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open_toontown_panda3d/pandatool/src/win-stats/winStatsStripChart.cxx

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/**
* PANDA 3D SOFTWARE
* Copyright (c) Carnegie Mellon University. All rights reserved.
*
* All use of this software is subject to the terms of the revised BSD
* license. You should have received a copy of this license along
* with this source code in a file named "LICENSE."
*
* @file winStatsStripChart.cxx
* @author drose
* @date 2003-12-03
*/
#include "winStatsStripChart.h"
#include "winStatsMonitor.h"
#include "pStatCollectorDef.h"
#include "numeric_types.h"
using std::string;
static const int default_strip_chart_width = 400;
static const int default_strip_chart_height = 100;
// Surely we aren't expected to hardcode the size of a normal checkbox. But
// Windows seems to require this data to be passed to CreateWindow(), so what
// else can I do?
size_t WinStatsStripChart::_check_box_height = 13;
size_t WinStatsStripChart::_check_box_width = 13;
bool WinStatsStripChart::_window_class_registered = false;
const char * const WinStatsStripChart::_window_class_name = "strip";
/**
*
*/
WinStatsStripChart::
WinStatsStripChart(WinStatsMonitor *monitor, int thread_index,
int collector_index, bool show_level) :
PStatStripChart(monitor,
show_level ? monitor->get_level_view(collector_index, thread_index) : monitor->get_view(thread_index),
thread_index,
collector_index,
default_strip_chart_width,
default_strip_chart_height),
WinStatsGraph(monitor)
{
_brush_origin = 0;
_left_margin = 96;
_right_margin = 32;
_top_margin = 16;
_bottom_margin = 8;
if (show_level) {
// If it's a level-type graph, show the appropriate units.
if (_unit_name.empty()) {
set_guide_bar_units(GBU_named);
} else {
set_guide_bar_units(GBU_named | GBU_show_units);
}
} else {
// If it's a time-type graph, show the msHz units.
set_guide_bar_units(get_guide_bar_units() | GBU_show_units);
}
_smooth_check_box = 0;
create_window();
clear_region();
}
/**
*
*/
WinStatsStripChart::
~WinStatsStripChart() {
}
/**
* Called whenever a new Collector definition is received from the client.
*/
void WinStatsStripChart::
new_collector(int collector_index) {
WinStatsGraph::new_collector(collector_index);
}
/**
* Called as each frame's data is made available. There is no gurantee the
* frames will arrive in order, or that all of them will arrive at all. The
* monitor should be prepared to accept frames received out-of-order or
* missing.
*/
void WinStatsStripChart::
new_data(int thread_index, int frame_number) {
if (is_title_unknown()) {
string window_title = get_title_text();
if (!is_title_unknown()) {
SetWindowText(_window, window_title.c_str());
}
}
if (!_pause) {
update();
string text = format_number(get_average_net_value(), get_guide_bar_units(), get_guide_bar_unit_name());
if (_net_value_text != text) {
_net_value_text = text;
RECT rect;
GetClientRect(_window, &rect);
rect.bottom = _top_margin;
InvalidateRect(_window, &rect, TRUE);
}
}
}
/**
* Called when it is necessary to redraw the entire graph.
*/
void WinStatsStripChart::
force_redraw() {
PStatStripChart::force_redraw();
}
/**
* Called when the user has resized the window, forcing a resize of the graph.
*/
void WinStatsStripChart::
changed_graph_size(int graph_xsize, int graph_ysize) {
PStatStripChart::changed_size(graph_xsize, graph_ysize);
}
/**
* Called when the user selects a new time units from the monitor pulldown
* menu, this should adjust the units for the graph to the indicated mask if
* it is a time-based graph.
*/
void WinStatsStripChart::
set_time_units(int unit_mask) {
int old_unit_mask = get_guide_bar_units();
if ((old_unit_mask & (GBU_hz | GBU_ms)) != 0) {
unit_mask = unit_mask & (GBU_hz | GBU_ms);
unit_mask |= (old_unit_mask & GBU_show_units);
set_guide_bar_units(unit_mask);
RECT rect;
GetClientRect(_window, &rect);
rect.left = _right_margin;
InvalidateRect(_window, &rect, TRUE);
GetClientRect(_window, &rect);
rect.bottom = _top_margin;
InvalidateRect(_window, &rect, TRUE);
}
}
/**
* Called when the user selects a new scroll speed from the monitor pulldown
* menu, this should adjust the speed for the graph to the indicated value.
*/
void WinStatsStripChart::
set_scroll_speed(double scroll_speed) {
// The speed factor indicates chart widths per minute.
if (scroll_speed != 0.0f) {
set_horizontal_scale(60.0f / scroll_speed);
}
}
/**
* Called when the user single-clicks on a label.
*/
void WinStatsStripChart::
clicked_label(int collector_index) {
if (collector_index < 0) {
// Clicking on whitespace in the graph is the same as clicking on the top
// label.
collector_index = get_collector_index();
}
if (collector_index == get_collector_index() && collector_index != 0) {
// Clicking on the top label means to go up to the parent level.
const PStatClientData *client_data =
WinStatsGraph::_monitor->get_client_data();
if (client_data->has_collector(collector_index)) {
const PStatCollectorDef &def =
client_data->get_collector_def(collector_index);
if (def._parent_index == 0 && get_view().get_show_level()) {
// Unless the parent is "Frame", and we're not a time collector.
} else {
set_collector_index(def._parent_index);
}
}
} else {
// Clicking on any other label means to focus on that.
set_collector_index(collector_index);
}
}
/**
* Changes the value the height of the vertical axis represents. This may
* force a redraw.
*/
void WinStatsStripChart::
set_vertical_scale(double value_height) {
PStatStripChart::set_vertical_scale(value_height);
RECT rect;
GetClientRect(_window, &rect);
rect.left = _right_margin;
InvalidateRect(_window, &rect, TRUE);
}
/**
* Resets the list of labels.
*/
void WinStatsStripChart::
update_labels() {
PStatStripChart::update_labels();
_label_stack.clear_labels();
for (int i = 0; i < get_num_labels(); i++) {
_label_stack.add_label(WinStatsGraph::_monitor, this, _thread_index,
get_label_collector(i), false);
}
_labels_changed = false;
}
/**
* Erases the chart area.
*/
void WinStatsStripChart::
clear_region() {
RECT rect = { 0, 0, get_xsize(), get_ysize() };
FillRect(_bitmap_dc, &rect, (HBRUSH)GetStockObject(WHITE_BRUSH));
}
/**
* Should be overridden by the user class to copy a region of the chart from
* one part of the chart to another. This is used to implement scrolling.
*/
void WinStatsStripChart::
copy_region(int start_x, int end_x, int dest_x) {
BitBlt(_bitmap_dc, dest_x, 0,
end_x - start_x, get_ysize(),
_bitmap_dc, start_x, 0,
SRCCOPY);
// Also shift the brush origin over, so we still get proper dithering.
_brush_origin += (dest_x - start_x);
SetBrushOrgEx(_bitmap_dc, _brush_origin, 0, nullptr);
RECT rect = {
dest_x, 0, dest_x + end_x - start_x, get_ysize()
};
InvalidateRect(_graph_window, &rect, FALSE);
}
/**
* Draws a single vertical slice of the strip chart, at the given pixel
* position, and corresponding to the indicated level data.
*/
void WinStatsStripChart::
draw_slice(int x, int w, const PStatStripChart::FrameData &fdata) {
// Start by clearing the band first.
RECT rect = { x, 0, x + w, get_ysize() };
FillRect(_bitmap_dc, &rect, (HBRUSH)GetStockObject(WHITE_BRUSH));
double overall_time = 0.0;
int y = get_ysize();
FrameData::const_iterator fi;
for (fi = fdata.begin(); fi != fdata.end(); ++fi) {
const ColorData &cd = (*fi);
overall_time += cd._net_value;
HBRUSH brush = get_collector_brush(cd._collector_index);
if (overall_time > get_vertical_scale()) {
// Off the top. Go ahead and clamp it by hand, in case it's so far off
// the top we'd overflow the 16-bit pixel value.
rect.top = 0;
rect.bottom = y;
FillRect(_bitmap_dc, &rect, brush);
// And we can consider ourselves done now.
return;
}
int top_y = height_to_pixel(overall_time);
rect.top = top_y;
rect.bottom = y;
FillRect(_bitmap_dc, &rect, brush);
y = top_y;
}
}
/**
* Draws a single vertical slice of background color.
*/
void WinStatsStripChart::
draw_empty(int x, int w) {
RECT rect = { x, 0, x + w, get_ysize() };
FillRect(_bitmap_dc, &rect, (HBRUSH)GetStockObject(WHITE_BRUSH));
}
/**
* Draws a single vertical slice of foreground color.
*/
void WinStatsStripChart::
draw_cursor(int x) {
RECT rect = { x, 0, x + 1, get_ysize() };
FillRect(_bitmap_dc, &rect, (HBRUSH)GetStockObject(BLACK_BRUSH));
}
/**
* Should be overridden by the user class. This hook will be called after
* drawing a series of color bars in the strip chart; it gives the pixel range
* that was just redrawn.
*/
void WinStatsStripChart::
end_draw(int from_x, int to_x) {
// Draw in the guide bars.
int num_guide_bars = get_num_guide_bars();
for (int i = 0; i < num_guide_bars; i++) {
draw_guide_bar(_bitmap_dc, from_x, to_x, get_guide_bar(i));
}
RECT rect = {
from_x, 0, to_x + 1, get_ysize()
};
InvalidateRect(_graph_window, &rect, FALSE);
}
/**
*
*/
LONG WinStatsStripChart::
window_proc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam) {
switch (msg) {
case WM_LBUTTONDOWN:
if (_potential_drag_mode == DM_new_guide_bar) {
set_drag_mode(DM_new_guide_bar);
SetCapture(_graph_window);
return 0;
}
break;
case WM_COMMAND:
switch (LOWORD(wparam)) {
case BN_CLICKED:
if ((HWND)lparam == _smooth_check_box) {
int result = SendMessage(_smooth_check_box, BM_GETCHECK, 0, 0);
set_average_mode(result == BST_CHECKED);
return 0;
}
break;
}
break;
default:
break;
}
return WinStatsGraph::window_proc(hwnd, msg, wparam, lparam);
}
/**
*
*/
LONG WinStatsStripChart::
graph_window_proc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam) {
switch (msg) {
case WM_LBUTTONDOWN:
if (_potential_drag_mode == DM_none) {
set_drag_mode(DM_scale);
int16_t y = HIWORD(lparam);
_drag_scale_start = pixel_to_height(y);
SetCapture(_graph_window);
return 0;
} else if (_potential_drag_mode == DM_guide_bar && _drag_guide_bar >= 0) {
set_drag_mode(DM_guide_bar);
int16_t y = HIWORD(lparam);
_drag_start_y = y;
SetCapture(_graph_window);
return 0;
}
break;
case WM_MOUSEMOVE:
if (_drag_mode == DM_none && _potential_drag_mode == DM_none) {
// When the mouse is over a color bar, highlight it.
int16_t x = LOWORD(lparam);
int16_t y = HIWORD(lparam);
_label_stack.highlight_label(get_collector_under_pixel(x, y));
// Now we want to get a WM_MOUSELEAVE when the mouse leaves the graph
// window.
TRACKMOUSEEVENT tme = {
sizeof(TRACKMOUSEEVENT),
TME_LEAVE,
_graph_window,
0
};
TrackMouseEvent(&tme);
} else {
// If the mouse is in some drag mode, stop highlighting.
_label_stack.highlight_label(-1);
}
if (_drag_mode == DM_scale) {
int16_t y = HIWORD(lparam);
double ratio = 1.0f - ((double)y / (double)get_ysize());
if (ratio > 0.0f) {
set_vertical_scale(_drag_scale_start / ratio);
}
return 0;
} else if (_drag_mode == DM_new_guide_bar) {
// We haven't created the new guide bar yet; we won't until the mouse
// comes within the graph's region.
int16_t y = HIWORD(lparam);
if (y >= 0 && y < get_ysize()) {
set_drag_mode(DM_guide_bar);
_drag_guide_bar = add_user_guide_bar(pixel_to_height(y));
return 0;
}
} else if (_drag_mode == DM_guide_bar) {
int16_t y = HIWORD(lparam);
move_user_guide_bar(_drag_guide_bar, pixel_to_height(y));
return 0;
}
break;
case WM_MOUSELEAVE:
// When the mouse leaves the graph, stop highlighting.
_label_stack.highlight_label(-1);
break;
case WM_LBUTTONUP:
if (_drag_mode == DM_scale) {
set_drag_mode(DM_none);
ReleaseCapture();
return 0;
} else if (_drag_mode == DM_guide_bar) {
int16_t y = HIWORD(lparam);
if (y < 0 || y >= get_ysize()) {
remove_user_guide_bar(_drag_guide_bar);
} else {
move_user_guide_bar(_drag_guide_bar, pixel_to_height(y));
}
set_drag_mode(DM_none);
ReleaseCapture();
return 0;
}
break;
case WM_LBUTTONDBLCLK:
{
// Double-clicking on a color bar in the graph is the same as double-
// clicking on the corresponding label.
int16_t x = LOWORD(lparam);
int16_t y = HIWORD(lparam);
clicked_label(get_collector_under_pixel(x, y));
return 0;
}
break;
default:
break;
}
return WinStatsGraph::graph_window_proc(hwnd, msg, wparam, lparam);
}
/**
* This is called during the servicing of WM_PAINT; it gives a derived class
* opportunity to do some further painting into the window (the outer window,
* not the graph window).
*/
void WinStatsStripChart::
additional_window_paint(HDC hdc) {
// Draw in the labels for the guide bars.
HFONT hfnt = (HFONT)GetStockObject(ANSI_VAR_FONT);
SelectObject(hdc, hfnt);
SetTextAlign(hdc, TA_LEFT | TA_TOP);
SetBkMode(hdc, TRANSPARENT);
RECT rect;
GetClientRect(_window, &rect);
int x = rect.right - _right_margin + 2;
int last_y = -100;
int i;
int num_guide_bars = get_num_guide_bars();
for (i = 0; i < num_guide_bars; i++) {
last_y = draw_guide_label(hdc, x, get_guide_bar(i), last_y);
}
GuideBar top_value = make_guide_bar(get_vertical_scale());
draw_guide_label(hdc, x, top_value, last_y);
last_y = -100;
int num_user_guide_bars = get_num_user_guide_bars();
for (i = 0; i < num_user_guide_bars; i++) {
last_y = draw_guide_label(hdc, x, get_user_guide_bar(i), last_y);
}
// Now draw the "net value" label at the top.
SetTextAlign(hdc, TA_RIGHT | TA_BOTTOM);
SetTextColor(hdc, RGB(0, 0, 0));
TextOut(hdc, rect.right - _right_margin, _top_margin,
_net_value_text.data(), _net_value_text.length());
// Also draw the "Smooth" label on the check box. This isn't part of the
// check box itself, because doing that doesn't use the right font! Surely
// this isn't the correct Windows(tm) way to do this sort of thing, but I
// don't know any better for now.
SetTextAlign(hdc, TA_LEFT | TA_BOTTOM);
TextOut(hdc, _left_margin + _check_box_width + 2, _top_margin, "Smooth", 6);
}
/**
* This is called during the servicing of WM_PAINT; it gives a derived class
* opportunity to do some further painting into the window (the outer window,
* not the graph window).
*/
void WinStatsStripChart::
additional_graph_window_paint(HDC hdc) {
int num_user_guide_bars = get_num_user_guide_bars();
for (int i = 0; i < num_user_guide_bars; i++) {
draw_guide_bar(hdc, 0, get_xsize(), get_user_guide_bar(i));
}
}
/**
* Based on the mouse position within the window's client area, look for
* draggable things the mouse might be hovering over and return the
* apprioprate DragMode enum or DM_none if nothing is indicated.
*/
WinStatsGraph::DragMode WinStatsStripChart::
consider_drag_start(int mouse_x, int mouse_y, int width, int height) {
if (mouse_x >= _graph_left && mouse_x < _graph_left + get_xsize()) {
if (mouse_y >= _graph_top && mouse_y < _graph_top + get_ysize()) {
// See if the mouse is over a user-defined guide bar.
int y = mouse_y - _graph_top;
double from_height = pixel_to_height(y + 2);
double to_height = pixel_to_height(y - 2);
_drag_guide_bar = find_user_guide_bar(from_height, to_height);
if (_drag_guide_bar >= 0) {
return DM_guide_bar;
}
} else {
// The mouse is above or below the graph; maybe create a new guide bar.
return DM_new_guide_bar;
}
}
return WinStatsGraph::consider_drag_start(mouse_x, mouse_y, width, height);
}
/**
* This should be called whenever the drag mode needs to change state. It
* provides hooks for a derived class to do something special.
*/
void WinStatsStripChart::
set_drag_mode(WinStatsGraph::DragMode drag_mode) {
WinStatsGraph::set_drag_mode(drag_mode);
switch (_drag_mode) {
case DM_scale:
case DM_left_margin:
case DM_right_margin:
case DM_sizing:
// Disable smoothing for these expensive operations.
set_average_mode(false);
break;
default:
// Restore smoothing according to the current setting of the check box.
int result = SendMessage(_smooth_check_box, BM_GETCHECK, 0, 0);
set_average_mode(result == BST_CHECKED);
}
}
/**
* Repositions the graph child window within the parent window according to
* the _margin variables.
*/
void WinStatsStripChart::
move_graph_window(int graph_left, int graph_top, int graph_xsize, int graph_ysize) {
WinStatsGraph::move_graph_window(graph_left, graph_top, graph_xsize, graph_ysize);
if (_smooth_check_box != 0) {
SetWindowPos(_smooth_check_box, 0,
_left_margin, _top_margin - _check_box_height - 1,
0, 0,
SWP_NOZORDER | SWP_NOSIZE | SWP_SHOWWINDOW);
InvalidateRect(_smooth_check_box, nullptr, TRUE);
}
}
/**
* Draws the line for the indicated guide bar on the graph.
*/
void WinStatsStripChart::
draw_guide_bar(HDC hdc, int from_x, int to_x,
const PStatGraph::GuideBar &bar) {
int y = height_to_pixel(bar._height);
if (y > 0) {
// Only draw it if it's not too close to the top.
switch (bar._style) {
case GBS_target:
SelectObject(hdc, _light_pen);
break;
case GBS_user:
SelectObject(hdc, _user_guide_bar_pen);
break;
case GBS_normal:
SelectObject(hdc, _dark_pen);
break;
}
MoveToEx(hdc, from_x, y, nullptr);
LineTo(hdc, to_x + 1, y);
}
}
/**
* Draws the text for the indicated guide bar label to the right of the graph,
* unless it would overlap with the indicated last label, whose top pixel
* value is given. Returns the top pixel value of the new label.
*/
int WinStatsStripChart::
draw_guide_label(HDC hdc, int x, const PStatGraph::GuideBar &bar, int last_y) {
switch (bar._style) {
case GBS_target:
SetTextColor(hdc, _light_color);
break;
case GBS_user:
SetTextColor(hdc, _user_guide_bar_color);
break;
case GBS_normal:
SetTextColor(hdc, _dark_color);
break;
}
int y = height_to_pixel(bar._height);
const string &label = bar._label;
SIZE size;
GetTextExtentPoint32(hdc, label.data(), label.length(), &size);
if (bar._style != GBS_user) {
double from_height = pixel_to_height(y + size.cy);
double to_height = pixel_to_height(y - size.cy);
if (find_user_guide_bar(from_height, to_height) >= 0) {
// Omit the label: there's a user-defined guide bar in the same space.
return last_y;
}
}
int this_y = _graph_top + y - size.cy / 2;
if (y >= 0 && y < get_ysize() &&
(last_y < this_y || last_y > this_y + size.cy)) {
TextOut(hdc, x, this_y,
label.data(), label.length());
last_y = this_y;
}
return last_y;
}
/**
* Creates the window for this strip chart.
*/
void WinStatsStripChart::
create_window() {
if (_window) {
return;
}
HINSTANCE application = GetModuleHandle(nullptr);
register_window_class(application);
string window_title = get_title_text();
RECT win_rect = {
0, 0,
_left_margin + get_xsize() + _right_margin,
_top_margin + get_ysize() + _bottom_margin
};
// compute window size based on desired client area size
AdjustWindowRect(&win_rect, graph_window_style, FALSE);
_window =
CreateWindow(_window_class_name, window_title.c_str(), graph_window_style,
CW_USEDEFAULT, CW_USEDEFAULT,
win_rect.right - win_rect.left,
win_rect.bottom - win_rect.top,
WinStatsGraph::_monitor->get_window(), nullptr, application, 0);
if (!_window) {
nout << "Could not create StripChart window!\n";
exit(1);
}
SetWindowLongPtr(_window, 0, (LONG_PTR)this);
setup_label_stack();
_smooth_check_box =
CreateWindow("BUTTON", "",
WS_CHILD | BS_AUTOCHECKBOX,
0, 0, _check_box_width, _check_box_height,
_window, nullptr, application, 0);
// Ensure that the window is on top of the stack.
SetWindowPos(_window, HWND_TOP, 0, 0, 0, 0,
SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW);
}
/**
* Registers the window class for the stripChart window, if it has not already
* been registered.
*/
void WinStatsStripChart::
register_window_class(HINSTANCE application) {
if (_window_class_registered) {
return;
}
WNDCLASS wc;
ZeroMemory(&wc, sizeof(WNDCLASS));
wc.style = 0;
wc.lpfnWndProc = (WNDPROC)static_window_proc;
wc.hInstance = application;
wc.hCursor = LoadCursor(nullptr, IDC_ARROW);
wc.hbrBackground = (HBRUSH)COLOR_BACKGROUND;
wc.lpszMenuName = nullptr;
wc.lpszClassName = _window_class_name;
// Reserve space to associate the this pointer with the window.
wc.cbWndExtra = sizeof(WinStatsStripChart *);
if (!RegisterClass(&wc)) {
nout << "Could not register StripChart window class!\n";
exit(1);
}
_window_class_registered = true;
}
/**
*
*/
LONG WINAPI WinStatsStripChart::
static_window_proc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam) {
WinStatsStripChart *self = (WinStatsStripChart *)GetWindowLongPtr(hwnd, 0);
if (self != nullptr && self->_window == hwnd) {
return self->window_proc(hwnd, msg, wparam, lparam);
} else {
return DefWindowProc(hwnd, msg, wparam, lparam);
}
}
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