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Exposed Scrollbar() in imgui_internal.h and removed a bool arg

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This commit is contained in:
omar 2017-10-13 13:29:42 +02:00
parent b667d5a9e7
commit f852b9a52a
2 changed files with 11 additions and 8 deletions
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18
imgui.cpp
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@ -644,7 +644,6 @@ static ImGuiWindow* FindHoveredWindow(ImVec2 pos, bool excluding_childs);
static ImGuiWindow* CreateNewWindow(const char* name, ImVec2 size, ImGuiWindowFlags flags);
static void ClearSetNextWindowData();
static void CheckStacksSize(ImGuiWindow* window, bool write);
static void Scrollbar(ImGuiWindow* window, bool horizontal);
static ImVec2 CalcNextScrollFromScrollTargetAndClamp(ImGuiWindow* window);
static void AddDrawListToRenderList(ImVector<ImDrawList*>& out_render_list, ImDrawList* draw_list);
@ -5299,9 +5298,9 @@ bool ImGui::Begin(const char* name, bool* p_open, const ImVec2& size_on_first_us
// Scrollbars
if (window->ScrollbarX)
Scrollbar(window, true);
Scrollbar(ImGuiLayoutType_Horizontal);
if (window->ScrollbarY)
Scrollbar(window, false);
Scrollbar(ImGuiLayoutType_Vertical);
// Render resize grip
// (after the input handling so we don't have a frame of latency)
@ -5522,9 +5521,12 @@ void ImGui::End()
// - We handle absolute seeking (when first clicking outside the grab) and relative manipulation (afterward or when clicking inside the grab)
// - We store values as normalized ratio and in a form that allows the window content to change while we are holding on a scrollbar
// - We handle both horizontal and vertical scrollbars, which makes the terminology not ideal.
static void Scrollbar(ImGuiWindow* window, bool horizontal)
void ImGui::Scrollbar(ImGuiLayoutType direction)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
const bool horizontal = (direction == ImGuiLayoutType_Horizontal);
const ImGuiStyle& style = g.Style;
const ImGuiID id = window->GetID(horizontal ? "#SCROLLX" : "#SCROLLY");
@ -5547,7 +5549,7 @@ static void Scrollbar(ImGuiWindow* window, bool horizontal)
window_rounding_corners = ImGuiCorner_BotLeft | (other_scrollbar ? 0 : ImGuiCorner_BotRight);
else
window_rounding_corners = (((window->Flags & ImGuiWindowFlags_NoTitleBar) && !(window->Flags & ImGuiWindowFlags_MenuBar)) ? ImGuiCorner_TopRight : 0) | (other_scrollbar ? 0 : ImGuiCorner_BotRight);
window->DrawList->AddRectFilled(bb.Min, bb.Max, ImGui::GetColorU32(ImGuiCol_ScrollbarBg), window_rounding, window_rounding_corners);
window->DrawList->AddRectFilled(bb.Min, bb.Max, GetColorU32(ImGuiCol_ScrollbarBg), window_rounding, window_rounding_corners);
bb.Expand(ImVec2(-ImClamp((float)(int)((bb.Max.x - bb.Min.x - 2.0f) * 0.5f), 0.0f, 3.0f), -ImClamp((float)(int)((bb.Max.y - bb.Min.y - 2.0f) * 0.5f), 0.0f, 3.0f)));
// V denote the main, longer axis of the scrollbar (= height for a vertical scrollbar)
@ -5567,7 +5569,7 @@ static void Scrollbar(ImGuiWindow* window, bool horizontal)
bool held = false;
bool hovered = false;
const bool previously_held = (g.ActiveId == id);
ImGui::ButtonBehavior(bb, id, &hovered, &held, ImGuiButtonFlags_NoNavFocus);
ButtonBehavior(bb, id, &hovered, &held, ImGuiButtonFlags_NoNavFocus);
float scroll_max = ImMax(1.0f, win_size_contents_v - win_size_avail_v);
float scroll_ratio = ImSaturate(scroll_v / scroll_max);
@ -5580,7 +5582,7 @@ static void Scrollbar(ImGuiWindow* window, bool horizontal)
// Click position in scrollbar normalized space (0.0f->1.0f)
const float clicked_v_norm = ImSaturate((mouse_pos_v - scrollbar_pos_v) / scrollbar_size_v);
ImGui::SetHoveredID(id);
SetHoveredID(id);
bool seek_absolute = false;
if (!previously_held)
@ -5616,7 +5618,7 @@ static void Scrollbar(ImGuiWindow* window, bool horizontal)
}
// Render
const ImU32 grab_col = ImGui::GetColorU32(held ? ImGuiCol_ScrollbarGrabActive : hovered ? ImGuiCol_ScrollbarGrabHovered : ImGuiCol_ScrollbarGrab);
const ImU32 grab_col = GetColorU32(held ? ImGuiCol_ScrollbarGrabActive : hovered ? ImGuiCol_ScrollbarGrabHovered : ImGuiCol_ScrollbarGrab);
if (horizontal)
window->DrawList->AddRectFilled(ImVec2(ImLerp(bb.Min.x, bb.Max.x, grab_v_norm), bb.Min.y), ImVec2(ImLerp(bb.Min.x, bb.Max.x, grab_v_norm) + grab_h_pixels, bb.Max.y), grab_col, style.ScrollbarRounding);
else

1
imgui_internal.h
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@ -890,6 +890,7 @@ namespace ImGui
IMGUI_API int CalcTypematicPressedRepeatAmount(float t, float t_prev, float repeat_delay, float repeat_rate);
IMGUI_API void Scrollbar(ImGuiLayoutType direction);
IMGUI_API void VerticalSeparator(); // Vertical separator, for menu bars (use current line height). not exposed because it is misleading what it doesn't have an effect on regular layout.
// FIXME-WIP: New Columns API