Implemented a find panel. It's one application wide panel that will always
target the last activated window. Not yet complete - work in progress. git-svn-id: file:///srv/svn/repos/haiku/trunk/current@6797 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
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/*
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** Copyright 2004, Axel Dörfler, [email protected]. All rights reserved.
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** Distributed under the terms of the OpenBeOS License.
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*/
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#include "FindWindow.h"
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#include "DiskProbe.h"
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#include <Application.h>
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#include <TextView.h>
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#include <MenuField.h>
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#include <PopUpMenu.h>
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#include <MenuItem.h>
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#include <Button.h>
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#include <ScrollView.h>
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#include <CheckBox.h>
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#include <Beep.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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enum find_mode {
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kAsciiMode,
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kHexMode
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};
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static const uint32 kMsgFindMode = 'FMde';
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static const uint32 kMsgStartFind = 'SFnd';
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class FindTextView : public BTextView {
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public:
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FindTextView(BRect frame, const char *name, BRect textRect, uint32 resizeMask);
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virtual void MakeFocus(bool state);
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virtual void TargetedByScrollView(BScrollView *view);
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status_t SetMode(find_mode mode);
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void GetData(BMessage &message);
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virtual void KeyDown(const char *bytes, int32 numBytes);
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protected:
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virtual void InsertText(const char *text, int32 length,
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int32 offset, const text_run_array *runs);
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private:
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BScrollView *fScrollView;
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find_mode fMode;
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};
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//---------------
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FindTextView::FindTextView(BRect frame, const char *name, BRect textRect,
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uint32 resizeMask)
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: BTextView(frame, name, textRect, resizeMask),
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fScrollView(NULL),
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fMode(kAsciiMode)
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{
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}
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void
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FindTextView::MakeFocus(bool state)
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{
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BTextView::MakeFocus(state);
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if (fScrollView != NULL)
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fScrollView->SetBorderHighlighted(state);
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}
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void
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FindTextView::TargetedByScrollView(BScrollView *view)
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{
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BTextView::TargetedByScrollView(view);
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fScrollView = view;
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}
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void
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FindTextView::KeyDown(const char *bytes, int32 numBytes)
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{
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if (fMode == kHexMode) {
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// filter out invalid characters
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if (numBytes > 1)
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return;
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if (bytes[0] == B_DELETE || bytes[0] == B_BACKSPACE) {
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// ToDo
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return;
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}
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if (!strchr("0123456789abcdefABCDEF", bytes[0]))
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return;
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// the original KeyDown() has severe cursor setting
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// problems with our InsertText().
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int32 start, end;
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GetSelection(&start, &end);
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InsertText(bytes, 1, start, NULL);
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Invalidate();
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return;
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}
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BTextView::KeyDown(bytes, numBytes);
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}
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void
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FindTextView::InsertText(const char *text, int32 length, int32 offset,
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const text_run_array *runs)
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{
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if (fMode == kHexMode) {
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if (offset > TextLength())
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offset = TextLength();
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BTextView::InsertText(text, length, offset, runs);
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// lets add anything, and then start to filter out
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// (since we have to reformat the whole text)
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const char *text = Text();
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int32 textLength = TextLength();
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char *insert = (char *)malloc(textLength * 2);
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if (insert == NULL)
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return;
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int32 cursor = TextLength();
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int32 out = 0;
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for (int32 i = 0; i < textLength; i++) {
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char c = text[i];
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if (c >= 'A' && c <= 'F')
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c += 'A' - 'a';
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if ((c >= 'a' && c <= 'f') || (c >= '0' && c <= '9'))
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insert[out++] = c;
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if (i == offset && length == 1) {
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// this is the end of the inserted text
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cursor = out;
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}
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if ((out % 3) == 2)
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insert[out++] = ' ';
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}
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insert[out] = '\0';
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DeleteText(0, textLength);
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BTextView::InsertText(insert, out, 0, NULL);
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int32 start, end;
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GetSelection(&start, &end);
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if (start == offset)
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Select(cursor, cursor);
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free(insert);
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} else
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BTextView::InsertText(text, length, offset, runs);
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}
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status_t
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FindTextView::SetMode(find_mode mode)
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{
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if (fMode == mode)
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return B_OK;
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if (mode == kHexMode) {
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// convert text to hex mode
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int32 length = TextLength();
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char *hex = (char *)malloc(length * 3 + 1);
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if (hex == NULL)
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return B_NO_MEMORY;
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fMode = mode;
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const char *text = Text();
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char *out = hex;
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for (int32 i = 0; i < length; i++) {
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out += sprintf(out, "%02x", *(unsigned char *)(text + i));
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}
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out[0] = '\0';
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SetText(hex);
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free(hex);
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} else {
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// ToDo: convert to ascii
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return B_ERROR;
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}
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return B_OK;
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}
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void
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FindTextView::GetData(BMessage &message)
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{
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if (fMode == kHexMode) {
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// ToDo: ...
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} else
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message.AddData("data", B_RAW_TYPE, Text(), TextLength());
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}
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// #pragma mark -
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FindWindow::FindWindow(BRect rect, BMessenger &target)
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: BWindow(rect, "Find", B_TITLED_WINDOW, B_ASYNCHRONOUS_CONTROLS),
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fTarget(target)
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{
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BView *view = new BView(Bounds(), "main", B_FOLLOW_ALL, 0);
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view->SetViewColor(ui_color(B_PANEL_BACKGROUND_COLOR));
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AddChild(view);
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// add the top widgets
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fMenu = new BPopUpMenu("mode");
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BMessage *message;
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BMenuItem *item;
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fMenu->AddItem(item = new BMenuItem("String", message = new BMessage(kMsgFindMode)));
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item->SetMarked(true);
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message->AddInt8("mode", kAsciiMode);
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fMenu->AddItem(item = new BMenuItem("Hexadecimal", message = new BMessage(kMsgFindMode)));
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message->AddInt8("mode", kHexMode);
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BRect rect = Bounds().InsetByCopy(5, 5);
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BMenuField *menuField = new BMenuField(rect, B_EMPTY_STRING,
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"Mode:", fMenu, B_FOLLOW_LEFT | B_FOLLOW_TOP);
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menuField->SetDivider(menuField->StringWidth(menuField->Label()) + 8);
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menuField->ResizeToPreferred();
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view->AddChild(menuField);
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// add the bottom widgets
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BButton *button = new BButton(rect, B_EMPTY_STRING, "Find", new BMessage(kMsgStartFind),
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B_FOLLOW_RIGHT | B_FOLLOW_BOTTOM);
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button->MakeDefault(true);
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button->ResizeToPreferred();
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button->MoveTo(rect.right - button->Bounds().Width(),
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rect.bottom - button->Bounds().Height());
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view->AddChild(button);
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fCaseCheckBox = new BCheckBox(rect, B_EMPTY_STRING, "Case sensitive",
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NULL, B_FOLLOW_LEFT | B_FOLLOW_BOTTOM);
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fCaseCheckBox->ResizeToPreferred();
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fCaseCheckBox->MoveTo(5, button->Frame().top - 5 - fCaseCheckBox->Bounds().Height());
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view->AddChild(fCaseCheckBox);
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// and now those inbetween
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rect.top = menuField->Frame().bottom + 5;
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rect.bottom = fCaseCheckBox->Frame().top - 5;
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rect.InsetBy(2, 2);
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fTextView = new FindTextView(rect, B_EMPTY_STRING,
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rect.OffsetToCopy(B_ORIGIN).InsetByCopy(3, 3),
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B_FOLLOW_ALL);
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fTextView->SetWordWrap(true);
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BScrollView *scrollView = new BScrollView("scroller", fTextView, B_FOLLOW_ALL, B_WILL_DRAW, false, false);
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view->AddChild(scrollView);
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ResizeTo(290, button->Frame().Height() * 4 + 30);
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}
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FindWindow::~FindWindow()
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{
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}
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void
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FindWindow::WindowActivated(bool active)
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{
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fTextView->MakeFocus(active);
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}
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void
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FindWindow::MessageReceived(BMessage *message)
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{
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switch (message->what) {
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case kMsgFindMode:
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{
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int8 mode;
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if (message->FindInt8("mode", &mode) != B_OK)
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break;
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if (fTextView->SetMode((find_mode)mode) == B_OK) {
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// the "case sensitive" check box is only for ASCII mode
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fCaseCheckBox->SetEnabled(mode == kAsciiMode);
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} else {
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// activate other item
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fMenu->ItemAt(mode == kAsciiMode ? 1 : 0)->SetMarked(true);
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beep();
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}
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fTextView->MakeFocus(true);
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break;
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}
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case kMsgStartFind:
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{
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BMessage find(kMsgFind);
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fTextView->GetData(find);
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find.AddBool("case_sensitive", fCaseCheckBox->Value() != 0);
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fTarget.SendMessage(&find);
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PostMessage(B_QUIT_REQUESTED);
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break;
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}
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default:
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BWindow::MessageReceived(message);
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}
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}
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bool
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FindWindow::QuitRequested()
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{
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be_app_messenger.SendMessage(kMsgFindWindowClosed);
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return true;
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}
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void
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FindWindow::SetTarget(BMessenger &target)
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{
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fTarget = target;
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}
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