github
/
imgui
mirror of https://github.com/ocornut/imgui.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
Browse Source

MultiSelect: Box-Select: added scroll support.

pull/7804/head
ocornut 1 year ago
parent
f904a6646c
commit
aa4d64be92
4 changed files with 38 additions and 9 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 1
      imgui.h
  2. 1
      imgui_demo.cpp
  3. 1
      imgui_internal.h
  4. 42
      imgui_widgets.cpp

1
imgui.h
View File

@ -2734,6 +2734,7 @@ enum ImGuiMultiSelectFlags_
ImGuiMultiSelectFlags_SingleSelect = 1 << 0, // Disable selecting more than one item. This is available to allow single-selection code to use same code/logic is desired, but may not be very useful.
ImGuiMultiSelectFlags_NoSelectAll = 1 << 1, // Disable CTRL+A shortcut to set RequestSelectAll
ImGuiMultiSelectFlags_BoxSelect = 1 << 2, // Enable box-selection. Box-selection works better with little bit of spacing between items hit-box in order to be able to aim at empty space.
ImGuiMultiSelectFlags_NoBoxSelectScroll = 1 << 3, // Disable scrolling when box-selecting near edges of scope.
ImGuiMultiSelectFlags_ClearOnEscape = 1 << 4, // Clear selection when pressing Escape while scope is focused.
ImGuiMultiSelectFlags_ClearOnClickVoid = 1 << 5, // Clear selection when clicking on empty location within scope.
ImGuiMultiSelectFlags_ScopeWindow = 1 << 6, // Scope for _ClearOnClickVoid and _BoxSelect is whole window (Default). Use if (use if BeginMultiSelect() covers a whole window.

1
imgui_demo.cpp
View File

@ -3362,6 +3362,7 @@ static void ShowDemoWindowMultiSelect()
ImGui::CheckboxFlags("ImGuiMultiSelectFlags_SingleSelect", &flags, ImGuiMultiSelectFlags_SingleSelect);
ImGui::CheckboxFlags("ImGuiMultiSelectFlags_NoSelectAll", &flags, ImGuiMultiSelectFlags_NoSelectAll);
ImGui::CheckboxFlags("ImGuiMultiSelectFlags_BoxSelect", &flags, ImGuiMultiSelectFlags_BoxSelect);
ImGui::CheckboxFlags("ImGuiMultiSelectFlags_NoBoxSelectScroll", &flags, ImGuiMultiSelectFlags_NoBoxSelectScroll);
ImGui::CheckboxFlags("ImGuiMultiSelectFlags_ClearOnEscape", &flags, ImGuiMultiSelectFlags_ClearOnEscape);
ImGui::CheckboxFlags("ImGuiMultiSelectFlags_ClearOnClickVoid", &flags, ImGuiMultiSelectFlags_ClearOnClickVoid);
if (ImGui::CheckboxFlags("ImGuiMultiSelectFlags_ScopeWindow", &flags, ImGuiMultiSelectFlags_ScopeWindow) && (flags & ImGuiMultiSelectFlags_ScopeWindow))

1
imgui_internal.h
View File

@ -490,6 +490,7 @@ static inline int ImModPositive(int a, int b)
static inline float ImDot(const ImVec2& a, const ImVec2& b) { return a.x * b.x + a.y * b.y; }
static inline ImVec2 ImRotate(const ImVec2& v, float cos_a, float sin_a) { return ImVec2(v.x * cos_a - v.y * sin_a, v.x * sin_a + v.y * cos_a); }
static inline float ImLinearSweep(float current, float target, float speed) { if (current < target) return ImMin(current + speed, target); if (current > target) return ImMax(current - speed, target); return current; }
static inline float ImLinearRemapClamp(float s0, float s1, float d0, float d1, float x) { return ImSaturate((x - s0) / (s1 - s0)) * (d1 - d0) + d0; }
static inline ImVec2 ImMul(const ImVec2& lhs, const ImVec2& rhs) { return ImVec2(lhs.x * rhs.x, lhs.y * rhs.y); }
static inline bool ImIsFloatAboveGuaranteedIntegerPrecision(float f) { return f <= -16777216 || f >= 16777216; }
static inline float ImExponentialMovingAverage(float avg, float sample, int n) { avg -= avg / n; avg += sample / n; return avg; }

42
imgui_widgets.cpp
View File

@ -7105,6 +7105,7 @@ void ImGui::DebugNodeTypingSelectState(ImGuiTypingSelectState* data)
//-------------------------------------------------------------------------
// - DebugLogMultiSelectRequests() [Internal]
// - BoxSelectStart() [Internal]
// - BoxSelectScrollWithMouseDrag() [Internal]
// - BeginMultiSelect()
// - EndMultiSelect()
// - SetNextItemSelectionUserData()
@ -7133,6 +7134,23 @@ static void BoxSelectStart(ImGuiMultiSelectState* storage, ImGuiSelectionUserDat
storage->BoxSelectStartPosRel = storage->BoxSelectEndPosRel = ImGui::WindowPosAbsToRel(g.CurrentWindow, g.IO.MousePos);
}
static void BoxSelectScrollWithMouseDrag(ImGuiWindow* window, const ImRect& r)
{
ImGuiContext& g = *GImGui;
for (int n = 0; n < 2; n++)
{
float dist = (g.IO.MousePos[n] > r.Max[n]) ? g.IO.MousePos[n] - r.Max[n] : (g.IO.MousePos[n] < r.Min[n]) ? g.IO.MousePos[n] - r.Min[n] : 0.0f;
if (dist == 0.0f || (dist < 0.0f && window->Scroll[n] < 0.0f) || (dist > 0.0f && window->Scroll[n] >= window->ScrollMax[n]))
continue;
float speed_multiplier = ImLinearRemapClamp(g.FontSize, g.FontSize * 5.0f, 1.0f, 4.0f, ImAbs(dist)); // x1 to x4 depending on distance
float scroll_step = IM_ROUND(g.FontSize * 35.0f * speed_multiplier * ImSign(dist) * g.IO.DeltaTime);
if (n == 0)
ImGui::SetScrollX(window, window->Scroll[n] + scroll_step);
else
ImGui::SetScrollY(window, window->Scroll[n] + scroll_step);
}
}
// Return ImGuiMultiSelectIO structure. Lifetime: valid until corresponding call to EndMultiSelect().
ImGuiMultiSelectIO* ImGui::BeginMultiSelect(ImGuiMultiSelectFlags flags)
{
@ -7142,6 +7160,8 @@ ImGuiMultiSelectIO* ImGui::BeginMultiSelect(ImGuiMultiSelectFlags flags)
IM_ASSERT(g.CurrentMultiSelect == NULL); // No recursion allowed yet (we could allow it if we deem it useful)
IM_STATIC_ASSERT(offsetof(ImGuiMultiSelectTempData, IO) == 0); // Clear() relies on that.
g.CurrentMultiSelect = ms;
if ((flags & (ImGuiMultiSelectFlags_ScopeWindow | ImGuiMultiSelectFlags_ScopeRect)) == 0)
flags |= ImGuiMultiSelectFlags_ScopeWindow;
// FIXME: BeginFocusScope()
const ImGuiID id = window->IDStack.back();
@ -7257,6 +7277,7 @@ ImGuiMultiSelectIO* ImGui::EndMultiSelect()
IM_ASSERT(ms->FocusScopeId == g.CurrentFocusScopeId);
IM_ASSERT(g.CurrentMultiSelect != NULL && storage->Window == g.CurrentWindow);
const ImRect scope_rect = (ms->Flags & ImGuiMultiSelectFlags_ScopeRect) ? ImRect(ms->ScopeRectMin, ImMax(window->DC.CursorMaxPos, ms->ScopeRectMin)) : window->InnerClipRect;
if (ms->IsFocused)
{
// We currently don't allow user code to modify RangeSrcItem by writing to BeginIO's version, but that would be an easy change here.
@ -7272,25 +7293,30 @@ ImGuiMultiSelectIO* ImGui::EndMultiSelect()
storage->NavIdSelected = -1;
}
// Box-select: render selection rectangle
// FIXME-MULTISELECT: Scroll on box-select
if ((ms->Flags & ImGuiMultiSelectFlags_BoxSelect) && storage->BoxSelectActive)
{
// Box-select: render selection rectangle
ms->Storage->BoxSelectEndPosRel = WindowPosAbsToRel(window, g.IO.MousePos);
window->DrawList->AddRectFilled(ms->BoxSelectRectCurr.Min, ms->BoxSelectRectCurr.Max, GetColorU32(ImGuiCol_SeparatorHovered, 0.30f)); // FIXME-MULTISELECT: Styling
window->DrawList->AddRect(ms->BoxSelectRectCurr.Min, ms->BoxSelectRectCurr.Max, GetColorU32(ImGuiCol_NavHighlight)); // FIXME-MULTISELECT: Styling
ImRect box_select_r = ms->BoxSelectRectCurr;
box_select_r.ClipWith(scope_rect);
window->DrawList->AddRectFilled(box_select_r.Min, box_select_r.Max, GetColorU32(ImGuiCol_SeparatorHovered, 0.30f)); // FIXME-MULTISELECT: Styling
window->DrawList->AddRect(box_select_r.Min, box_select_r.Max, GetColorU32(ImGuiCol_NavHighlight)); // FIXME-MULTISELECT: Styling
// Box-select: scroll
ImRect scroll_r = scope_rect;
scroll_r.Expand(g.Style.FramePadding);
if ((ms->Flags & ImGuiMultiSelectFlags_ScopeWindow) && (ms->Flags & ImGuiMultiSelectFlags_NoBoxSelectScroll) == 0 && !scroll_r.Contains(g.IO.MousePos))
BoxSelectScrollWithMouseDrag(window, scroll_r);
}
}
if (ms->IsEndIO == false)
ms->IO.Requests.resize(0);
const ImRect scope_rect(ms->ScopeRectMin, ImMax(window->DC.CursorMaxPos, ms->ScopeRectMin));
const bool scope_hovered = (ms->Flags & ImGuiMultiSelectFlags_ScopeRect) ? IsMouseHoveringRect(scope_rect.Min, scope_rect.Max) : IsWindowHovered();
// Clear selection when clicking void?
// We specifically test for IsMouseDragPastThreshold(0) == false to allow box-selection!
if (scope_hovered && g.HoveredId == 0)
const bool scope_hovered = (ms->Flags & ImGuiMultiSelectFlags_ScopeRect) ? scope_rect.Contains(g.IO.MousePos) : IsWindowHovered();
if (scope_hovered && g.HoveredId == 0 && g.ActiveId == 0)
{
if (ms->Flags & ImGuiMultiSelectFlags_BoxSelect)
if (!storage->BoxSelectActive && !storage->BoxSelectStarting && g.IO.MouseClickedCount[0] == 1)

Write Preview
Loading…
Cancel
Save