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demo_gui.cc
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demo_gui.cc
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//
// demo_gui.cc
// Copyright (C) 2024 Richard Bradley
//
#include "gx/Window.hh"
#include "gx/Font.hh"
#include "gx/GuiBuilder.hh"
#include "gx/Gui.hh"
#include "gx/Print.hh"
using gx::print_err;
using gx::println_err;
constexpr int DEFAULT_WIDTH = 1280;
constexpr int DEFAULT_HEIGHT = 720;
constexpr int FONT_SIZE = 24;
// font data from VariableWidthFontData.cc
extern unsigned char VariableWidthFontData[];
extern unsigned long VariableWidthFontDataSize;
int main(int argc, char* argv[])
{
gx::Font fnt{FONT_SIZE};
if (!fnt.loadFromMemory(VariableWidthFontData, VariableWidthFontDataSize)) {
println_err("failed to load font");
return -1;
}
gx::GuiTheme theme{&fnt};
// button demo
gx::Gui gui;
gui.newPanel(
theme, 60, 80, gx::ALIGN_TOP_LEFT, gx::PANEL_FLOATING,
gx::guiVFrame(
gx::guiMargin(gx::guiTitleBar("BUTTONS"), 0,0,0,8),
gx::guiHFrame(
gx::guiButton(1, "B1\nline 2"),
gx::guiButton(2, gx::ALIGN_BOTTOM, "B2"),
gx::guiButton(3, gx::ALIGN_VCENTER, "B3"),
gx::guiButton(4, "B4"),
gx::guiVLine(),
gx::guiButton(5, gx::ALIGN_VJUSTIFY, "B5")),
gx::guiLabel(gx::ALIGN_CENTER, "\nRepeating Buttons"),
gx::guiHFrame(
gx::ALIGN_CENTER,
gx::guiButtonPress(77, -1, "ONCE"),
gx::guiButtonPress(78, 400000, "SLOW"),
gx::guiButtonPress(79, 1, "FAST")),
gx::guiHLine(),
gx::guiButton(99, gx::ALIGN_RIGHT, " QUIT ")));
// pull-down menu demo
gui.newPanel(
theme, 0, 0, gx::ALIGN_TOP_LEFT, 0,
gx::guiHFrame(
gx::guiMenu(
11, "File",
gx::guiMenuItem(11, "Open..."),
gx::guiMenuItem(12, "Save..."),
gx::guiHLine(),
gx::guiMenuItem(99, "Quit")),
gx::guiMenu(
12, "Help",
gx::guiMenuItem(13, "Manual"),
gx::guiMenuItem(14, "About"),
gx::guiSubMenu(
"sub1",
gx::guiMenuItem(15, "item 1"),
gx::guiMenuItem(16, "item 2"),
gx::guiMenuItem(17, "item 3")),
gx::guiSubMenu(
"sub2 long name",
gx::guiMenuItem(18, "item 4"),
gx::guiMenuItem(19, "item 5"),
gx::guiMenuItem(20, "item 6")) )));
// text entry demo
gui.newPanel(
theme, 60, 400, gx::ALIGN_TOP_LEFT, gx::PANEL_FLOATING,
gx::guiHFrame(
gx::guiMargin(gx::guiVTitleBar("ENTRIES"), 0,0,4,0),
gx::guiVFrame(
gx::guiHFrame(
gx::guiLabel(gx::ALIGN_CENTER_LEFT, " R"),
gx::guiCardinalEntry(31, 3.0f,3),
gx::guiLabel(gx::ALIGN_CENTER_LEFT, " G"),
gx::guiCardinalEntry(32, 3.0f,3),
gx::guiLabel(gx::ALIGN_CENTER_LEFT, " B"),
gx::guiCardinalEntry(33, 3.0f,3)),
gx::guiTextEntry(34, 18.0f,100),
gx::guiTextEntry(35, 18.0f,100,gx::ALIGN_CENTER),
gx::guiTextEntry(36, 18.0f,100,gx::ALIGN_RIGHT),
gx::guiIntegerEntry(37, 10.0f, 20),
gx::guiFloatEntry(38, 10.0f, 20) )));
// checkbox demo
gui.newPanel(
theme, 400, 80, gx::ALIGN_TOP_LEFT, gx::PANEL_FLOATING,
gx::guiVFrame(
gx::guiMargin(gx::guiTitleBar(), 0,0,0,8),
gx::guiCheckbox(51, true, "Option 1"),
gx::guiCheckbox(52, false, "Option 2"),
gx::guiHLine(),
gx::guiCheckbox(53, false, "Option 3\n(line 2)"),
gx::guiHLine(),
gx::guiCheckbox(54, false, "Option 4\n(line 2)\n(line 3)")));
// list select demo
gui.newPanel(
theme, 600, 80, gx::ALIGN_TOP_LEFT, gx::PANEL_FLOATING,
gx::guiVFrame(
gx::guiMargin(gx::guiTitleBar("LIST SELECTORS"), 0,0,0,8),
gx::guiHFrame(
gx::guiListSelect(
60, gx::ALIGN_JUSTIFY,
gx::guiListSelectItem(1, "item 1"),
gx::guiListSelectItem(2, "item two"),
gx::guiListSelectItem(3, "item three")),
gx::guiListSelect(
61, gx::ALIGN_JUSTIFY,
gx::guiListSelectItem(4, "item four"),
gx::guiListSelectItem(5, "item 5"),
gx::guiListSelectItem(6, "item six")) )));
// window setup
gx::Window win;
win.setTitle("GUI demo");
win.setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT, false);
if (!win.open()) {
println_err("failed to open window");
return -1;
}
fnt.makeAtlas(win);
bool running = true;
bool redraw = true;
gui.setBGColor(.1f,.3f,.1f);
// **** MAIN LOOP ****
while (running) {
// handle events
gx::Window::pollEvents();
const gx::EventState& es = win.eventState();
if (es.events & gx::EVENT_CLOSE) { running = false; }
if (es.events & gx::EVENT_SIZE) { redraw = true; }
if (es.events & gx::EVENT_KEY) {
if (es.keyPressCount(gx::KEY_ESCAPE, true)) { running = false; }
if (es.keyPressCount(gx::KEY_F11, false)) {
if (win.fullScreen()) {
win.setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT, false);
} else {
win.setSize(0, 0, true);
}
}
}
// update gui
redraw |= gui.update(win);
if (gui.event()) {
print_err("GUI event:", gui.event().eid);
switch (gui.event().type) {
case gx::GUI_ENTRY:
println_err("\ttext:\"", gui.eventText(), "\"");
break;
case gx::GUI_LISTSELECT:
println_err("\titem_no:", gui.event().item_no);
break;
case gx::GUI_MENU:
println_err("\tmenu_item_no:", gui.event().item_no);
// check quit menu item
if (gui.event().item_no == 99) { running = false; }
break;
case gx::GUI_CHECKBOX:
println_err("\tset:", gui.eventBool());
break;
default:
println_err();
break;
}
// check quit button
if (gui.event().eid == 99) { running = false; }
}
// draw frame
if (redraw) {
// something on screen changed - recreate GL buffers
win.draw(gui.drawList());
redraw = false;
}
win.renderFrame();
//println_err("time ", gx::Window::lastPollTime());
}
return 0;
}