solvespace/src/gtk/gtkmain.cpp at python · realthunder/solvespace · GitHub

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//-----------------------------------------------------------------------------

// Our main() function, and GTK3-specific stuff to set up our windows and

// otherwise handle our interface to the operating system. Everything

// outside gtk/... should be standard C++ and OpenGL.

//-----------------------------------------------------------------------------

#include <errno.h>

#include <sys/stat.h>

#include <unistd.h>

#include <time.h>

#include <iostream>

#include <json-c/json_object.h>

#include <json-c/json_util.h>

#include <glibmm/main.h>

#include <glibmm/convert.h>

#include <giomm/file.h>

#include <gdkmm/cursor.h>

#include <gtkmm/drawingarea.h>

#include <gtkmm/scrollbar.h>

#include <gtkmm/entry.h>

#include <gtkmm/eventbox.h>

#include <gtkmm/fixed.h>

#include <gtkmm/adjustment.h>

#include <gtkmm/separatormenuitem.h>

#include <gtkmm/menuitem.h>

#include <gtkmm/checkmenuitem.h>

#include <gtkmm/radiomenuitem.h>

#include <gtkmm/radiobuttongroup.h>

#include <gtkmm/menu.h>

#include <gtkmm/menubar.h>

#include <gtkmm/scrolledwindow.h>

#include <gtkmm/filechooserdialog.h>

#include <gtkmm/messagedialog.h>

#include <gtkmm/main.h>

#if HAVE_GTK3

#include <gtkmm/hvbox.h>

#else

#include <gtkmm/box.h>

#endif

#include <cairomm/xlib_surface.h>

#include <pangomm/fontdescription.h>

#include <gdk/gdkx.h>

#include <fontconfig/fontconfig.h>

#include <GL/glx.h>

#include "solvespace.h"

#include "config.h"

#include "../unix/gloffscreen.h"

#ifdef HAVE_SPACEWARE

#include <spnav.h>

#endif

namespace SolveSpace {

/* Settings */

/* Why not just use GSettings? Two reasons. It doesn't allow to easily see

whether the setting had the default value, and it requires to install

a schema globally. */

static json_object *settings = NULL;

static std::string CnfPrepare() {

// Refer to http://standards.freedesktop.org/basedir-spec/latest/

std::string dir;

if(getenv("XDG_CONFIG_HOME")) {

dir = std::string(getenv("XDG_CONFIG_HOME")) + "/solvespace";

} else if(getenv("HOME")) {

dir = std::string(getenv("HOME")) + "/.config/solvespace";

} else {

dbp("neither XDG_CONFIG_HOME nor HOME are set");

return "";

}

struct stat st;

if(stat(dir.c_str(), &st)) {

if(errno == ENOENT) {

if(mkdir(dir.c_str(), 0777)) {

dbp("cannot mkdir %s: %s", dir.c_str(), strerror(errno));

return "";

}

} else {

dbp("cannot stat %s: %s", dir.c_str(), strerror(errno));

return "";

}

} else if(!S_ISDIR(st.st_mode)) {

dbp("%s is not a directory", dir.c_str());

return "";

}

return dir + "/settings.json";

}

static void CnfLoad() {

std::string path = CnfPrepare();

if(path.empty())

return;

if(settings)

json_object_put(settings); // deallocate

settings = json_object_from_file(path.c_str());

if(!settings) {

if(errno != ENOENT)

dbp("cannot load settings: %s", strerror(errno));

settings = json_object_new_object();

}

static void CnfSave() {

std::string path = CnfPrepare();

if(path.empty())

return;

/* json-c <0.12 has the first argument non-const here */

if(json_object_to_file_ext((char*) path.c_str(), settings, JSON_C_TO_STRING_PRETTY))

dbp("cannot save settings: %s", strerror(errno));

}

void CnfFreezeInt(uint32_t val, const std::string &key) {

struct json_object *jval = json_object_new_int(val);

json_object_object_add(settings, key.c_str(), jval);

CnfSave();

}

uint32_t CnfThawInt(uint32_t val, const std::string &key) {

struct json_object *jval;

if(json_object_object_get_ex(settings, key.c_str(), &jval))

return json_object_get_int(jval);

else return val;

}

void CnfFreezeFloat(float val, const std::string &key) {

struct json_object *jval = json_object_new_double(val);

json_object_object_add(settings, key.c_str(), jval);

CnfSave();

}

float CnfThawFloat(float val, const std::string &key) {

struct json_object *jval;

if(json_object_object_get_ex(settings, key.c_str(), &jval))

return json_object_get_double(jval);

else return val;

}

void CnfFreezeString(const std::string &val, const std::string &key) {

struct json_object *jval = json_object_new_string(val.c_str());

json_object_object_add(settings, key.c_str(), jval);

CnfSave();

}

std::string CnfThawString(const std::string &val, const std::string &key) {

struct json_object *jval;

if(json_object_object_get_ex(settings, key.c_str(), &jval))

return json_object_get_string(jval);

return val;

}

static void CnfFreezeWindowPos(Gtk::Window *win, const std::string &key) {

int x, y, w, h;

win->get_position(x, y);

win->get_size(w, h);

CnfFreezeInt(x, key + "_left");

CnfFreezeInt(y, key + "_top");

CnfFreezeInt(w, key + "_width");

CnfFreezeInt(h, key + "_height");

}

static void CnfThawWindowPos(Gtk::Window *win, const std::string &key) {

int x, y, w, h;

win->get_position(x, y);

win->get_size(w, h);

x = CnfThawInt(x, key + "_left");

y = CnfThawInt(y, key + "_top");

w = CnfThawInt(w, key + "_width");

h = CnfThawInt(h, key + "_height");

win->move(x, y);

win->resize(w, h);

}

/* Timers */

int64_t GetMilliseconds(void) {

struct timespec ts;

clock_gettime(CLOCK_MONOTONIC, &ts);

return 1000 * (uint64_t) ts.tv_sec + ts.tv_nsec / 1000000;

}

static bool TimerCallback() {

SS.GW.TimerCallback();

SS.TW.TimerCallback();

return false;

}

void SetTimerFor(int milliseconds) {

Glib::signal_timeout().connect(&TimerCallback, milliseconds);

}

static bool AutosaveTimerCallback() {

SS.Autosave();

return false;

}

void SetAutosaveTimerFor(int minutes) {

Glib::signal_timeout().connect(&AutosaveTimerCallback, minutes * 60 * 1000);

}

static bool LaterCallback() {

SS.DoLater();

return false;

}

void ScheduleLater() {

Glib::signal_idle().connect(&LaterCallback);

}

/* GL wrapper */

#define GL_CHECK() \

do { \

int err = (int)glGetError(); \

if(err) dbp("%s:%d: glGetError() == 0x%X %s", \

__FILE__, __LINE__, err, gluErrorString(err)); \

} while (0)

class GlWidget : public Gtk::DrawingArea {

public:

GlWidget() : _offscreen(NULL) {

_xdisplay = gdk_x11_get_default_xdisplay();

int glxmajor, glxminor;

if(!glXQueryVersion(_xdisplay, &glxmajor, &glxminor)) {

dbp("OpenGL is not supported");

oops();

}

if(glxmajor < 1 || (glxmajor == 1 && glxminor < 3)) {

dbp("GLX version %d.%d is too old; 1.3 required", glxmajor, glxminor);

oops();

}

static int fbconfig_attrs[] = {

GLX_RENDER_TYPE, GLX_RGBA_BIT,

GLX_RED_SIZE, 8,

GLX_GREEN_SIZE, 8,

GLX_BLUE_SIZE, 8,

GLX_DEPTH_SIZE, 24,

None

};

int fbconfig_num = 0;

GLXFBConfig *fbconfigs = glXChooseFBConfig(_xdisplay, DefaultScreen(_xdisplay),

fbconfig_attrs, &fbconfig_num);

if(!fbconfigs || fbconfig_num == 0)

oops();

/* prefer FBConfigs with depth of 32;

* Mesa software rasterizer explodes with a BadMatch without this;

* without this, Intel on Mesa flickers horribly for some reason.

this does not seem to affect other rasterizers (ie NVidia).

see this Mesa bug:

http://lists.freedesktop.org/archives/mesa-dev/2015-January/074693.html */

GLXFBConfig fbconfig = fbconfigs[0];

for(int i = 0; i < fbconfig_num; i++) {

XVisualInfo *visual_info = glXGetVisualFromFBConfig(_xdisplay, fbconfigs[i]);

/* some GL visuals, notably on Chromium GL, do not have an associated

X visual; this is not an obstacle as we always render offscreen. */

if(!visual_info) continue;

int depth = visual_info->depth;

XFree(visual_info);

if(depth == 32) {

fbconfig = fbconfigs[i];

break;

}

_glcontext = glXCreateNewContext(_xdisplay,

fbconfig, GLX_RGBA_TYPE, 0, True);

if(!_glcontext) {

dbp("cannot create OpenGL context");

oops();

}

XFree(fbconfigs);

/* create a dummy X window to create a rendering context against.

we could use a Pbuffer, but some implementations (Chromium GL)

don't support these. we could use an existing window, but

some implementations (Chromium GL... do you see a pattern?)

do really strange things, i.e. draw a black rectangle on

the very front of the desktop if you do this. */

_xwindow = XCreateSimpleWindow(_xdisplay,

XRootWindow(_xdisplay, gdk_x11_get_default_screen()),

/*x*/ 0, /*y*/ 0, /*width*/ 1, /*height*/ 1,

/*border_width*/ 0, /*border*/ 0, /*background*/ 0);

}

~GlWidget() {

glXMakeCurrent(_xdisplay, None, NULL);

XDestroyWindow(_xdisplay, _xwindow);

delete _offscreen;

glXDestroyContext(_xdisplay, _glcontext);

}

protected:

/* Draw on a GLX framebuffer object, then read pixels out and draw them on

the Cairo context. Slower, but you get to overlay nice widgets. */

virtual bool on_draw(const Cairo::RefPtr<Cairo::Context> &cr) {

if(!glXMakeCurrent(_xdisplay, _xwindow, _glcontext))

oops();

if(!_offscreen)

_offscreen = new GLOffscreen;

Gdk::Rectangle allocation = get_allocation();

if(!_offscreen->begin(allocation.get_width(), allocation.get_height()))

oops();

on_gl_draw();

glFlush();

GL_CHECK();

Cairo::RefPtr<Cairo::ImageSurface> surface = Cairo::ImageSurface::create(

_offscreen->end(), Cairo::FORMAT_RGB24,

allocation.get_width(), allocation.get_height(), allocation.get_width() * 4);

cr->set_source(surface, 0, 0);

cr->paint();

surface->finish();

return true;

}

#ifdef HAVE_GTK2

virtual bool on_expose_event(GdkEventExpose *) {

return on_draw(get_window()->create_cairo_context());

}

#endif

virtual void on_gl_draw() = 0;

private:

Display *_xdisplay;

GLXContext _glcontext;

GLOffscreen *_offscreen;

::Window _xwindow;

};

/* Editor overlay */

class EditorOverlay : public Gtk::Fixed {

public:

EditorOverlay(Gtk::Widget &underlay) : _underlay(underlay) {

set_size_request(0, 0);

add(_underlay);

_entry.set_no_show_all(true);

_entry.set_has_frame(false);

add(_entry);

_entry.signal_activate().

connect(sigc::mem_fun(this, &EditorOverlay::on_activate));

}

void start_editing(int x, int y, int font_height, bool is_monospace, int minWidthChars,

const std::string &val) {

Pango::FontDescription font_desc;

font_desc.set_family(is_monospace ? "monospace" : "normal");

font_desc.set_absolute_size(font_height * Pango::SCALE);

#ifdef HAVE_GTK3

/* For some reason override_font doesn't take screen DPI into

account on GTK3 when working with font descriptors specified

in absolute sizes; modify_font does on GTK2. */

Pango::FontDescription override_font_desc(font_desc);

double dpi = get_screen()->get_resolution();

override_font_desc.set_size(font_height * 72.0 / dpi * Pango::SCALE);

_entry.override_font(override_font_desc);

#else

_entry.modify_font(font_desc);

#endif

/* y coordinate denotes baseline */

Pango::FontMetrics font_metrics = get_pango_context()->get_metrics(font_desc);

y -= font_metrics.get_ascent() / Pango::SCALE;

Glib::RefPtr<Pango::Layout> layout = Pango::Layout::create(get_pango_context());

layout->set_font_description(font_desc);

layout->set_text(val + " "); /* avoid scrolling */

int width = layout->get_logical_extents().get_width();

#ifdef HAVE_GTK3

Gtk::Border border = _entry.get_style_context()->get_padding();

move(_entry, x - border.get_left(), y - border.get_top());

_entry.set_width_chars(minWidthChars);

_entry.set_size_request(width / Pango::SCALE, -1);

#else

/* We need _gtk_entry_effective_inner_border, but it's not

in the public API, so emulate its logic. */

Gtk::Border border = { 2, 2, 2, 2 }, *style_border;

gtk_widget_style_get(GTK_WIDGET(_entry.gobj()), "inner-border",

&style_border, NULL);

if(style_border) border = *style_border;

move(_entry, x - border.left, y - border.top);

/* This is what set_width_chars does. */

int minWidth = minWidthChars * std::max(font_metrics.get_approximate_digit_width(),

font_metrics.get_approximate_char_width());

_entry.set_size_request(std::max(width, minWidth) / Pango::SCALE, -1);

#endif

_entry.set_text(val);

if(!_entry.is_visible()) {

_entry.show();

_entry.grab_focus();

_entry.add_modal_grab();

}

void stop_editing() {

if(_entry.is_visible())

_entry.remove_modal_grab();

_entry.hide();

}

bool is_editing() const {

return _entry.is_visible();

}

sigc::signal<void, Glib::ustring> signal_editing_done() {

return _signal_editing_done;

}

Gtk::Entry &get_entry() {

return _entry;

}

protected:

virtual bool on_key_press_event(GdkEventKey *event) {

if(event->keyval == GDK_KEY_Escape) {

stop_editing();

return true;

}

return false;

}

virtual void on_size_allocate(Gtk::Allocation& allocation) {

Gtk::Fixed::on_size_allocate(allocation);

_underlay.size_allocate(allocation);

}

virtual void on_activate() {

_signal_editing_done(_entry.get_text());

}

private:

Gtk::Widget &_underlay;

Gtk::Entry _entry;

sigc::signal<void, Glib::ustring> _signal_editing_done;

};

/* Graphics window */

int DeltaYOfScrollEvent(GdkEventScroll *event) {

#ifdef HAVE_GTK3

int delta_y = event->delta_y;

#else

int delta_y = 0;

#endif

if(delta_y == 0) {

switch(event->direction) {

case GDK_SCROLL_UP:

delta_y = -1;

break;

case GDK_SCROLL_DOWN:

delta_y = 1;

break;

default:

/* do nothing */

return false;

}

return delta_y;

}

class GraphicsWidget : public GlWidget {

public:

GraphicsWidget() {

set_events(Gdk::POINTER_MOTION_MASK |

Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK | Gdk::BUTTON_MOTION_MASK |

Gdk::SCROLL_MASK |

Gdk::LEAVE_NOTIFY_MASK);

set_double_buffered(true);

}

protected:

virtual bool on_configure_event(GdkEventConfigure *event) {

_w = event->width;

_h = event->height;

return GlWidget::on_configure_event(event);;

}

virtual void on_gl_draw() {

SS.GW.Paint();

}

virtual bool on_motion_notify_event(GdkEventMotion *event) {

int x, y;

ij_to_xy(event->x, event->y, x, y);

SS.GW.MouseMoved(x, y,

event->state & GDK_BUTTON1_MASK,

event->state & GDK_BUTTON2_MASK,

event->state & GDK_BUTTON3_MASK,

event->state & GDK_SHIFT_MASK,

event->state & GDK_CONTROL_MASK);

return true;

}

virtual bool on_button_press_event(GdkEventButton *event) {

int x, y;

ij_to_xy(event->x, event->y, x, y);

switch(event->button) {

case 1:

if(event->type == GDK_BUTTON_PRESS)

SS.GW.MouseLeftDown(x, y);

else if(event->type == GDK_2BUTTON_PRESS)

SS.GW.MouseLeftDoubleClick(x, y);

break;

case 2:

case 3:

SS.GW.MouseMiddleOrRightDown(x, y);

break;

}

return true;

}

virtual bool on_button_release_event(GdkEventButton *event) {

int x, y;

ij_to_xy(event->x, event->y, x, y);

switch(event->button) {

case 1:

SS.GW.MouseLeftUp(x, y);

break;

case 3:

SS.GW.MouseRightUp(x, y);

break;

}

return true;

}

virtual bool on_scroll_event(GdkEventScroll *event) {

int x, y;

ij_to_xy(event->x, event->y, x, y);

SS.GW.MouseScroll(x, y, -DeltaYOfScrollEvent(event));

return true;

}

virtual bool on_leave_notify_event (GdkEventCrossing *) {

SS.GW.MouseLeave();

return true;

}

private:

int _w, _h;

void ij_to_xy(int i, int j, int &x, int &y) {

// Convert to xy (vs. ij) style coordinates,

// with (0, 0) at center

x = i - _w / 2;

y = _h / 2 - j;

}

};

class GraphicsWindowGtk : public Gtk::Window {

public:

GraphicsWindowGtk() : _overlay(_widget), _is_fullscreen(false) {

set_default_size(900, 600);

_box.pack_start(_menubar, false, true);

_box.pack_start(_overlay, true, true);

add(_box);

_overlay.signal_editing_done().

connect(sigc::mem_fun(this, &GraphicsWindowGtk::on_editing_done));

}

GraphicsWidget &get_widget() {

return _widget;

}

EditorOverlay &get_overlay() {

return _overlay;

}

Gtk::MenuBar &get_menubar() {

return _menubar;

}

bool is_fullscreen() const {

return _is_fullscreen;

}

bool emulate_key_press(GdkEventKey *event) {

return on_key_press_event(event);

}

protected:

virtual void on_show() {

Gtk::Window::on_show();

CnfThawWindowPos(this, "GraphicsWindow");

}

virtual void on_hide() {

CnfFreezeWindowPos(this, "GraphicsWindow");

Gtk::Window::on_hide();

}

virtual bool on_delete_event(GdkEventAny *) {

if(!SS.OkayToStartNewFile()) return true;

SS.Exit();

return true;

}

virtual bool on_window_state_event(GdkEventWindowState *event) {

_is_fullscreen = event->new_window_state & GDK_WINDOW_STATE_FULLSCREEN;

/* The event arrives too late for the caller of ToggleFullScreen

to notice state change; and it's possible that the WM will

refuse our request, so we can't just toggle the saved state */

SS.GW.EnsureValidActives();

return Gtk::Window::on_window_state_event(event);

}

virtual bool on_key_press_event(GdkEventKey *event) {

int chr;

switch(event->keyval) {

case GDK_KEY_Escape:

chr = GraphicsWindow::ESCAPE_KEY;

break;

case GDK_KEY_Delete:

chr = GraphicsWindow::DELETE_KEY;

break;

case GDK_KEY_Tab:

chr = '\t';

break;

case GDK_KEY_BackSpace:

case GDK_KEY_Back:

chr = '\b';

break;

default:

if(event->keyval >= GDK_KEY_F1 && event->keyval <= GDK_KEY_F12) {

chr = GraphicsWindow::FUNCTION_KEY_BASE + (event->keyval - GDK_KEY_F1);

} else {

chr = gdk_keyval_to_unicode(event->keyval);

}

if(event->state & GDK_SHIFT_MASK){

chr |= GraphicsWindow::SHIFT_MASK;

}

if(event->state & GDK_CONTROL_MASK) {

chr |= GraphicsWindow::CTRL_MASK;

}

if(chr && SS.GW.KeyDown(chr)) {

return true;

}

if(chr == '\t') {

// Workaround for https://bugzilla.gnome.org/show_bug.cgi?id=123994.

GraphicsWindow::MenuView(GraphicsWindow::MNU_SHOW_TEXT_WND);

return true;

}

return Gtk::Window::on_key_press_event(event);

}

virtual void on_editing_done(Glib::ustring value) {

SS.GW.EditControlDone(value.c_str());

}

private:

GraphicsWidget _widget;

EditorOverlay _overlay;

Gtk::MenuBar _menubar;

Gtk::VBox _box;

bool _is_fullscreen;

};

std::unique_ptr<GraphicsWindowGtk> GW;

void GetGraphicsWindowSize(int *w, int *h) {

Gdk::Rectangle allocation = GW->get_widget().get_allocation();

*w = allocation.get_width();

*h = allocation.get_height();

}

void InvalidateGraphics(void) {

GW->get_widget().queue_draw();

}

void PaintGraphics(void) {

GW->get_widget().queue_draw();

/* Process animation */

Glib::MainContext::get_default()->iteration(false);

}

void SetCurrentFilename(const std::string &filename) {

if(!filename.empty()) {

GW->set_title("SolveSpace - " + filename);

} else {

GW->set_title("SolveSpace - (not yet saved)");

}

void ToggleFullScreen(void) {

if(GW->is_fullscreen())

GW->unfullscreen();

else

GW->fullscreen();

}

bool FullScreenIsActive(void) {

return GW->is_fullscreen();

}

void ShowGraphicsEditControl(int x, int y, int fontHeight, int minWidthChars,

const std::string &val) {

Gdk::Rectangle rect = GW->get_widget().get_allocation();

// Convert to ij (vs. xy) style coordinates,

// and compensate for the input widget height due to inverse coord

int i, j;

i = x + rect.get_width() / 2;

j = -y + rect.get_height() / 2;

GW->get_overlay().start_editing(i, j, fontHeight, /*is_monospace=*/false, minWidthChars, val);

}

void HideGraphicsEditControl(void) {

GW->get_overlay().stop_editing();

}

bool GraphicsEditControlIsVisible(void) {

return GW->get_overlay().is_editing();

}

/* TODO: removing menubar breaks accelerators. */

void ToggleMenuBar(void) {

GW->get_menubar().set_visible(!GW->get_menubar().is_visible());

}

bool MenuBarIsVisible(void) {

return GW->get_menubar().is_visible();

}

/* Context menus */

class ContextMenuItem : public Gtk::MenuItem {

public:

static int choice;

ContextMenuItem(const Glib::ustring &label, int id, bool mnemonic=false) :

Gtk::MenuItem(label, mnemonic), _id(id) {

}

protected:

virtual void on_activate() {

Gtk::MenuItem::on_activate();

if(has_submenu())

return;

choice = _id;

}

/* Workaround for https://bugzilla.gnome.org/show_bug.cgi?id=695488.

This is used in addition to on_activate() to catch mouse events.

Without on_activate(), it would be impossible to select a menu item

via keyboard.

This selects the item twice in some cases, but we are idempotent.

virtual bool on_button_press_event(GdkEventButton *event) {

if(event->button == 1 && event->type == GDK_BUTTON_PRESS) {

on_activate();

return true;

}

return Gtk::MenuItem::on_button_press_event(event);

}

private:

int _id;

};

int ContextMenuItem::choice = 0;

static Gtk::Menu *context_menu = NULL, *context_submenu = NULL;

void AddContextMenuItem(const char *label, int id) {

Gtk::MenuItem *menu_item;

if(label)

menu_item = new ContextMenuItem(label, id);

else

menu_item = new Gtk::SeparatorMenuItem();

if(id == CONTEXT_SUBMENU) {

menu_item->set_submenu(*context_submenu);

context_submenu = NULL;

}

if(context_submenu) {

context_submenu->append(*menu_item);

} else {

if(!context_menu)

context_menu = new Gtk::Menu;

context_menu->append(*menu_item);

}

void CreateContextSubmenu(void) {

if(context_submenu) oops();

context_submenu = new Gtk::Menu;

}

int ShowContextMenu(void) {

if(!context_menu)

return -1;

Glib::RefPtr<Glib::MainLoop> loop = Glib::MainLoop::create();

context_menu->signal_deactivate().

connect(sigc::mem_fun(loop.operator->(), &Glib::MainLoop::quit));

ContextMenuItem::choice = -1;

context_menu->show_all();

context_menu->popup(3, GDK_CURRENT_TIME);

loop->run();

delete context_menu;

context_menu = NULL;

return ContextMenuItem::choice;

}

/* Main menu */

template<class MenuItem> class MainMenuItem : public MenuItem {

public:

MainMenuItem(const GraphicsWindow::MenuEntry &entry) :

MenuItem(), _entry(entry), _synthetic(false) {

Glib::ustring label(_entry.label);

for(size_t i = 0; i < label.length(); i++) {

if(label[i] == '&')

label.replace(i, 1, "_");

}

guint accel_key = 0;

Gdk::ModifierType accel_mods = Gdk::ModifierType();

switch(_entry.accel) {

case GraphicsWindow::DELETE_KEY:

accel_key = GDK_KEY_Delete;

break;

case GraphicsWindow::ESCAPE_KEY:

accel_key = GDK_KEY_Escape;

break;

case '\t':

accel_key = GDK_KEY_Tab;

break;

default:

accel_key = _entry.accel & ~(GraphicsWindow::SHIFT_MASK | GraphicsWindow::CTRL_MASK);

if(accel_key > GraphicsWindow::FUNCTION_KEY_BASE &&

accel_key <= GraphicsWindow::FUNCTION_KEY_BASE + 12)

accel_key = GDK_KEY_F1 + (accel_key - GraphicsWindow::FUNCTION_KEY_BASE - 1);

else

accel_key = gdk_unicode_to_keyval(accel_key);

if(_entry.accel & GraphicsWindow::SHIFT_MASK)

accel_mods |= Gdk::SHIFT_MASK;

if(_entry.accel & GraphicsWindow::CTRL_MASK)

accel_mods |= Gdk::CONTROL_MASK;

}

MenuItem::set_label(label);

MenuItem::set_use_underline(true);

if(!(accel_key & 0x01000000))

MenuItem::set_accel_key(Gtk::AccelKey(accel_key, accel_mods));

}

void set_active(bool checked) {

if(MenuItem::get_active() == checked)

return;

_synthetic = true;

MenuItem::set_active(checked);

}

protected:

virtual void on_activate() {

MenuItem::on_activate();

if(_synthetic)

_synthetic = false;

else if(!MenuItem::has_submenu() && _entry.fn)

_entry.fn(_entry.id);

}

private:

const GraphicsWindow::MenuEntry &_entry;

bool _synthetic;

};

static std::map<int, Gtk::MenuItem *> main_menu_items;

static void InitMainMenu(Gtk::MenuShell *menu_shell) {

Gtk::MenuItem *menu_item = NULL;

Gtk::MenuShell *levels[5] = {menu_shell, 0};

const GraphicsWindow::MenuEntry *entry = &GraphicsWindow::menu[0];

int current_level = 0;

while(entry->level >= 0) {

if(entry->level > current_level) {

Gtk::Menu *menu = new Gtk::Menu;

menu_item->set_submenu(*menu);

if((unsigned)entry->level >= sizeof(levels) / sizeof(levels[0]))

oops();

levels[entry->level] = menu;

}

current_level = entry->level;

if(entry->label) {

switch(entry->kind) {

case GraphicsWindow::MENU_ITEM_NORMAL:

menu_item = new MainMenuItem<Gtk::MenuItem>(*entry);

break;

case GraphicsWindow::MENU_ITEM_CHECK:

menu_item = new MainMenuItem<Gtk::CheckMenuItem>(*entry);

break;

case GraphicsWindow::MENU_ITEM_RADIO:

MainMenuItem<Gtk::CheckMenuItem> *radio_item =

new MainMenuItem<Gtk::CheckMenuItem>(*entry);

radio_item->set_draw_as_radio(true);

menu_item = radio_item;

break;

}

} else {

menu_item = new Gtk::SeparatorMenuItem();

}

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solvespace/src/gtk/gtkmain.cpp at python · realthunder/solvespace · GitHub

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