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Viewport, Platform: Added work area in ImGuiPlatformMonitor. Renamed fields. (#1542)

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This commit is contained in:
omar 2018-04-23 12:38:20 +02:00
parent 456bbffcc4
commit 4433ce4312
5 changed files with 53 additions and 26 deletions
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11
examples/imgui_impl_glfw.cpp
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@ -521,25 +521,28 @@ static int ImGui_ImplGlfw_CreateVkSurface(ImGuiViewport* viewport, ImU64 vk_inst
#endif // GLFW_HAS_VULKAN
// FIXME-PLATFORM: Update when changed (using glfwSetMonitorCallback?)
// FIXME-PLATFORM: GLFW doesn't export work area (see https://github.com/glfw/glfw/pull/989)
static void ImGui_ImplGlfw_UpdateMonitors()
{
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
int monitors_count = 0;
GLFWmonitor** glfw_monitors = glfwGetMonitors(&monitors_count);
platform_io.Monitors.resize(monitors_count, ImGuiPlatformMonitor());
platform_io.Monitors.resize(0);
for (int n = 0; n < monitors_count; n++)
{
ImGuiPlatformMonitor monitor;
int x, y;
glfwGetMonitorPos(glfw_monitors[n], &x, &y);
const GLFWvidmode* vid_mode = glfwGetVideoMode(glfw_monitors[n]);
platform_io.Monitors[n].Pos = ImVec2((float)x, (float)y);
platform_io.Monitors[n].Size = ImVec2((float)vid_mode->width, (float)vid_mode->height);
monitor.FullMin = monitor.WorkMin = ImVec2((float)x, (float)y);
monitor.FullMax = monitor.WorkMax = ImVec2((float)(x + vid_mode->width), (float)(y + vid_mode->height));
#if GLFW_HAS_PER_MONITOR_DPI
// Warning: the validity of monitor DPI information on Windows depends on the application DPI awareness settings, which generally needs to be set in the manifest or at runtime.
float x_scale, y_scale;
glfwGetMonitorContentScale(glfw_monitors[n], &x_scale, &y_scale);
platform_io.Monitors[n].DpiScale = x_scale;
monitor.DpiScale = x_scale;
#endif
platform_io.Monitors.push_back(monitor);
}
}

19
examples/imgui_impl_sdl2.cpp
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@ -30,11 +30,13 @@
#include "imgui_impl_sdl2.h"
// SDL
// (the multi-viewports feature requires SDL features suppoted from SDL 2.0.5+)
#include <SDL.h>
#include <SDL_syswm.h>
#define SDL_HAS_CAPTURE_MOUSE SDL_VERSION_ATLEAST(2,0,4)
#define SDL_HAS_WINDOW_OPACITY SDL_VERSION_ATLEAST(2,0,5)
#define SDL_HAS_ALWAYS_ON_TOP SDL_VERSION_ATLEAST(2,0,5)
#define SDL_HAS_USABLE_DISPLAY_BOUNDS SDL_VERSION_ATLEAST(2,0,5)
#define SDL_HAS_PER_MONITOR_DPI SDL_VERSION_ATLEAST(2,0,4)
#define SDL_HAS_VULKAN SDL_VERSION_ATLEAST(2,0,6)
#if !SDL_HAS_VULKAN
@ -446,20 +448,27 @@ static int ImGui_ImplSDL2_CreateVkSurface(ImGuiViewport* viewport, ImU64 vk_inst
static void ImGui_ImplSDL2_UpdateMonitors()
{
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
platform_io.Monitors.resize(0);
int display_count = SDL_GetNumVideoDisplays();
platform_io.Monitors.resize(display_count, ImGuiPlatformMonitor());
for (int n = 0; n < display_count; n++)
{
// Warning: the validity of monitor DPI information on Windows depends on the application DPI awareness settings, which generally needs to be set in the manifest or at runtime.
ImGuiPlatformMonitor monitor;
SDL_Rect r;
SDL_GetDisplayBounds(n, &r);
platform_io.Monitors[n].Pos = ImVec2((float)r.x, (float)r.y);
platform_io.Monitors[n].Size = ImVec2((float)r.w, (float)r.h);
monitor.FullMin = monitor.WorkMin = ImVec2((float)(r.x), (float)(r.y));
monitor.FullMax = monitor.WorkMax = ImVec2((float)(r.x + r.w), (float)(r.y + r.h));
#if SDL_HAS_USABLE_DISPLAY_BOUNDS
SDL_GetDisplayUsableBounds(n, &r);
monitor.WorkMin = ImVec2((float)(r.x), (float)(r.y));
monitor.WorkMax = ImVec2((float)(r.x + r.w), (float)(r.y + r.h));
#endif
#if SDL_HAS_PER_MONITOR_DPI
float dpi = 0.0f;
SDL_GetDisplayDPI(n, &dpi, NULL, NULL);
platform_io.Monitors[n].DpiScale = dpi / 96.0f;
if (SDL_GetDisplayDPI(n, &dpi, NULL, NULL))
monitor.DpiScale = dpi / 96.0f;
#endif
platform_io.Monitors.push_back(monitor);
}
}

12
examples/imgui_impl_win32.cpp
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@ -550,11 +550,17 @@ static LRESULT CALLBACK ImGui_ImplWin32_WndProcHandler_PlatformWindow(HWND hWnd,
return DefWindowProc(hWnd, msg, wParam, lParam);
}
static BOOL CALLBACK ImGui_ImplWin32_UpdateMonitors_EnumFunc(HMONITOR monitor, HDC, LPRECT rect, LPARAM)
static BOOL CALLBACK ImGui_ImplWin32_UpdateMonitors_EnumFunc(HMONITOR monitor, HDC, LPRECT, LPARAM)
{
MONITORINFO info = { 0 };
info.cbSize = sizeof(MONITORINFO);
if (!::GetMonitorInfo(monitor, &info))
return TRUE;
ImGuiPlatformMonitor imgui_monitor;
imgui_monitor.Pos = ImVec2((float)rect->left, (float)rect->top);
imgui_monitor.Size = ImVec2((float)(rect->right - rect->left), (float)(rect->bottom - rect->top));
imgui_monitor.FullMin = ImVec2((float)info.rcMonitor.left, (float)info.rcMonitor.top);
imgui_monitor.FullMax = ImVec2((float)info.rcMonitor.right, (float)info.rcMonitor.bottom);
imgui_monitor.WorkMin = ImVec2((float)info.rcWork.left, (float)info.rcWork.top);
imgui_monitor.WorkMax = ImVec2((float)info.rcWork.right, (float)info.rcWork.bottom);
imgui_monitor.DpiScale = ImGui_ImplWin32_GetDpiScaleForMonitor(monitor);
ImGui::GetPlatformIO().Monitors.push_back(imgui_monitor);
return TRUE;

21
imgui.cpp
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@ -3802,6 +3802,13 @@ void ImGui::NewFrame()
// Disable feature, our back-ends do not support it
g.IO.ConfigFlags &= ~ImGuiConfigFlags_ViewportsEnable;
}
for (int monitor_n = 0; monitor_n < g.PlatformIO.Monitors.Size; monitor_n++)
{
ImGuiPlatformMonitor& mon = g.PlatformIO.Monitors[monitor_n];
IM_ASSERT(mon.FullMin.x < mon.FullMax.x && mon.FullMin.y < mon.FullMax.y && "Monitor bounds not setup properly.");
IM_ASSERT(mon.WorkMin.x < mon.WorkMax.x && mon.WorkMin.y < mon.WorkMax.y && "Monitor bounds not setup properly. If you don't have work area information, just copy Min/Max into them.");
IM_ASSERT(mon.DpiScale != 0.0f);
}
}
// Load settings on first frame
@ -5847,8 +5854,8 @@ static ImRect FindAllowedExtentRectForWindow(ImGuiWindow* window)
{
// Extent with be in the frame of reference of the given viewport (so Min is likely to be negative here)
const ImGuiPlatformMonitor& monitor = g.PlatformIO.Monitors[window->ViewportAllowPlatformMonitorExtend];
r_screen.Min = monitor.Pos;
r_screen.Max = monitor.Pos + monitor.Size;
r_screen.Min = monitor.WorkMin;
r_screen.Max = monitor.WorkMax;
}
else
{
@ -6028,7 +6035,7 @@ static ImVec2 CalcSizeAutoFit(ImGuiWindow* window, const ImVec2& size_contents)
const int monitor_idx = window->ViewportAllowPlatformMonitorExtend;
ImVec2 avail_size = window->Viewport->Size;
if (window->ViewportOwned)
avail_size = (monitor_idx >= 0 && monitor_idx < g.PlatformIO.Monitors.Size) ? g.PlatformIO.Monitors[monitor_idx].Size : ImVec2(FLT_MAX, FLT_MAX);
avail_size = (monitor_idx >= 0 && monitor_idx < g.PlatformIO.Monitors.Size) ? (g.PlatformIO.Monitors[monitor_idx].WorkMax - g.PlatformIO.Monitors[monitor_idx].WorkMin) : ImVec2(FLT_MAX, FLT_MAX);
ImVec2 size_auto_fit = ImClamp(size_contents, style.WindowMinSize, ImMax(style.WindowMinSize, avail_size - g.Style.DisplaySafeAreaPadding * 2.0f));
// When the window cannot fit all contents (either because of constraints, either because screen is too small),
@ -6099,8 +6106,7 @@ static int FindPlatformMonitorForPos(ImVec2 platform_pos)
for (int monitor_n = 0; monitor_n < g.PlatformIO.Monitors.Size; monitor_n++)
{
const ImGuiPlatformMonitor* monitor = &g.PlatformIO.Monitors[monitor_n];
ImRect monitor_rect(monitor->Pos, monitor->Pos + monitor->Size);
if (monitor_rect.Contains(platform_pos))
if (ImRect(monitor->FullMin, monitor->FullMax).Contains(platform_pos))
return monitor_n;
}
return -1;
@ -14252,7 +14258,10 @@ void ImGui::ShowMetricsWindow(bool* p_open)
for (int i = 0; i < g.PlatformIO.Monitors.Size; i++)
{
const ImGuiPlatformMonitor& mon = g.PlatformIO.Monitors[i];
ImGui::BulletText("Monitor #%d: DPI %.0f%%, Min (%.0f,%.0f), Max (%.0f,%.0f), Size (%.0f,%.0f)", i, mon.DpiScale * 100.0f, mon.Pos.x, mon.Pos.y, mon.Pos.x + mon.Size.x, mon.Pos.y + mon.Size.y, mon.Size.x, mon.Size.y);
ImGui::BulletText("Monitor #%d: DPI %.0f%%\n FullMin (%.0f,%.0f), FullMax (%.0f,%.0f), FullSize (%.0f,%.0f)\n WorkMin (%.0f,%.0f), WorkMax (%.0f,%.0f), WorkSize (%.0f,%.0f)",
i, mon.DpiScale * 100.0f,
mon.FullMin.x, mon.FullMin.y, mon.FullMax.x, mon.FullMax.y, mon.FullMax.x - mon.FullMin.x, mon.FullMax.y - mon.FullMin.y,
mon.WorkMin.x, mon.WorkMin.y, mon.WorkMax.x, mon.WorkMax.y, mon.WorkMax.x - mon.WorkMin.x, mon.WorkMax.y - mon.WorkMin.y);
}
ImGui::TreePop();
}

6
imgui.h
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@ -1876,10 +1876,10 @@ struct ImFont
// Dear ImGui only uses this to clamp the position of popups and tooltips so they don't straddle multiple monitors
struct ImGuiPlatformMonitor
{
ImVec2 Pos;
ImVec2 Size;
ImVec2 FullMin, FullMax; // Coordinates of the area displayed on this monitor (Min = upper left, Max = bottom right)
ImVec2 WorkMin, WorkMax; // (Optional) Coordinates without task bars / side bars / menu bars. imgui uses this to avoid positioning popups/tooltips inside this region.
float DpiScale;
ImGuiPlatformMonitor() { Pos = ImVec2(0,0); Size = ImVec2(0,0); DpiScale = 1.0f; }
ImGuiPlatformMonitor() { FullMin = FullMax = WorkMin = WorkMax = ImVec2(0,0); DpiScale = 1.0f; }
};
// (Optional) Setup required only if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable) is enabled