bool imguiCollapse(const char* text, const char* subtext, bool checked, bool enabled)
{
s_state.widgetId++;
unsigned int id = (s_state.areaId << 16) | s_state.widgetId;
int x = s_state.widgetX;
int y = s_state.widgetY - BUTTON_HEIGHT;
int w = s_state.widgetW;
int h = BUTTON_HEIGHT;
s_state.widgetY -= BUTTON_HEIGHT; // + DEFAULT_SPACING;
const int cx = x + BUTTON_HEIGHT / 2 - CHECK_SIZE / 2;
const int cy = y + BUTTON_HEIGHT / 2 - CHECK_SIZE / 2;
bool over = enabled && inRect(x, y, w, h);
bool res = buttonLogic(id, over);
if (checked)
AddGfxCmdTriangle(cx, cy, CHECK_SIZE, CHECK_SIZE, 2, SetRGBA(255, 255, 255, isActive(id) ? 255 : 200));
else
AddGfxCmdTriangle(cx, cy, CHECK_SIZE, CHECK_SIZE, 1, SetRGBA(255, 255, 255, isActive(id) ? 255 : 200));
if (enabled)
AddGfxCmdText(x + BUTTON_HEIGHT, y + BUTTON_HEIGHT / 2 - TEXT_HEIGHT / 2, TEXT_ALIGN_LEFT, text, isHot(id) ? SetRGBA(255, 196, 0, 255) : SetRGBA(255, 255, 255, 200));
else
AddGfxCmdText(x + BUTTON_HEIGHT, y + BUTTON_HEIGHT / 2 - TEXT_HEIGHT / 2, TEXT_ALIGN_LEFT, text, SetRGBA(128, 128, 128, 200));
if (subtext)
AddGfxCmdText(x + w - BUTTON_HEIGHT / 2, y + BUTTON_HEIGHT / 2 - TEXT_HEIGHT / 2, TEXT_ALIGN_RIGHT, subtext, SetRGBA(255, 255, 255, 128));
return res;
}
bool imguiCheck(const char* text, bool checked, bool enabled)
{
s_state.widgetId++;
unsigned int id = (s_state.areaId << 16) | s_state.widgetId;
int x = s_state.widgetX;
int y = s_state.widgetY - BUTTON_HEIGHT;
int w = s_state.widgetW;
int h = BUTTON_HEIGHT;
s_state.widgetY -= BUTTON_HEIGHT + DEFAULT_SPACING;
bool over = enabled && inRect(x, y, w, h);
bool res = buttonLogic(id, over);
const int cx = x + BUTTON_HEIGHT / 2 - CHECK_SIZE / 2;
const int cy = y + BUTTON_HEIGHT / 2 - CHECK_SIZE / 2;
AddGfxCmdRoundedRect((float)cx - 3, (float)cy - 3, (float)CHECK_SIZE + 6, (float)CHECK_SIZE + 6, 4, SetRGBA(128, 128, 128, isActive(id) ? 196 : 96));
if (checked)
{
if (enabled)
AddGfxCmdRoundedRect((float)cx, (float)cy, (float)CHECK_SIZE, (float)CHECK_SIZE, (float)CHECK_SIZE / 2 - 1, SetRGBA(255, 255, 255, isActive(id) ? 255 : 200));
else
AddGfxCmdRoundedRect((float)cx, (float)cy, (float)CHECK_SIZE, (float)CHECK_SIZE, (float)CHECK_SIZE / 2 - 1, SetRGBA(128, 128, 128, 200));
}
if (enabled)
AddGfxCmdText(x + BUTTON_HEIGHT, y + BUTTON_HEIGHT / 2 - TEXT_HEIGHT / 2, TEXT_ALIGN_LEFT, text, isHot(id) ? SetRGBA(255, 196, 0, 255) : SetRGBA(255, 255, 255, 200));
else
AddGfxCmdText(x + BUTTON_HEIGHT, y + BUTTON_HEIGHT / 2 - TEXT_HEIGHT / 2, TEXT_ALIGN_LEFT, text, SetRGBA(128, 128, 128, 200));
return res;
}
void imguiLabel(const char* text)
{
int x = s_state.widgetX;
int y = s_state.widgetY - BUTTON_HEIGHT;
s_state.widgetY -= BUTTON_HEIGHT;
AddGfxCmdText(x, y + BUTTON_HEIGHT / 2 - TEXT_HEIGHT / 2, TEXT_ALIGN_LEFT, text, SetRGBA(255, 255, 255, 255));
}
bool imguiBeginScrollArea(const char* name, int x, int y, int w, int h, int* scroll)
{
s_state.areaId++;
s_state.widgetId = 0;
g_scrollId = (s_state.areaId << 16) | s_state.widgetId;
s_state.widgetX = x + SCROLL_AREA_PADDING;
s_state.widgetY = y + h - AREA_HEADER + (*scroll);
s_state.widgetW = w - SCROLL_AREA_PADDING * 4;
g_scrollTop = y - AREA_HEADER + h;
g_scrollBottom = y + SCROLL_AREA_PADDING;
g_scrollRight = x + w - SCROLL_AREA_PADDING * 3;
g_scrollVal = scroll;
g_scrollAreaTop = s_state.widgetY;
g_focusTop = y - AREA_HEADER;
g_focusBottom = y - AREA_HEADER + h;
g_insideScrollArea = inRect(x, y, w, h, false);
s_state.insideCurrentScroll = g_insideScrollArea;
AddGfxCmdRoundedRect((float)x, (float)y, (float)w, (float)h, 6, SetRGBA(0, 0, 0, 192));
AddGfxCmdText(x + AREA_HEADER / 2, y + h - AREA_HEADER / 2 - TEXT_HEIGHT / 2, TEXT_ALIGN_LEFT, name, SetRGBA(255, 255, 255, 128));
AddGfxCmdScissor(x + SCROLL_AREA_PADDING, y + SCROLL_AREA_PADDING, w - SCROLL_AREA_PADDING * 4, h - AREA_HEADER - SCROLL_AREA_PADDING);
return g_insideScrollArea;
}
void imguiValue(const char* text)
{
const int x = s_state.widgetX;
const int y = s_state.widgetY - BUTTON_HEIGHT;
const int w = s_state.widgetW;
s_state.widgetY -= BUTTON_HEIGHT;
AddGfxCmdText(x + w - BUTTON_HEIGHT / 2, y + BUTTON_HEIGHT / 2 - TEXT_HEIGHT / 2, TEXT_ALIGN_RIGHT, text, SetRGBA(255, 255, 255, 200));
}
void DebugDraw::DrawString(int x, int y, const char *string, ...)
{
b2::float32 h = static_cast<b2::float32>(g_camera.m_height);
char buffer[128];
va_list arg;
va_start(arg, string);
std::vsprintf(buffer, string, arg);
va_end(arg);
AddGfxCmdText(float(x), h - float(y), TEXT_ALIGN_LEFT, buffer, SetRGBA(230, 153, 153, 255));
}
bool imguiButton(const char* text, bool enabled)
{
s_state.widgetId++;
unsigned int id = (s_state.areaId << 16) | s_state.widgetId;
int x = s_state.widgetX;
int y = s_state.widgetY - BUTTON_HEIGHT;
int w = s_state.widgetW;
int h = BUTTON_HEIGHT;
s_state.widgetY -= BUTTON_HEIGHT + DEFAULT_SPACING;
bool over = enabled && inRect(x, y, w, h);
bool res = buttonLogic(id, over);
AddGfxCmdRoundedRect((float)x, (float)y, (float)w, (float)h, (float)BUTTON_HEIGHT / 2 - 1, SetRGBA(128, 128, 128, isActive(id) ? 196 : 96));
if (enabled)
AddGfxCmdText(x + BUTTON_HEIGHT / 2, y + BUTTON_HEIGHT / 2 - TEXT_HEIGHT / 2, TEXT_ALIGN_LEFT, text, isHot(id) ? SetRGBA(255, 196, 0, 255) : SetRGBA(255, 255, 255, 200));
else
AddGfxCmdText(x + BUTTON_HEIGHT / 2, y + BUTTON_HEIGHT / 2 - TEXT_HEIGHT / 2, TEXT_ALIGN_LEFT, text, SetRGBA(128, 128, 128, 200));
return res;
}
void DebugDraw::DrawString(const b2::Vec2& pw, const char *string, ...)
{
b2::Vec2 ps = g_camera.ConvertWorldToScreen(pw);
b2::float32 h = static_cast<b2::float32>(g_camera.m_height);
char buffer[128];
va_list arg;
va_start(arg, string);
std::vsprintf(buffer, string, arg);
va_end(arg);
AddGfxCmdText(ps.x, h - ps.y, TEXT_ALIGN_LEFT, buffer, SetRGBA(230, 153, 153, 255));
}
void AddGfxCmdText(int x, int y, TextAlign align, const char* text, unsigned int color)
{
AddGfxCmdText(float(x), float(y), align, text, color);
}
int main(int argc, char** argv)
{
#if defined(_WIN32)
// Enable memory-leak reports
_CrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF | _CrtSetDbgFlag(_CRTDBG_REPORT_FLAG));
#endif
g_camera.m_width = 1024;
g_camera.m_height = 640;
if (glfwInit() == 0)
{
fprintf(stderr, "Failed to initialize GLFW\n");
return -1;
}
char title[64];
sprintf(title, "Box2D Testbed Version %d.%d.%d", b2_version.major, b2_version.minor, b2_version.revision);
#if defined(__APPLE__)
// Not sure why, but these settings cause glewInit below to crash.
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
#endif
mainWindow = glfwCreateWindow(g_camera.m_width, g_camera.m_height, title, NULL, NULL);
if (mainWindow == NULL)
{
fprintf(stderr, "Failed to open GLFW mainWindow.\n");
glfwTerminate();
return -1;
}
glfwMakeContextCurrent(mainWindow);
printf("OpenGL %s, GLSL %s\n", glGetString(GL_VERSION), glGetString(GL_SHADING_LANGUAGE_VERSION));
glfwSetScrollCallback(mainWindow, sScrollCallback);
glfwSetWindowSizeCallback(mainWindow, sResizeWindow);
glfwSetKeyCallback(mainWindow, sKeyCallback);
glfwSetMouseButtonCallback(mainWindow, sMouseButton);
glfwSetCursorPosCallback(mainWindow, sMouseMotion);
glfwSetScrollCallback(mainWindow, sScrollCallback);
#if defined(__APPLE__) == FALSE
//glewExperimental = GL_TRUE;
GLenum err = glewInit();
if (GLEW_OK != err)
{
fprintf(stderr, "Error: %s\n", glewGetErrorString(err));
exit(EXIT_FAILURE);
}
#endif
g_debugDraw.Create();
sCreateUI();
testCount = 0;
while (g_testEntries[testCount].createFcn != NULL)
{
++testCount;
}
testIndex = b2Clamp(testIndex, 0, testCount - 1);
testSelection = testIndex;
entry = g_testEntries + testIndex;
test = entry->createFcn();
// Control the frame rate. One draw per monitor refresh.
glfwSwapInterval(1);
double time1 = glfwGetTime();
double frameTime = 0.0;
glClearColor(0.3f, 0.3f, 0.3f, 1.f);
while (!glfwWindowShouldClose(mainWindow))
{
glfwGetWindowSize(mainWindow, &g_camera.m_width, &g_camera.m_height);
glViewport(0, 0, g_camera.m_width, g_camera.m_height);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
unsigned char mousebutton = 0;
int mscroll = ui.scroll;
ui.scroll = 0;
double xd, yd;
glfwGetCursorPos(mainWindow, &xd, &yd);
int mousex = int(xd);
int mousey = int(yd);
mousey = g_camera.m_height - mousey;
int leftButton = glfwGetMouseButton(mainWindow, GLFW_MOUSE_BUTTON_LEFT);
if (leftButton == GLFW_PRESS)
mousebutton |= IMGUI_MBUT_LEFT;
imguiBeginFrame(mousex, mousey, mousebutton, mscroll);
sSimulate();
sInterface();
// Measure speed
double time2 = glfwGetTime();
double alpha = 0.9f;
frameTime = alpha * frameTime + (1.0 - alpha) * (time2 - time1);
time1 = time2;
char buffer[32];
snprintf(buffer, 32, "%.1f ms", 1000.0 * frameTime);
AddGfxCmdText(5, 5, TEXT_ALIGN_LEFT, buffer, WHITE);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_DEPTH_TEST);
RenderGLFlush(g_camera.m_width, g_camera.m_height);
glfwSwapBuffers(mainWindow);
glfwPollEvents();
}
g_debugDraw.Destroy();
RenderGLDestroy();
glfwTerminate();
return 0;
}
bool imguiSlider(const char* text, int* val, int vmin, int vmax, int vinc, bool enabled)
{
s_state.widgetId++;
unsigned int id = (s_state.areaId << 16) | s_state.widgetId;
int x = s_state.widgetX;
int y = s_state.widgetY - BUTTON_HEIGHT;
int w = s_state.widgetW;
int h = SLIDER_HEIGHT;
s_state.widgetY -= SLIDER_HEIGHT + DEFAULT_SPACING;
AddGfxCmdRoundedRect((float)x, (float)y, (float)w, (float)h, 4.0f, SetRGBA(0, 0, 0, 128));
const int range = w - SLIDER_MARKER_WIDTH;
float u = (*val - vmin) / float(vmax - vmin);
if (u < 0) u = 0;
if (u > 1) u = 1;
int m = (int)(u * range);
bool over = enabled && inRect(x + m, y, SLIDER_MARKER_WIDTH, SLIDER_HEIGHT);
bool res = buttonLogic(id, over);
bool valChanged = false;
if (isActive(id))
{
if (s_state.wentActive)
{
s_state.dragX = s_state.mx;
s_state.dragOrig = u;
}
if (s_state.dragX != s_state.mx)
{
u = s_state.dragOrig + (float)(s_state.mx - s_state.dragX) / (float)range;
if (u < 0) u = 0;
if (u > 1) u = 1;
*val = int(vmin + u*(vmax - vmin));
*val = int(floorf(*val / float(vinc) + 0.5f))*vinc; // Snap to vinc
m = (int)(u * range);
valChanged = true;
}
}
if (isActive(id))
AddGfxCmdRoundedRect((float)(x + m), (float)y, (float)SLIDER_MARKER_WIDTH, (float)SLIDER_HEIGHT, 4.0f, SetRGBA(255, 255, 255, 255));
else
AddGfxCmdRoundedRect((float)(x + m), (float)y, (float)SLIDER_MARKER_WIDTH, (float)SLIDER_HEIGHT, 4.0f, isHot(id) ? SetRGBA(255, 196, 0, 128) : SetRGBA(255, 255, 255, 64));
char msg[128];
snprintf(msg, 128, "%d", *val);
if (enabled)
{
AddGfxCmdText(x + SLIDER_HEIGHT / 2, y + SLIDER_HEIGHT / 2 - TEXT_HEIGHT / 2, TEXT_ALIGN_LEFT, text, isHot(id) ? SetRGBA(255, 196, 0, 255) : SetRGBA(255, 255, 255, 200));
AddGfxCmdText(x + w - SLIDER_HEIGHT / 2, y + SLIDER_HEIGHT / 2 - TEXT_HEIGHT / 2, TEXT_ALIGN_RIGHT, msg, isHot(id) ? SetRGBA(255, 196, 0, 255) : SetRGBA(255, 255, 255, 200));
}
else
{
AddGfxCmdText(x + SLIDER_HEIGHT / 2, y + SLIDER_HEIGHT / 2 - TEXT_HEIGHT / 2, TEXT_ALIGN_LEFT, text, SetRGBA(128, 128, 128, 200));
AddGfxCmdText(x + w - SLIDER_HEIGHT / 2, y + SLIDER_HEIGHT / 2 - TEXT_HEIGHT / 2, TEXT_ALIGN_RIGHT, msg, SetRGBA(128, 128, 128, 200));
}
return res || valChanged;
}
