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Inputs: Mouse: Add support for tracking multiple clicks more than just double (#3229)

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This commit is contained in:
Chris Savoie
2021-06-22 15:00:46 +02:00
committed by ocornut
parent 39b99072fb
commit 2318c764cf
4 changed files with 37 additions and 21 deletions
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30
imgui.cpp
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@ -3695,22 +3695,26 @@ static void ImGui::UpdateMouseInputs()
g.IO.MouseReleased[i] = !g.IO.MouseDown[i] && g.IO.MouseDownDuration[i] >= 0.0f;
g.IO.MouseDownDurationPrev[i] = g.IO.MouseDownDuration[i];
g.IO.MouseDownDuration[i] = g.IO.MouseDown[i] ? (g.IO.MouseDownDuration[i] < 0.0f ? 0.0f : g.IO.MouseDownDuration[i] + g.IO.DeltaTime) : -1.0f;
g.IO.MouseDoubleClicked[i] = false;
g.IO.MouseMultiClickCount[i] = 0;
if (g.IO.MouseClicked[i])
{
if ((float)(g.Time - g.IO.MouseClickedTime[i]) < g.IO.MouseDoubleClickTime)
{
ImVec2 delta_from_click_pos = IsMousePosValid(&g.IO.MousePos) ? (g.IO.MousePos - g.IO.MouseClickedPos[i]) : ImVec2(0.0f, 0.0f);
if (ImLengthSqr(delta_from_click_pos) < g.IO.MouseDoubleClickMaxDist * g.IO.MouseDoubleClickMaxDist)
g.IO.MouseDoubleClicked[i] = true;
g.IO.MouseClickedTime[i] = -g.IO.MouseDoubleClickTime * 2.0f; // Mark as "old enough" so the third click isn't turned into a double-click
g.IO.MouseMultiClickTracker[i]++;
else
g.IO.MouseMultiClickTracker[i] = 1;
}
else
{
g.IO.MouseClickedTime[i] = g.Time;
g.IO.MouseMultiClickTracker[i] = 1;
}
g.IO.MouseClickedTime[i] = g.Time;
g.IO.MouseClickedPos[i] = g.IO.MousePos;
g.IO.MouseDownWasDoubleClick[i] = g.IO.MouseDoubleClicked[i];
g.IO.MouseMultiClickCount[i] = g.IO.MouseMultiClickTracker[i];
g.IO.MouseDownMultiClickCount[i] = g.IO.MouseMultiClickTracker[i];
g.IO.MouseDragMaxDistanceAbs[i] = ImVec2(0.0f, 0.0f);
g.IO.MouseDragMaxDistanceSqr[i] = 0.0f;
}
@ -3722,8 +3726,9 @@ static void ImGui::UpdateMouseInputs()
g.IO.MouseDragMaxDistanceAbs[i].x = ImMax(g.IO.MouseDragMaxDistanceAbs[i].x, delta_from_click_pos.x < 0.0f ? -delta_from_click_pos.x : delta_from_click_pos.x);
g.IO.MouseDragMaxDistanceAbs[i].y = ImMax(g.IO.MouseDragMaxDistanceAbs[i].y, delta_from_click_pos.y < 0.0f ? -delta_from_click_pos.y : delta_from_click_pos.y);
}
if (!g.IO.MouseDown[i] && !g.IO.MouseReleased[i])
g.IO.MouseDownWasDoubleClick[i] = false;
g.IO.MouseDownMultiClickCount[i] = 0;
if (g.IO.MouseClicked[i]) // Clicking any mouse button reactivate mouse hovering which may have been deactivated by gamepad/keyboard navigation
g.NavDisableMouseHover = false;
}
@ -4765,7 +4770,14 @@ bool ImGui::IsMouseDoubleClicked(ImGuiMouseButton button)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown));
return g.IO.MouseDoubleClicked[button];
return g.IO.MouseMultiClickCount[button] == 2;
}
bool ImGui::IsMouseTripleClicked(ImGuiMouseButton button)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown));
return g.IO.MouseMultiClickCount[button] == 3;
}
// Return if a mouse click/drag went past the given threshold. Valid to call during the MouseReleased frame.
@ -5445,7 +5457,7 @@ static bool ImGui::UpdateWindowManualResize(ImGuiWindow* window, const ImVec2& s
if (hovered || held)
g.MouseCursor = (resize_grip_n & 1) ? ImGuiMouseCursor_ResizeNESW : ImGuiMouseCursor_ResizeNWSE;
if (held && g.IO.MouseDoubleClicked[0] && resize_grip_n == 0)
if (held && g.IO.MouseMultiClickCount[0] == 2 && resize_grip_n == 0)
{
// Manual auto-fit when double-clicking
size_target = CalcWindowSizeAfterConstraint(window, size_auto_fit);
@ -5980,7 +5992,7 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
{
// We don't use a regular button+id to test for double-click on title bar (mostly due to legacy reason, could be fixed), so verify that we don't have items over the title bar.
ImRect title_bar_rect = window->TitleBarRect();
if (g.HoveredWindow == window && g.HoveredId == 0 && g.HoveredIdPreviousFrame == 0 && IsMouseHoveringRect(title_bar_rect.Min, title_bar_rect.Max) && g.IO.MouseDoubleClicked[0])
if (g.HoveredWindow == window && g.HoveredId == 0 && g.HoveredIdPreviousFrame == 0 && IsMouseHoveringRect(title_bar_rect.Min, title_bar_rect.Max) && g.IO.MouseMultiClickCount[0] == 2)
window->WantCollapseToggle = true;
if (window->WantCollapseToggle)
{