>
26#include <Window.h>
27
28#include <tracker_private.h>
29#include "DirMenu.h"
30
31#include "Constants.h"
32
33
34const float kHorzSpacing = 5.f;
35#define UTF8_EXPAND_ARROW "\xe2\x96\xbe"
36
37using namespace BPrivate;
38
39
40#undef B_TRANSLATION_CONTEXT
41#define B_TRANSLATION_CONTEXT "StatusView"
42
43
44StatusView::StatusView(BScrollView* scrollView)
45			:
46			BView(BRect(), "statusview",
47				B_FOLLOW_BOTTOM | B_FOLLOW_LEFT, B_WILL_DRAW),
48			fScrollView(scrollView),
49			fPreferredSize(0., 0.),
50			fReadOnly(false),
51			fCanUnlock(false)
52{
53	memset(fCellWidth, 0, sizeof(fCellWidth));
54}
55
56
57StatusView::~StatusView()
58{
59}
60
61
62void
63StatusView::AttachedToWindow()
64{
65	SetFont(be_plain_font);
66	SetFontSize(10.);
67
68	BMessage message(UPDATE_STATUS);
69	message.AddInt32("line", 1);
70	message.AddInt32("column", 1);
71	message.AddString("encoding", "");
72	SetStatus(&message);
73
74	BScrollBar* scrollBar = fScrollView->ScrollBar(B_HORIZONTAL);
75	MoveTo(0., scrollBar->Frame().top);
76
77	rgb_color color = B_TRANSPARENT_COLOR;
78	BView* parent = Parent();
79	if (parent != NULL)
80		color = parent->ViewColor();
81
82	if (color == B_TRANSPARENT_COLOR)
83		color = ui_color(B_PANEL_BACKGROUND_COLOR);
84
85	SetViewColor(color);
86
87	ResizeToPreferred();
88}
89
90
91void
92StatusView::GetPreferredSize(float* _width, float* _height)
93{
94	_ValidatePreferredSize();
95
96	if (_width)
97		*_width = fPreferredSize.width;
98
99	if (_height)
100		*_height = fPreferredSize.height;
101}
102
103
104void
105StatusView::ResizeToPreferred()
106{
107	float width, height;
108	GetPreferredSize(&width, &height);
109
110	if (Bounds().Width() > width)
111		width = Bounds().Width();
112
113	BView::ResizeTo(width, height);
114}
115
116
117void
118StatusView::Draw(BRect updateRect)
119{
120	if (fPreferredSize.width <= 0)
121		return;
122
123	if (be_control_look != NULL) {
124		BRect bounds(Bounds());
125		be_control_look->DrawMenuBarBackground(this,
126			bounds, updateRect,	ViewColor());
127	}
128
129	BRect bounds(Bounds());
130	rgb_color highColor = HighColor();
131	SetHighColor(tint_color(ViewColor(), B_DARKEN_2_TINT));
132	StrokeLine(bounds.LeftTop(), bounds.RightTop());
133
134	float x = bounds.left;
135	for (size_t i = 0; i < kStatusCellCount - 1; i++) {
136		x += fCellWidth[i];
137		StrokeLine(BPoint(x, bounds.top + 3), BPoint(x, bounds.bottom - 3));
138	}
139
140	SetLowColor(ViewColor());
141	SetHighColor(highColor);
142
143	font_height fontHeight;
144	GetFontHeight(&fontHeight);
145
146	x = bounds.left;
147	float y = (bounds.bottom + bounds.top
148		+ ceilf(fontHeight.ascent) - ceilf(fontHeight.descent)) / 2;
149
150	for (size_t i = 0; i < kStatusCellCount; i++) {
151		if (fCellText[i].Length() == 0)
152			continue;
153		DrawString(fCellText[i], BPoint(x + kHorzSpacing, y));
154		x += fCellWidth[i];
155	}
156}
157
158
159void
160StatusView::MouseDown(BPoint where)
161{
162	if (where.x < fCellWidth[kPositionCell]) {
163		_ShowDirMenu();
164		return;
165	}
166
167	if (!fReadOnly || !fCanUnlock)
168		return;
169
170	float left = fCellWidth[kPositionCell] + fCellWidth[kEncodingCell];
171	if (where.x < left)
172		return;
173
174	int32 clicks = 0;
175	BMessage* message = Window()->CurrentMessage();
176	if (message != NULL
177		&& message->FindInt32("clicks", &clicks) == B_OK && clicks > 1)
178			return;
179
180	BPopUpMenu *menu = new BPopUpMenu(B_EMPTY_STRING, false, false);
181	menu->AddItem(new BMenuItem(B_TRANSLATE("Unlock file"),
182					new BMessage(UNLOCK_FILE)));
183	where.x = left;
184	where.y = Bounds().bottom;
185
186	ConvertToScreen(&where);
187	menu->SetTargetForItems(this);
188	menu->Go(where, true, true,	true);
189}
190
191
192void
193StatusView::SetStatus(BMessage* message)
194{
195	int32 line = 0, column = 0;
196	if (B_OK == message->FindInt32("line", &line)
197		&& B_OK == message->FindInt32("column", &column))
198	{
199		char info[256];
200		snprintf(info, sizeof(info),
201				B_TRANSLATE("line %d, column %d"), line, column);
202		fCellText[kPositionCell].SetTo(info);
203	}
204
205	if (B_OK == message->FindString("encoding", &fEncoding)) {
206		// sometime corresponding Int-32 "encoding" attrib is read as string :(
207		if (fEncoding.Length() == 0
208			|| fEncoding.Compare("\xff\xff") == 0
209			|| fEncoding.Compare("UTF-8") == 0)
210		{
211			// do not display default UTF-8 encoding
212			fCellText[kEncodingCell].Truncate(0);
213			fEncoding.Truncate(0);
214		} else {
215			const BCharacterSet* charset
216				= BCharacterSetRoster::FindCharacterSetByName(fEncoding);
217			fCellText[kEncodingCell]
218				= charset != NULL ? charset->GetPrintName() : "";
219		}
220	}
221
222	bool modified = false;
223	fReadOnly = false;
224	fCanUnlock = false;
225	if (B_OK == message->FindBool("modified", &modified) && modified) {
226		fCellText[kFileStateCell] = B_TRANSLATE("Modified");
227	} else if (B_OK == message->FindBool("readOnly", &fReadOnly) && fReadOnly) {
228		fCellText[kFileStateCell] = B_TRANSLATE("Read-only");
229	    if (B_OK == message->FindBool("canUnlock", &fCanUnlock) && fCanUnlock)
230			fCellText[kFileStateCell] << " " UTF8_EXPAND_ARROW;
231	} else
232		fCellText[kFileStateCell].Truncate(0);
233
234	_ValidatePreferredSize();
235	Invalidate();
236}
237
238
239void
240StatusView::SetRef(const entry_ref& ref)
241{
242	fRef = ref;
243}
244
245
246void
247StatusView::_ValidatePreferredSize()
248{
249	float orgWidth = fPreferredSize.width;
250	// width
251	fPreferredSize.width = 0.f;
252	for (size_t i = 0; i < kStatusCellCount; i++) {
253		if (fCellText[i].Length() == 0) {
254			fCellWidth[i] = 0;
255			continue;
256		}
257		float width = ceilf(StringWidth(fCellText[i]));
258		if (width > 0)
259			width += kHorzSpacing * 2;
260		if (width > fCellWidth[i] || i != kPositionCell)
261			fCellWidth[i] = width;
262		fPreferredSize.width += fCellWidth[i];
263	}
264
265	// height
266	font_height fontHeight;
267	GetFontHeight(&fontHeight);
268
269	fPreferredSize.height = ceilf(fontHeight.ascent + fontHeight.descent
270		+ fontHeight.leading);
271
272	if (fPreferredSize.height < B_H_SCROLL_BAR_HEIGHT)
273		fPreferredSize.height = B_H_SCROLL_BAR_HEIGHT;
274
275	float delta = fPreferredSize.width - orgWidth;
276	ResizeBy(delta, 0);
277	BScrollBar* scrollBar = fScrollView->ScrollBar(B_HORIZONTAL);
278	scrollBar->ResizeBy(-delta, 0);
279	scrollBar->MoveBy(delta, 0);
280}
281
282
283void
284StatusView::_ShowDirMenu()
285{
286	BEntry entry;
287	status_t status = entry.SetTo(&fRef);
288
289	if (status != B_OK || !entry.Exists())
290		return;
291
292	BPrivate::BDirMenu* menu = new BDirMenu(NULL,
293		BMessenger(kTrackerSignature), B_REFS_RECEIVED);
294
295	menu->Populate(&entry, Window(), false, false, true, false, true);
296
297	BPoint point = Bounds().LeftBottom();
298	point.y += 3;
299	ConvertToScreen(&point);
300	BRect clickToOpenRect(Bounds());
301	ConvertToScreen(&clickToOpenRect);
302	menu->Go(point, true, true, clickToOpenRect);
303	delete menu;
304}
305
306