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gource.cpp
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gource.cpp
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/*
Copyright (C) 2009 Andrew Caudwell (acaudwell@gmail.com)
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version
3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "gource.h"
bool gGourceDrawBackground = true;
bool gGourceQuadTreeDebug = false;
int gGourceMaxQuadTreeDepth = 6;
int gGourceUserInnerLoops = 0;
Gource::Gource(FrameExporter* exporter) {
this->logfile = gGourceSettings.path;
commitlog = 0;
if(!gGourceSettings.file_graphic) {
gGourceSettings.file_graphic = texturemanager.grab("file.png");
}
fontlarge = fontmanager.grab("FreeSans.ttf", 42);
fontlarge.dropShadow(true);
fontlarge.roundCoordinates(true);
fontmedium = fontmanager.grab("FreeSans.ttf", gGourceSettings.font_size);
fontmedium.dropShadow(true);
fontmedium.roundCoordinates(false);
font = fontmanager.grab("FreeSans.ttf", 14);
font.dropShadow(true);
font.roundCoordinates(true);
//only use bloom with alpha channel if transparent due to artifacts on some video cards
std::string bloom_tga = gGourceSettings.transparent ? "bloom_alpha.tga" : "bloom.tga";
bloomtex = texturemanager.grab(bloom_tga);
beamtex = texturemanager.grab("beam.png");
logotex = 0;
backgroundtex = 0;
//load logo
if(gGourceSettings.logo.size() > 0) {
logotex = texturemanager.grabFile(gGourceSettings.logo);
}
//load background image
if(gGourceSettings.background_image.size() > 0) {
backgroundtex = texturemanager.grabFile(gGourceSettings.background_image);
}
stop_position_reached=false;
paused = false;
first_read = true;
draw_loading = true;
grab_mouse = false;
mousemoved = false;
mousedragged = false;
mouseclicked = false;
if(1) {
cursor.setCursorTexture(texturemanager.grab("cursor.png"));
cursor.useSystemCursor(false);
}
if(gGourceSettings.hide_mouse) {
cursor.showCursor(false);
}
splash = -1.0;
debug = false;
trace_debug = false;
frameExporter = 0;
dirNodeTree = 0;
userTree = 0;
selectedFile = 0;
hoverFile = 0;
selectedUser = 0;
hoverUser = 0;
date_x_offset = 0;
textbox = TextBox(fontmanager.grab("FreeSans.ttf", 18));
textbox.show();
textbox.setText("Hello");
camera = ZoomCamera(vec3f(0,0, -300), vec3f(0.0, 0.0, 0.0), 250.0, 5000.0);
camera.setPadding(gGourceSettings.padding);
setCameraMode(gGourceSettings.camera_mode);
root = 0;
//min phsyics rate 60fps (ie maximum allowed delta 1.0/60)
max_tick_rate = 1.0 / 60.0;
runtime = 0.0f;
frameskip = 0;
framecount = 0;
reset();
if(exporter!=0) setFrameExporter(exporter, gGourceSettings.output_framerate);
//if recording a video or in demo mode, or multiple repos, the slider is initially hidden
if(exporter==0 && gGourceSettings.repo_count==1) slider.show();
}
void Gource::writeCustomLog(const std::string& logfile, const std::string& output_file) {
RCommitLog* commitlog = determineFormat(logfile);
if(!commitlog) return;
RCommit commit;
FILE* fh = stdout;
if(output_file != "-") {
fh = fopen(output_file.c_str(), "w");
if(!fh) return;
}
while(commitlog->nextCommit(commit)) {
for(std::list<RCommitFile>::iterator it = commit.files.begin(); it != commit.files.end(); it++) {
RCommitFile& cf = *it;
fprintf(fh, "%d|%s|%s|%s\n", commit.timestamp, commit.username.c_str(), cf.action.c_str(), cf.filename.c_str());
}
commit.files.clear();
}
if(output_file != "-") fclose(fh);
}
RCommitLog* Gource::determineFormat(const std::string& logfile) {
debugLog("determineFormat(%s)\n", logfile.c_str());
RCommitLog* clog = 0;
//we've been told what format to use
if(gGourceSettings.log_format.size() > 0) {
debugLog("--log-format = %s\n", gGourceSettings.log_format.c_str());
if(gGourceSettings.log_format == "git") {
clog = new GitCommitLog(logfile);
if(clog->checkFormat()) return clog;
delete clog;
clog = new GitRawCommitLog(logfile);
if(clog->checkFormat()) return clog;
delete clog;
}
if(gGourceSettings.log_format == "hg") {
clog = new MercurialLog(logfile);
if(clog->checkFormat()) return clog;
delete clog;
}
if(gGourceSettings.log_format == "bzr") {
clog = new BazaarLog(logfile);
if(clog->checkFormat()) return clog;
delete clog;
}
if(gGourceSettings.log_format == "cvs") {
clog = new CVSEXPCommitLog(logfile);
if(clog->checkFormat()) return clog;
delete clog;
}
if(gGourceSettings.log_format == "custom") {
clog = new CustomLog(logfile);
if(clog->checkFormat()) return clog;
delete clog;
}
if(gGourceSettings.log_format == "apache") {
clog = new ApacheCombinedLog(logfile);
if(clog->checkFormat()) return clog;
delete clog;
}
if(gGourceSettings.log_format == "svn") {
clog = new SVNCommitLog(logfile);
if(clog->checkFormat()) return clog;
delete clog;
}
if(gGourceSettings.log_format == "cvs2cl") {
clog = new CVS2CLCommitLog(logfile);
if(clog->checkFormat()) return clog;
delete clog;
}
return 0;
}
//git
debugLog("trying git...\n");
clog = new GitCommitLog(logfile);
if(clog->checkFormat()) return clog;
delete clog;
//mercurial
debugLog("trying mercurial...\n");
clog = new MercurialLog(logfile);
if(clog->checkFormat()) return clog;
delete clog;
//bzr
debugLog("trying bzr...\n");
clog = new BazaarLog(logfile);
if(clog->checkFormat()) return clog;
delete clog;
//git raw
debugLog("trying git raw...\n");
clog = new GitRawCommitLog(logfile);
if(clog->checkFormat()) return clog;
delete clog;
//cvs exp
debugLog("trying cvs-exp...\n");
clog = new CVSEXPCommitLog(logfile);
if(clog->checkFormat()) return clog;
delete clog;
//svn
debugLog("trying svn...\n");
clog = new SVNCommitLog(logfile);
if(clog->checkFormat()) return clog;
delete clog;
//cvs2cl
debugLog("trying cvs2cl...\n");
clog = new CVS2CLCommitLog(logfile);
if(clog->checkFormat()) return clog;
delete clog;
//custom
debugLog("trying custom...\n");
clog = new CustomLog(logfile);
if(clog->checkFormat()) return clog;
delete clog;
//apache
debugLog("trying apache combined...\n");
clog = new ApacheCombinedLog(logfile);
if(clog->checkFormat()) return clog;
delete clog;
return 0;
}
Gource::~Gource() {
reset();
if(commitlog!=0) delete commitlog;
if(root!=0) delete root;
//reset settings
gGourceSettings.setGourceDefaults();
}
void Gource::init() {
}
void Gource::update(float t, float dt) {
float scaled_dt = std::min(dt, max_tick_rate);
//if exporting a video use a fixed tick rate rather than time based
if(frameExporter != 0) {
scaled_dt = max_tick_rate;
}
//apply time scaling
scaled_dt *= gGourceSettings.time_scale;
//have to manage runtime internally as we're messing with dt
if(!paused) runtime += scaled_dt;
if(gGourceSettings.stop_at_time > 0.0 && runtime >= gGourceSettings.stop_at_time) stop_position_reached = true;
logic_time = SDL_GetTicks();
logic(runtime, scaled_dt);
logic_time = SDL_GetTicks() - logic_time;
draw_time = SDL_GetTicks();
draw(runtime, scaled_dt);
//extract frames based on frameskip setting if frameExporter defined
if(frameExporter != 0) {
if(framecount % (frameskip+1) == 0) {
frameExporter->dump();
}
}
if(!gGourceSettings.hide_mouse) {
//note: cursor uses real dt
cursor.logic(dt);
cursor.draw();
}
framecount++;
}
//peek at the date under the mouse pointer on the slider
std::string Gource::dateAtPosition(float percent) {
RCommit commit;
std::string date;
if(percent<1.0 && commitlog->getCommitAt(percent, commit)) {
//display date
char datestr[256];
// TODO: memory leak ??
struct tm* timeinfo = localtime ( &(commit.timestamp) );
strftime(datestr, 256, "%A, %d %B, %Y", timeinfo);
date = std::string(datestr);
}
return date;
}
void Gource::mouseMove(SDL_MouseMotionEvent *e) {
if(commitlog==0) return;
if(gGourceSettings.hide_mouse) return;
bool rightmouse = cursor.rightButtonPressed();
if(grab_mouse) {
int warp_x = display.width/2;
int warp_y = display.height/2;
//this is an even we generated by warping the mouse below
if(e->x == warp_x && e->y == warp_y) return;
SDL_WarpMouse(warp_x, warp_y);
}
//move camera in direction the user dragged the mouse
if(mousedragged || rightmouse) {
vec2f mag( e->xrel, e->yrel );
//if right mouse button is held while dragging, rotate tree instead of
//moving camera
if(rightmouse) {
manual_rotate = true;
if(fabs(mag.x) > fabs(mag.y)) {
rotate_angle = std::min(1.0f, (float) fabs(mag.x) / 10.0f) * 5.0f * DEGREES_TO_RADIANS;
if(mag.x < 0.0f) rotate_angle = -rotate_angle;
} else {
rotate_angle = std::min(1.0f, (float) fabs(mag.y) / 10.0f) * 5.0f * DEGREES_TO_RADIANS;
if(mag.y < 0.0f) rotate_angle = -rotate_angle;
}
return;
}
cursor_move = mag;
return;
}
if(grab_mouse) return;
mousepos = vec2f(e->x, e->y);
mousemoved=true;
cursor.updatePos(mousepos);
float pos;
if(!gGourceSettings.hide_progress && slider.mouseOver(mousepos, &pos)) {
std::string date = dateAtPosition(pos);
slider.setCaption(date);
}
}
void Gource::zoom(bool zoomin) {
manual_zoom = true;
float zoom_multi = 1.1;
float distance = -camera.getDest().z;
if(zoomin) {
distance /= zoom_multi;
if(distance < 100.0f) distance = 100.0f;
} else {
distance *= zoom_multi;
if(distance > 4999.0f) distance = 4999.0f;
}
camera.setDistance(distance);
}
void Gource::mouseClick(SDL_MouseButtonEvent *e) {
if(commitlog==0) return;
if(gGourceSettings.hide_mouse) return;
//mouse click should stop the cursor being idle
cursor.updatePos(mousepos);
if(e->type == SDL_MOUSEBUTTONUP) {
if(e->button == SDL_BUTTON_LEFT) {
//stop dragging mouse, return the mouse to where
//the user started dragging.
mousedragged=false;
}
if(e->button == SDL_BUTTON_LEFT || e->button == SDL_BUTTON_RIGHT) {
if(!cursor.buttonPressed()) {
cursor.showCursor(true);
grab_mouse=false;
SDL_WarpMouse(mousepos.x, mousepos.y);
}
}
}
if(e->type != SDL_MOUSEBUTTONDOWN) return;
//wheel up
if(e->button == SDL_BUTTON_WHEELUP) {
zoom(true);
return;
}
//wheel down
if(e->button == SDL_BUTTON_WHEELDOWN) {
zoom(false);
return;
}
if(e->button == SDL_BUTTON_MIDDLE) {
toggleCameraMode();
return;
}
if(e->button == SDL_BUTTON_RIGHT) {
cursor.showCursor(false);
grab_mouse=true;
return;
}
if(e->button == SDL_BUTTON_LEFT) {
//mousepos = vec2f(e->x, e->y);
mouseclicked=true;
if(canSeek()) {
float position;
if(slider.click(mousepos, &position)) {
seekTo(position);
}
}
}
}
void Gource::showSplash() {
splash = 15.0;
}
void Gource::setFrameExporter(FrameExporter* exporter, int video_framerate) {
int gource_framerate = video_framerate;
this->framecount = 0;
this->frameskip = 0;
//calculate appropriate tick rate for video frame rate
while(gource_framerate<60) {
gource_framerate += video_framerate;
this->frameskip++;
}
this->max_tick_rate = 1.0f / ((float) gource_framerate);
this->frameExporter = exporter;
}
void Gource::setCameraMode(const std::string& mode) {
setCameraMode(mode == "track");
}
void Gource::setCameraMode(bool track_users) {
manual_rotate = false;
manual_zoom = false;
this->track_users = track_users;
if(selectedUser!=0) camera.lockOn(track_users);
manual_camera = false;
gGourceSettings.camera_mode = track_users ? "track" : "overview";
}
void Gource::toggleCameraMode() {
setCameraMode(!track_users);
}
//trace click of mouse on background
void Gource::selectBackground() {
//is the left mouse button down?
if(!cursor.leftButtonPressed()) return;
selectUser(0);
manual_camera = true;
cursor.showCursor(false);
grab_mouse=true;
mousedragged=true;
}
//select a user, deselect current file/user
void Gource::selectUser(RUser* user) {
//already selected do nothing
if(user!=0 && selectedUser==user) return;
if(selectedFile != 0) {
selectedFile->setSelected(false);
selectedFile = 0;
}
// deselect current user
if(selectedUser != 0) {
selectedUser->setSelected(false);
selectedUser = 0;
}
//if no user return
if(user == 0) {
camera.lockOn(false);
return;
}
selectedUser = user;
//select user, lock on camera
selectedUser->setSelected(true);
if(track_users) camera.lockOn(true);
}
//select a file, deselect current file/user
void Gource::selectFile(RFile* file) {
//already selected do nothing
if(file!=0 && selectedFile==file) return;
if(selectedUser != 0) {
selectedUser->setSelected(false);
selectedUser = 0;
}
// deselect current file
if(selectedFile != 0) {
selectedFile->setSelected(false);
selectedFile = 0;
}
//if no file return
if(file == 0) {
return;
}
selectedFile = file;
//select user, lock on camera
selectedFile->setSelected(true);
}
void Gource::selectNextUser() {
debugLog("selectNextUser()\n");
int currTagId = -1;
if(selectedUser != 0) {
currTagId = selectedUser->getTagID();
}
RUser* newSelectedUser = 0;
// find next user after this user
for(std::map<int,RUser*>::iterator it = tagusermap.begin(); it != tagusermap.end(); it++) {
RUser* user = it->second;
if(!user->isInactive() && user->getTagID() > currTagId && user->getAlpha() >= 1.0) {
newSelectedUser = user;
break;
}
}
// just get first user
if(newSelectedUser == 0) {
for(std::map<int,RUser*>::iterator it = tagusermap.begin(); it != tagusermap.end(); it++) {
RUser* user = it->second;
if(!user->isInactive() && user->getAlpha() >= 1.0) {
newSelectedUser = user;
break;
}
}
}
selectUser(newSelectedUser);
}
void Gource::keyPress(SDL_KeyboardEvent *e) {
if (e->type == SDL_KEYUP) return;
if (e->type == SDL_KEYDOWN) {
if (e->keysym.unicode == SDLK_ESCAPE) {
appFinished=true;
}
if(commitlog==0) return;
if(e->keysym.sym == SDLK_F12) {
screenshot();
}
if (e->keysym.sym == SDLK_q) {
debug = !debug;
}
if (e->keysym.sym == SDLK_w) {
trace_debug = !trace_debug;
}
if (e->keysym.sym == SDLK_m) {
//toggle mouse visiblity unless mouse clicked/pressed/dragged
if(!(mousedragged || mouseclicked || cursor.leftButtonPressed() )) {
if(!cursor.isHidden()) {
cursor.showCursor(false);
gGourceSettings.hide_mouse = true;
} else {
cursor.showCursor(true);
gGourceSettings.hide_mouse = false;
}
}
}
if (e->keysym.sym == SDLK_n) {
idle_time = gGourceSettings.auto_skip_seconds;
}
if (e->keysym.sym == SDLK_t) {
gGourceQuadTreeDebug = !gGourceQuadTreeDebug;
}
if (e->keysym.sym == SDLK_g) {
gGourceSettings.hide_users = !gGourceSettings.hide_users;
}
if (e->keysym.sym == SDLK_u) {
gGourceSettings.hide_usernames = !gGourceSettings.hide_usernames;
}
if (e->keysym.sym == SDLK_d) {
gGourceSettings.hide_dirnames = ! gGourceSettings.hide_dirnames;
}
if (e->keysym.sym == SDLK_f) {
gGourceSettings.hide_filenames = !gGourceSettings.hide_filenames;
}
if(e->keysym.sym == SDLK_c) {
splash = 15.0f;
}
if (e->keysym.sym == SDLK_v) {
toggleCameraMode();
}
if (e->keysym.sym == SDLK_z) {
gGourceGravity = !gGourceGravity;
}
if (e->keysym.sym == SDLK_s) {
recolour=true;
}
if(e->keysym.unicode == SDLK_TAB) {
selectNextUser();
}
if (e->keysym.unicode == SDLK_SPACE) {
paused = !paused;
}
if (e->keysym.unicode == SDLK_EQUALS || e->keysym.unicode == SDLK_PLUS) {
if(gGourceSettings.days_per_second>=1.0) {
gGourceSettings.days_per_second = std::min(30.0f, floorf(gGourceSettings.days_per_second) + 1.0f);
} else {
gGourceSettings.days_per_second = std::min(1.0f, gGourceSettings.days_per_second * 2.0f);
}
}
if (e->keysym.unicode == SDLK_MINUS) {
if(gGourceSettings.days_per_second>1.0) {
gGourceSettings.days_per_second = std::max(0.0f, floorf(gGourceSettings.days_per_second) - 1.0f);
} else {
gGourceSettings.days_per_second = std::max(0.0f, gGourceSettings.days_per_second * 0.5f);
}
}
if(e->keysym.sym == SDLK_KP_MINUS) {
zoom(true);
}
if(e->keysym.sym == SDLK_KP_PLUS) {
zoom(false);
}
if(e->keysym.unicode == SDLK_LEFTBRACKET) {
gGourceForceGravity /= 1.1;
}
if(e->keysym.unicode == SDLK_RIGHTBRACKET) {
gGourceForceGravity *= 1.1;
}
if(e->keysym.unicode == SDLK_PERIOD) {
if(gGourceSettings.time_scale>=1.0) {
gGourceSettings.time_scale = std::min(4.0f, floorf(gGourceSettings.time_scale) + 1.0f);
} else {
gGourceSettings.time_scale = std::min(1.0f, gGourceSettings.time_scale * 2.0f);
}
}
if(e->keysym.unicode == SDLK_COMMA) {
if(gGourceSettings.time_scale>1.0) {
gGourceSettings.time_scale = std::max(0.0f, floorf(gGourceSettings.time_scale) - 1.0f);
} else {
gGourceSettings.time_scale = std::max(0.25f, gGourceSettings.time_scale * 0.5f);
}
}
if(e->keysym.unicode == SDLK_SLASH) {
gGourceSettings.time_scale = 1.0f;
}
}
}
void Gource::reset() {
camera.reset();
user_bounds.reset();
dir_bounds.reset();
commitqueue.clear();
tagfilemap.clear();
tagusermap.clear();
gGourceRemovedFiles.clear();
if(userTree!=0) delete userTree;
if(dirNodeTree!=0) delete dirNodeTree;
recolour = false;
userTree = 0;
dirNodeTree = 0;
selectedFile = 0;
hoverFile = 0;
use_selection_bounds = false;
selection_bounds.reset();
manual_rotate = false;
manual_zoom = false;
rotation_remaining_angle = 0.0f;
message_timer = 0.0f;
cursor_move = vec2f(0.0f, 0.0f);
selectedUser = 0;
hoverUser = 0;
manual_camera = false;
grab_mouse = false;
mouseclicked=false;
mousemoved=false;
mousedragged = false;
rotate_angle = 0.0f;
if(root!=0) delete root;
root = new RDirNode(0, "/");
//delete users
for(std::map<std::string,RUser*>::iterator it = users.begin(); it != users.end(); it++) {
delete it->second;
}
users.clear();
//delete
for(std::map<std::string,RFile*>::iterator it = files.begin(); it != files.end(); it++) {
delete it->second;
}
last_percent = 0.0;
files.clear();
idle_time=0;
currtime=0;
lasttime=0;
subseconds=0.0;
tag_seq = 1;
commit_seq = 1;
}
void Gource::deleteFile(RFile* file) {
debugLog("removing file %s\n", file->fullpath.c_str());
root->removeFile(file);
if(hoverFile == file) {
hoverFile = 0;
}
if(selectedFile == file) {
selectFile(0);
}
//remove from any users with actions against this file - wrong way around? meh
for(std::map<std::string,RUser*>::iterator it = users.begin(); it!=users.end(); it++) {
RUser* user = it->second;
user->fileRemoved(file);
}
files.erase(file->fullpath);
tagfilemap.erase(file->getTagID());
debugLog("removed file %s\n", file->fullpath.c_str());
delete file;
}
void Gource::deleteUser(RUser* user) {
if(hoverUser == user) {
hoverUser = 0;
}
if(selectedUser == user) {
selectUser(0);
}
users.erase(user->getName());
tagusermap.erase(user->getTagID());
debugLog("deleted user %s, tagid = %d\n", user->getName().c_str(), user->getTagID());
delete user;
}
bool Gource::canSeek() {
if(gGourceSettings.hide_progress || commitlog == 0 || !commitlog->isSeekable()) return false;
return true;
}
void Gource::seekTo(float percent) {
debugLog("seekTo(%.2f)\n", percent);
if(commitlog == 0 || !commitlog->isSeekable()) return;
// end pause
if(paused) paused = false;
reset();
commitlog->seekTo(percent);
}
void Gource::readLog() {
if(stop_position_reached) return;
//debugLog("readLog()\n");
while(!commitlog->isFinished() && commitqueue.size() < 1) {
RCommit commit;
if(!commitlog->nextCommit(commit)) {
if(!commitlog->isSeekable()) {
break;
}
continue;
}
//ignore blank commits
if(commit.files.size() > 0) {
commitqueue.push_back(commit);
}
}
if(first_read && commitqueue.size()==0) {
throw SDLAppException("no commits found");
}
first_read = false;
if(!commitlog->isFinished() && commitlog->isSeekable()) {
last_percent = commitlog->getPercent();
slider.setPercent(last_percent);
}
bool is_finished = commitlog->isFinished();
if( gGourceSettings.stop_at_end && is_finished
|| gGourceSettings.stop_position > 0.0 && commitlog->isSeekable() && (is_finished || last_percent >= gGourceSettings.stop_position)) {
stop_position_reached = true;
}
// useful to figure out where we have crashes
//debugLog("current date: %s\n", displaydate.c_str());
}
void Gource::processCommit(RCommit& commit, float t) {
//find user of this commit or create them
RUser* user = 0;
//see if user already exists but if not wait until
//we actually use one of their files before adding them
std::map<std::string, RUser*>::iterator seen_user = users.find(commit.username);
if(seen_user != users.end()) user = seen_user->second;
//check user against filters, if found, discard commit
if(user == 0 && !gGourceSettings.user_filters.empty()) {
for(std::vector<Regex*>::iterator ri = gGourceSettings.user_filters.begin(); ri != gGourceSettings.user_filters.end(); ri++) {
Regex* r = *ri;
if(r->match(commit.username)) {
return;
}
}
}
//find files of this commit or create it