/*

Description: patch viewer window

Author: Marco Costalba (C) 2005-2007

Copyright: See COPYING file that comes with this distribution

*/

#include <QScrollBar>

#include "common.h"

#include "git.h"

#include "mainimpl.h"

#include "patchcontent.h"

#include "patchview.h"

PatchView::PatchView(MainImpl* mi, Git* g) : Domain(mi, g, false) {

patchTab = new Ui_TabPatch();

patchTab->setupUi(container);

SCRef ic(QString::fromUtf8(":/icons/resources/plusminus.png"));

patchTab->buttonFilterPatch->setIcon(QIcon(ic));

QButtonGroup* bg = new QButtonGroup(this);

bg->addButton(patchTab->radioButtonParent, DIFF_TO_PARENT);

bg->addButton(patchTab->radioButtonHead, DIFF_TO_HEAD);

bg->addButton(patchTab->radioButtonSha, DIFF_TO_SHA);

connect(bg, SIGNAL(buttonClicked(int)), this, SLOT(button_clicked(int)));

patchTab->textBrowserDesc->setup(this);

patchTab->textEditDiff->setup(this, git);

patchTab->fileList->setup(this, git);

connect(m(), SIGNAL(typeWriterFontChanged()),

patchTab->textEditDiff, SLOT(typeWriterFontChanged()));

connect(m(), SIGNAL(changeFont(const QFont&)),

patchTab->fileList, SLOT(on_changeFont(const QFont&)));

connect(patchTab->lineEditDiff, SIGNAL(returnPressed()),

this, SLOT(lineEditDiff_returnPressed()));

connect(patchTab->fileList, SIGNAL(contextMenu(const QString&, int)),

this, SLOT(on_contextMenu(const QString&, int)));

connect(patchTab->buttonFilterPatch, SIGNAL(clicked()),

this, SLOT(buttonFilterPatch_clicked()));

}

PatchView::~PatchView() {

if (!parent())

return;

clear(); // to cancel any data loading

delete patchTab;

}

void PatchView::clear(bool complete) {

if (complete) {

st.clear();

patchTab->textBrowserDesc->clear();

patchTab->fileList->clear();

}

patchTab->textEditDiff->clear();

}

void PatchView::buttonFilterPatch_clicked() {

QString ic;

PatchContent* pc = patchTab->textEditDiff;

pc->prevFilter = pc->curFilter;

if (pc->curFilter == PatchContent::VIEW_ALL) {

pc->curFilter = PatchContent::VIEW_ADDED;

ic = QString::fromUtf8(":/icons/resources/plusonly.png");

} else if (pc->curFilter == PatchContent::VIEW_ADDED) {

pc->curFilter = PatchContent::VIEW_REMOVED;

ic = QString::fromUtf8(":/icons/resources/minusonly.png");

} else if (pc->curFilter == PatchContent::VIEW_REMOVED) {

pc->curFilter = PatchContent::VIEW_ALL;

ic = QString::fromUtf8(":/icons/resources/plusminus.png");

}

patchTab->buttonFilterPatch->setIcon(QIcon(ic));

patchTab->textEditDiff->refresh();

}

void PatchView::on_contextMenu(const QString& data, int type) {

if (isLinked()) // skip if not linked to main view

Domain::on_contextMenu(data, type);

}

void PatchView::lineEditDiff_returnPressed() {

if (patchTab->lineEditDiff->text().isEmpty())

return;

patchTab->radioButtonSha->setChecked(true); // could be called by code

button_clicked(DIFF_TO_SHA);

}

void PatchView::button_clicked(int diffType) {

QString sha;

switch (diffType) {

case DIFF_TO_PARENT:

break;

case DIFF_TO_HEAD:

sha = "HEAD";

break;

case DIFF_TO_SHA:

sha = patchTab->lineEditDiff->text();

break;

}

if (sha == QGit::ZERO_SHA)

return;

// check for a ref name or an abbreviated form

normalizedSha = (sha.length() != 40 && !sha.isEmpty() ? git->getRefSha(sha) : sha);

if (normalizedSha != st.diffToSha()) { // avoid looping

st.setDiffToSha(normalizedSha); // could be empty

UPDATE();

}

}

void PatchView::on_updateRevDesc() {

SCRef d = m()->getRevisionDesc(st.sha());

patchTab->textBrowserDesc->setHtml(d);

}

void PatchView::updatePatch() {

PatchContent* pc = patchTab->textEditDiff;

pc->clear();

if (normalizedSha != st.diffToSha()) { // note <(null)> != <(empty)>

if (!st.diffToSha().isEmpty()) {

patchTab->lineEditDiff->setText(st.diffToSha());

lineEditDiff_returnPressed();

} else if (!normalizedSha.isEmpty()) {

normalizedSha = "";

// we cannot uncheck radioButtonSha directly

// because "Parent" button will stay off

patchTab->radioButtonParent->toggle();

}

}

pc->update(st); // non blocking

}

bool PatchView::doUpdate(bool force) {

const RevFile* files = NULL;

bool newFiles = false;

if (st.isChanged(StateInfo::SHA) || force) {

if (!isLinked()) {

QString caption(git->getShortLog(st.sha()));

if (caption.length() > 30)

caption = caption.left(30 - 3).trimmed().append("...");

setTabCaption(caption);

}

on_updateRevDesc();

}

if (st.isChanged(StateInfo::ANY & ~StateInfo::FILE_NAME) || force) {

updatePatch();

patchTab->fileList->clear();

files = git->getFiles(st.sha(), st.diffToSha(), st.allMergeFiles());

newFiles = true;

}

// call always to allow a simple refresh

patchTab->fileList->update(files, newFiles);

if (st.isChanged() || force)

patchTab->textEditDiff->centerOnFileHeader(st);

return true;

}