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Merge branch 'tseeker/20171127-feature-horiz-wheel' of https://github.com/tseeker/imgui into tseeker-tseeker/20171127-feature-horiz-wheel

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# Conflicts:
#	examples/sdl_opengl2_example/imgui_impl_sdl_gl2.cpp
#	examples/sdl_opengl3_example/imgui_impl_sdl_gl3.cpp
This commit is contained in:
omar
2018-01-20 12:06:06 +01:00
parent d4bf9b4686 77a310736d
commit 6f6b6194b2
6 changed files with 45 additions and 8 deletions
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18
imgui.cpp
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@ -639,6 +639,7 @@ static bool IsKeyPressedMap(ImGuiKey key, bool repeat = true);
static ImFont* GetDefaultFont();
static void SetCurrentFont(ImFont* font);
static void SetCurrentWindow(ImGuiWindow* window);
static void SetWindowScrollX(ImGuiWindow* window, float new_scroll_x);
static void SetWindowScrollY(ImGuiWindow* window, float new_scroll_y);
static void SetWindowPos(ImGuiWindow* window, const ImVec2& pos, ImGuiCond cond);
static void SetWindowSize(ImGuiWindow* window, const ImVec2& size, ImGuiCond cond);
@ -2516,6 +2517,16 @@ void ImGui::NewFrame()
}
}
// Horizontal wheel scrolling; for consistency, only allowed if Ctrl is not pressed.
if (g.HoveredWindow && g.IO.MouseHorizWheel != 0.0f && !g.HoveredWindow->Collapsed)
{
ImGuiWindow* window = g.HoveredWindow;
if (!g.IO.KeyCtrl && !(window->Flags & ImGuiWindowFlags_NoScrollWithMouse))
{
SetWindowScrollX(window, window->Scroll.x - g.IO.MouseHorizWheel * 10.f);
}
}
// Pressing TAB activate widget focus
if (g.ActiveId == 0 && g.NavWindow != NULL && g.NavWindow->Active && IsKeyPressedMap(ImGuiKey_Tab, false))
g.NavWindow->FocusIdxTabRequestNext = 0;
@ -5609,6 +5620,13 @@ ImVec2 ImGui::GetWindowPos()
return window->Pos;
}
static void SetWindowScrollX(ImGuiWindow* window, float new_scroll_x)
{
window->DC.CursorMaxPos.x += window->Scroll.x; // SizeContents is generally computed based on CursorMaxPos which is affected by scroll position, so we need to apply our change to it.
window->Scroll.x = new_scroll_x;
window->DC.CursorMaxPos.x -= window->Scroll.x;
}
static void SetWindowScrollY(ImGuiWindow* window, float new_scroll_y)
{
window->DC.CursorMaxPos.y += window->Scroll.y; // SizeContents is generally computed based on CursorMaxPos which is affected by scroll position, so we need to apply our change to it.